[go: up one dir, main page]

CN107352338B - Elevator energy-saving device based on dual energy storage mode and its control operation method - Google Patents

Elevator energy-saving device based on dual energy storage mode and its control operation method Download PDF

Info

Publication number
CN107352338B
CN107352338B CN201710789747.3A CN201710789747A CN107352338B CN 107352338 B CN107352338 B CN 107352338B CN 201710789747 A CN201710789747 A CN 201710789747A CN 107352338 B CN107352338 B CN 107352338B
Authority
CN
China
Prior art keywords
elevator
energy
inverter
state
converter
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201710789747.3A
Other languages
Chinese (zh)
Other versions
CN107352338A (en
Inventor
林清华
周碧清
康新
张琴
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Putian University
Original Assignee
Putian University
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Putian University filed Critical Putian University
Priority to CN201710789747.3A priority Critical patent/CN107352338B/en
Publication of CN107352338A publication Critical patent/CN107352338A/en
Application granted granted Critical
Publication of CN107352338B publication Critical patent/CN107352338B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B1/00—Control systems of elevators in general
    • B66B1/02—Control systems without regulation, i.e. without retroactive action
    • B66B1/06—Control systems without regulation, i.e. without retroactive action electric
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B1/00—Control systems of elevators in general
    • B66B1/34—Details, e.g. call counting devices, data transmission from car to control system, devices giving information to the control system

Landscapes

  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Elevator Control (AREA)

Abstract

The present invention provides a kind of energy-saving device of elevator based on dual energy memory module and its control operation method.The present invention uses the dual energy stocking system of two-way DC converter control being made of super capacitor mould group and battery mould group, is respectively used to store and provide transient state energy and steady state energy, realizes energy-efficient purpose.Voltage automatic switchover technology is used simultaneously, realizes that energy-saving device of elevator power supply and power grid are powered the seamless automatic switchover in two channels, so that the installation of energy saver and using not influencing in the safety and reliability used with elevator.Theory analysis and experimental result prove that the designed energy-saving device of elevator based on dual energy memory module is feasible and effective.Using technology of the invention can be 45% or more elevator energy-saving.

Description

Energy-saving device of elevator and its control operation method based on dual energy memory module
Technical field
The invention belongs to the energy for electrical domain, and in particular to a kind of energy-saving device of elevator based on dual energy memory module and It controls operation method.
Background technique
Carriage is moved back and forth along trapped orbit when elevator service, is a kind of cycle movement.Its operational process constantly will be electric The mechanical energy (motoring condition) of elevator and its object of transport can be converted into；Or electric energy (regenerative electric power shape is converted by mechanical energy State), the flowing of energy and variation tendency are inclined to the period.Using the method for similar Fourier analysis, elevator can be transported The caused positive energy exchange of row is decomposed into transient state energy and stable energy both energy models.
Transient state energy corresponds to elevator oneself state and changes caused energy transfer component.One empty elevator is whole up and down Operation is primary (operation one is back and forth), investigates the first and last state of elevator and its object of transport, empty elevator is still in original position It sets, state does not change, and the energy possessed does not also become.Empty elevator is run one week, elevator and extraneous positive energy exchange Accumulation and be zero, i.e. elevator and extraneous there is no energy transfers.Energy flow situation when empty elevator is run one week, uplink When elevator work in regenerative power generation state, externally release regeneration energy；Elevator work is externally absorbed in motoring condition when downlink Energy.Ideally, empty elevator should be equal to its energy consumed by motoring condition in the energy that generating state issues, Empty elevator is run one week, the accumulation of elevator and external world's institute positive energy exchange and be zero, consistent with the actual energy state of elevator.But In empty elevator operational process, the elevator of different location, energy state is constantly changing, and elevator is also constantly sent out with the external world Raw energy exchange.At this point, elevator is known as transient state energy by the energy that oneself state changes and is exchanged with the external world.According to Above-mentioned setting it is found that when ascending for elevator externally release transient state energy；Transient state energy is externally absorbed when downlink；Elevator runs one Period, the accumulation of transient state energy and be zero.
Steady state energy corresponds to elevator traffic Obj State and changes caused energy transfer component.One working passenger is from big After the bottom in building takes elevator arrival work floor, carries out the work in office, no longer take elevator in short-term, elevator no-load returns Return bottom marquis's ladder in building.The first and last state of elevator and its object of transport is investigated, the state of elevator does not change, its own institute The energy possessed does not change；Passenger position changes to office floor by the bottom, office story height institute where increasing it The integral energy of corresponding gravitional force, elevator and its object of transport increases.Elevator need to absorb energy from the external world, be converted into this Name passenger gravitional force corresponding to office floor.Energy flow state when loading elevator operation one week of a passenger: on Elevator work externally releases regeneration energy, but due to the presence of passenger, elevator traction machine two sides in regenerative power generation state when row Weight difference is reduced, elevator of the regeneration energy total amount discharged also less than unloaded uplink；It is under empty elevator when elevator downlink Row, elevator work in motoring condition, externally absorb energy.Operation one week, elevator is small in the energy total amount that generating state releases It in its energy total amount consumed by motoring condition, the accumulation of elevator and extraneous institute positive energy exchange and is not zero, has lacked elevator and multiplied Visitor's gravitional force corresponding to office floor, it is consistent with elevator and its actual energy state of object of transport.Conversely, the passenger Get off from office floor, when ascending for elevator is empty elevator uplink, releases regeneration energy；It is underloading elevator downlink when downlink, Energy is externally absorbed, but its energy total amount absorbed is less than the elevator of empty down.The energy that elevator is issued in generating state Total amount is greater than its energy total amount consumed by motoring condition, the accumulation of elevator and external world's institute positive energy exchange and is not zero, more Elevator passenger energy corresponding to the gravitional force of reduction, it is also consistent with elevator and its actual energy state of object of transport. Therefore, elevator is known as steady state energy with the extraneous energy exchanged since object of transport state changes.It can according to above-mentioned setting Know, for elevator traffic object, when ascending for elevator externally absorbs steady state energy；Steady state energy is externally released when downlink；Elevator Run energy total amount corresponding to the accumulation of a cycle steady state energy and the variable quantity for elevator traffic object gravitional force.
When elevator is run and extraneous positive energy exchange is the algebraical sum of transient state energy and steady state energy.Elevator no-load or underloading When uplink, the transient state energy externally discharged is greater than the steady state energy externally absorbed, and algebraical sum is less than zero, and overall externally release is again Raw energy, elevator work in regenerative power generation state；Conversely, the transient state energy externally discharged is less than external when elevator heavy duty uplink The steady state energy of absorption, algebraical sum are greater than zero, and overall externally to absorb energy, elevator works in motoring condition.The elevator of downlink With similar process.
Summary of the invention
The object of the present invention is to provide a kind of energy-saving device of elevator based on dual energy memory module and its control operation sides Method.
The present invention is implemented with the following technical solutions: a kind of energy-saving device of elevator based on dual energy memory module, special Sign is: including: elevator frequency converter, external power supply power grid passes through elevator frequency converter to elevator supply；Dual energy storage system, institute State the both ends that dual energy storage system is parallel to elevator frequency converter DC bus；The dual energy storage system includes being sequentially connected The first two-way DC converter, super capacitor mould group, the second two-way DC converter, battery mould group；Microprocessing systems, institute Micro process system is stated for controlling dual energy storage system；State of elevator detection circuit, the state of elevator detection circuit is for examining Survey elevator operation；The state of elevator detection circuit will test result and be sent to microprocessing systems；And fault cues and Processing circuit；The fault cues and processing circuit are controlled by microprocessing systems.
The present invention also provides a kind of control method of energy-saving device of elevator based on dual energy memory module, feature exists In: the following steps are included: S1: when elevator work is in regenerative power generation state, the regenerative electric energy that elevator traction machine is issued passes through After inversion circuit rectifies, it is transformed into direct current energy and is stored in the DC bus of frequency converter；State of elevator detection circuit Detect that elevator work after regenerative power generation state, if the energy in super capacitor mould group is lower than design value, controls first pair To DC converter, driving energy flows to super capacitor mould group from DC bus, and super capacitor mould group absorbs elevator and its transport The regeneration energy that object releases；If super capacitor mould group self-energy is higher than design value, the first two-way DC converter is closed, After frequency changer direct current bus voltage further increases, reach the operation voltage of braking resistor circuit, control circuit is by braking resistor Circuit accesses frequency changer direct current bus, and the regeneration energy that consumption elevator releases prevents frequency changer direct current bus overtension, protects Demonstrate,prove the normal use of elevator；S2: when elevator works in motoring condition, energy flows to elevator traction machine from frequency changer direct current bus, The voltage of frequency changer direct current bus reduces, and state of elevator detection circuit detects elevator work after motoring condition, if super electricity Molar group self-energy is higher than setting value, then controls the first two-way DC converter, and driving energy is straight from super capacitor mould group flow direction Bus is flowed, then flows to elevator traction machine, is used for elevator；If super capacitor mould group self-energy is lower than setting value, first is closed Two-way DC converter, after DC bus-bar voltage further decreases, energy is used by power grid by supply elevator after rectifier bridge； S3: when elevator belt carries uplink, the gravitional force of elevator traffic object increases, and elevator needs outwardly to absorb steady state energy, controls Circuit controls the second two-way DC converter, drives corresponding stable state energy according to state of elevator detection circuit information detected Amount flows to super capacitor mould group from electric discharge battery mould group；Ascending for elevator at this time, elevator externally discharge transient state energy；If lift boy Make in light condition, the steady state energy that elevator externally absorbs is less than the transient state energy externally discharged, and elevator works in regenerative electric power State, the super capacitor mould group in energy storage device absorb the regeneration energy that elevator releases by the first two-way DC converter, It is then lightly loaded escalator up, energy flows to super capacitor mould group from electric discharge battery mould group and elevator frequency converter two-way respectively together； If elevator heavy duty uplink, the steady state energy that elevator externally absorbs is greater than the transient state energy externally discharged, and elevator works in electronic shape State, energy flows to super capacitor mould group from electric discharge battery mould group, while energy flows to elevator frequency converter from super capacitor mould group； S4: when elevator belt carries downlink, the gravitional force of elevator traffic object is reduced, and elevator needs release steady state energy outward, control electricity Road controls the second two-way DC converter, drives corresponding steady state energy according to state of elevator detection circuit information detected Charging accumulator mould group is flowed to from super capacitor mould group；Elevator downlink at this time, elevator externally absorb transient state energy；If elevator works In light condition, then the steady state energy that elevator externally discharges is less than the transient state energy externally absorbed, and elevator works in motoring condition, Super capacitor mould group in energy storage device flows to elevator frequency converter by the first two-way DC converter；It is then lightly loaded descending elevator, Energy flows to charging accumulator mould group and elevator frequency converter from super capacitor mould group respectively；If elevator heavy duty downlink, elevator are external The steady state energy of release is greater than the transient state energy that externally absorbs, and elevator work is in regenerative power generation state, then energy is from elevator variable frequency Device flows to super capacitor mould group, while energy flows to charging accumulator mould group from super capacitor.
Compared with prior art, the present invention stores the transient state energy of elevator, battery using super capacitor mould group The steady state energy of mould group storage elevator.Energy saver power supply and power grid power supply are realized using voltage automatic switchover technology simultaneously Between seamless link.Theory analysis and test result demonstrate the energy-saving device of elevator based on dual energy memory module Feasibility and validity.The regeneration energy that ascending for elevator is issued simultaneously is stored in energy storage device, does not feed back to power grid, The quality of power grid is not just influenced, and billing issues are also not present.Test result show to be proposed based on dual energy memory module Energy-saving device of elevator can be 45% or more elevator energy-saving.
Detailed description of the invention
Fig. 1 is the principle of the present invention block diagram.
Fig. 2 is the two-way DC converter schematic diagram of one embodiment of the invention.
Fig. 3 is the energy storage pattern diagram of one embodiment of the invention energy-saving device of elevator.
Fig. 4 is that releasing for one embodiment of the invention energy-saving device of elevator can pattern diagram.
The energy consumption comparison schematic diagram of Fig. 5 specific embodiment of the invention.
Specific embodiment
Explanation is further explained to the present invention in the following with reference to the drawings and specific embodiments.
A kind of energy-saving device of elevator based on dual energy memory module comprising: elevator frequency converter, external power supply power grid are logical Elevator frequency converter is crossed to elevator supply；Dual energy storage system, the dual energy storage system are parallel to elevator frequency converter direct current The both ends of bus；The dual energy storage system includes sequentially connected first two-way DC converter, super capacitor mould group, Two two-way DC converters, battery mould group；Microprocessing systems, the micro process system is for controlling dual energy storage system；Electricity Terraced state detection circuit, the state of elevator detection circuit is for detecting elevator operation；The state of elevator detection circuit It will test result and be sent to microprocessing systems；And fault cues processing circuit；The fault cues processing circuit is by micro process System control.
Cardinal principle block diagram of the invention is referring to Fig. 1.
Further, the elevator frequency converter includes frequency converter rectification circuit, frequency changer direct current bus, inversion electricity Road and braking resistor circuit；The frequency converter rectification circuit input connects external power supply power grid；The frequency converter rectification circuit output The input of inversion circuit is connect through frequency changer direct current bus；Inversion circuit output connects elevator traction machine；The braking Resistance circuit is connect with frequency changer direct current bus.
The number of the super capacitor mould group calculates the following steps are included: being exchanged when elevator cars with full load whole process is run with external Energy is most, it is assumed that its are as follows:, whereinFor the coefficient of balance of elevator, M contains for elevator Amount of substance, S are lifting height of lift；Individually super capacitor voltage change in a charge and discharge process is, individually The energy of super capacitor storage are as follows:, C is the value of single capacitor；It is super needed for super capacitor mould group The number of capacitor are as follows:, the number of final super capacitor is TC=tC+b；B is safety allowance.
Further, the battery mould group number calculate the following steps are included:
When in the building all personnel Dou, the steady state energy in building is maximum where elevator, are as follows:, m is big The quality of personnel in building；H is the difference in height of personnel position and building import and export in building；The energy of single accumulators store Amount is, wherein U is the voltage rating of single battery, and I is the rated current of single battery；T is single electric power storage The electric discharge duration in pond；The required battery number of battery mould group, the number of final battery is TB=tB+c；C is peace Full allowance.
Battery mould group of the present invention is made of two group storage batteries, and two one group of group storage batteries are for charging, another group of use In electric discharge；Electrical storage battery number needed for each battery is。
Energy-storage system is formed using battery group and super capacitor group hybrid combining in energy saving system of elevator, due to battery Voltage difference between mould group, super capacitor mould group and elevator frequency converter DC bus-bar voltage three is very big, it is therefore desirable to design Two reversible transducers connect battery group, super capacitor group and the DC bus of elevator frequency converter.One two-way changing Device is used for the voltage difference of matched batteries group and super capacitor group, another reversible transducer is for matching super capacitor group and electricity The voltage difference of the DC bus-bar voltage of terraced frequency converter.The two reversible transducers driving energy as needed is in battery group, super It is flowed between grade capacitance group and elevator frequency converter, realizes the needs of energy storage in energy saving system of elevator.Due to entire energy conservation The power of system is larger, and converter designed by the present invention has selected circuit as shown in Figure 2 to become as the bidirectional, dc of system Parallel operation.First two-way DC converter includes 2n switching tube S11 ... Sn1 and switching tube S12 ... Sn2；One end of S11 ... Sn1 It is connect with dc-link capacitance one end；The other end of S11 ... Sn1 is connect with one end of inductance L1 ... Ln respectively；S12…Sn2 One end difference inductance L1 ... Ln one end connection；One end of S12 ... Sn2 is connect with the dc-link capacitance other end；Inductance The other end of L1 ... Ln is uniform to be connect with super capacitor mould group one end；The super capacitor mould group other end and dc-link capacitance are another End connection；Switching tube S11 ... Sn1, S 12 ... Sn2 controllably hold and connect with microprocessing systems；Control between branch, which uses, to interlock The method of control, to reduce the ripple of voltage and current；The second two-way DC converter structure and the first bidirectional, dc convert Device structure is consistent, and power is different.It is buck converter when the convertor controls energy flows to super capacitor mould group from DC bus (BUCK)；It is on the contrary then be booster converter (BOOST).The power of single branch is 500W in circuit topology, and n is according to reality Power that border circuit needs determines.Such as needing the power of 10KW, then n can be taken as 20.Meanwhile these branches Between control use Interleaved control method, to reduce the ripple of voltage and current.
The control method that the present invention also provides a kind of such as the above-mentioned energy-saving device of elevator based on dual energy memory module, The following steps are included:
S1: when elevator work is in regenerative power generation state, the regenerative electric energy that elevator traction machine is issued is inverse by frequency converter After becoming circuit rectifies, it is transformed into direct current energy and is stored in the DC bus of frequency converter；State of elevator detection circuit detects electricity Ladder work makees after regenerative power generation state, if the energy in super capacitor mould group is lower than design value, controls the change of the first bidirectional, dc Parallel operation, driving energy flow to super capacitor mould group from DC bus, and super capacitor mould group absorbs elevator and its object of transport release Regeneration energy out；If super capacitor mould group self-energy is higher than design value, the first two-way DC converter is closed, frequency converter is straight After stream busbar voltage further increases, reach the operation voltage of braking resistor circuit, control circuit accesses braking resistor circuit Frequency changer direct current bus, the regeneration energy that consumption elevator releases, prevents frequency changer direct current bus overtension, guarantees elevator Normal use；
S2: when elevator works in motoring condition, energy flows to elevator traction machine, frequency converter direct current from frequency changer direct current bus The voltage of bus reduces, and state of elevator detection circuit detects elevator work after motoring condition, if energy in super capacitor mould group Amount is higher than setting value, then controls the first two-way DC converter, driving energy flows to DC bus from super capacitor mould group, then flows To elevator traction machine, used for elevator；If super capacitor mould group self-energy is lower than setting value, the transformation of the first bidirectional, dc is closed Device, after DC bus-bar voltage further decreases, energy is used by power grid by supply elevator after rectifier bridge；
S3: when elevator belt carries uplink, the gravitional force of elevator traffic object increases, and elevator needs outwardly to absorb stable state energy Amount, control circuit control the second two-way DC converter according to state of elevator detection circuit information detected, drive corresponding Steady state energy flows to super capacitor mould group from electric discharge battery mould group；Ascending for elevator at this time, elevator externally discharge transient state energy；If Elevator works in light condition, and the steady state energy that elevator externally absorbs is less than the transient state energy externally discharged, and elevator works again Hair tonic electricity condition, the super capacitor mould group in energy storage device absorb the regeneration that elevator releases by the first two-way DC converter Energy, then be lightly loaded escalator up, and energy flows to super capacitor from electric discharge battery mould group and elevator frequency converter two-way respectively together Mould group；If elevator heavy duty uplink, the steady state energy that elevator externally absorbs is greater than the transient state energy externally discharged, and elevator works in electricity Dynamic state, energy flows to super capacitor mould group from electric discharge battery mould group, while energy flows to elevator from super capacitor mould group and becomes Frequency device；
S4: when elevator belt carries downlink, the gravitional force of elevator traffic object is reduced, and elevator needs release stable state energy outward Amount, control circuit control the second two-way DC converter according to state of elevator detection circuit information detected, drive corresponding Steady state energy flows to charging accumulator mould group from super capacitor mould group；Elevator downlink at this time, elevator externally absorb transient state energy；If Elevator works in light condition, then the steady state energy that elevator externally discharges is less than the transient state energy externally absorbed, and elevator work exists Motoring condition, the super capacitor mould group in energy storage device flow to elevator frequency converter by the first two-way DC converter；Then it is lightly loaded Descending elevator, energy flow to charging accumulator mould group and elevator frequency converter from super capacitor mould group respectively；If elevator heavy duty downlink, The steady state energy that elevator externally discharges is greater than the transient state energy that externally absorbs, elevator work in regenerative power generation state, then energy from Elevator frequency converter flows to super capacitor mould group, while energy flows to charging accumulator mould group from super capacitor.
The switching in elevator supply channel is by taking voltage difference to automatically switch: setting if the energy in super capacitor mould group is higher than Definite value, then by the first two-way DC converter by more than the voltage increase to peak value of frequency changer direct current bus, so that frequency converter Rectifier bridge reversely ends, and energy needed for elevator is provided by energy storage device；If super capacitor mould group self-energy is lower than setting value, close The first two-way DC converter is closed, frequency changer direct current bus voltage falls to peak value hereinafter, cutting power grid automatically with energy output It is powered；It is same to close two-way DC converter for energy saver from circuit by first if energy saver breaks down Excision, elevator are cut power grid automatically and are powered.
The detailed process of control method of the present invention is briefly illustrated by taking Fig. 3-4 as an example.
1) elevator is lightly loaded uplink, and the transient state energy externally discharged is greater than the steady state energy externally absorbed；Elevator heavy duty downlink, The transient state energy externally absorbed is less than the steady state energy externally discharged, both state elevators all work in regenerative power generation state. After the regenerative electric energy that elevator traction machine is issued passes through inversion circuit rectifies, it is transformed into direct current energy and is stored in frequency converter DC bus in.Since frequency converter rectification circuit prevents energy from flowing to power grid from frequency converter, braking resistor is only in direct current mother Line voltage just accesses after reaching setting voltage, therefore regenerative electric energy is deposited in frequency changer direct current bus.State of elevator detection circuit Elevator work is detected after regenerative power generation state, if the energy in super capacitor mould group is lower than design value, is controlled two-way straight Current converter 1, driving energy flow to super capacitor mould group from DC bus, and super capacitor mould group absorbs elevator and its object of transport The regeneration energy released, such as the energy stream 1 in Fig. 3.If super capacitor mould group self-energy is higher than design value, close two-way straight Current converter 1 after frequency changer direct current bus voltage further increases, reaches the operation voltage of braking resistor circuit, control circuit Braking resistor is accessed into frequency changer direct current bus, the regeneration energy that consumption elevator releases prevents frequency changer direct current bus voltage It is excessively high, guarantee the normal use of elevator, such as the energy stream 2 in Fig. 3.Work is not energy-efficient in the elevator of 2 state of energy stream, but guarantees The normal use of elevator.
2) elevator heavy duty uplink or when underloading downlink, elevator work is in motoring condition, and energy is from frequency changer direct current bus stream To elevator traction machine, the voltage of frequency changer direct current bus is reduced.State of elevator detection circuit detects elevator work in electronic shape After state, if super capacitor mould group self-energy is higher than setting value, two-way DC converter 1 is controlled, driving energy is from super capacitor Mould group flows to DC bus, then flows to elevator traction machine, uses for elevator, such as the energy stream 3 in Fig. 4；If super capacitor mould group Self-energy is lower than setting value, then closes two-way DC converter 1, after DC bus-bar voltage further decreases, energy is led to by power grid It supplies elevator after over commutation bridge to use, such as the energy stream 4 in Fig. 4.
3) voltage difference automatic switchover technology is taken in the switching of the channel of energy stream 3 and energy stream 4, and specific implementation principle is as follows. Power grid is 380V three-phase alternating current, becomes the direct current that peak value is 537.4V by rectifier bridge rectified voltage.If frequency converter DC bus-bar voltage is lower than 537.4V, then rectifier bridge is partially ON, and energy flows into frequency converter from external electrical network.Conversely, if frequency conversion The DC bus-bar voltage of device is higher than 537.4V, then rectifier bridge reversely ends, and energy can not flow into frequency converter from external electrical network.Herein The energy of super capacitor mould group is monitored, if the energy in super capacitor mould group is higher than setting value, passes through two-way DC converter 1 By the voltage increase of frequency changer direct current bus to 537.4V or more, so that frequency converter rectifier bridge reversely ends, energy needed for elevator It is provided by energy storage device.If super capacitor mould group self-energy is lower than setting value, two-way DC converter 1 is closed, frequency converter is straight Stream busbar voltage falls to 537.4V hereinafter, incision power grid is powered automatically with energy output.Equally, if energy saver occurs Failure, same to be cut off energy saver from circuit by closing two-way DC converter 1, elevator is cut power grid automatically and is supplied Electricity.Using voltage automatic switchover technology, the seamless automatic switchover of energy saver power supply and the power grid power supply of elevator can be effectively realized, Make the installation of energy saver and use not influence the safety and reliability that elevator uses.
4) when elevator belt carries uplink, the gravitional force of elevator traffic object increases, and elevator needs outwardly to absorb stable state energy Amount, control circuit control two-way DC converter 2 according to state of elevator detection circuit information detected, drive corresponding steady State energy flows to super capacitor mould group from electric discharge battery mould group, such as the energy stream 6 in Fig. 3 and Fig. 4.Ascending for elevator at this time, electricity It is terraced externally to release transient state energy.If elevator works in light condition, the steady state energy that elevator externally absorbs is less than externally release Transient state energy, super capacitor mould group of the elevator work in regenerative power generation state, energy storage device pass through two-way DC converter 1 Absorb the regeneration energy that elevator releases.It is then lightly loaded escalator up, energy is respectively from electric discharge battery mould group and elevator frequency converter Two-way flows to super capacitor mould group together, such as the energy stream 6 and energy stream 1 in Fig. 3；If elevator heavy duty uplink, elevator are externally inhaled The steady state energy of receipts is greater than the transient state energy that externally discharges, and elevator work is in motoring condition, and energy is from electric discharge battery mould group stream To super capacitor mould group, while energy flows to elevator frequency converter from super capacitor mould group, such as the energy stream 6 and energy stream in Fig. 4 3.It is required when making to have enough energy for elevator downlink in super capacitor mould group by both modes.
5) when elevator belt carries downlink, the gravitional force of elevator traffic object is reduced, and elevator needs release steady state energy outward. Control circuit controls two-way DC converter 2, drives corresponding stable state energy according to state of elevator detection circuit information detected Amount flows to charging accumulator mould group from super capacitor mould group, such as the energy stream 5 in Fig. 3 and Fig. 4.Elevator downlink at this time, elevator pair Outer absorption transient state energy.If elevator works in light condition, the steady state energy that elevator externally discharges is temporary less than externally absorbing State energy, super capacitor mould group of the elevator work in motoring condition, energy storage device provide elevator by two-way DC converter 1 Required energy.It is then lightly loaded descending elevator, energy flows to charging accumulator mould group and elevator variable frequency from super capacitor mould group respectively Device, such as the energy stream 5 and energy stream 3 in Fig. 4, if elevator heavy duty downlink, the steady state energy that elevator externally discharges, which is greater than, externally to be inhaled The transient state energy of receipts, elevator work in regenerative power generation state, then energy flows to super capacitor mould group, while energy from elevator frequency converter Amount flows to charging accumulator mould group from super capacitor, such as the energy stream 5 and energy stream 1 in Fig. 3.By both modes, make to surpass The transient state energy released when having enough space storage ascending for elevator in grade electric capacity module.
In the specific embodiment of the invention, the energy-saving effect testing scheme of elevator before and after installation energy saver are as follows: in elevator Consumed by 3169-20/21 clamp power meter test elevator of the point of incoming cables of frequency converter using the production of HIOKI company, Japan Energy consumption, 30% load operation of elevator one back and forth, compare elevator consumed energy before and after accessing this energy saver.Clamp Power meter measures the instantaneous energy consumption of access energy saver front and back elevator as shown in figure 5, total energy consumption is as shown in table 1:
1 elevator of table accesses total energy consumption data before and after energy saver
Before accessing energy saver After accessing energy saver
Uplink energy consumption (J) 13359 12937
Downlink energy consumption (J) 84089 40616
Total energy consumption (J) 97448 53553
The above are preferred embodiments of the present invention, all any changes made according to the technical solution of the present invention, and generated function is made When with range without departing from technical solution of the present invention, all belong to the scope of protection of the present invention.

Claims (7)

1.一种基于双能量存储模式的电梯节能装置，其特征在于：包括：1. an elevator energy-saving device based on dual energy storage mode, is characterized in that: comprise: 电梯变频器，外部供电电网通过电梯变频器向电梯供电；Elevator inverter, the external power grid supplies power to the elevator through the elevator inverter; 双能量存储系统，所述双能量存储系统并联于电梯变频器直流母线的两端；所述双能量存储系统包括依次连接的第一双向直流变换器、超级电容模组、第二双向直流变换器、蓄电池模组；Dual energy storage system, the dual energy storage system is connected in parallel with both ends of the DC bus of the elevator inverter; the dual energy storage system includes a first bidirectional DC converter, a super capacitor module, and a second bidirectional DC converter connected in sequence , battery module; 微处理系统，所述微处理系统用于控制双能量存储系统；a microprocessor system for controlling a dual energy storage system; 电梯状态检测电路，所述电梯状态检测电路用于检测电梯运行状态；所述电梯状态检测电路将检测结果传送至微处理系统；an elevator state detection circuit, the elevator state detection circuit is used to detect the running state of the elevator; the elevator state detection circuit transmits the detection result to the microprocessor system; 以及故障提示及处理电路；所述故障提示及处理电路由微处理系统控制；and a fault prompt and processing circuit; the fault prompt and processing circuit is controlled by a microprocessor system; 具体包括以下步骤：Specifically include the following steps: S1：当电梯工作在再生发电状态时，电梯曳引机所发出的再生电能通过变频器逆变电路整流后，转变成直流电能存储在变频器的直流母线内；电梯状态检测电路检测到电梯工作在再生发电状态后，若超级电容模组内的能量低于设计值，则控制第一双向直流变换器，驱动能量从直流母线流向超级电容模组，超级电容模组吸收电梯及其运输对象释放出的再生能量；若超级电容模组内能量高于设计值，则关闭第一双向直流变换器，变频器直流母线电压进一步升高后，达到制动电阻电路的动作电压，控制电路将制动电阻电路接入变频器直流母线，消耗电梯释放出的再生能量，防止变频器直流母线电压过高，保证电梯的正常使用；S1: When the elevator works in the state of regenerative power generation, the regenerative electric energy generated by the elevator traction machine is rectified by the inverter circuit of the inverter, and then converted into DC electric energy and stored in the DC bus of the inverter; the elevator state detection circuit detects that the elevator is working In the regenerative power generation state, if the energy in the supercapacitor module is lower than the design value, the first bidirectional DC converter is controlled, and the driving energy flows from the DC bus to the supercapacitor module, and the supercapacitor module absorbs the release of the elevator and its transport objects. If the energy in the supercapacitor module is higher than the design value, the first bidirectional DC converter will be turned off. After the DC bus voltage of the inverter is further increased, it will reach the operating voltage of the braking resistor circuit, and the control circuit will brake The resistance circuit is connected to the DC bus of the inverter, which consumes the regenerative energy released by the elevator, prevents the DC bus voltage of the inverter from being too high, and ensures the normal use of the elevator; S2：当电梯工作在电动状态，能量从变频器直流母线流向电梯曳引机，变频器直流母线的电压降低，电梯状态检测电路检测到电梯工作在电动状态后，若超级电容模组内能量高于设定值，则控制第一双向直流变换器，驱动能量从超级电容模组流向直流母线，再流向电梯曳引机，供电梯使用；若超级电容模组内能量低于设定值，则关闭第一双向直流变换器，直流母线电压进一步降低后，能量由电网通过整流桥后供给电梯使用；S2: When the elevator works in the electric state, the energy flows from the DC bus of the inverter to the elevator traction machine, the voltage of the DC bus of the inverter decreases, and the elevator state detection circuit detects that the elevator is in the electric state, if the energy in the super capacitor module is high At the set value, the first bidirectional DC converter is controlled, and the driving energy flows from the super capacitor module to the DC bus, and then to the elevator traction machine for elevator use; if the energy in the super capacitor module is lower than the set value, the The first bidirectional DC converter is turned off, and after the DC bus voltage is further reduced, the energy is supplied to the elevator by the power grid after passing through the rectifier bridge; S3：电梯带载上行时，电梯运输对象的重力势能增加，电梯需要向外界吸收稳态能量，控制电路根据电梯状态检测电路所检测的信息，控制第二双向直流变换器，驱动对应的稳态能量从放电蓄电池模组流向超级电容模组；此时电梯上行，电梯对外释放暂态能量；若电梯工作在轻载状态，电梯对外吸收的稳态能量小于对外释放的暂态能量，电梯工作在再生发电状态，储能装置中的超级电容模组通过第一双向直流变换器吸收电梯释放出的再生能量，则轻载上行电梯，能量分别从放电蓄电池模组和电梯变频器两路一起流向超级电容模组；若电梯重载上行，电梯对外吸收的稳态能量大于对外释放的暂态能量，电梯工作在电动状态，能量从放电蓄电池模组流向超级电容模组，同时能量从超级电容模组流向电梯变频器；S3: When the elevator goes up with load, the gravitational potential energy of the elevator transport object increases, and the elevator needs to absorb steady-state energy from the outside world. The control circuit controls the second bidirectional DC converter according to the information detected by the elevator state detection circuit to drive the corresponding steady-state energy. The energy flows from the discharged battery module to the supercapacitor module; at this time, the elevator goes up, and the elevator releases transient energy to the outside; if the elevator works in a light-load state, the steady-state energy absorbed by the elevator is less than the transient energy released to the outside, and the elevator works at In the regenerative power generation state, the supercapacitor module in the energy storage device absorbs the regenerative energy released by the elevator through the first bidirectional DC converter, and the light load goes up the elevator, and the energy flows from the discharged battery module and the elevator inverter to the supercapacitor. Capacitor module; if the elevator is overloaded and goes up, the steady-state energy absorbed by the elevator is greater than the transient energy released externally, the elevator works in an electric state, and the energy flows from the discharged battery module to the supercapacitor module, while the energy flows from the supercapacitor module. Flow to the elevator inverter; S4：电梯带载下行时，电梯运输对象的重力势能减少，电梯需要向外释放稳态能量，控制电路根据电梯状态检测电路所检测的信息，控制第二双向直流变换器，驱动对应的稳态能量从超级电容模组流向充电蓄电池模组；此时电梯下行，电梯对外吸收暂态能量；若电梯工作在轻载状态，则电梯对外释放的稳态能量小于对外吸收的暂态能量，电梯工作在电动状态，储能装置中的超级电容模组通过第一双向直流变换器流向电梯变频器；则轻载下行电梯，能量分别从超级电容模组流向充电蓄电池模组和电梯变频器；若电梯重载下行，电梯对外释放的稳态能量大于对外吸收的暂态能量，电梯工作在再生发电状态，则能量从电梯变频器流向超级电容模组，同时能量从超级电容模组流向充电蓄电池模组。S4: When the elevator goes down with load, the gravitational potential energy of the elevator transport object decreases, and the elevator needs to release steady-state energy outward. The control circuit controls the second bidirectional DC converter according to the information detected by the elevator state detection circuit to drive the corresponding steady-state energy. The energy flows from the supercapacitor module to the charging battery module; at this time, the elevator goes down, and the elevator absorbs transient energy externally; if the elevator works in a light-load state, the steady-state energy released by the elevator is less than the transient energy absorbed by the elevator, and the elevator works In the electric state, the supercapacitor module in the energy storage device flows to the elevator inverter through the first bidirectional DC converter; then the elevator goes down with light load, and the energy flows from the supercapacitor module to the charging battery module and the elevator inverter respectively; When the elevator goes down with heavy load, the steady-state energy released by the elevator is greater than the transient energy absorbed by the elevator, and the elevator works in the state of regenerative power generation, so the energy flows from the elevator inverter to the super capacitor module, and at the same time, the energy flows from the super capacitor module to the charging battery module. . 2.根据权利要求1所述的基于双能量存储模式的电梯节能装置，其特征在于：所述电梯变频器包括变频器整流电路、变频器直流母线、变频器逆变电路及制动电阻电路；所述变频器整流电路输入接外部供电电网；所述变频器整流电路输出经变频器直流母线接变频器逆变电路输入；变频器逆变电路输出接电梯曳引机；所述制动电阻电路与变频器直流母线连接。2. The elevator energy-saving device based on dual energy storage mode according to claim 1, wherein the elevator frequency converter comprises a frequency converter rectifier circuit, a frequency converter DC bus, a frequency converter inverter circuit and a braking resistor circuit; The input of the inverter rectifier circuit is connected to the external power supply grid; the output of the inverter rectifier circuit is connected to the inverter inverter circuit input through the inverter DC bus; the inverter inverter circuit output is connected to the elevator traction machine; the braking resistor circuit Connect to the inverter DC bus. 3.根据权利要求1所述的基于双能量存储模式的电梯节能装置，其特征在于：所述超级电容模组的个数计算包括以下步骤：3. The elevator energy-saving device based on dual-energy storage mode according to claim 1, wherein: the calculation of the number of the super capacitor modules comprises the following steps: 电梯满载全程运行时与外接交换的能量最多，假设其为：EC＝ΔMgS＝(1-a)MgS，其中a为电梯的平衡系数，M为电梯内载物质量，S为电梯提升高度；When the elevator is fully loaded, the energy exchanged with the outside is the most, and it is assumed that it is: E C =ΔMgS=(1-a)MgS, where a is the balance coefficient of the elevator, M is the mass of the load in the elevator, and S is the lift height of the elevator; 单个超级电容在一次充放电过程中电压变化为U2～U1，单个超级电容存储的能量为：EC1＝0.5C(U1 2-U2 2)，C为单个电容的值；The voltage change of a single super capacitor during one charge and discharge process is U 2 ～ U 1 , the energy stored by a single super capacitor is: E C1 =0.5C(U 1 2 -U 2 2 ), and C is the value of a single capacitor; 超级电容模组所需超级电容的个数为：最终超级电容的个数为TC＝tC+b；b为安全裕量。The number of super capacitors required by the super capacitor module is: The final number of supercapacitors is T C =t C +b; b is a safety margin. 4.根据权利要求1所述的基于双能量存储模式的电梯节能装置，其特征在于：所述蓄电池模组的个数计算包括以下步骤：4. The elevator energy-saving device based on dual energy storage mode according to claim 1, wherein the calculation of the number of the battery modules comprises the following steps: 当所有人员都在楼内时，电梯所在大楼的稳态能量最大，为：EB＝∑mgh，m为大楼内人员的质量；h为大楼内人员所在位置与大楼进出口处的高度差；When all the people are in the building, the steady-state energy of the building where the elevator is located is the largest, which is: E B =∑mgh, m is the mass of the people in the building; h is the height difference between the location of the people in the building and the entrance and exit of the building; 单个蓄电池存储的能量为EB1＝UIt，其中U为单个蓄电池的额定电压，I为单个蓄电池的额定电流；t为单个蓄电池的放电时长；The energy stored by a single battery is E B1 =UIt, where U is the rated voltage of a single battery, I is the rated current of a single battery; t is the discharge time of a single battery; 蓄电池模组的所需蓄电池个数最终蓄电池的个数为TB＝tB+c；c为安全裕量。The number of batteries required for the battery module The final number of batteries is T B =t B +c; c is the safety margin. 5.根据权利要求4所述的基于双能量存储模式的电梯节能装置，其特征在于：所述蓄电池模组由两组蓄电池构成，两组蓄电池一组用于充电，另一组用于放电；每组蓄电池所需蓄电电池组个数为T‘B＝TB。5. The elevator energy-saving device based on dual energy storage mode according to claim 4, wherein the battery module is composed of two groups of batteries, one of the two groups of batteries is used for charging, and the other group is used for discharging; The number of battery packs required for each battery pack is T' B =TB . 6.根据权利要求1所述的基于双能量存储模式的电梯节能装置，其特征在于：所述第一双向直流变换器用于匹配超级电容模组与电梯变频器的直流母线电压的电压差，第二双向直流变换器用于匹配蓄电池模组与超级电容模组的电压差；第一双向直流变换器包括2n个开关管S11…Sn1，和开关管S12…Sn2；S11…Sn1的一端均与直流母线电容一端连接；S11…Sn1的另一端分别与电感L1…Ln的一端连接；S12…Sn2的一端分别与电感L1…Ln的一端连接；S12…Sn2的另一端均与直流母线电容另一端连接；电感L1…Ln的另一端均一与超级电容模组一端连接；超级电容模组另一端与直流母线电容另一端连接；开关管S11…Sn1、S12…Sn2可控端与微处理系统连接；支路之间的控制采用交错控制的方法，以降低电压电流的纹波；所述第二双向直流变换器结构与第一双向直流变换器结构一致，功率不同。6. The elevator energy-saving device based on dual energy storage mode according to claim 1, characterized in that: the first bidirectional DC converter is used to match the voltage difference of the DC bus voltage of the super capacitor module and the elevator frequency converter, the first Two bidirectional DC converters are used to match the voltage difference between the battery module and the super capacitor module; the first bidirectional DC converter includes 2n switching tubes S11...Sn1, and switching tubes S12...Sn2; one end of S11...Sn1 is connected to the DC bus. One end of the capacitor is connected; the other end of S11...Sn1 is connected to one end of the inductor L1...Ln respectively; one end of S12...Sn2 is connected to one end of the inductor L1...Ln respectively; the other end of S12...Sn2 is connected to the other end of the DC bus capacitor; The other ends of the inductors L1...Ln are all connected to one end of the supercapacitor module; the other end of the supercapacitor module is connected to the other end of the DC bus capacitor; the controllable ends of the switch tubes S11...Sn1, S12...Sn2 are connected to the microprocessor system; the branch circuit The interleaving control method is adopted to reduce the ripple of voltage and current; the structure of the second bidirectional DC converter is the same as that of the first bidirectional DC converter, but the power is different. 7.根据权利要求1所述的基于双能量存储模式的电梯节能装置，其特征在于：电梯供电通道的切换通过采取电压差自动切换：若超级电容模组内的能量高于设定值，则通过第一双向直流变换器将变频器直流母线的电压提升到峰值以上，使得变频器整流桥反向截止，电梯所需能量由储能装置提供；若超级电容模组内能量低于设定值，则关闭第一双向直流变换器，变频器直流母线电压随能量输出掉落到峰值以下，自动切入电网进行供电；若节能装置发生故障，同样通过关闭第一双向直流变换器将节能装置从电路中切除，电梯自动切入电网进行供电。7. the elevator energy-saving device based on dual energy storage mode according to claim 1, is characterized in that: the switching of elevator power supply channel is automatically switched by taking voltage difference: if the energy in the super capacitor module is higher than the set value, then The voltage of the DC bus of the inverter is raised above the peak value through the first bidirectional DC converter, so that the inverter rectifier bridge is reversely cut off, and the energy required by the elevator is provided by the energy storage device; if the energy in the super capacitor module is lower than the set value , then turn off the first bidirectional DC converter, the DC bus voltage of the inverter drops below the peak value with the energy output, and automatically switches to the power grid to supply power; if the energy-saving device fails, the first bidirectional DC converter is also turned off. If it is cut off in the middle, the elevator will automatically switch to the power grid for power supply.
CN201710789747.3A 2017-09-05 2017-09-05 Elevator energy-saving device based on dual energy storage mode and its control operation method Active CN107352338B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710789747.3A CN107352338B (en) 2017-09-05 2017-09-05 Elevator energy-saving device based on dual energy storage mode and its control operation method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710789747.3A CN107352338B (en) 2017-09-05 2017-09-05 Elevator energy-saving device based on dual energy storage mode and its control operation method

Publications (2)

Publication Number Publication Date
CN107352338A CN107352338A (en) 2017-11-17
CN107352338B true CN107352338B (en) 2019-06-18

Family

ID=60289844

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201710789747.3A Active CN107352338B (en) 2017-09-05 2017-09-05 Elevator energy-saving device based on dual energy storage mode and its control operation method

Country Status (1)

Country Link
CN (1) CN107352338B (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110054045A (en) * 2019-05-20 2019-07-26 上海稳利达电力电子有限公司 It is a kind of for the seamless emergency of elevator, energy saver
CN110299844A (en) * 2019-07-03 2019-10-01 福建省特种设备检验研究院 A kind of two-way DC/DC converter of energy-conserving elevator
CN111697707B (en) * 2020-05-21 2021-11-30 日立楼宇技术（广州）有限公司 Wireless power supply method, device and system for elevator car and storage medium
CN113708396A (en) * 2021-08-27 2021-11-26 西安热工研究院有限公司 Elevator energy-saving control system and method based on grid connection of hybrid energy storage device
CN114229634B (en) * 2021-12-29 2024-03-22 苏州汇川控制技术有限公司 Elevator architecture, elevator control method, equipment and computer readable storage medium
WO2024221387A1 (en) * 2023-04-28 2024-10-31 华为数字能源技术有限公司 Voltage converter and service board
WO2024221386A1 (en) * 2023-04-28 2024-10-31 华为数字能源技术有限公司 Power supply structure and service single board

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1845417B (en) * 2006-04-10 2010-05-12 中国科学院电工研究所 A hybrid energy storage device for elevators and its control method
CN100588075C (en) * 2006-04-10 2010-02-03 中国科学院电工研究所 Hybrid energy storage device for elevator and control method thereof
JP5770112B2 (en) * 2012-01-10 2015-08-26 東芝エレベータ株式会社 Control device for hybrid drive elevator
CN102923537B (en) * 2012-11-13 2014-04-23 天津大学 Supercapacitor energy storage elevator integrated drive control device

Also Published As

Publication number Publication date
CN107352338A (en) 2017-11-17

Similar Documents

Publication Publication Date Title
CN107352338B (en) Elevator energy-saving device based on dual energy storage mode and its control operation method
EP2855321B1 (en) Elevator system with power storage device
CN100588074C (en) Hybrid energy storage device for elevator and control method thereof
CN1845417B (en) A hybrid energy storage device for elevators and its control method
CN100588075C (en) Hybrid energy storage device for elevator and control method thereof
CN102616145B (en) Regenerative braking energy storage device for electric automobile
CN109606208A (en) An off-grid railway traction power supply system and control method
CN101697429B (en) Micro power consumption elevator
CN103010868A (en) Elevator energy-saving system and control method thereof
CN101376347A (en) Multi-target integrated control energy-saving apparatus of subway electric power supply system
CN105610190B (en) Rail traffic vehicles renewable sources of energy feedback comprehensive utilization device and system
CN109968991A (en) DC traction power-supply system and its control method for rail traffic
Shreelakshmi et al. An energy efficient and environment friendly elevator system using ultracapacitor and fuel cell with power factor correction
CN105161985B (en) A kind of super capacitor cabinet
CN203306867U (en) Ultra-capacitor energy storage type elevator rescue device
Luri et al. Design of a supercapacitor based storage system for improved elevator applications
CN201530655U (en) Micro-energy consumption elevator
CN102372198B (en) Control device for elevator
CN207069597U (en) A kind of intelligent multi-function electric power system, elevator and steel mill oxygen lance electric power system
Liu et al. Analysis of energy management strategy for energy-storage type elevator based on supercapacitor
CN111864773A (en) In-phase energy storage power supply system, control method and measurement and control unit for electrified railway
CN202712946U (en) UPS charging module device
Li et al. A novel energy saving control system for elevator based on supercapacitor bank using fuzzy logic
Kumar et al. Investigation on recuperation of regenerative braking energy using ESS in (urban) rail transit system
CN109795331A (en) Comprehensive utilization system of wind power generation energy for urban rail trains and its control method

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant