CN109428324A - Highway chain type micro-grid system - Google Patents
Highway chain type micro-grid system Download PDFInfo
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- CN109428324A CN109428324A CN201710787232.XA CN201710787232A CN109428324A CN 109428324 A CN109428324 A CN 109428324A CN 201710787232 A CN201710787232 A CN 201710787232A CN 109428324 A CN109428324 A CN 109428324A
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- 238000010248 power generation Methods 0.000 claims description 13
- 230000003993 interaction Effects 0.000 claims description 10
- 230000001681 protective effect Effects 0.000 claims description 10
- 238000012544 monitoring process Methods 0.000 claims description 6
- 238000005286 illumination Methods 0.000 abstract description 4
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- 230000008901 benefit Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
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- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 2
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- 229910052744 lithium Inorganic materials 0.000 description 2
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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
- H02J1/00—Circuit arrangements for DC mains or DC distribution networks
- H02J1/10—Parallel operation of DC sources
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Abstract
The invention belongs to energy use technology fields, disclose a kind of highway chain type micro-grid system, including at least two micro-capacitance sensor units, the micro-capacitance sensor unit includes DC bus, microgrid energy management module, DC generation module, DC energy storage module, direct-current charging post and electrical equipment；The energy management unit is for realizing energy management and system protection；The direct-current charging post is used to carry out direct current quick charge to electric vehicle；The electrical equipment includes the traffic electricity consumption facility such as direct-current LED street lamp, billboard and camera；The micro-capacitance sensor unit is mutually adjacent on highway, is connected between the DC bus of the adjacent micro-capacitance sensor unit by controllable attachment device, make micro-capacitance sensor unit can independent operating again constitute chain type micro-grid system interconnection mutually Ji.The present invention uses distributed new, realizes that electric energy self-supporting is self-sustaining；Micro-capacitance sensor cell distribution is uniform, effectively solution night illumination, electric car charging continuation of the journey and various means of transportation electrical problems.
Description
Technical field
The invention belongs to energy use technology field more particularly to a kind of highway chain type micro-grid systems.
Background technique
With social and economic development, new requirement is proposed to power supply by the public road network of representative of highway.
Firstly, the main power load of highway currently is street lamp, it is limited by electricity charge budget limit, or because the remote construction in region is difficult
Etc. factors, the highway of most of mileage be not equipped with street lamp, there are huge security risks.Secondly, breaking out formula growth
Electric car needs under steam quickly and large capacity charge requirement, construction and O&M to traditional power grid propose huge challenge.
In addition, dosage is big on a highway for the installations and facilities such as traffic monitoring equipment, communication apparatus, billboard, distribution is wide, existing power grid
Construction scheme is also difficult to meet this demand.Dependence provides independent device of solar generating for oneself and will cause the wasting of resources, safeguards and be stranded
The problems such as difficult.
Therefore, traditional technical solution exists there are existing power grid and is difficult to meet highway power demand, and causes to provide
Source waste and problem difficult in maintenance.
Summary of the invention
The purpose of the present invention is to provide a kind of highway chain type micro-grid systems, it is intended to solve in conventional solution
Existing existing power grid is difficult to meet highway power demand, and results in waste of resources and problem difficult in maintenance.
A kind of highway chain type micro-grid system, including at least two micro-capacitance sensor units；Each micro-capacitance sensor unit
Including DC bus, and the microgrid energy management module, the DC generation module, DC energy storage that are connected on the DC bus
Module, direct-current charging post and electrical equipment；The microgrid energy management module is used to control the power generation of the micro-capacitance sensor unit, storage
Electricity, distribution and electricity consumption link；The DC generation module produces electricl energy and the electric energy is sent into the DC bus, for giving
The microgrid energy management module, the DC energy storage module, the direct-current charging post and the power supply for electrical equipment；It is described straight
Stream energy-storage module is used to store the electric energy that the DC generation module generates；It is provided on the direct-current charging post and matches with electric vehicle
The charging interface of set, for carrying out DC charging to the electric vehicle；The micro-capacitance sensor unit is mutually adjacent to the highway
On, it is connected between the DC bus of the adjacent micro-capacitance sensor unit by controllable attachment device.
It further, further include protective module, the protective module is for detecting the micro-capacitance sensor unit with the presence or absence of short
Road and/or drain conditions, when detecting the short circuit and/or drain conditions, the protective module is described controllable by controlling
Attachment device cuts off the connection between the adjacent micro-capacitance sensor unit.
Further, the microgrid energy management module further includes communication module, and the communication module is described for establishing
Wireless communication between direct-current charging post and mobile terminal and/or cloud.
Further, man-machine interaction panel is provided on the direct-current charging post, the man-machine interaction panel is for charging
Time setting, charging rate setting and charging payment.
Further, the electrical equipment includes one of direct-current LED street lamp, electronic bill-board and traffic monitoring equipment
Or it is a variety of.
Further, the micro-capacitance sensor unit further includes sensor module, the sensor module for detect sunshine and
Vehicle flowrate situation, and adjust according to the sunshine and vehicle flowrate situation the brightness of the direct-current LED street lamp.
Further, the DC generation module includes photovoltaic power generation equipment and/or wind power plant.
Further, the DC energy storage module includes energy-storage battery.
Further, the controllable attachment device includes solid-state direct-current relay, mechanical DC relay or hybrid
DC relay.
Further, the micro-capacitance sensor unit further includes alternating current-direct current interworking unit, and the alternating current-direct current interworking unit connects institute
DC bus and AC network are stated, for the AC load power supply for being connected to the AC network.
The present invention makes full use of the generation of electricity by new energy device and energy storage dress of the clean and safes such as solar energy, wind energy and lithium battery
It sets, in conjunction with the new energy load such as direct-current LED street lamp, electric car, constitutes " highway chain type micro-capacitance sensor " system, phase of the present invention
Beneficial effect for the prior art is:
1. realizing that power self-support is self-sustaining, without being bound by the limitation of electricity charge budget, without being laid with remote high pressure transmission and distribution line
Road and transformer.
2. micro-capacitance sensor cell distribution is uniform, effectively solution night illumination, electric car charging continuation of the journey and various traffic is set
Apply electrical problem.
3. micro-capacitance sensor unit can independent operating again constitute chain type micro-grid system, realize between different micro-capacitance sensor units
Interconnection mutually help, not will cause the waste of resource, and when fault occurs, not will cause entire chain type micro-grid system
Collapse, power supply reliability is high, saves construction and maintenance cost.
4. using new energy direct-current generating device and energy storage device, no-ningerse transformer, improves efficiency of energy utilization and electricity consumption can
By property.
5. the safe zero-emission of clean energy.
Detailed description of the invention
Fig. 1 is a kind of structure chart of highway chain type micro-grid system of the embodiment of the present invention.
Fig. 2 is the structure chart of micro-capacitance sensor of embodiment of the present invention unit.
Connection type and protective module schematic diagram of the Fig. 3 between micro-capacitance sensor of embodiment of the present invention unit.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
Referring to Fig. 1, a kind of highway chain type micro-grid system in presently preferred embodiments of the present invention, including at least two
Micro-capacitance sensor unit 100 (or receive net), 100 phase of micro-capacitance sensor unit is adjacent on highway, adjacent micro-capacitance sensor unit 100
It is connected between DC bus 10 by controllable attachment device 20.
Each micro-capacitance sensor unit 100 includes DC bus 10, and the microgrid energy management being connected on DC bus 10
Module 17, DC generation module 11, DC energy storage module 12, direct-current charging post 13 and electrical equipment 14.
The electric energy that DC generation module 11 generates is sent into DC bus 10, for microgrid energy management module 17, direct current
Energy-storage module 12, direct-current charging post 13 and electrical equipment 14 are powered；DC energy storage module 12 is for storing DC generation module 11
The electric energy of generation；Charging interface matched with electric vehicle is provided on direct-current charging post 13, it is fast for carrying out direct current to electric vehicle
Speed charging, microgrid energy management module 17 include communication module (not shown), and communication module is for establishing in micro-capacitance sensor unit 100
Communication between communication, micro-capacitance sensor unit 100 and micro-capacitance sensor unit 100 and mobile terminal and/or cloud between each module
Between communication；The setting of electrical equipment 14 is at highway scene.
Microgrid energy management module 17 passes through record, the operation power data of statistics and analysis system, the micro- electricity of manage and dispatch
The power generation of net unit 100, storage, distribution and the microgrid energy management module with electricity condition, in two adjacent micro-capacitance sensor units 100
17 can be in communication with each other, and constitute the chain type energy management system of micro-grid of non-stop layer, realize the energy of the chain type microgrid of non-stop layer
Buret reason, realizes the interaction capability of cloud big data function and mobile terminal, so that the operation of system reaches optimum state, it is real
Now preferable economic benefit.
The present invention integrates power generation, storage, distribution, electricity consumption, using DC bus active distribution, realize intelligent power,
On-demand electricity consumption and collaboration electricity consumption.
Referring to Fig. 2, micro-capacitance sensor unit 100 includes DC bus 10, DC generation mould in presently preferred embodiments of the present invention
The grid-connected module 15 of block 11, DC energy storage module 12, direct-current charging post 13, electrical equipment 14, direct current, man-machine interaction panel 16 and friendship
Direct current interworking unit 18.Wherein, DC generation module 11 includes photovoltaic power generation equipment 111 and/or wind power plant 112；People
Machine interactive panel 16 is set on direct-current charging post 13；Electrical equipment 14 includes direct-current LED street lamp 141 and/or electronic bill-board
142。
DC energy storage module 12, direct-current charging post 13 and electrical equipment 14 are connected to DC bus 10；DC generation module
11 are connected to DC bus 10 by the grid-connected module 15 of direct current；Alternating current-direct current interworking unit 18 be separately connected DC bus 10 with exchange
Power grid；AC load is connected on AC network.
There are when AC network around highway, the electric energy and DC energy storage that DC generation module 11 can be generated
The electric energy stored in module 12 is transported to the AC network around highway by alternating current-direct current interworking unit 18, for exchange
Load supplying, wherein the electric energy stored in the electric energy and DC energy storage module 12 that DC generation module 11 generates can pass through friendship
Direct current interworking unit 18 can also give the AC load being set on highway to the residential block power supply near highway, or
The AC load in the places such as Expressway Service and rest area is powered.
Photovoltaic power generation equipment 111 includes solar panels (not shown) and photoelectric conversion device (not shown).Photovoltaic power generation is set
Standby 111 be the system for directly converting the solar into electric energy using the photoelectric effect of semiconductor material, mainly utilizes solar panels
Power generation.Wind power plant 112 is the electricity generation system for converting wind energy into electric energy.Photovoltaic power generation equipment 111 and wind-power electricity generation are set
Standby 112 according to highway field condition reasonable installation.The present invention makes full use of the new energy of the clean and safes such as solar energy and wind energy
Source is as DC generation module 11, the direct current issued using renewable energy, realizes energy-self supply.
DC generation module 11 is connected on DC bus, and the electric energy that DC generation module 11 generates is used by DC bus
It powers in each module and each equipment, needs not move through inverter, few using electric device, circuit is simple, and high reliablity improves
The working efficiency of circuit.
The Novel cleans energy storage device such as including energy-storage battery of DC energy storage module 12, it is preferable that DC energy storage module 12 is wrapped
Include energy-storage lithium battery.When generation deficiency, the electric energy that DC generation module 11 generates preferentially gives direct-current LED street lamp 141 to power,
Secondary to be used for direct-current charging post 13 and other electrical equipments, when the power generation amount is large, extra electric energy is stored in DC energy storage module
In 12, when DC energy storage module 12 is fully charged, the electric energy in DC energy storage module 12 can pass through alternating current-direct current interworking unit
18 are conveyed to AC network, for powering to AC load.DC energy storage module 12 is used as power backup, in direct-current generating device
When 11 generated energy is insufficient or 11 failure of direct-current generating device, realization is switched fast uninterrupted power supply, it is ensured that the height of power supply can
By property.
Direct-current charging post 13 is pure DC charging, carries out direct current quick charge to electric vehicle, charge efficiency is high, charging voltage
Stablize, and the charging time is short.
Electrical equipment 14 further includes but is not limited to the high speed such as traffic monitoring equipment (not shown) and communication apparatus (not shown)
Installations and facilities on highway, include in traffic monitoring equipment electronic direction board (not shown), vehicle detection module (not shown) and
Electronic camera (not shown) etc..Vehicle detection module is communicated by communication module with mobile terminal or cloud, vehicle detection mould
Block is for prompting road conditions and detection speed.The electric energy that electrical equipment 14 can use DC generation module 11 to export is powered,
Also the electric energy that the storage of DC energy storage module 12 can be used is powered.
Micro-capacitance sensor unit 100 further includes sensor module (not shown), and sensor module is for detecting sunshine and vehicle flowrate
Situation, and according to the brightness of sunshine and vehicle flowrate situation adjusting direct-current LED street lamp.
Sensor module can be set on direct-current LED street lamp 141, can also be arranged according to situation in other positions, described
Sensor module adjusts direct-current LED for detecting sunshine situation and vehicle flowrate situation, and according to sunshine situation and vehicle flowrate situation
The brightness of street lamp 141, when sunshine abundance, direct-current LED street lamp 141 does not work, when intensity of sunshine is lower than certain value, direct current
LED street lamp 141 is started to work, and changes the brightness value of direct-current LED street lamp 141 according to intensity of sunshine, and direct-current LED street lamp 141 is opened
After beginning work, when vehicle flowrate increases, the brightness of direct-current LED street lamp 141 can also increase with the increase of vehicle flowrate, realize intelligence
It can light modulation, intelligent lighting.
Direct-current LED street lamp 141 is efficient LED illuminating lamp, covers entire highway comprehensively, and is not limited to charge station and road
Mouthful, direct-current LED street lamp 141 is supplied by the direct current that DC generation module 11 or DC energy storage module 12 are conveyed to DC bus 10
Electricity.Direct-current LED street lamp 141 is powered using direct current, since the value of supplying DC voltage can change, can be led to
The mode of voltage value is overregulated to realize the adjusting to 141 brightness of direct-current LED street lamp, the value and direct-current LED street lamp of supply voltage
141 brightness value is at certain functional relation, it is preferable that the value of supply voltage is directly proportional to the brightness value of direct-current LED street lamp 141
Example relationship, the brightness of direct-current LED street lamp 141 can automatically control, not need artificially to switch.Using direct current to direct-current LED road
The power supply of lamp 141 has circuit simple relative to using AC power supply, the advantages of high reliablity, when needing to direct-current LED street lamp
When 141 brightness is adjusted, additional control route, high reliablity, if using AC power supply, due to power supply electricity are not needed
Pressure is fluctuation, then can not realize the brightness regulation to direct-current LED street lamp 141 in the way of adjusting voltage value.
Communication module be direct current power carrier wave high speed communications products, direct current power carrier wave high speed communication product, in conjunction with
The wireless communication modes such as zigbee and wifi realize that global monitoring, efficiently management, cooperative scheduling, active distribution realize micro-capacitance sensor
The intelligence and instrumentation of system.
Since the present invention uses direct current supply, direct current power carrier wave high speed communications products, communication can be used
Rate is fast, when using Alternating Current Power Supply, since AC noise is larger, is then not suitable for high speed communication environment.
Communication module realizes the information exchange between charging network and user, realizes that user remotely monitors and manages；And it can
Establish the wireless communication between direct-current charging post 13 and mobile terminal and/or cloud, the operation of real-time query direct-current charging post 13
State finds idle direct-current charging post 13 for user and realizes precise positioning to direct-current charging post 13；APP is provided for user to fill
The Self-Services such as electric reservation, mobile phone identity authentication, network payment or bankcard consumption；New energy vehicle charging voltage can be monitored, filled
The overall processes information such as electric current, charging time, charge capacity, charging times and charging expense；And it can remotely stop charging, it is ensured that
Charge operation security；Energy Efficiency Analysis and energy management are carried out by big data method, has prediction and Optimized Operation ability.
There is man-machine interaction panel 16 information to show, button operation and communication function, user pass through man-machine interaction panel 16
Realize that charging time setting, charging rate setting and charging payment, the setting in charging time and charging rate setting can pass through
Key in man-machine interaction panel 16 selects to complete, and the charging means of payment includes paying in cash and e-payment, user can also
Charging time setting, charging rate setting and charging payment, people are carried out to scan the two dimensional code shown in man-machine interaction panel 16
Machine interactive panel 16 can also show the advertising business of undertaking.
Referring to Fig. 3, a micro-capacitance sensor unit 100 is set at a certain distance on highway, and preferably two kilometers, phase
It can be connected or disconnected by controllable attachment device 20 between adjacent two micro-capacitance sensor units 100, controllable attachment device 20 is connected by it
Microgrid energy management module 17 in the adjacent micro-capacitance sensor unit 100 of two connect manages and controls jointly, controllable attachment device
20 include solid-state direct-current relay, mechanical DC relay and/or hybrid DC relay, realizes each micro-capacitance sensor unit
100 independent operations and networking synthetic operation.
Since the power demands amount of different micro-capacitance sensor units 100 has difference, some 100 power demands amounts of micro-capacitance sensor unit
Greatly, some 100 power demands amounts of micro-capacitance sensor unit are small, and networking synthetic operation, generated energy are realized between different micro-capacitance sensor units 100
It is micro- to generated energy is small and/or power demands amount is big that big and/or small power demands amount micro-capacitance sensor unit 100 can convey electric energy
Power grid unit 100 realizes that electric energy makes full use of in micro-capacitance sensor unit 100, not will cause the waste of resource, realizes that intelligence supplies
Electricity.When some micro-capacitance sensor unit 100 breaks down, user can cut off controllable attachment device 20, voluntarily control the micro-capacitance sensor
Unit 100 is detached from from entire chain type micro-grid system, and massive blackout accident, high safety and reliability will not occur.The present invention
Using the network structure and cooperative scheduling strategy of highway chain type micro-capacitance sensor, independent operating and the dual mould of networking operation are realized
Formula takes into account flexibility and complementarity, system reliability with higher.
Controllable attachment device 20 is connected with protective module 30, and protective module 30 is for detecting every set micro-capacitance sensor unit 100
No to there are short circuit and/or drain conditions, when detecting the short circuit and/or drain conditions, protective module 30 can by control
Attachment device 20 is controlled to cut off the connection between the micro-grid system.
The present invention makes full use of generation of electricity by new energy and the energy storage device of clean and safe, in conjunction with efficient LED illumination, electric car
Equal new energy load, construction integrate the highway chain type micro-grid system of power generation storage distribution electricity consumption, realize that the energy is clear
Clean safe zero-emission, power self-support is self-sustaining, without being bound by the limitation of electricity charge budget；Micro-capacitance sensor cell distribution is uniform, effectively solves
Night illumination, electric car charging continuation of the journey and various means of transportation electrical problems, lifting road road transport carry efficiency and safety coefficient；
With bipolar bus structure, there is higher electrical stability and flexibility；Micro-capacitance sensor unit can independent operating again constitute
Chain type micro-grid system realizes that the interconnection between different micro-capacitance sensor units is mutually helped, and not will cause the waste of resource, and electric when occurring
When the failure of road, the collapse of entire chain type micro-grid system not will cause, save construction and maintenance cost.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (10)
1. a kind of highway chain type micro-grid system, which is characterized in that including at least two micro-capacitance sensor units；
Each micro-capacitance sensor unit includes DC bus, and the microgrid energy management mould being connected on the DC bus
Block, DC generation module, DC energy storage module, direct-current charging post and electrical equipment；
The microgrid energy management module is used to control power generation, storage, distribution and the electricity consumption link of the micro-capacitance sensor unit；
The DC generation module produces electricl energy and the electric energy is sent into the DC bus, for the microgrid energy pipe
Manage module, the DC energy storage module, the direct-current charging post and the power supply for electrical equipment；
The DC energy storage module is used to store the electric energy that the DC generation module generates；
It is provided with charging interface matched with electric vehicle on the direct-current charging post, is filled for carrying out direct current to the electric vehicle
Electricity；
The micro-capacitance sensor unit is mutually adjacent on the highway, the DC bus of the adjacent micro-capacitance sensor unit it
Between connected by controllable attachment device.
2. highway chain type micro-grid system as described in claim 1, which is characterized in that it further include protective module, it is described
Protective module for detect the micro-capacitance sensor unit with the presence or absence of short circuit and/or drain conditions, when detect it is described short circuit and/or
When drain conditions, the protective module is cut off by controlling the controllable attachment device between the adjacent micro-capacitance sensor unit
Connection.
3. such as the described in any item highway chain type micro-grid systems of claim 1, which is characterized in that the microgrid energy pipe
Managing module further includes communication module, the communication module for establish the direct-current charging post and mobile terminal and/or cloud it
Between wireless communication.
4. such as the described in any item highway chain type micro-grid systems of claim 1, which is characterized in that the direct-current charging post
On be provided with man-machine interaction panel, the man-machine interaction panel is for charging time setting, charging rate setting and charging payment.
5. highway chain type micro-grid system as described in claim 1, which is characterized in that the electrical equipment includes direct current
One of LED street lamp, electronic bill-board and traffic monitoring equipment are a variety of.
6. highway chain type micro-grid system as claimed in claim 5, which is characterized in that the micro-capacitance sensor unit further includes
Sensor module, the sensor module are used to detect sunshine and vehicle flowrate situation, and according to the sunshine and vehicle flowrate situation
Adjust the brightness of the direct-current LED street lamp.
7. highway chain type micro-grid system as described in claim 1, which is characterized in that the DC generation module includes
Photovoltaic power generation equipment and/or wind power plant.
8. highway chain type micro-grid system as described in claim 1, which is characterized in that the DC energy storage module includes
Energy-storage battery.
9. highway chain type micro-grid system as described in claim 1, which is characterized in that the controllable attachment device includes
Solid-state direct-current relay, mechanical DC relay or hybrid DC relay.
10. highway chain type micro-grid system as described in claim 1, which is characterized in that the micro-capacitance sensor unit also wraps
Alternating current-direct current interworking unit is included, the alternating current-direct current interworking unit connects the DC bus and AC network, for being connected to institute
State the AC load power supply of AC network.
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| CN201710787232.XA CN109428324A (en) | 2017-09-04 | 2017-09-04 | Highway chain type micro-grid system |
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| CN112248868A (en) * | 2020-08-27 | 2021-01-22 | 富晟沃博克斯新能源汽车充电技术(苏州)有限公司 | A new type of charging pile power distribution system |
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| CN110829407A (en) * | 2019-12-13 | 2020-02-21 | 北京新城绿源科技发展有限公司 | Distributed multi-bus direct-current micro-grid system |
| CN111907364A (en) * | 2020-08-21 | 2020-11-10 | 深圳市瑞能时代科技有限公司 | Energy storage charging system applied to expressway |
| CN112248868A (en) * | 2020-08-27 | 2021-01-22 | 富晟沃博克斯新能源汽车充电技术(苏州)有限公司 | A new type of charging pile power distribution system |
| CN112248868B (en) * | 2020-08-27 | 2022-05-20 | 富晟沃博克斯新能源汽车充电技术(苏州)有限公司 | A new type of charging pile power distribution system |
| CN112564081A (en) * | 2020-12-08 | 2021-03-26 | 深圳供电局有限公司 | Direct-current integrated micro-grid system and control method |
| CN114221434A (en) * | 2021-11-03 | 2022-03-22 | 山东正晨科技股份有限公司 | A kind of expressway intelligent energy management and control system and method |
| CN114221434B (en) * | 2021-11-03 | 2024-12-03 | 山东正晨科技股份有限公司 | A highway smart energy management and control system and method |
| CN118677078A (en) * | 2024-06-11 | 2024-09-20 | 杭州杰通工程技术有限公司 | Highway tunnel illumination power consumption energy memory |
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Application publication date: 20190305 |