CN112242718A - Coordination control device and coordination control method of intelligent micro-grid - Google Patents
Coordination control device and coordination control method of intelligent micro-grid Download PDFInfo
- Publication number
- CN112242718A CN112242718A CN202011120290.5A CN202011120290A CN112242718A CN 112242718 A CN112242718 A CN 112242718A CN 202011120290 A CN202011120290 A CN 202011120290A CN 112242718 A CN112242718 A CN 112242718A
- Authority
- CN
- China
- Prior art keywords
- switch
- unit
- controllable
- power
- control device
- 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
Images
Classifications
-
- 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
- H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
- H02J3/46—Controlling of the sharing of output between the generators, converters, or transformers
- H02J3/466—Scheduling the operation of the generators, e.g. connecting or disconnecting generators to meet a given demand
-
- 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
- H02J3/12—Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load
- H02J3/14—Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load by switching loads on to, or off from, network, e.g. progressively balanced loading
-
- 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
-
- 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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
- Y02B70/3225—Demand response systems, e.g. load shedding, peak shaving
-
- 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
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
- Y04S20/222—Demand response systems, e.g. load shedding, peak shaving
Abstract
The invention belongs to the technical field of micro-grid power utilization coordination control, and particularly relates to a coordination control device of an intelligent micro-grid and a coordination control method thereof. The power supply unit, the power consumption unit and the circuit of the micro-grid are controlled by the coordination control device of the intelligent micro-grid, so that the working state of the micro-grid is coordinated and stable.
Description
Technical Field
The invention belongs to the technical field of micro-grid power utilization coordination control, and particularly relates to a coordination control device and a coordination control method for an intelligent micro-grid.
Background
In the field of electronic technology, a coordination control device of an intelligent microgrid intelligently adjusts and controls the operation and power results of the microgrid, so that the structure of the microgrid is more reasonable. The intelligent microgrid has the advantages of low operation cost, small pollution and the like, so that the intelligent microgrid is widely applied to actual life. Because the intelligent micro-grid often needs to be switched between a grid-connected operation mode and an off-grid operation mode, the control strategy and the response speed of the intelligent micro-grid are particularly important. However, in the prior art, most of the coordination control devices of the smart microgrid are in a centralized control mode, and the processing process and the processing method are not flexible enough, and cannot make specific adaptive adjustment on a specific microgrid, so that it is difficult to perform wake-up adjustment on the microgrid according to the operation of the microgrid due to the need to be set in advance. Therefore, the coordination control device of the smart micro-grid needs a long information processing time, and thus the coordination control device of the smart micro-grid cannot perform faster and more efficient coordination control on the smart micro-grid.
Disclosure of Invention
One of the objectives of the present invention is to provide a coordination control apparatus for a smart microgrid and a coordination control method thereof, so as to solve the problems in the background art.
In order to achieve the purpose, the invention provides the following technical scheme:
the utility model provides a little grid's of intelligence coordinated control device, includes coordinated control device, be equipped with on-off control unit, mutual editor's unit and power consumption evaluation unit in the coordinated control device, on-off control unit includes line control unit, load input control unit and power supply control switch, mutual editor's unit passes through data bus with the power consumption evaluation unit and is connected, controllable line control switch is connected to the line control unit, controllable line control switch establishes on little grid's power supply line thread and boundary line, load input control unit links to each other with controllable load control switch, power supply control switch control connection controllable power switch, controllable power switch establishes at battery output and generator output.
Preferably, the interactive editing unit is connected with the switch control unit through a data bus, a memory is arranged in the interactive editing unit, and the information of the switch equipment of the switch control unit is transmitted to the memory of the interactive editing unit through the data bus.
Preferably, the output end of the controllable line control switch is connected with a local power supply unit and a power consumption load, wherein the power consumption load comprises a sensitive load and a general load.
Preferably, the local power supply unit comprises a generator and a storage battery, the microgrid lines are grouped into a line 1, a line 2 and a line 3, the line 3 is connected with a general load, and the sensitive load, the generator and the storage battery are connected with the line 1 and the line 2.
Preferably, the controllable load control switch 8 is arranged between the input end of the load and a power supply line, and the controllable load control switch is connected with the interactive editing unit through a data bus.
Preferably, a controllable power control circuit is arranged in the controllable power switch, and a calculation formula of the working frequency of the controllable power control circuit is as follows:
wherein, F is the circuit operating frequency, and the unit of F is KHz, and RI is the ground resistance of the RI pin of the chip, and RI unit is K omega.
Preferably, a maximum power loss calculation formula of a chip RIN pin connection resistor in the controllable power switch is as follows:
wherein, P is the maximum power loss of the pin connecting resistor of the chip RIN, RIN is the resistance value of the pin connecting resistor of the chip RIN, Vmax is the maximum input voltage, and Vdd is the normal working voltage of the chip.
Preferably, the power consumption evaluation unit knows the battery charge amount by adopting a method of estimating the battery SOC through SOC definition, and is connected with the controllable load control switch.
Another object of the present invention is to provide a method for coordinating and controlling a smart microgrid, so as to solve the problems in the background art.
In order to achieve the purpose, the invention provides the following technical scheme:
a coordination control method of an intelligent micro-grid comprises a coordination control device, wherein the working steps of an interactive editing unit in the coordination control device are as follows:
step S1: the interactive editing unit stores the equipment information of the controllable line control switch, the controllable load control switch and the controllable power switch on an internal memory;
step S2: the interactive editing unit receives the line power utilization condition and the power supply charge quantity condition of the power utilization evaluation unit 4;
step S3: the interactive editing unit establishes an interactive relation with a switch in the line according to the power consumption condition and the power supply charge quantity condition of the line;
step S4: and when the power utilization evaluation unit sends the circuit power utilization information to the interactive editing unit, the interactive editing unit sends control information to the switch equipment in the circuit according to the established interactive relationship.
Preferably, the step of operating the coordination control device is:
step S10: an interactive editing unit in the coordination control device establishes an interactive flow;
step S20: detecting the power utilization condition of the microgrid by a power utilization evaluation unit in the coordination control device;
step S30: and the coordination control device controls the working states of the controllable line control switch, the controllable load control switch and the controllable power switch in the microgrid according to the interactive flow.
Compared with the prior art, the invention has the beneficial effects that: when the micro-grid coordination control system is used, a micro-grid coordination device is used for carrying out coordination control on a power grid, the working states of a battery pack and a load in the micro-grid are monitored, and when the working states of the micro-grid change, an interaction unit established by an interaction editing module is used for regulating and controlling a control switch in the micro-grid so as to achieve coordination control on the micro-grid.
Drawings
FIG. 1 is a schematic view of the apparatus of the present invention;
FIG. 2 is a schematic diagram of a microgrid used in the present invention;
FIG. 3 is a power control circuit diagram of the present invention:
FIG. 4 is a schematic diagram of an interactive process establishment process of the present invention:
FIG. 5 is a schematic diagram of the present invention for controlling a switching device according to an interaction process.
In the figure: the system comprises a coordination control device 1, an interactive editing unit 2, an interactive editing unit 3, an electricity utilization evaluation unit 4, a load input control unit 5, a power supply power control switch 6, a line control unit 7, a controllable load control switch 8, a controllable power switch 9 and a controllable line control switch 10.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-5, the present invention provides a technical solution:
a coordination control device of an intelligent micro-grid and a coordination control method thereof comprise a coordination control device 1, a switch control unit 2, an interactive editing unit 3 and an electricity utilization evaluation unit 4 are arranged in the coordination control device 1, the switch control unit 2 comprises a line control unit 7, a load input control unit 5 and a power supply power control unit 6, the interactive editing unit 3 is connected with the electricity utilization evaluation unit 4 through a data bus, the line control unit 7 is connected with a controllable line control switch 10, the controllable line control switch 10 is arranged on a power supply line main line and a side line of the micro-grid, the load input control unit 5 is connected with a controllable load control switch 8, the power supply power control unit 6 is connected with a controllable power switch 9 in a control way, the controllable power switch 9 is arranged at an output end of a storage battery and an output end of a generator, the interactive editing unit 3 is connected with the switch control unit 2 through a data bus, the interactive editing unit 3 is internally provided with a memory, and the switch equipment information of the switch control unit 2 is transmitted to the memory of the interactive editing unit 3 through a data bus. The output end of the controllable line control switch 10 is connected with a local power supply unit and a power consumption load, the power consumption load comprises a sensitive load and a general load, the local power supply unit comprises a generator and a storage battery, the microgrid lines are divided into a line 1, a line 2 and a line 3, the line 3 is connected with the general load, the sensitive load, the generator and the storage battery are connected with the line 1 and the line 2, the controllable load control switch 8 is arranged between the input end of the load and a power supply line, and the controllable load control switch 8 is connected with the interactive editing unit 3 through a data bus.
The controllable load control switch 8, the controllable power switch 9 and the controllable line control switch 10 are intelligent switches for controlling power supply of a circuit in a microgrid, the controllable load control switch 8, the controllable power switch 9 and the controllable line control switch 10 can make corresponding state changes according to control signals after receiving the control signals, and power input adjustment and switch state change of the circuit can be carried out on the circuit. In the microgrid circuit, unimportant general loads are arranged on the line 3, and the general loads can also be arranged on the edge lines of the line 1 and the line 2, so that the management of the general loads is convenient, the importance of the general loads in the life and production process is lower, the input of the general loads can be properly reduced or the general loads can be closed to save the electric quantity of a power grid, the important sensitive loads are arranged on the line 1 and the line 2, and the sensitive loads are matched with the controllable load control switch 8 to accurately control the sensitive loads.
Wherein, controllable power control circuit is equipped with in controllable power switch 9, and controllable power control circuit's operating frequency computational formula is:
wherein, F is the circuit operating frequency, and the unit of F is KHz, and RI is the ground resistance of the RI pin of the chip, and RI unit is K omega.
The maximum power loss calculation formula of the chip RIN pin connection resistor in the controllable power switch 9 is as follows:
wherein, P is the maximum power loss of the pin connecting resistor of the chip RIN, RIN is the resistance value of the pin connecting resistor of the chip RIN, Vmax is the maximum input voltage, and Vdd is the normal working voltage of the chip.
The power consumption evaluation unit 4 adopts a method of estimating the SOC of the battery by SOC definition to know the charge amount of the battery, the power consumption evaluation unit 4 is connected with the controllable load control switch 6, and the calculation formula of the method of estimating the SOC by SOC definition is as follows:
wherein Z (t) represents the SOC estimated value of the power battery at the time t, and Z (t)0) Represents the initial value of the SOC of the power battery, etaiRepresents the charge-discharge coulomb efficiency of the power battery, il(tau) is the charging and discharging electric quantity of the power battery at the time of tau, CmaxRepresenting the maximum available capacity of the battery under the current conditions. The state of the battery pack is known by estimating and calculating the current charge amount of the battery, when the battery charge amount is higher than eighty percent, the charge input of a large power grid is controlled to be cut off, the power supply of the battery pack of the micro-power grid is adopted, when the battery charge amount is lower than twenty percent, the large power grid starts to input charges, the large power grid also supplies power to the load of the micro-power grid, the power utilization evaluation unit 4 sends the battery pack state, and the interactive flow established by the interactive editing unit 3 regulates and controls the power utilization of the micro-power grid.
The working steps of the interactive editing unit 3 in the coordination control device 1 are as follows:
step S1: the interactive editing unit 3 stores the device information of the controllable line control switch 10, the controllable load control switch 8 and the controllable power switch 9 on an internal memory;
step S2: the interactive editing unit 3 receives the line power utilization condition and the power supply charge quantity condition of the power utilization evaluation unit 4;
step S3: the interactive editing unit 3 establishes an interactive relation with a switch in the line according to the electricity utilization condition and the power supply charge quantity condition of the line;
step S4: and when the power utilization evaluation unit 4 sends the circuit power utilization information to the interactive editing unit 3, the interactive editing unit 3 sends control information to the switch equipment in the circuit according to the established interactive relationship.
The coordination control device 1 operates by the steps of:
step S10: an interactive editing unit 3 in the coordination control device 1 establishes an interactive flow;
step S20: the power utilization evaluation unit 4 in the coordination control device 1 detects the power utilization condition of the microgrid;
step S30: the coordination control device 1 controls the working states of the controllable line control switch 10, the controllable load control switch 8 and the controllable power switch 9 in the microgrid according to the interactive process.
And the interaction editing unit 3 is used for customizing an interaction flow to properly regulate and control the power grid, so that the power grid is more coordinated and energy-saving in the operation process.
The specific working process of the invention is as follows: when the power grid intelligent coordination management system is used, the interactive editing unit 3 stores equipment information of the controllable line control switch 10, the controllable load control switch 8 and the controllable power switch 9 on an internal memory, the interactive editing unit 3 establishes an interactive relation with switches in a line according to the line power utilization condition and the power supply charge quantity condition, and after the interactive relation exists, when the power utilization evaluation unit 4 in the power grid monitors that the power supply state and the power supply state of the power grid change, the power grid intelligent regulation and control equipment of the power grid switch are controlled according to the set interactive relation, so that the power grid achieves a reasonable and coordinated operation state, the safe operation of the power grid can be protected, and meanwhile, the power utilization of the power grid is managed in an intelligent.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. A coordinated control device of a smart micro-grid comprises a coordinated control device (1), and is characterized in that: a switch control unit (2), an interactive editing unit (3) and an electricity utilization evaluation unit (4) are arranged in the coordination control device (1), the switch control unit (2) comprises a line control unit (7), a load input control unit (5) and a power supply control unit (6), the interactive editing unit (3) is connected with the electricity utilization evaluation unit (4) through a data bus, the line control unit (7) is connected with a controllable line control switch (10), the controllable circuit control switch (10) is arranged on the main line and the side line of the power supply circuit of the micro-grid, the load input control unit (5) is connected with a controllable load control switch (8), the power supply power control unit (6) is connected with a controllable power switch (9) in a control way, the controllable power switch (9) is arranged at the output end of the storage battery and the output end of the generator.
2. The coordinated control device of the smart micro-grid according to claim 1, wherein: the interactive editing unit (3) is connected with the switch control unit (2) through a data bus, a memory is arranged in the interactive editing unit (3), and the information of the switch equipment of the switch control unit (2) is transmitted to the memory of the interactive editing unit (3) through the data bus.
3. The coordinated control device of the smart micro-grid according to claim 1, wherein: the output end of the controllable circuit control switch (10) is connected with a local power supply unit and power consumption loads, and the power consumption loads comprise sensitive loads and general loads.
4. The coordinated control device of the smart micro-grid according to claim 3, wherein: the local power supply unit comprises a generator and a storage battery pack, the microgrid circuits are divided into a circuit 1, a circuit 2 and a circuit 3, the circuit 3 is connected with a common load, and the sensitive load, the generator and the storage battery pack are connected with the circuit 1 and the circuit 2.
5. The coordinated control device of the smart micro-grid according to claim 1, wherein: the controllable load control switch (8) is arranged between the input end of the load and a power supply line, and the controllable load control switch (8) is connected with the interactive editing unit (3) through a data bus.
6. The coordinated control device of the smart micro-grid according to claim 1, wherein: a controllable power control circuit is arranged in the controllable power switch (9), and the working frequency calculation formula of the controllable power control circuit is as follows:
wherein, F is the circuit operating frequency, and the unit of F is KHz, and RI is the ground resistance of the RI pin of the chip, and RI unit is K omega.
7. The coordinated control device of the smart micro-grid according to claim 5, wherein: the maximum power loss calculation formula of the chip RIN pin connecting resistor in the controllable power switch (9) is as follows:
wherein, P is the maximum power loss of the pin connecting resistor of the chip RIN, RIN is the resistance value of the pin connecting resistor of the chip RIN, Vmax is the maximum input voltage, and Vdd is the normal working voltage of the chip.
8. The coordinated control device of the smart micro-grid according to claim 1, wherein: the power utilization evaluation unit (4) adopts a method of estimating the SOC of the battery by SOC definition to know the charge amount of the battery, and the power utilization evaluation unit (4) is connected with the controllable load control switch (8).
9. A coordination control method of an intelligent micro-grid is characterized by comprising the following steps: the coordination control device (1) is provided, the coordination control device (1) is the coordination control device (1) of any one of claims 1-8, and the working steps of the interactive editing unit (3) in the coordination control device (1) are as follows:
step S1: the interactive editing unit (3) stores the equipment information of the controllable line control switch (10), the controllable load control switch (8) and the controllable power switch (9) on an internal memory;
step S2: the interactive editing unit (3) receives the line power utilization condition and the power supply charge quantity condition of the power utilization evaluation unit (4);
step S3: the interactive editing unit (3) establishes an interactive relation with a switch in the circuit according to the power consumption condition and the power supply charge quantity condition of the circuit;
step S4: and when the electricity utilization evaluation unit (4) sends the circuit electricity utilization information to the interactive editing unit (3), the interactive editing unit (3) sends control information to the switch equipment in the circuit according to the established interactive relationship.
10. The coordinated control method of the smart microgrid of claim 9, wherein: the coordination control device (1) works according to the following steps:
step S10: an interactive editing unit (3) in the coordination control device (1) establishes an interactive flow;
step S20: detecting the power consumption condition of the microgrid by a power consumption evaluation unit (4) in the coordination control device (1);
step S30: the coordination control device (1) controls the working states of the controllable line control switch (10), the controllable load control switch (8) and the controllable power switch (9) in the microgrid according to the interactive process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011120290.5A CN112242718A (en) | 2020-10-19 | 2020-10-19 | Coordination control device and coordination control method of intelligent micro-grid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011120290.5A CN112242718A (en) | 2020-10-19 | 2020-10-19 | Coordination control device and coordination control method of intelligent micro-grid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112242718A true CN112242718A (en) | 2021-01-19 |
Family
ID=74168905
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011120290.5A Pending CN112242718A (en) | 2020-10-19 | 2020-10-19 | Coordination control device and coordination control method of intelligent micro-grid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112242718A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103647351A (en) * | 2013-12-18 | 2014-03-19 | 江苏省电力设计院 | Multi-agent and heterogeneous communication technology based micro-grid intelligent measuring and controlling terminal and method |
| CN104283308A (en) * | 2013-07-10 | 2015-01-14 | 北京中电建投微电网科技有限公司 | Smart central strategy control system for micro-grid |
| CN109768571A (en) * | 2018-12-30 | 2019-05-17 | 国网河南省电力公司滑县供电公司 | A kind of grid-connected micro grid control system and method |
| CN209913508U (en) * | 2019-07-08 | 2020-01-07 | 湖北追日电气股份有限公司 | Micro-grid layered coordination control device |
-
2020
- 2020-10-19 CN CN202011120290.5A patent/CN112242718A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104283308A (en) * | 2013-07-10 | 2015-01-14 | 北京中电建投微电网科技有限公司 | Smart central strategy control system for micro-grid |
| CN103647351A (en) * | 2013-12-18 | 2014-03-19 | 江苏省电力设计院 | Multi-agent and heterogeneous communication technology based micro-grid intelligent measuring and controlling terminal and method |
| CN109768571A (en) * | 2018-12-30 | 2019-05-17 | 国网河南省电力公司滑县供电公司 | A kind of grid-connected micro grid control system and method |
| CN209913508U (en) * | 2019-07-08 | 2020-01-07 | 湖北追日电气股份有限公司 | Micro-grid layered coordination control device |
Non-Patent Citations (1)
| Title |
|---|
| 李俊亚 等: "《新能源汽车技术》", 31 January 2018, 哈尔滨工业大学出版社 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107394829B (en) | Direct current power supply system coordination control system and method based on non-interconnection communication | |
| CN109301914B (en) | Photovoltaic micro-grid energy storage control method with SOC optimization | |
| CN106786490A (en) | Distributed DC microgrid energy control method | |
| CN109510319B (en) | Energy storage battery system composed of super capacitor, lithium battery and lead-acid battery | |
| CN105553391A (en) | Photovoltaic energy storage battery power generation system and control method | |
| CN109494793B (en) | Lithium-capacitor-based photovoltaic graded energy storage system with primary frequency modulation function | |
| CN210183080U (en) | Lead-acid storage battery charging system based on intelligent control technology | |
| CN113377150B (en) | MPPT self-adaptive switching control method and system for light storage system | |
| CN105429128A (en) | DC micro grid bus voltage control strategy based on hybrid energy storage | |
| CN113507162A (en) | Automatic capacity checking device and capacity checking method for direct current power supply system of transformer substation | |
| CN114977275A (en) | Intelligent energy storage power converter | |
| CN202513587U (en) | Grid-connected inverter power supply and countercurrent prevention system | |
| CN114421586A (en) | Data center power supply system, power supply control method and device and data center | |
| CN109193902A (en) | A kind of vehicle electric power supply control system | |
| CN210430931U (en) | Energy storage air conditioning system | |
| CN204858718U (en) | Hierarchical supply control device of microgrid load | |
| CN112242718A (en) | Coordination control device and coordination control method of intelligent micro-grid | |
| Chai et al. | Coordinated power control for islanded DC microgrids based on bus-signaling and fuzzy logic control | |
| CN220086995U (en) | Photovoltaic off-grid power generation system | |
| CN217545605U (en) | Complementary power generation and supply system of energy storage unit and hydrogen fuel cell | |
| CN216489877U (en) | Data center power supply system and data center | |
| CN212162838U (en) | Battery equalization management circuit | |
| CN115189384B (en) | V2G-based micro-grid energy storage charge and discharge management method | |
| CN219372385U (en) | Intelligent control system of distributed photovoltaic power station | |
| CN113595112B (en) | Composite load side regulation and control converter for reducing energy storage capacity requirement of power grid |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210119 |