CN112186787A - Micro-grid and energy storage coordination controller - Google Patents
Micro-grid and energy storage coordination controller Download PDFInfo
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- CN112186787A CN112186787A CN202011137372.0A CN202011137372A CN112186787A CN 112186787 A CN112186787 A CN 112186787A CN 202011137372 A CN202011137372 A CN 202011137372A CN 112186787 A CN112186787 A CN 112186787A
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- 238000004146 energy storage Methods 0.000 title claims abstract description 59
- 238000005070 sampling Methods 0.000 claims abstract description 20
- 230000003993 interaction Effects 0.000 claims abstract description 17
- 238000004891 communication Methods 0.000 claims description 7
- 238000010586 diagram Methods 0.000 description 6
- 230000009471 action Effects 0.000 description 4
- 230000010354 integration Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/28—Arrangements for balancing of the load in a network by storage of energy
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/26—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured
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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
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00001—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by the display of information or by user interaction, e.g. supervisory control and data acquisition systems [SCADA] or graphical user interfaces [GUI]
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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
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00006—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
- H02J13/00016—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using a wired telecommunication network or a data transmission bus
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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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02B90/20—Smart grids as enabling technology in buildings sector
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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
- 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
- Y04S20/12—Energy storage units, uninterruptible power supply [UPS] systems or standby or emergency generators, e.g. in the last power distribution stages
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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
- 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
- Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
- Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
- Y04S40/124—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using wired telecommunication networks or data transmission busses
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Human Computer Interaction (AREA)
- Computer Networks & Wireless Communication (AREA)
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The invention relates to a microgrid and an energy storage coordination controller. The microgrid and energy storage coordination controller comprises a bus board, a plurality of slots and a plurality of energy storage units, wherein the bus board is provided with a plurality of slots; the man-machine interface mainboard is connected with the bus board; the PPC management mainboard is arranged on the bus board and realizes data interaction with the human-computer interface mainboard; the protection control mainboard is arranged on the bus board and realizes data interaction with the PPC management mainboard; the alternating current sampling plug-in is arranged on the bus board through the slot, and the alternating current sampling plug-in and the PPC management mainboard realize data interaction; the plug-in and plug-out are arranged on the bus board through the slots, and data interaction between the plug-in and plug-out and the protection control mainboard is achieved. The microgrid and energy storage coordination controller provided by the invention can realize a differential protection function, meet the control precision and improve the utilization rate of energy storage.
Description
Technical Field
The invention relates to the technical field of power energy storage, in particular to a microgrid and an energy storage coordination controller.
Background
A micro-grid coordination control protection device is used in a micro-grid system, provides coordination management, control protection and communication management functions for the wind-solar energy storage network of new energy, and is field-level core hub equipment of the micro-grid system.
The differential protection function is generally realized by a relay protection device. The relay protection device is an important component of a power system, and plays an important role in ensuring the safe operation of the system. The protection function of the conventional microgrid coordinated controller is generally configured as three-phase current protection, such as instantaneous current quick-break protection (overcurrent first-stage protection), time-limited current quick-break protection (overcurrent second-stage protection) and time-limited overcurrent protection (overcurrent third-stage protection), while the energy storage coordinated controller does not have a differential protection function. In a traditional microgrid and energy storage project, control and protection functions are respectively realized by a microgrid energy storage controller and a relay protection device, so that a voltage loop and a current loop are relatively complex, and some loop faults are inevitably generated.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a microgrid and an energy storage coordination controller, which have a differential protection function and can improve the utilization rate of energy storage.
Specifically, the invention provides a microgrid and an energy storage coordination controller, which comprises
A bus board providing a plurality of slots;
the man-machine interface mainboard is connected with the bus board;
the PPC management mainboard is arranged on the bus board and realizes data interaction with the human-computer interface mainboard;
the protection control mainboard is arranged on the bus board and realizes data interaction with the PPC management mainboard;
the alternating current sampling plug-in is arranged on the bus board through the slot, and the alternating current sampling plug-in and the PPC management mainboard realize data interaction;
the access plug-in and the access plug-in are arranged on the bus board through the slots and realize data interaction with the protection control mainboard;
the alternating current sampling plug-in is used for collecting analog signals of an external circuit, the switch-in plug-in is used for collecting switch state signals of the external circuit, and the protection control main board sends instructions to the external circuit through the switch-out plug-in according to the analog signals and the switch state signals so as to switch on and off the switch of the external circuit.
According to an embodiment of the invention, the analog signal comprises an alternating current input signal and/or a direct current input signal of the external circuit.
According to one embodiment of the invention, the analog signal comprises analog quantity data of a current transformer and/or a voltage transformer of the external circuit.
According to an embodiment of the invention, the microgrid energy storage coordination controller further comprises a power supply plug-in, the power supply plug-in is arranged on the bus board through the slot, and the power supply plug-in supplies power to the microgrid and the energy storage coordination controller.
According to one embodiment of the invention, the power supply card is provided with an alarm device, which gives an alarm to the outside immediately after the power failure occurs.
According to one embodiment of the invention, the model of the man-machine interface mainboard is LPC2138, the model of the PPC management mainboard is MPC8308, and the model of the protection control mainboard is TMS320F 28335.
According to an embodiment of the invention, the human-computer interface mainboard, the PPC management mainboard and the protection control mainboard all have a self-checking function, the PPC management mainboard monitors operation conditions of the human-computer interface mainboard and the protection control mainboard, and the human-computer interface mainboard monitors operation conditions of the protection control mainboard.
According to one embodiment of the invention, the bus board and the man-machine interface mainboard are connected through a high-speed communication line.
According to an embodiment of the present invention, the PPC management motherboard, the ac sampling plug-in, the add-in plug-in, and the add-out plug-in are respectively connected to the protection control motherboard through signal lines.
According to the microgrid and energy storage coordination controller provided by the invention, a 3-processor architecture is adopted to realize a differential protection function, the control precision is met, and the utilization rate of energy storage can be improved.
It is to be understood that both the foregoing general description and the following detailed description of the present invention are exemplary and explanatory and are intended to provide further explanation of the invention as claimed.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principle of the invention. In the drawings:
fig. 1 shows a schematic structural diagram of a microgrid and an energy storage coordination controller according to an embodiment of the present invention.
Fig. 2 shows an electrical connection diagram of an energy storage system.
Fig. 3 shows a differential line selection and jump logic diagram of the microgrid and the energy storage coordination controller.
Wherein the figures include the following reference numerals:
microgrid and energy storage coordination controller 100 bus board 101
Human-computer interface mainboard 102PPC management mainboard 103
OpenIn plug 106 and OpenEx plug 107
Spare slot 109 for power plug-in 108
2047、2048
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It should be apparent that the described embodiments are only some of the embodiments of the present application, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the application, its application, or uses. 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 application.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
The relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present application unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
In the description of the present application, it is to be understood that the orientation or positional relationship indicated by the directional terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc., are generally based on the orientation or positional relationship shown in the drawings, and are used for convenience of description and simplicity of description only, and in the case of not making a reverse description, these directional terms do not indicate and imply that the device or element being referred to must have a particular orientation or be constructed and operated in a particular orientation, and therefore, should not be considered as limiting the scope of the present application; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.
Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and the terms have no special meanings unless otherwise stated, and therefore, the scope of protection of the present application is not to be construed as being limited. Further, although the terms used in the present application are selected from publicly known and used terms, some of the terms mentioned in the specification of the present application may be selected by the applicant at his or her discretion, the detailed meanings of which are described in relevant parts of the description herein. Further, it is required that the present application is understood not only by the actual terms used but also by the meaning of each term lying within.
Fig. 1 shows a schematic structural diagram of a microgrid and an energy storage coordination controller according to an embodiment of the present invention. A micro-grid and energy storage coordination controller 100 mainly comprises a bus board 101, a man-machine interface mainboard 102, a PPC management mainboard 103, a protection control mainboard 104, an alternating current sampling plug-in unit 105, an input plug-in unit 106 and an output plug-in unit 107.
The bus board 101 provides a plurality of slots. The human machine interface main board 102 is connected with the bus board 101.
The PPC management mainboard 103 is arranged on the bus board 101, and the PPC management mainboard 103 and the human-computer interface mainboard 102 realize data interaction;
the protection control mainboard 104 is arranged on the bus board 101, and the protection control mainboard 104 and the PPC management mainboard 103 realize data interaction.
The alternating current sampling plug-in 105 is arranged on the bus board 101 through a slot, and the alternating current sampling plug-in 105 and the PPC management mainboard 103 achieve data interaction.
The plug-in 106 and the plug-out 107 are arranged on the bus board 101 through slots, and the plug-in 106 and the plug-out 107 realize data interaction with the protection control mainboard 104;
the ac sampling plug-in 105 is used to collect analog signals of the external circuit, the open plug-in 106 is used to collect switching state signals of the external circuit, and the protection control motherboard 104 sends instructions to the external circuit through the open plug-in 107 according to the analog signals and the switching state signals to open and close the switch of the external circuit.
The microgrid and energy storage coordinated controller 100 has the protection and control functions at the same time, the measurement precision requirement of control can be met, the protection requirement can also be met, and the open circuit of the current transformer 201 and the short circuit of the voltage transformer 202 can be effectively prevented through the microgrid and energy storage coordinated controller.
The microgrid and energy storage coordination controller 100 realizes the integration of multiple devices. Fig. 2 shows an electrical connection diagram of an energy storage system. As shown in the figure, the circuit 200 includes a plurality of current transformers 201, voltage transformers 202, energy storage converters 203, circuit breakers 2041, 2042, 2043, 2044, 2045, 2046, 2047, 2048, which are all objects to be protected by the energy storage system. After the control and protection functions are combined, the microgrid and energy storage coordination controller 100 can protect a plurality of devices. By the device, transformer protection and circuit breaker protection do not need to be arranged respectively. All the current transformers 201 and the voltage transformers 202 are connected to the microgrid and energy storage coordination controller 100, and corresponding devices are operated according to the overcurrent protection of each current transformer 201 or the overvoltage protection of each voltage transformer 202.
The microgrid and energy storage coordination controller 100 provided by the invention has the functions of differential line selection and jump selection. The differential can be selectively selected by different loop outputs. The differential motion can realize the bus protection and transformer protection tripping problems in the microgrid and the energy storage system by selecting the current transformers 201 corresponding to different circuit breakers. As shown in fig. 2, the circuit 200 has the circuit breakers 2041, 2042, 2043, 2044, 2045, 2046, 2047 and 2048 connected to the add-in 106, the add-in 106 collects the switch status signals of the circuit breakers and sends the signals to the protection control motherboard 104, the ac sampling plug 105 collects the analog signals of the current transformer 201 and the voltage transformer 202 and sends the signals to the protection control motherboard 104, and the protection control motherboard 104 performs logic operation on the received analog signals and switch status signals and sends switch commands to the circuit breakers 2041, 2042, 2043, 2044, 2045, 2046, 2047 and 2048 through the add-out 107. For example, in fig. 2, when the left bus bar is differentially operated, the protection control main board 104 controls the breakers 2401, 2402, 2405 to be opened by the opening plug 107. When the transformer operates differentially, the protection control main board 104 controls the breakers 2405 and 2407 to be turned off through the opening plug 107, so as to realize the differential protection of the circuit 200.
Fig. 3 shows a differential line selection and jump logic diagram of the microgrid and energy storage coordination controller 100. The microgrid and energy storage coordination controller 100 is configured as 9-path alternating current input, differential current Id and braking current Ir can be calculated through the acquired currents in the four sides of IH, IQ, IM and IL, and differential quick-break protection action, proportional differential protection action, second harmonic braking action and current transformer saturation locking action can be realized through corresponding protection logic. The differential protection function and the locking condition can realize independent switching and appoint a plurality of tripping outlets.
Preferably, the analog signal collected by the ac sampling plug-in 105 includes an ac input signal and/or a dc input signal of an external circuit. Preferably, the analog signal includes analog data of a current transformer and/or a voltage transformer of the external circuit.
Preferably, referring to fig. 1, the microgrid and energy storage coordination controller 100 further comprises a power plug-in 108. The power plug-in 108 is arranged on the bus board 101 through a slot, and the power plug-in 108 supplies power to the microgrid and the energy storage coordination controller 100. Preferably, the power plug 108 has an alarm device to alarm immediately upon power down. Specifically, the power plug-in 108 provides various voltages for the operation of the internal circuit of the microgrid and energy storage coordination controller 100 and a common 24V voltage of an access board, and also has an electricity loss alarm and a locking outlet, and can output a 5V voltage state indication through configured LEDs, and after the power supply is cut off, the energy storage can support the controller to alarm the superior system within 2 seconds through communication equipment.
Preferably, a plurality of spare slots 109 are reserved on the bus board 101 to facilitate the expansion of the functions of the microgrid and energy storage coordination controller 100.
Preferably, the model of the human-machine interface main board 102 is LPC2138, which is responsible for human interaction processing of the controller. The model of the PPC management mainboard 103 is MPC8308, which is responsible for receiving the collected data, performing electric quantity operation and logic judgment on the data, and instructing to open the transmission of the plug-in 107. And meanwhile, the system also has the functions of state lamp indication, event and fault recording state detection and the like. The protection control mainboard 104 is TMS320F28335 in model, and adopts a Vxworks operating system to be responsible for overall management, data service, communication management and the like of the controller.
Preferably, the human-machine interface motherboard 102, the PPC management motherboard 103, and the protection control motherboard 104 all have self-test functions. The PPC management motherboard 103 monitors the operation conditions of the human-computer interface motherboard 102 and the protection control motherboard 104, and the human-computer interface motherboard 102 monitors the operation conditions of the protection control motherboard 104. This ensures that when any one of the three fails permanently, the other will give an alarm message.
Preferably, the ac sampling plug 105 belongs to a strong electrical circuit, and may have 16 analog inputs. The current loop adopts a voltage type current transformer, the electronic sampling circuit 200 and the electromagnetic type voltage transformer are arranged in the voltage loop in a reserved mode, and the two voltage acquisition modes are compatible due to different welding modes.
Preferably, the input plug 106 is configured with 25 input channels for input of the input amount. The outlet insert 107 may have 16 open channels that may be used as both a control outlet and a signal outlet. The operator can flexibly configure the specific purposes of the devices through device menus or communication modes, and definable functions comprise tripping and closing of the circuit breaker, equipment or function warning and the like.
Preferably, the bus board 101 is connected to the human interface motherboard 102 via a high-speed communication line.
Preferably, the PPC management board 103, the ac sampling plug-in 105, the plug-in 106, and the plug-out 107 are respectively connected to the protection control board 104 through signal lines.
The microgrid and energy storage coordination controller provided by the invention integrates the control function and the protection function into a whole, and the device has the following advantages:
(1) the micro-grid and energy storage coordination controller can meet the measurement precision requirement of control and the protection requirement, and combines the control function and the protection function into a whole.
(2) The differential protection function of the microgrid and the energy storage coordination controller can realize the protection integration of multiple devices of the energy storage system.
(3) The microgrid and the energy storage coordination controller have the functions of differential line selection and jump selection.
It will be apparent to those skilled in the art that various modifications and variations can be made to the above-described exemplary embodiments of the present invention without departing from the spirit and scope of the invention. Thus, it is intended that the present invention cover the modifications and variations of this invention provided they come within the scope of the appended claims and their equivalents.
Claims (9)
1. A microgrid and energy storage coordination controller comprises:
a bus board providing a plurality of slots;
the man-machine interface mainboard is connected with the bus board;
the PPC management mainboard is arranged on the bus board and realizes data interaction with the human-computer interface mainboard;
the protection control mainboard is arranged on the bus board and realizes data interaction with the PPC management mainboard;
the alternating current sampling plug-in is arranged on the bus board through the slot, and the alternating current sampling plug-in and the PPC management mainboard realize data interaction;
the access plug-in and the access plug-in are arranged on the bus board through the slots and realize data interaction with the protection control mainboard;
the alternating current sampling plug-in is used for collecting analog signals of an external circuit, the switch-in plug-in is used for collecting switch state signals of the external circuit, and the protection control main board sends instructions to the external circuit through the switch-out plug-in according to the analog signals and the switch state signals so as to switch on and off the switch of the external circuit.
2. The microgrid and energy storage coordinated controller of claim 1, wherein the analog signal comprises an alternating current input signal and/or a direct current input signal of an external circuit.
3. The microgrid and energy storage coordinated controller of claim 2, wherein the analog signals comprise analog quantity data of current transformers and/or voltage transformers of the external circuit.
4. The microgrid and energy storage coordinated controller of claim 1, further comprising a power plug-in disposed on the bus board through the slot, the power plug-in supplying power to the microgrid and energy storage coordinated controller.
5. The microgrid and energy storage coordinated controller of claim 4, wherein the power supply plug-in unit is provided with an alarm device for alarming outwards immediately after power failure occurs.
6. The microgrid and energy storage coordination controller of claim 1, wherein the model of the human-computer interface mainboard is LPC2138, the model of the PPC management mainboard is MPC8308, and the model of the protection control mainboard is TMS320F 28335.
7. The microgrid and energy storage coordination controller of claim 6, wherein the human-computer interface mainboard, the PPC management mainboard and the protection control mainboard all have a self-checking function, the PPC management mainboard monitors the operation conditions of the human-computer interface mainboard and the protection control mainboard, and the human-computer interface mainboard monitors the operation conditions of the protection control mainboard.
8. The microgrid and energy storage coordination controller of claim 1, wherein the bus board is connected with the man-machine interface mainboard through a high-speed communication line.
9. The microgrid and energy storage coordination controller of claim 1, wherein the PPC management motherboard, the ac sampling plug-in, the switch-in plug-in and the switch-out plug-in are respectively connected with the protection control motherboard through signal lines.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011137372.0A CN112186787A (en) | 2020-10-22 | 2020-10-22 | Micro-grid and energy storage coordination controller |
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| CN202011137372.0A CN112186787A (en) | 2020-10-22 | 2020-10-22 | Micro-grid and energy storage coordination controller |
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| CN208094190U (en) * | 2018-05-11 | 2018-11-13 | 南京南瑞继保电气有限公司 | A kind of microgrid coordination control protective unit |
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2020
- 2020-10-22 CN CN202011137372.0A patent/CN112186787A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203553962U (en) * | 2013-11-22 | 2014-04-16 | 国家电网公司 | Micro grid protection coordination controller |
| CN207819562U (en) * | 2018-02-09 | 2018-09-04 | 广东电网有限责任公司揭阳供电局 | Ring network quick disconnection protection device |
| CN208094190U (en) * | 2018-05-11 | 2018-11-13 | 南京南瑞继保电气有限公司 | A kind of microgrid coordination control protective unit |
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