CN111884299A - Off-grid energy storage system and energy storage method based on main components of retired new energy automobile - Google Patents
Off-grid energy storage system and energy storage method based on main components of retired new energy automobile Download PDFInfo
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- CN111884299A CN111884299A CN202010812943.XA CN202010812943A CN111884299A CN 111884299 A CN111884299 A CN 111884299A CN 202010812943 A CN202010812943 A CN 202010812943A CN 111884299 A CN111884299 A CN 111884299A
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- 238000004146 energy storage Methods 0.000 title claims abstract description 44
- 238000000034 method Methods 0.000 title claims abstract description 8
- 238000010248 power generation Methods 0.000 claims abstract description 22
- 238000004891 communication Methods 0.000 claims description 7
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 6
- 230000001360 synchronised effect Effects 0.000 description 6
- 230000005611 electricity Effects 0.000 description 4
- 230000018109 developmental process Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 125000004122 cyclic group Chemical group 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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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
- H02J7/0068—Battery or charger load switching, e.g. concurrent charging and load supply
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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
- H02J7/0013—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
-
- 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
- H02J7/0063—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with circuits adapted for supplying loads from the battery
-
- 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
- H02J7/14—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from dynamo-electric generators driven at varying speed, e.g. on vehicle
- H02J7/1423—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from dynamo-electric generators driven at varying speed, e.g. on vehicle with multiple batteries
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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
- H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
- H02J7/35—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering with light sensitive cells
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/76—Power conversion electric or electronic aspects
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention discloses an off-grid energy storage system and an energy storage method based on main components of a retired new energy automobile, wherein the off-grid energy storage system comprises the main components of the retired new energy automobile, and the main components comprise: the device comprises a power battery pack, a motor drive controller and a charger, wherein the charger is electrically connected with the power battery pack, and the power battery pack is electrically connected with the motor drive controller; the intermittent energy source power generation assembly is electrically connected with a charger in the retired main component through an inverter; the transformer is electrically connected with the motor driving controller in the retired main component, and alternating current transformed by the transformer is supplied to an electric load. The generator set is formed by using the main components of the retired new energy automobile, the complete set of reutilization of the main components of the retired new energy automobile is realized, the cost of the generator set is greatly reduced, a new selection mode is provided for electroless areas and emergency power supply, and the service life of resources is prolonged.
Description
Technical Field
The invention belongs to the technical field of resource regeneration, and particularly relates to an off-grid energy storage system and an energy storage method based on main components of a retired new energy automobile.
Background
At present, the new energy automobile has rapid technical development, a great technical breakthrough is made in about three years, the actual service life of the new energy automobile is eliminated and scrapped after 15 kilometers of actual running, and main part systems are electric driving systems (mainly comprising a power battery, a motor driving controller, a permanent magnet synchronous motor and the like) and still have use values. Only the use of these components can be of value, otherwise it is still a "waste". Most of the traditional recycling modes are that parts are separately applied, and when the parts are applied, the functions of the retired motor drive controller are solidified and are not suitable for disassembly, so that the motor drive controller is difficult to recycle; the permanent magnet synchronous motor is specially manufactured for automobiles, can be used only by a matched controller, and is difficult to realize reutilization; only the technical route applied by the retired battery pack is simple and clear, and is a main part recycled in the current market, so that other retired parts in the retired driving system basically become industrial garbage except the power battery pack, cannot be recycled, cost is required for treatment, and burden is increased for enterprises and society.
Disclosure of Invention
The invention provides an off-grid energy storage system based on main components of a retired new energy automobile.
The invention is realized in such a way that an off-grid energy storage system based on the main components of the retired new energy automobile comprises:
the main parts of new energy automobile's retirement, the main parts includes: the device comprises a power battery pack, a motor drive controller and a charger, wherein the charger is electrically connected with the power battery pack, and the power battery pack is electrically connected with the motor drive controller;
the intermittent energy source power generation assembly is electrically connected with a charger in the retired main component through an inverter;
the transformer is electrically connected with the motor driving controller in the retired main component, and alternating current transformed by the transformer is supplied to an electric load.
Furthermore, the intermittent energy source power generation assembly is a wind power generation assembly or a solar power generation assembly.
Furthermore, the solar power generation assembly comprises a photovoltaic panel, and the photovoltaic panel is electrically connected with a charger in the retired main component through a photovoltaic inverter.
Further, the off-grid energy storage system further comprises:
the virtual accelerator is in communication connection with the motor drive controller in the retired main component, and the output frequency of the motor drive controller controlled by the virtual accelerator is the power grid frequency.
Further, the virtual throttle includes:
an I/O interface in the STM32 microprocessor and the STM32 microprocessor are respectively connected with a starting unit, a stopping unit and a frequency fine-tuning unit, wherein the starting unit is used for starting the off-grid energy storage system, the stopping unit is used for stopping the off-grid energy storage system, and the frequency fine-tuning unit is used for fine-tuning the output frequency of the virtual throttle.
The invention is realized in such a way that the energy storage method of the off-grid type energy storage system based on the main components of the retired new energy automobile is as follows:
the motor driving controller converts direct current electric energy in the power battery pack into alternating current electric energy, 260V alternating current is output at the frequency of a power grid, and the 260V alternating current converts voltage into 380V alternating current through a transformer to supply power to an electric load;
the intermittent energy source power generation assembly charges the retired power battery pack.
Further, the output frequency of the motor drive controller is controlled to be the power grid frequency through the virtual accelerator, or the control mode of the motor drive controller is set to be fixed frequency control, and the electric energy is output according to the power grid frequency.
The off-grid energy storage system based on the main components of the retired new energy automobile has the following beneficial technical effects:
1) the main components of the retired new energy automobile are utilized to form the generator set, the complete set of reutilization of the main components of the retired new energy automobile is realized, the cost of the generator set is greatly reduced, a new selection mode is provided for electroless areas and emergency power supply, the service life of resources is prolonged, and the concept of 'cyclic utilization and green development' advocated by the state is met;
2) converting the energy in the battery into voltage (380V) and frequency (50Hz) which meet the national electric appliance electricity utilization standard so as to drive the related electric appliances;
3) the off-grid energy storage system simplifies application, avoids the limitation of complex grid-connected conditions of a power system, reduces application cost, and is positioned in a non-electricity area in the application direction.
Drawings
Fig. 1 is a schematic structural diagram of an electric drive system of an existing new energy vehicle according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of an off-grid energy storage system based on main components of a retired new energy vehicle according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of an off-grid energy storage system based on main components of a retired new energy vehicle according to a second embodiment of the present invention.
Detailed Description
The following detailed description of the embodiments of the present invention will be given in order to provide those skilled in the art with a more complete, accurate and thorough understanding of the inventive concept and technical solutions of the present invention.
Fig. 1 is a schematic structural diagram of an electric drive system of an existing new energy vehicle according to an embodiment of the present invention, and for convenience of description, only parts related to the present invention are shown.
This new energy automobile's electric drive system includes:
the device comprises a power battery, a motor drive controller, a permanent magnet synchronous motor and a charger, wherein the power battery is in communication connection with the motor drive controller, the power battery is electrically connected with the motor drive controller, the motor drive controller is electrically connected with the permanent magnet synchronous motor, and the permanent magnet synchronous motor is used for driving automobile wheels;
the charging machine is electrically connected with the power battery pack, and the charging pile charges the power battery pack through the charging machine.
The charging pile charges the battery pack through the charger, and the motor drive controller inverts the direct current electric energy of the battery pack into alternating current electric energy to drive the synchronous permanent magnet motor to drive the wheels to rotate, so that the purpose of driving the vehicle to run is achieved.
Fig. 2 is a schematic structural diagram of an off-grid energy storage system based on main components of a retired new energy vehicle according to an embodiment of the present invention, and for convenience of description, only the parts related to the embodiment of the present invention are shown.
This off-grid energy storage system includes:
the main retirement components of the retired new energy automobile comprise: the motor driving device comprises a power battery pack, a motor driving controller and a charger, wherein the charger is electrically connected with the power battery pack, the power battery pack is electrically connected with the motor driving controller, and the power battery pack is in communication connection with the motor driving controller;
the intermittent energy source power generation assembly is electrically connected with a charger in the retired main component through an inverter;
the transformer is electrically connected with the motor driving controller in the retired main component, and alternating current transformed by the transformer is supplied to an electric load.
In the embodiment of the invention, the intermittent energy source power generation assembly is a wind power generation assembly or a solar power generation assembly, the solar power generation assembly comprises a photovoltaic panel, and the photovoltaic panel is electrically connected with a charger in the retired main component through a photovoltaic inverter.
In the embodiment of the invention, the retired power battery pack comprises a plurality of single battery cells and a battery management system BMS which is in communication connection with the single battery cells, wherein the battery management system BMS is in communication connection with the motor drive controller CAN.
The intermittent energy source power generation assembly converts intermittent energy sources (such as wind energy and solar energy) into electric energy, direct current generated by the intermittent energy source power generation assembly is converted into 220V alternating current through an inverter, the alternating current is charged to a power battery pack through a charger in a decommissioned main component, a motor drive controller is modified into fixed frequency control, namely, the electric energy is output at the power grid frequency (50Hz), the direct current electric energy in the power battery pack is converted into alternating current electric energy by the motor drive controller, 260V alternating current is output at the power grid frequency, the voltage of the 260V alternating current is converted into 380V alternating current through a transformer, and power is supplied to an electric load.
Fig. 3 is a schematic structural diagram of an off-grid energy storage system based on main components of a retired new energy vehicle according to a second embodiment of the present invention, and for convenience of description, only the parts related to the second embodiment of the present invention are shown.
On the basis of the off-grid energy storage system based on the main components of the retired new energy automobile provided in the first embodiment, the off-grid energy storage system further comprises:
virtual throttle, virtual throttle is connected with motor drive controller communication, and virtual throttle control motor drive controller's output frequency is the grid frequency, and wherein virtual throttle includes:
the system comprises an STM32 microprocessor, wherein an I/O interface in the STM32 microprocessor is respectively connected with a starting unit, a stopping unit and a frequency fine-tuning unit, wherein the starting unit is used for starting the off-grid energy storage system, the stopping unit is used for stopping the off-grid energy storage system, and the frequency fine-tuning unit is used for finely tuning the output frequency of the virtual throttle;
in an embodiment of the present invention, the frequency fine tuning unit includes: the device comprises a frequency fine adjustment + subunit and a frequency fine adjustment-subunit, wherein the frequency fine adjustment + subunit is used for increasing the output frequency of the off-grid energy storage system, and the frequency fine adjustment-subunit is used for reducing the output frequency of the off-grid energy storage system.
The STM32 microprocessor is used as a controller of a virtual throttle, and the STM32 is a 32-bit microprocessor integrated circuit, and the core of the integrated circuit is an Arm Cortex architecture. In particular, the embedded CAN interface is very suitable for being directly connected with the motor driving controller without an additional interface.
The intermittent energy source power generation assembly converts intermittent energy sources (such as wind energy and solar energy) into electric energy, direct current generated by the intermittent energy source power generation assembly is converted into 220V alternating current through the inverter, the alternating current is charged to the power battery pack through a charger in the decommissioning main component, the direct current electric energy in the power battery pack is converted into alternating current electric energy by the motor drive controller, the virtual accelerator controls the motor drive controller to output 260V alternating current at the frequency of a power grid, the 260V alternating current converts voltage into 380V alternating current through the transformer, and power is supplied to an electric load.
The off-grid energy storage system based on the main components of the retired new energy automobile has the following beneficial technical effects:
1) the main components of the retired new energy automobile are utilized to form the generator set, the complete set of reutilization of the main components of the retired new energy automobile is realized, the cost of the generator set is greatly reduced, a new selection mode is provided for electroless areas and emergency power supply, the service life of resources is prolonged, and the concept of 'cyclic utilization and green development' advocated by the state is met;
2) converting the energy in the battery into voltage (380V) and frequency (50Hz) which meet the national electric appliance electricity utilization standard so as to drive the related electric appliances;
3) the off-grid energy storage system simplifies application, avoids the limitation of complex grid-connected conditions of a power system, reduces application cost, and is positioned in a non-electricity area in the application direction.
The invention has been described above with reference to the accompanying drawings, it is obvious that the invention is not limited to the specific implementation in the above-described manner, and it is within the scope of the invention to apply the inventive concept and solution to other applications without substantial modification.
Claims (7)
1. An off-grid energy storage system based on main components of a retired new energy automobile, characterized in that the off-grid energy storage system comprises:
the main parts of new energy automobile's retirement, the main parts includes: the device comprises a power battery pack, a motor drive controller and a charger, wherein the charger is electrically connected with the power battery pack, and the power battery pack is electrically connected with the motor drive controller;
the intermittent energy source power generation assembly is electrically connected with a charger in the retired main component through an inverter;
the transformer is electrically connected with the motor driving controller in the retired main component, and alternating current transformed by the transformer is supplied to an electric load.
2. The off-grid energy storage system based on the main components of the retired new energy automobile according to claim 1, wherein the intermittent energy power generation assembly is a wind power generation assembly or a solar power generation assembly.
3. The off-grid energy storage system based on the main components of the retired new energy automobile according to claim 1 or 2, wherein the solar power generation assembly comprises a photovoltaic panel, and the photovoltaic panel is electrically connected with a charger in the retired main components through a photovoltaic inverter.
4. The off-grid energy storage system based on the main components of the retired new energy automobile according to claim 1 or 2, wherein the off-grid energy storage system further comprises:
the virtual accelerator is in communication connection with the motor drive controller in the retired main component, and the output frequency of the motor drive controller controlled by the virtual accelerator is the power grid frequency.
5. The decommissioned new energy vehicle main component-based off-grid energy storage system according to claim 4, wherein the virtual throttle comprises:
an I/O interface in the STM32 microprocessor and the STM32 microprocessor are respectively connected with a starting unit, a stopping unit and a frequency fine-tuning unit, wherein the starting unit is used for starting the off-grid energy storage system, the stopping unit is used for stopping the off-grid energy storage system, and the frequency fine-tuning unit is used for fine-tuning the output frequency of the virtual throttle.
6. The energy storage method of the off-grid energy storage system based on the main components of the retired new energy automobile according to any one of claims 1 to 5, wherein the method specifically comprises the following steps:
the motor driving controller converts direct current electric energy in the power battery pack into alternating current electric energy, 260V alternating current is output at the frequency of a power grid, and the 260V alternating current converts voltage into 380V alternating current through a transformer to supply power to an electric load;
the intermittent energy source power generation assembly charges the retired power battery pack.
7. The energy storage method of the off-grid energy storage system based on the main components of the retired new energy automobile according to claim 6, wherein the output frequency of the motor drive controller is controlled to be the grid frequency through the virtual throttle, or the control mode of the motor drive controller is set to be fixed frequency control, and the output of the electric energy is performed at the grid frequency.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010812943.XA CN111884299A (en) | 2020-08-13 | 2020-08-13 | Off-grid energy storage system and energy storage method based on main components of retired new energy automobile |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010812943.XA CN111884299A (en) | 2020-08-13 | 2020-08-13 | Off-grid energy storage system and energy storage method based on main components of retired new energy automobile |
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| CN111884299A true CN111884299A (en) | 2020-11-03 |
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| CN202010812943.XA Pending CN111884299A (en) | 2020-08-13 | 2020-08-13 | Off-grid energy storage system and energy storage method based on main components of retired new energy automobile |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118674326A (en) * | 2024-08-22 | 2024-09-20 | 河北京津冀再制造产业技术研究有限公司 | Remanufacturing and echelon utilization integrated system for new energy automobile retired driving motor |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105071434A (en) * | 2015-08-04 | 2015-11-18 | 上海煦达新能源科技有限公司 | On/off-grid storage energy-saving system for charging electric vehicle with solar battery |
| CN212849916U (en) * | 2020-08-13 | 2021-03-30 | 安徽瑞赛克再生资源技术股份有限公司 | Off-grid energy storage system based on main components of retired new energy automobile |
-
2020
- 2020-08-13 CN CN202010812943.XA patent/CN111884299A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105071434A (en) * | 2015-08-04 | 2015-11-18 | 上海煦达新能源科技有限公司 | On/off-grid storage energy-saving system for charging electric vehicle with solar battery |
| CN212849916U (en) * | 2020-08-13 | 2021-03-30 | 安徽瑞赛克再生资源技术股份有限公司 | Off-grid energy storage system based on main components of retired new energy automobile |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118674326A (en) * | 2024-08-22 | 2024-09-20 | 河北京津冀再制造产业技术研究有限公司 | Remanufacturing and echelon utilization integrated system for new energy automobile retired driving motor |
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Effective date of registration: 20211115 Address after: 241000 rooms A206 and 207, complex building, 38 Yinhu North Road, Wuhu District, China (Anhui) pilot Free Trade Zone, Wuhu City, Anhui Province Applicant after: WUHU WANJIANG INTELLECTUAL PROPERTY OPERATION CENTER Co.,Ltd. Address before: 241000 combined power house of generator transformer, No. 8, Changchun Road, Wuhu Economic and Technological Development Zone, Anhui Province Applicant before: ANHUI RUISAIKE RENEWABLE RESOURCE TECHNOLOGY Co.,Ltd. |
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Effective date of registration: 20230425 Address after: 241200 Fanchang Economic Development Zone, Wuhu City, Anhui Province Applicant after: Anhui Jiaqi Energy Technology Co.,Ltd. Address before: 241000 rooms A206 and 207, complex building, 38 Yinhu North Road, Wuhu District, China (Anhui) pilot Free Trade Zone, Wuhu City, Anhui Province Applicant before: WUHU WANJIANG INTELLECTUAL PROPERTY OPERATION CENTER Co.,Ltd. |
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