CN120377449A - Energy storage power generation device and energy storage power generation method - Google Patents
Energy storage power generation device and energy storage power generation methodInfo
- Publication number
- CN120377449A CN120377449A CN202510671907.9A CN202510671907A CN120377449A CN 120377449 A CN120377449 A CN 120377449A CN 202510671907 A CN202510671907 A CN 202510671907A CN 120377449 A CN120377449 A CN 120377449A
- Authority
- CN
- China
- Prior art keywords
- generator
- motor
- battery pack
- energy
- electrically connected
- 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.)
- Pending
Links
Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/32—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from a charging set comprising a non-electric prime mover rotating at constant speed
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for AC mains or AC distribution networks
- H02J3/28—Arrangements for balancing of the load in a network by storage of energy
- H02J3/32—Arrangements for balancing of the load in a network by storage of energy using batteries with converting means
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/18—Structural association of electric generators with mechanical driving motors, e.g. with turbines
- H02K7/1807—Rotary generators
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention belongs to the technical field of power generation, and provides an energy storage power generation device and a power generation method, wherein the device comprises a generator, a driving mechanism for driving the generator and an energy supply mechanism for providing energy for the driving mechanism; the driving mechanism comprises a starting motor and an accelerating motor, wherein the starting motor and the accelerating motor are in transmission connection with the generator, the energy supply mechanism comprises a first battery pack and a second battery pack, the first battery pack is electrically connected with the starting motor, the second battery pack is electrically connected with the accelerating motor, a first output end of the generator is electrically connected with the first battery pack and the second battery pack, and a second output end of the generator is electrically connected with the load. The method comprises the steps of charging a first battery pack and a second battery pack when power generation is performed, starting a motor to drive a generator to generate power, recharging a part of power generated by the generator back to the first battery pack and the second battery pack, providing power for a load by the other part of power, and accelerating the motor to cut in and starting the motor to drive the generator to generate power together when the direct output voltage of the generator reaches a certain range.
Description
Technical Field
The invention relates to the technical field of power generation, in particular to an energy storage power generation device and an energy storage power generation method.
Background
The electricity consumption is different in different time periods every day in life. The electricity consumption in the electricity consumption peak period is called peak value, and the electricity consumption in the electricity consumption valley period is called valley value. Since the configuration of the power generation and transmission equipment of the power supply system is configured according to peak power demand. In the electricity consumption low valley period of the actual operation process of the power supply system, a large amount of surplus capacity can appear, the current electric power cannot be timely stored, and the timely capacity adjustment cannot be realized by large-scale power generation equipment, so that great waste of capacity is caused. In order to balance the electricity demand in different time periods, the electricity pricing realizes different pricing modes in different time periods, and the electricity utilization structure is adjusted through the action of the price lever, so that partial electricity users reduce electricity consumption in peak time, increase electricity consumption in valley time, realize peak clipping and valley filling, reduce the difference between the peak value and the valley value of power supply, improve the operation efficiency of a power supply system, reduce the cost and reduce the waste of productivity.
The general energy storage generator utilizes low-price electricity in electricity consumption valley period to be converted into compressed potential energy of compressed air or gravitational potential energy of liquid to realize energy storage, and when electricity consumption peak period is used, the stored energy is converted into electric energy again, so that the energy utilization rate can be improved, and the energy waste can be reduced. However, the gas phase or liquid phase energy storage generator has large energy storage space requirement, and the energy storage generator of gravitational potential energy conversion type has hard requirements on the field height difference and has no universality.
The application aims to solve the technical problems that the existing energy storage power generation device has high requirements on sites and has no universality.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention aims to provide an energy storage power generation device and an energy storage power generation method, which have the characteristics of simple and compact structure, low requirements on sites and good universality.
The technical scheme adopted by the invention is that the energy storage power generation device comprises a generator, a driving mechanism for driving the generator and an energy supply mechanism for providing energy for the driving mechanism;
The driving mechanism comprises a starting motor and an accelerating motor, and the starting motor and the accelerating motor are in transmission connection with the generator;
The energy supply mechanism comprises a first battery pack and a second battery pack, the first battery pack is electrically connected with the starting motor, the second battery pack is electrically connected with the accelerating motor, the first output end of the generator is electrically connected with the first battery pack and the second battery pack, and the second output end of the generator is electrically connected with the load.
According to the energy storage power generation device, the first battery pack and the second battery pack are arranged, the power grid is used for charging the first battery pack and the second battery pack in the electricity consumption valley period, the first battery pack and the second battery pack are used for supplying power to the starting motor and the accelerating motor respectively in the electricity consumption peak period, the starting motor is preferably a low-rotation-speed high-torque motor, the high-torque motor is used for driving the generator to start, after the rotation speed of the generator reaches a preset range, the accelerating motor with the high rotation speed is cut into the starting motor to drive the generator to generate power together, the rotation speed of the generator is driven to the preset rotation speed in a short time, so that the generator can directly output a voltage value in the preset range, the electric quantity generated by the motor is preferentially supplied to a load, and when the load is low in electricity consumption, the generator feeds back and charges the first battery pack and the second battery pack simultaneously, so that electric energy can be fully utilized, and energy waste is reduced. The power generation device stores energy by adopting the battery pack, so that the space required by energy storage can be reduced, the requirements on the field are lower, the universality is better, and the safety performance is higher.
In some embodiments, the driving mechanism further comprises a speed stabilizing motor, the accelerating motor is a double-headed motor, a first output shaft of the accelerating motor is coaxially connected with an input shaft of the generator, a second output shaft of the accelerating motor is coaxially connected with an output shaft of the speed stabilizing motor, the speed stabilizing motor is connected with the mains supply, the starting motor is arranged on one side of the generator, and an output shaft of the starting motor is connected with the input shaft of the generator through a transmission piece.
By adopting the technical scheme, after the rotating speed of the generator reaches a certain range, the speed stabilizing motor is cut into and started up to drive the generator together with the accelerating motor to generate electricity, so that the rotating speed of the generator can be stabilized within a certain range, and the generator can stably generate electricity for a long time due to the fact that the speed stabilizing motor is powered by mains supply, and the first battery pack and the second battery pack respectively supply power for the starting motor and the accelerating motor, so that the power consumption required by the speed stabilizing motor is saved compared with the power supply by the mains supply alone, and the output shaft of the accelerating motor and the output shaft of the speed stabilizing motor are directly connected with the input shaft of the generator, so that the transmission efficiency can be improved, and the energy loss is reduced.
In some embodiments, the output shaft of the acceleration motor is connected to the input shaft of the generator by a connecting shaft, and the output shaft of the starting motor is connected to the connecting shaft by a transmission.
In some embodiments, the driving member is a belt and a belt pulley, the belt pulley is sleeved on the connecting shaft, and the output shaft of the starting motor is connected with the belt pulley through the belt.
By adopting the technical scheme, the starting motor drives the connecting shaft to rotate in a small diameter by utilizing the output of a large diameter, and can provide larger torsion so that the starting motor drives the generator to start.
In some embodiments, the motor further comprises a counterweight wheel, wherein the counterweight wheel is arranged between the generator and the accelerating motor, and two ends of the counterweight wheel are respectively connected with an input shaft of the generator and an output shaft of the accelerating motor.
By adopting the technical scheme, the counterweight wheel plays roles of buffering and energy storage, so that the generator can be more stable in operation.
In some embodiments, the power distribution system further comprises a power distribution box and a power transformation box, wherein the power distribution box is electrically connected with the generator, the driving mechanism and the energy supply mechanism, the input end of the power transformation box is electrically connected with the generator, and the output end of the power transformation box is electrically connected with the first battery pack, the second battery pack and the load.
By adopting the technical scheme, the power distribution box is used for controlling the cooperative operation of the generator, the driving mechanism and the energy supply mechanism, and the power transformation box is used for adjusting the voltage directly output by the generator to be within the range of the required voltage value, so that the load and the first battery pack and the second battery pack can be conveniently connected.
In some embodiments, the power generator, the driving mechanism, the energy supply mechanism, the distribution box and the transformation box are all arranged on the frame.
By adopting the technical scheme, the generator, the driving mechanism, the energy supply mechanism, the distribution box and the transformation box are all arranged on the frame, so that the whole power generation device can form a whole, and the transfer and the transportation are convenient.
In some embodiments, the load is an electrical consumer or an energy storage cabinet.
By adopting the technical scheme, the load can be a direct electric appliance or an energy storage cabinet stores the electric quantity generated by the generator.
An energy storage power generation method, which is used for generating power by using the energy storage power generation device of any one of the above steps, comprises the following steps:
before power generation, the first battery pack and the second battery pack are charged;
The first battery pack provides electric energy for the starting motor, the driving motor drives the generator to start to generate electricity, part of the electric energy generated by the generator is used for recharging the first battery pack and the second battery pack, and the other part of the electric energy provides electric energy for the load;
When the direct output voltage of the generator reaches a first preset voltage threshold, the second battery pack provides electric energy for the accelerating motor, and the accelerating motor cuts in and starts the motor to drive the generator to generate electricity.
By adopting the technical scheme, the starting motor and the accelerating motor are connected into the driving generator step by step, so that the generator can be driven better, the generator can output required voltage faster, the starting motor and the accelerating motor share the power source of the generator, the loads of the starting motor and the accelerating motor can be reduced, the loss of electric energy is reduced, and the utilization rate of energy is improved.
In some embodiments, the method further comprises a steady speed motor, further comprising the steps of:
when the direct output voltage of the generator reaches a second preset voltage threshold, the commercial power supplies electric energy for the speed stabilizing motor, and the speed stabilizing motor cuts in and starts the motor to accelerate the motor to drive the generator to generate electricity together, so that the direct output voltage of the generator is stabilized at a third preset threshold.
By adopting the technical scheme, the generator can continuously and stably run by additionally arranging the speed stabilizing motor, and the energy consumption of the speed stabilizing motor can be reduced, so that the energy is saved.
Drawings
FIG. 1 is a schematic diagram of an energy storage power generation device according to a preferred embodiment of the present invention;
fig. 2 is a schematic structural diagram of the energy storage power generation device shown in fig. 1 from another perspective.
100 Parts of energy storage power generation device, 10 parts of power generator, 20 parts of driving mechanism, 21 parts of starting motor, 22 parts of accelerating motor, 23 parts of constant-speed motor, 24 parts of connecting shaft, 25 parts of belt, 26 parts of belt pulley, 30 parts of energy supply mechanism, 31 parts of battery box, 40 parts of counterweight wheel, 50 parts of distribution box, 60 parts of power transformation box, 70 parts of frame.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. When the number of one element is referred to as being "plural," it may be any number of two or more. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1 and 2, an energy storage power generation device according to a preferred embodiment of the present invention includes a generator 10, a driving mechanism 20 driving the generator 10, and an energy supply mechanism 30 providing energy for the driving mechanism 20;
The driving mechanism 20 comprises a starting motor 21 and an accelerating motor 22, and the starting motor 21 and the accelerating motor 22 are in transmission connection with the generator 10;
the energy supply mechanism 30 includes a first battery pack electrically connected with the starter motor 21 and a second battery pack electrically connected with the accelerator motor 22, a first output terminal of the generator 10 is electrically connected with the first battery pack and the second battery pack, and a second output terminal of the generator 10 is electrically connected with the load.
According to the energy storage power generation device, the first battery pack and the second battery pack are arranged, the power grid is used for charging the first battery pack and the second battery pack in the electricity consumption valley period, the first battery pack and the second battery pack are used for respectively supplying power to the starting motor 21 and the accelerating motor 22 in the electricity consumption peak period, the starting motor 21 is preferably a low-rotation-speed high-torque motor, the high-torque motor is used for driving the generator 10 to start, after the rotation speed of the generator 10 reaches a preset range, the accelerating motor 22 with high rotation speed is cut into the starting motor 21 to drive the generator 10 together to generate power, the rotation speed of the generator 10 is driven to the preset rotation speed in a short time, so that the generator 10 can directly output a voltage value in the preset range, the electric quantity generated by the motor is preferentially supplied to a load, and when the load electricity consumption is not much, the generator 10 simultaneously feeds back and charges the first battery pack and the second battery pack, so that energy can be fully utilized, and productivity waste is reduced. The power generation device stores energy by adopting the battery pack, so that the space required by energy storage can be reduced, the requirements on the field are lower, the universality is better, and the safety performance is higher.
Preferably, in order to improve safety, the first battery pack and the second battery pack are mounted in a battery box 31, and the battery box 31 is disposed at one side of the starter motor 21.
As shown in fig. 2, in an embodiment, the driving mechanism 20 further includes a speed stabilizing motor 23, the accelerating motor 22 is a double-headed motor, a first output shaft of the accelerating motor 22 is coaxially connected with an input shaft of the generator 10, a second output shaft of the accelerating motor 22 is coaxially connected with an output shaft of the speed stabilizing motor 23, the speed stabilizing motor 23 is electrically connected with a mains supply, the starting motor 21 is disposed at one side of the generator 10, and an output shaft of the starting motor 21 is connected with the input shaft of the generator 10 through a transmission member. When the rotation speed of the generator 10 reaches a certain range, the speed stabilizing motor 23 is cut into and started up the motor 21, the accelerating motor 22 to drive the generator 10 together to generate electricity, the rotation speed of the generator 10 can be stabilized within a certain range, and as the speed stabilizing motor 23 is powered by mains supply, the generator 10 can generate electricity stably for a long time, and as the first battery pack and the second battery pack respectively power the starting motor 21 and the accelerating motor 22, the power consumption required by the speed stabilizing motor 23 is saved compared with the power supply by the mains supply alone, the output shaft of the accelerating motor 22 and the output shaft of the speed stabilizing motor 23 are directly connected with the input shaft of the generator 10, the transmission efficiency can be improved, and the energy loss is reduced.
Further, an output shaft of the acceleration motor 22 is connected to an input shaft of the generator 10 via a connecting shaft 24, and an output shaft of the start motor 21 is connected to the connecting shaft 24 via a transmission member.
Alternatively, the starter motor 21 is an in-wheel motor.
Further, the transmission member is a belt 25 and a belt pulley 26, the belt pulley 26 is sleeved on the connecting shaft 24, and the output shaft of the starting motor 21 is connected with the belt pulley 26 through the belt 25. The starting motor 21 drives the connecting shaft 24 to rotate with a small diameter by using the output with a large diameter, so that larger torsion can be provided, and the starting motor 21 drives the generator 10 to start.
As shown in fig. 2, the energy storage power generation device of the present application further includes a weight wheel 40, wherein the weight wheel 40 is disposed between the generator 10 and the accelerating motor 22, and both ends of the weight wheel 40 are respectively connected with an input shaft of the generator 10 and an output shaft of the accelerating motor 22. The counterweight wheel 40 serves to buffer and store energy, which may make the generator 10 operate more smoothly.
In an embodiment, as shown in fig. 1, the energy storage power generation device of the present application further includes a distribution box 50 and a power transformation box 60, the distribution box 50 is electrically connected with the generator 10, the driving mechanism 20 and the energy supply mechanism 30, an input end of the power transformation box 60 is electrically connected with the generator 10, and an output end of the power transformation box 60 is electrically connected with the first battery pack, the second battery pack and the load. The power distribution box 50 is used for controlling the cooperative operation of the generator 10, the driving mechanism 20 and the energy supply mechanism 30, and the power transformation box 60 is used for adjusting the voltage directly output by the generator 10 to be within a required voltage range so as to facilitate the power connection of the load and the first battery pack and the second battery pack.
In order to facilitate movement or transportation, the energy storage generator 10 of the present application further includes a frame 70, and the generator 10, the driving mechanism 20, the energy supply mechanism 30, the distribution box 50 and the transformation box 60 are all mounted on the frame 70. The generator 10, the driving mechanism 20, the energy supply mechanism 30, the distribution box 50 and the transformation box 60 are all arranged on the frame 70, so that the whole power generation device can be formed into a whole, and the transfer and the transportation are convenient.
Optionally, the load is an electrical consumer or an energy storage cabinet. The load may be a direct electrical consumer or the power generated by the generator 10 may be stored using an energy storage cabinet through which power is supplied when needed.
The application also provides an energy storage power generation method for generating power by using the power generation device, which comprises the following steps:
before power generation, the first battery pack and the second battery pack are charged;
The first battery pack provides electric energy for the starting motor 21, the driving motor drives the generator 10 to start power generation, part of electric energy generated by the generator 10 is used for recharging the first battery pack and the second battery pack, and the other part of electric energy provides electric energy for a load;
when the direct output voltage of the generator 10 reaches the first preset voltage threshold, the second battery pack provides electric energy for the accelerating motor 22, and the accelerating motor 22 cuts into and starts the motor 21 to drive the generator 10 together to generate electricity.
The starting motor 21 and the accelerating motor 22 are connected into the driving generator 10 step by step, so that the generator 10 can be driven better, the generator 10 can output required voltage faster, the starting motor 21 and the accelerating motor 22 bear the power source of the generator 10 together, the loads of the starting motor 21 and the accelerating motor 22 can be reduced, the electric energy loss is reduced, and the energy utilization rate is improved.
In an embodiment, the method further comprises the steps of:
when the direct output voltage of the generator 10 reaches the second preset voltage threshold, the commercial power supplies electric energy to the speed stabilizing motor 23, and the speed stabilizing motor 23 cuts in and starts the motor 21 and the accelerating motor 22 to drive the generator 10 together to generate electricity, so that the direct output voltage of the generator 10 is stabilized at the third preset threshold.
The generator 10 is driven by the starting motor 21, the accelerating motor 22 and the steady motor 23 together, so that the generator 10 can continuously and stably run, the energy consumption of the steady motor 23 can be reduced, and the energy is saved.
For ease of understanding, the scheme of the present application will be described in detail by substituting specific parameters in a specific embodiment, but it should be noted that each parameter of the present application is not limited to the following specific values.
The first battery pack is six batteries with the power of 72V/100A, the second battery pack is six batteries with the power of 72V/12A, the starting motor 21 is a brushless direct current motor with the rated power of 1 kilowatt and 72 volts, the accelerating motor 22 is a brushless direct current motor with the rated power of 20 kilowatts and 96 volts, the speed stabilizing motor 23 is a three-phase alternating current generator 10 with the rated power of 50 kilowatts, and the generator 10 is a three-phase alternating current generator with the rated power of 3 pieces of 220 volts.
When generating electricity, the first battery pack and the second battery pack are fully charged by the power grid in the electricity consumption valley period;
Then the first battery pack provides electric energy for the starting motor 21 to drive the generator 10 to start generating electricity, a part of electric energy generated by the generator 10 is used for recharging the first battery pack and the second battery pack, and the other part of electric energy is used for providing electric energy for a load;
when the direct output voltage range of the generator 10 reaches 200 to 250 volts, the accelerating motor 22 is added to drive the generator 10 to generate power together with the starting motor 21;
when the direct output voltage range of the generator 10 reaches 330 to 360 volts, the speed stabilizing motor 23 is added to drive the generator 10 to generate power together with the starting motor 21 and the accelerating motor 22, so that the direct output voltage of the generator 10 is stabilized between 375 to 400 volts, and finally the output voltage of the generator 10 is stabilized at 380 volts through the power transformation box 60 to supply power for the battery pack and the load.
The energy storage power generation device has rich application scenes, such as the following scenes:
1. Micro-grid systems (e.g., photovoltaic, wind power, and energy storage) provide stable power for communities or factories, restaurants, etc.;
2. the data center is used as a backup power supply of the ups uninterruptible power supply, and the continuous operation of the server is ensured;
3. The peak regulation of the power grid is realized, the electric energy is stored in the electricity consumption low-peak period, and the electricity can be sold to the power grid in the electricity consumption peak period in cooperation with the electric power market policy;
4. the emergency power supply can rapidly deploy the energy storage generator 10 to restore power supply if a disaster occurs;
5. the small and medium-sized hydroelectric power station can provide power generation operation when the water level is low and the generated energy is insufficient.
Finally, it should be noted that the foregoing description is only a preferred embodiment of the present invention, and the present invention is not limited to the foregoing embodiments, but may be modified or substituted for some of the features described in the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202510671907.9A CN120377449A (en) | 2025-05-23 | 2025-05-23 | Energy storage power generation device and energy storage power generation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202510671907.9A CN120377449A (en) | 2025-05-23 | 2025-05-23 | Energy storage power generation device and energy storage power generation method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN120377449A true CN120377449A (en) | 2025-07-25 |
Family
ID=96441194
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202510671907.9A Pending CN120377449A (en) | 2025-05-23 | 2025-05-23 | Energy storage power generation device and energy storage power generation method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN120377449A (en) |
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2025
- 2025-05-23 CN CN202510671907.9A patent/CN120377449A/en active Pending
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