WO2018133230A1 - 微电网系统的控制方法及装置 - Google Patents
微电网系统的控制方法及装置 Download PDFInfo
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- WO2018133230A1 WO2018133230A1 PCT/CN2017/081511 CN2017081511W WO2018133230A1 WO 2018133230 A1 WO2018133230 A1 WO 2018133230A1 CN 2017081511 W CN2017081511 W CN 2017081511W WO 2018133230 A1 WO2018133230 A1 WO 2018133230A1
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- power
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—ELECTRIC POWER NETWORKS; 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 networks by storage of energy
- H02J3/32—Arrangements for balancing of the load in networks by storage of energy using batteries or super capacitors with converting means
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—ELECTRIC POWER NETWORKS; 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
Definitions
- the present invention relates to the field of automation control, and in particular to a method and apparatus for controlling a microgrid system.
- the existing microgrid power supply system generally controls the instantaneous energy and power balance of the microgrid power supply system by the fluctuation range of the bus voltage, but since the energy is limited in the off-grid system and the load is not controlled, It is easy to cause a system crash due to improper use of energy. It can be seen that the existing method of controlling the instantaneous voltage of the microgrid power supply system is difficult to finely control the load energy prediction and the overall demand.
- Embodiments of the present invention provide a method and apparatus for controlling a microgrid system to at least solve the technical problem that the existing method for controlling the instantaneous voltage balance of the microgrid power supply system is difficult to finely control the load energy prediction and the overall demand.
- a method for controlling a microgrid system includes: a micro-source device, an energy storage device, an electrical load, and a micro-network control device, wherein the method includes: The micro-network control device detects the operating parameters of the micro-grid system, wherein the operating parameters include at least: real-time power generation PW0 of the micro-source device, real-time power PZ of the load that has been turned on, and energy storage device The maximum charging and discharging rated power PE; performing power balance and/or energy balance control on the above micro grid system according to the detected operating parameters.
- controlling the energy storage device to discharge at a predetermined discharge power PF includes: determining whether the predetermined discharge power PF is greater than a maximum charge and discharge rated power PE of the energy storage device; if greater than, stopping The low priority load supply in the load is turned on.
- the method further includes: if it is determined that the predetermined charging power PC is smaller than a maximum charging and discharging rated power PE of the energy storage device And determining whether the battery capacity SOC of the energy storage device is greater than a preset value; if the SOC is greater than the preset value, sending a second power limit instruction to the micro source device to limit the micro-source device to a second predetermined real-time
- performing energy balance control on the microgrid system according to the detected operating parameter includes: predicting a priority of the opened load according to the detected real-time power PZ of the loaded load in the electrical load The amount of power that needs to be consumed in the first preset time period and the remaining power generation amount of the micro-source device in the first preset time period to obtain a corresponding prediction result; and the current remaining power of the energy storage device and the specified priority The power consumed by the load in the second preset time period obtains a corresponding acquisition result; according to the foregoing prediction result and the foregoing acquisition result, each priority load in the opened load is controlled to balance the micro grid system energy of.
- the method further includes: when PF>0, and PW0+PF ⁇ PZ, or when PC>0, and PW0 ⁇ Abnormal alarm processing is performed on the PZ+PC.
- a control device for a microgrid system comprising: a micro source device, an energy storage device, an electrical load, and a piconet control device, wherein the device comprises
- the detecting unit is configured to detect an operating parameter of the microgrid system by using a microgrid control device, where the operating parameter includes at least: a real-time generating power PW0 of the micro-source device, and a real-time power consumption of the loaded load in the electrical load. PZ, the maximum charge and discharge rated power PE of the above energy storage device; and a control unit for performing power balance and/or energy balance control on the micro grid system according to the detected operating parameters.
- the first control module includes: a first determining submodule, configured to determine whether the predetermined discharge power PF is greater than a maximum charge and discharge rated power PE of the energy storage device; and an electronic supply module configured to determine the predetermined discharge When the power PF is greater than the maximum charge and discharge rated power PE of the energy storage device, power supply to the low priority load in the above-mentioned opened load is stopped.
- a third determining submodule configured to determine whether the predetermined charging power PC is greater than the maximum charging and discharging rated power PE of the energy storage device, and if it is determined that the predetermined charging power PC is smaller than the foregoing In the case of the maximum charge and discharge rated power PE of the energy storage device
- control unit includes: a prediction module, configured to predict, according to the detected real-time power PZ of the load that is turned on, the load of the specified priority in the opened load is within a first preset time period The amount of power to be consumed and the remaining power generation amount of the micro-source device in the first preset time period are obtained, and the corresponding prediction result is obtained; the acquiring module is configured to acquire the current remaining power of the energy storage device and the load of the specified priority. The power consumption in the second preset time period is obtained, and the third control module is configured to control each priority load in the opened load according to the foregoing prediction result and the foregoing obtaining result to balance the foregoing The energy of the microgrid system.
- a prediction module configured to predict, according to the detected real-time power PZ of the load that is turned on, the load of the specified priority in the opened load is within a first preset time period The amount of power to be consumed and the remaining power generation amount of the micro-source device in the first preset time period are obtained, and the corresponding prediction
- the apparatus further includes: an executing unit, configured to perform power balance control on the microgrid system according to the detected operating parameter, when PF>0, and PW0+PF ⁇ PZ, or when PC> 0, and PW0 ⁇ PZ+PC, the abnormal alarm processing is executed.
- an executing unit configured to perform power balance control on the microgrid system according to the detected operating parameter, when PF>0, and PW0+PF ⁇ PZ, or when PC> 0, and PW0 ⁇ PZ+PC, the abnormal alarm processing is executed.
- a storage medium comprising a stored program, wherein the program executes a control method of the microgrid system.
- a processor for running a program wherein a program of controlling a microgrid system is executed while the program is running.
- a terminal including: a detecting unit, configured to detect an operating parameter of a microgrid system by using a microgrid control device, where the operating parameter includes at least: real-time power generation of the micro-source device Power PW0, real-time power PZ of the load that has been turned on in the electrical load, maximum charge and discharge rated power PE of the energy storage device; control unit for power balancing and/or energy of the microgrid system based on the detected operating parameters Balance control; a processor, a processor running program, wherein the program runs a control method of the micro grid system for data output from the detecting unit and the control unit.
- the operating parameter includes at least: real-time power generation of the micro-source device Power PW0, real-time power PZ of the load that has been turned on in the electrical load, maximum charge and discharge rated power PE of the energy storage device
- control unit for power balancing and/or energy of the microgrid system based on the detected operating parameters Balance control
- a processor a processor running program, wherein the
- a terminal including: a detecting unit, configured to detect an operating parameter of a microgrid system by using a microgrid control device, where the operating parameter includes at least: real-time power generation of the micro-source device Power PW0, real-time power PZ of the load that has been turned on in the electrical load, maximum charge and discharge rated power PE of the energy storage device; control unit for power balancing and/or energy of the microgrid system based on the detected operating parameters Balance control; a storage medium for storing a program, wherein the program performs a control method of the micro grid system for data output from the detecting unit and the control unit at runtime.
- the operating parameter includes at least: real-time power generation of the micro-source device Power PW0, real-time power PZ of the load that has been turned on in the electrical load, maximum charge and discharge rated power PE of the energy storage device
- control unit for power balancing and/or energy of the microgrid system based on the detected operating parameters Balance control
- a storage medium for storing
- a control method of a micro grid system is adopted, wherein the micro grid system includes: a micro source device, an energy storage device, a power load, and a micro network control device, wherein the method includes: controlling through a micro network
- the device detects operating parameters of the microgrid system, wherein the operating parameters include at least: real-time power generation PW0 of the micro-source device, real-time power PZ of the load that has been turned on in the power load, real-time charging power PC of the energy storage device, and real-time discharge power PF; according to the detected operating parameters, power balance and/or energy balance control of the microgrid system; through the energy prediction and hierarchical management control of the equipment load, the microgrid off-grid operation is stable and reliable.
- the existing technical problems of controlling the instantaneous voltage balance of the microgrid power supply system are difficult to control the load energy prediction and the overall demand.
- FIG. 1 is a block diagram of an alternative microgrid system in accordance with an embodiment of the present invention.
- FIG. 2 is a flow chart of a method of controlling a microgrid system according to an embodiment of the present invention
- FIG. 3 is a flow chart of an optional control of power balance of a microgrid system in accordance with an embodiment of the present invention
- FIG. 4 is a flow chart of an optional control of energy balance of a microgrid system in accordance with an embodiment of the present invention
- FIG. 5 is a schematic diagram of a control device of a microgrid system according to an embodiment of the present invention.
- an embodiment of a method of controlling a microgrid system there is provided an embodiment of a method of controlling a microgrid system, and it is noted that the steps illustrated in the flowchart of the accompanying drawings may be performed in a computer system such as a set of computer executable instructions, and Although the logical order is shown in the flowcharts, in some cases the steps shown or described may be performed in a different order than the ones described herein.
- FIG. 1 is a structural diagram of an optional microgrid system according to an embodiment of the present invention.
- the microgrid system includes: a micro-source device 120, an energy storage device 140, an electrical load 160, and a piconet control.
- Apparatus 180 FIG. 2 is a flowchart of a method for controlling a microgrid system according to an embodiment of the present invention.
- the control method of the microgrid system includes the following steps:
- Step S102 The operating parameters of the microgrid system are detected by the microgrid control device, where the operating parameters include at least: a real-time power generation power PW0 of the micro-source device, a real-time power consumption PZ of the load that has been turned on in the power load, and a maximum energy storage device. Charging and discharging rated power PE;
- Step S104 performing power balance and/or energy balance control on the micro grid system according to the detected operating parameters.
- the microgrid system includes microsource devices, energy storage devices, electrical loads, and microgrid control devices
- the microgrid system The operating parameter may be the real-time power generation PW0 of the micro-source device, or the real-time power PZ of the power load that has been turned on in the power load, the maximum charge and discharge rated power of the energy storage device PE, and the energy storage device.
- the communication between the micro-network control device and the micro-source device, the energy storage device, and the electrical load device may adopt various communication modes such as wired, wireless, and power line carrier.
- the micro-source devices in the micro-grid system may be photovoltaic power generation, wind power generation, backup generators, etc. These devices can be used as micro-source devices to supply power to the DC bus, but the energy characteristics of the micro-source devices are not necessarily Continuous supply of electrical energy, whose instantaneous power is simultaneously limited by the maximum rating of the conversion device.
- the energy storage device may include an energy storage battery, an energy storage DC/DC conversion device, a battery management unit, and the like, and the maximum charge and discharge rated power PE is limited by the conversion device.
- the electrical load device can be configured with an energy monitoring module to collect energy consumption and usage information.
- the microgrid control device may have a microgrid operating parameter state acquisition module, a microgrid system power control module, a microgrid system energy control module, and a microgrid system fault diagnosis module, which may be used to record the priority level of each load device in the initialization phase, Operating parameters such as rated power, minimum open running time slice, and power consumption forecast for minimum open running time slice.
- the microgrid system includes: a micro-source device, an energy storage device, a power load, and a micro-grid control device, wherein the method includes: detecting the micro-grid system through the micro-network control device
- the operating parameters include at least: real-time power generation PW0 of the micro-source device, real-time power PZ of the load that has been turned on in the power load, maximum charge and discharge rated power of the energy storage device PE, real-time charging of the energy storage device Real-time discharge power PF of power PC and energy storage equipment.
- the power balance and/or energy balance control of the microgrid system is achieved, and when the microgrid system is off-grid, the energy prediction and hierarchical management control of the equipment load are realized, and the microgrid is operated off-grid.
- the purpose of stability and reliability thus achieving the technical effect of finely controlling the load energy prediction and the overall demand, and solving the existing method of controlling the instantaneous voltage balance of the microgrid power supply system is difficult to refine the load energy prediction and the overall demand.
- the state parameter of the microgrid system collected by the microgrid control device may further include a predetermined charging power PC of the energy storage battery of the energy storage device, a predetermined discharge power PF of the energy storage battery of the energy storage device, and a storage battery capacity SOC. That is, the method for performing power balance control on the microgrid system may be to determine the micro source based on the detected operating parameters. Whether the real-time power generation power PW0 of the equipment is less than the real-time power consumption PZ of the load that has been turned on in the power load, and the energy storage power is controlled when the real-time power generation power PW0 of the micro-source equipment is smaller than the real-time power consumption PZ of the load that has been turned on in the power load.
- the device discharges at a predetermined discharge power PF, and the energy storage battery of the energy storage device may discharge at a predetermined discharge power PF, wherein the predetermined discharge power PF may be equal to the real-time power PZ of the opened load in the electrical load minus the micro-source device Real-time power generation power PW0; in the case where the real-time power generation power PW0 of the micro-source device is greater than the real-time power consumption PZ of the load that has been turned on in the power load, the control energy storage device is charged at a predetermined charging power PC, which may be an energy storage device The energy storage battery is charged at a predetermined charging power PC, and the energy storage device can be equal to the real-time power generation power PW0 of the micro-source device minus the real-time power consumption PZ of the activated load in the power load at a predetermined charging power PC.
- FIG. 3 is a flow chart of an optional control of power balance of a microgrid system in accordance with an
- controlling the energy storage device to discharge at the predetermined discharge power PF includes: determining whether the predetermined discharge power PF is greater than a maximum charge and discharge rated power PE of the energy storage device; if greater than, stopping to be a low priority among the opened load Load power supply.
- the predetermined discharge power PF is continuously determined. Whether it is greater than the maximum charge and discharge rated power PE of the energy storage device, when the predetermined discharge power PF is greater than the maximum charge and discharge rated power PE of the energy storage device, the power supply to the low priority load in the opened load is stopped.
- the energy storage device is controlled to be charged at a predetermined charging power PC, which may be an energy storage battery of the energy storage device. Charging is performed at a predetermined charging power PC.
- the charging device is controlled to charge with the predetermined charging power PC, it is determined whether the predetermined charging power PC is greater than the maximum charging and discharging rated power PE of the energy storage device, and the predetermined charging power PC is greater than the maximum charging and discharging rated power PE of the energy storage device.
- the micro-source device And transmitting, by the micro-source device, a first power limit instruction to limit the micro-source device to generate power by using the first predetermined real-time power generation power PW1, where the first predetermined real-time power limit power PW1 is equal to the real-time power generation power PW0 of the micro-source device minus the power load
- the real-time power PZ of the load and the maximum charge and discharge rated power PE of the energy storage device are turned on.
- the second power limit instruction is sent to the micro source device, such as The piconet control device sends a limited power PW-PZ command to the micro-source DC/DC.
- performing energy balance control on the microgrid system according to the detected operating parameter includes: predicting a specified priority load in the opened load according to the detected real-time power PZ of the loaded load in the electrical load The amount of power that needs to be consumed in a predetermined period of time and the remaining power generation amount of the micro-source device in the first preset time period, and the corresponding prediction result is obtained; and the current remaining capacity of the energy-storing device and the load of the specified priority are obtained in the second pre-load Set the power consumption in the time period to obtain the corresponding acquisition result; according to the prediction result and the acquisition result, control each priority load in the opened load to balance the energy of the micro grid system.
- the specified priorities in the opened load can be divided into different levels. For example, all the loads of the system are divided into four levels according to the priority, from high to low: 4-system level (including control system, detection and collection function operation), 3-contingency Level (lighting, ventilation, drinking water), 2-custom level (daily cooking, etc.), 1-comfort level (air conditioning, hot water), among which high priority level 4, level 3, level 2, level 1 daily
- the power consumption is used for prediction.
- FIG. 4 is an optional flow chart for controlling energy balance of a microgrid system according to an embodiment of the present invention.
- the power consumption prediction of the electrical load in the system may be 0 hours at 0 o'clock.
- the priority of the current request to enable the load is 1, and the minimum on-time running time of the device to be turned on is QFX, which needs to be satisfied: Q>QXY4+QXY3, and Q+QW-QXY4-QXY3-( QXY2-QYXHY2)>QFX; otherwise it is not allowed to be turned on; b.
- the priority of the current request is 2, and the minimum power-on time of the device to be turned on is QFX, which needs to be satisfied: Q>QXY4+QXY3, and Q+ QW-QXY4-QXY3>QFX; otherwise, the device with priority 1 is turned off; c.
- the priority of the current request is 3, and the minimum power-on time for the device to be turned on is QFX, which needs to be satisfied: Q> QXY4, Q+QW-QXY4>QFX, otherwise, the device with priority 2 is turned off and judged. Insufficient power is detected during operation, that is, the low priority device is turned off.
- the method further includes: when PF>0, and PW+PF ⁇ PZ, or when PC>0, and PW ⁇ PZ When the PC is used, the abnormal alarm processing is executed.
- the real-time power imbalance of the microgrid system can be monitored and diagnosed and judged: when PF>0, PW+PF ⁇ PZ, or when PC >0, and PW ⁇ PZ+PC, an abnormal alarm message is issued.
- FIG. 5 is according to the present invention.
- FIG. 5 A schematic diagram of a control device of a microgrid system according to an embodiment, as shown in FIG.
- the device includes: a detecting unit 520, configured to detect an operating parameter of the microgrid system by using a microgrid control device, where the operating parameter includes at least: The real-time power generation power PW0 of the micro-source device, the real-time power consumption PZ of the load that has been turned on in the power load, the maximum charge and discharge power rating PE of the energy storage device, and the control unit 540, for the micro-grid system according to the detected operating parameters Perform power balance and / or energy balance control.
- the operating parameter includes at least: The real-time power generation power PW0 of the micro-source device, the real-time power consumption PZ of the load that has been turned on in the power load, the maximum charge and discharge power rating PE of the energy storage device, and the control unit 540, for the micro-grid system according to the detected operating parameters Perform power balance and / or energy balance control.
- the energy prediction and hierarchical management control of the equipment load is realized when the microgrid system is off-grid, and the microgrid off-grid operation is stable and reliable, thereby realizing the fineness of load energy prediction and overall demand.
- the technical effect of the control and thus the existing technical problems of controlling the instantaneous voltage balance of the microgrid power supply system, it is difficult to finely control the load energy prediction and the overall demand.
- the micro-source device, the energy storage device, the electrical load and the micro-network control device may be operated in a computer terminal as part of the device, and the function implemented by the module may be performed by a processor in the computer terminal.
- the computer terminal can also be a smart phone (such as an Android phone, an iOS phone, etc.), a tablet computer, a palm computer, and a mobile Internet device (MID), a PAD, and the like.
- a determining module configured to determine, according to the detected operating parameter, whether the real-time power generation power PW0 of the micro-source device
- the foregoing determining module, the first control module and the second control module may be run in the computer terminal as part of the device, and the functions implemented by the module may be performed by a processor in the computer terminal, and the computer terminal is also It can be a smart phone (such as an Android phone, an iOS phone, etc.), a tablet computer, a palm computer, and a mobile Internet device (MID), a PAD, and the like.
- a smart phone such as an Android phone, an iOS phone, etc.
- a tablet computer such as an iOS phone, etc.
- a palm computer such as a tablet computer, a palm computer, and a mobile Internet device (MID), a PAD, and the like.
- MID mobile Internet device
- the first control module includes: a first determining submodule, configured to determine whether the predetermined discharge power PF is greater than a maximum charge and discharge rated power PE of the energy storage device; and an electronic supply module configured to determine that the predetermined discharge power PF is greater than the energy storage In the case of the maximum charge and discharge rated power of the device, the power supply to the low priority load in the opened load is stopped.
- the foregoing first determining sub-module and the electronic providing module may be operated in a computer terminal as part of the device, and the functions implemented by the above module may be performed by a processor in the computer terminal, and the computer terminal may also be intelligent.
- Mobile devices such as Android phones, iOS phones, etc.
- tablets such as tablets, handheld computers, and mobile Internet devices (MID), PAD and other terminal devices.
- MID mobile Internet devices
- the foregoing second determining sub-module and the first transmitting sub-module may be run in a computer terminal as part of the device, and the functions implemented by the foregoing module may be executed by a processor in the computer terminal, and the computer terminal may also be It is a smart phone (such as Android phone, iOS phone, etc.), tablet computer, PDA, and mobile Internet devices (MID), PAD and other terminal devices.
- the foregoing third determining sub-module and the second sending sub-module may be run in a computer terminal as part of the device, and the functions implemented by the above-mentioned modules may be performed by a processor in the computer terminal, and the computer terminal may also It is a smart phone (such as Android phone, iOS phone, etc.), tablet computer, PDA, and mobile Internet devices (MID), PAD and other terminal devices.
- a smart phone such as Android phone, iOS phone, etc.
- tablet computer such as Samsung Galaxy Tabs, etc.
- PDA personal digital assistant
- MID mobile Internet devices
- control unit includes: a prediction module, configured to detect the opened load according to the detected electrical load
- the real-time power PZ is used to predict the amount of power that needs to be consumed by the specified priority load in the first preset time period and the remaining power generation amount of the micro-source device in the first preset time period to obtain a corresponding prediction result
- the module is configured to obtain the current amount of power stored in the energy storage device and the power consumed by the specified priority load in the second preset time period, to obtain a corresponding acquisition result
- a third control module configured to use the prediction result and the acquisition result Control the priority loads in the opened load to balance the energy of the microgrid system.
- the foregoing prediction module, the acquisition module, and the third control module may be run in a computer terminal as part of the device, and the functions implemented by the module may be performed by a processor in the computer terminal, and the computer terminal may also be Smartphones (such as Android phones, iOS phones, etc.), tablets, PDAs, and mobile Internet devices (MID), PAD and other terminal devices.
- Smartphones such as Android phones, iOS phones, etc.
- MID mobile Internet devices
- the apparatus further includes: an executing unit, configured to perform power balance control on the microgrid system according to the detected operating parameter, when PF>0, and PW+PF ⁇ PZ, or when PC>0
- an executing unit configured to perform power balance control on the microgrid system according to the detected operating parameter, when PF>0, and PW+PF ⁇ PZ, or when PC>0
- the PW ⁇ PZ+PC is executed, the abnormal alarm processing is executed.
- the foregoing execution unit may be run in a computer terminal as part of the device, and the functions implemented by the above module may be performed by a processor in the computer terminal, and the computer terminal may also be a smart phone (eg, Android mobile phone, iOS). Mobile phones, etc., tablet computers, PDAs, and mobile Internet devices (MID), PAD and other terminal devices.
- a smart phone eg, Android mobile phone, iOS
- MID mobile Internet devices
- the various functional units provided by the embodiments of the present application may be operated in a mobile terminal, a computer terminal, or the like, or may be stored as part of a storage medium.
- embodiments of the present invention may provide a computer terminal, which may be any computer terminal device in a group of computer terminals.
- a computer terminal may also be replaced with a terminal device such as a mobile terminal.
- the computer terminal may be located in at least one network device of the plurality of network devices of the computer network.
- the computer terminal may execute the program code of the following steps in the control method of the micro-grid system: detecting the operating parameters of the micro-grid system through the micro-network control device, where the operating parameters include at least: real-time power generation of the micro-source device The power PW0, the real-time power PZ of the load that has been turned on in the power load, the maximum charge and discharge rated power PE of the energy storage device, and the power balance and/or energy balance control of the micro grid system according to the detected operating parameters.
- the computer terminal can include: one or more processors, memory, and transmission devices.
- the memory can be used to store software programs and modules, such as the control method of the microgrid system and the program instructions/modules corresponding to the device in the embodiment of the present invention, and the processor executes the software programs and modules stored in the memory, thereby executing each A functional application and data processing, that is, a control method of the above microgrid system is implemented.
- the memory may include a high speed random access memory, and may also include non-volatile memory such as one or more magnetic storage devices, flash memory, or other non-volatile solid state memory.
- the memory can further include memory remotely located relative to the processor, which can be connected to the terminal over a network. Examples of such networks include, but are not limited to, the Internet, intranets, local area networks, mobile communication networks, and combinations thereof.
- the above transmission device is for receiving or transmitting data via a network.
- Specific examples of the above network may include a wired network and a wireless network.
- the transmission device includes a Network Interface Controller (NIC) that can be connected to other network devices and routers via a network cable to communicate with the Internet or a local area network.
- the transmission device is a Radio Frequency (RF) module for communicating with the Internet wirelessly.
- NIC Network Interface Controller
- RF Radio Frequency
- the memory is used to store preset action conditions and information of the preset rights user, and an application.
- the processor can call the memory stored information and the application by the transmitting device to execute the program code of the method steps of each of the alternative or preferred embodiments of the above method embodiments.
- the computer terminal can also be a smart phone (such as an Android phone, an iOS phone, etc.), a tablet computer, a palm computer, and a mobile Internet device (MID), a PAD, and the like.
- a smart phone such as an Android phone, an iOS phone, etc.
- a tablet computer such as a Samsung Galaxy Tab, etc.
- a palm computer such as a Samsung Galaxy Tab, etc.
- MID mobile Internet device
- Embodiments of the present invention also provide a storage medium.
- the foregoing storage medium may be used to save program code executed by the control method of the micro grid system provided by the foregoing method embodiment and the device embodiment.
- the foregoing storage medium may be located in any one of the computer terminal groups in the computer network, or in any one of the mobile terminal groups.
- the storage medium is arranged to store program code for performing the following steps:
- the operating parameters of the microgrid system are detected by the microgrid control device, wherein the operating parameters include at least: real-time power generation PW0 of the micro-source device, real-time power PZ of the load that has been turned on in the power load, and maximum charge and discharge rating of the energy storage device.
- Power PE power balance and/or energy balance control of the microgrid system based on the detected operating parameters.
- the storage medium may also be provided as program code of various preferred or optional method steps provided by the control method of the microgrid system.
- a storage medium including a stored program, wherein the program executes a control method of the micro grid system.
- a processor for running a program wherein a program of controlling a microgrid system is executed while the program is running.
- a terminal including: a detecting unit, configured to detect an operating parameter of a microgrid system by using a microgrid control device, where the operating parameter includes at least: real-time power generation of the micro-source device Power PW0, real-time power PZ of the load that has been turned on in the electrical load, maximum charge and discharge rated power PE of the energy storage device; control unit for power balancing and/or energy of the microgrid system based on the detected operating parameters Balance control; a processor, a processor running program, wherein the program runs a control method of the micro grid system for data output from the detecting unit and the control unit.
- the operating parameter includes at least: real-time power generation of the micro-source device Power PW0, real-time power PZ of the load that has been turned on in the electrical load, maximum charge and discharge rated power PE of the energy storage device
- control unit for power balancing and/or energy of the microgrid system based on the detected operating parameters Balance control
- a processor a processor running program, wherein the
- a terminal including: a detecting unit, configured to detect an operating parameter of a microgrid system by using a microgrid control device, where the operating parameter includes at least: real-time power generation of the micro-source device Power PW0, real-time power PZ of the load that has been turned on in the electrical load, maximum charge and discharge rated power PE of the energy storage device; control unit for power balancing and/or energy of the microgrid system based on the detected operating parameters Balance control; a storage medium for storing a program, wherein the program performs a control method of the micro grid system for data output from the detecting unit and the control unit at runtime.
- the operating parameter includes at least: real-time power generation of the micro-source device Power PW0, real-time power PZ of the load that has been turned on in the electrical load, maximum charge and discharge rated power PE of the energy storage device
- control unit for power balancing and/or energy of the microgrid system based on the detected operating parameters Balance control
- a storage medium for storing
- the disclosed technical content may be through other The way to achieve.
- the device embodiments described above are only schematic.
- the division of the unit may be a logical function division.
- there may be another division manner for example, multiple units or components may be combined or may be Integrate into another system, or some features can be ignored or not executed.
- the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, unit or module, and may be electrical or otherwise.
- the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
- each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
- the integrated unit can be implemented either in hardware or in the form of a software functional unit.
- the integrated unit if implemented in the form of a software functional unit and sold or used as a standalone product, may be stored in a computer readable storage medium.
- the technical solution of the present invention which is essential or contributes to the prior art, or all or part of the technical solution, may be embodied in the form of a software product stored in a storage medium.
- a number of instructions are included to cause a computer device (which may be a personal computer, server or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present invention.
- the foregoing storage medium includes: a U disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a removable hard disk, a magnetic disk, or an optical disk, and the like. .
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Abstract
一种微电网系统的控制方法及装置。该微电网系统包括:微源设备(120)、储能设备(140)、用电负载(160)和微网控制设备(180),该方法包括:通过微网控制设备检测微电网系统的运行参数(S102),其中,运行参数至少包括:微源设备的实时发电功率PW0、用电负载中已开启负载的实时用电功率PZ、储能设备的最大充放电额定功率PE;根据检测到的运行参数,对微电网系统进行功率平衡和/或能量平衡控制(S104)。该控制方法及装置解决了现有的控制微电网供电系统瞬时电压平衡的方法难以对负载能量预测和总体需求进行精细化控制的技术问题。
Description
本发明涉及自动化控制领域,具体而言,涉及一种微电网系统的控制方法及装置。
现有的微电网供电系统,一般是通过母线电压的波动范围来控制微电网供电系统瞬时的能量和功率平衡,但是由于在离网的系统中,能源是有限的,负载没有受控的情况下,很容易因为能量的使用不当造成系统的崩溃。可见,现有的控制微电网供电系统瞬时电压的方法难以对负载能量预测和总体需求进行精细化控制。
针对的问题,目前尚未提出有效的解决方案。
发明内容
本发明实施例提供了一种微电网系统的控制方法及装置,以至少解决现有的控制微电网供电系统瞬时电压平衡的方法难以对负载能量预测和总体需求进行精细化控制的技术问题。
根据本发明实施例的一个方面,提供了一种微电网系统的控制方法,上述微电网系统包括:微源设备、储能设备、用电负载和微网控制设备,其中,上述方法包括:通过微网控制设备检测上述微电网系统的运行参数,其中,上述运行参数至少包括:上述微源设备的实时发电功率PW0、上述用电负载中已开启负载的实时用电功率PZ、上述储能设备的最大充放电额定功率PE;根据检测到的上述运行参数,对上述微电网系统进行功率平衡和/或能量平衡控制。
进一步地,根据检测到的上述运行参数,对上述微电网系统进行功率平衡控制包括:根据检测到的上述运行参数,判断上述微源设备的实时发电功率PW0是否小于上述用电负载中已开启负载的实时用电功率PZ;若小于,则控制上述储能设备以预定放电功率PF进行放电,其中,PF=PZ-PW0;若大于,则控制上述储能设备以预定充电功率PC进行充电,其中,PC=PW0-PZ。
进一步地,在控制上述储能设备以预定放电功率PF进行放电包括:判断上述预定放电功率PF是否大于上述储能设备的最大充放电额定功率PE;若大于,则停止为上
述已开启负载中的低优先级负载供电。
进一步地,在控制上述储能设备以预定充电功率PC进行充电包括:判断上述预定充电功率PC是否大于上述储能设备的最大充放电额定功率PE;若大于,则向上述微源设备发送第一功率限制指令,以限制上述微源设备以第一预定实时限制功率PW1进行发电,其中,PW1=PW0-PZ-PE。
进一步地,在判断上述预定充电功率PC是否大于上述储能设备的最大充放电额定功率PE之后,上述方法还包括:若判断出上述预定充电功率PC小于上述储能设备的最大充放电额定功率PE,则判断上述储能设备的电池容量SOC是否大于预设值;若上述SOC大于上述预设值,则向上述微源设备发送第二功率限制指令,以限制上述微源设备以第二预定实时限制功率PW2进行发电,其中,PW2=PW0-PZ。
进一步地,根据检测到的上述运行参数,对上述微电网系统进行能量平衡控制包括:根据检测到的上述用电负载中已开启负载的实时用电功率PZ,预测上述已开启负载中指定优先级的负载在第一预设时间段内需要消耗的电量以及上述微源设备在上述第一预设时间段内剩余发电量,得到对应的预测结果;获取上述储能设备当前所剩电量以及上述指定优先级的负载在第二预设时间段内所消耗的电量,得到对应的获取结果;根据上述预测结果和上述获取结果,对上述已开启负载中各优先级负载进行控制,以平衡上述微电网系统的能量。
进一步地,在根据检测到的上述运行参数,对上述微电网系统进行功率平衡控制之后,上述方法还包括:当PF>0,且PW0+PF≠PZ时,或者当PC>0,且PW0≠PZ+PC时,执行异常告警处理。
根据本发明实施例的另一方面,还提供了一种微电网系统的控制装置,上述微电网系统包括:微源设备、储能设备、用电负载和微网控制设备,其中,上述装置包括:检测单元,用于通过微网控制设备检测上述微电网系统的运行参数,其中,上述运行参数至少包括:上述微源设备的实时发电功率PW0、上述用电负载中已开启负载的实时用电功率PZ、上述储能设备的最大充放电额定功率PE;控制单元,用于根据检测到的上述运行参数,对上述微电网系统进行功率平衡和/或能量平衡控制。
进一步地,上述控制单元包括:判断模块,用于根据检测到的上述运行参数,判断上述微源设备的实时发电功率PW0是否小于上述用电负载中已开启负载的实时用电功率PZ;第一控制模块,用于在判断出上述微源设备的实时发电功率PW0小于上述用电负载中已开启负载的实时用电功率PZ的情况下,控制上述储能设备以预定放电功率PF进行放电,其中,PF=PZ-PW0;第二控制模块,用于在判断出上述微源设备的实时
发电功率PW0大于上述用电负载中已开启负载的实时用电功率PZ的情况下,控制上述储能设备以预定充电功率PC进行充电,其中,PC=PW0-PZ。
进一步地,上述第一控制模块包括:第一判断子模块,用于判断上述预定放电功率PF是否大于上述储能设备的最大充放电额定功率PE;供电子模块,用于在判断出上述预定放电功率PF大于上述储能设备的最大充放电额定功率PE的情况下,停止为上述已开启负载中的低优先级负载供电。
进一步地,上述第二控制模块包括:第二判断子模块,用于判断上述预定充电功率PC是否大于上述储能设备的最大充放电额定功率PE;第一发送子模块,用于在判断出上述预定充电功率PC大于上述储能设备的最大充放电额定功率PE的情况下,向上述微源设备发送第一功率限制指令,以限制上述微源设备以第一预定实时限制功率PW1进行发电,其中,PW1=PW0-PZ-PE。
进一步地,上述装置还包括:第三判断子模块,用于在判断上述预定充电功率PC是否大于上述储能设备的最大充放电额定功率PE之后,且在若判断出上述预定充电功率PC小于上述储能设备的最大充放电额定功率PE的情况下,判断上述储能设备的电池容量SOC是否大于预设值;第二发送子模块,用于在上述SOC大于上述预设值的情况下,向上述微源设备发送第二功率限制指令,以限制上述微源设备以第二预定实时限制功率PW2进行发电,其中,PW2=PW0-PZ。
进一步地,上述控制单元包括:预测模块,用于根据检测到的上述用电负载中已开启负载的实时用电功率PZ,预测上述已开启负载中指定优先级的负载在第一预设时间段内需要消耗的电量以及上述微源设备在上述第一预设时间段内剩余发电量,得到对应的预测结果;获取模块,用于获取上述储能设备当前所剩电量以及上述指定优先级的负载在第二预设时间段内所消耗的电量,得到对应的获取结果;第三控制模块,用于根据上述预测结果和上述获取结果,对上述已开启负载中各优先级负载进行控制,以平衡上述微电网系统的能量。
进一步地,上述装置还包括:执行单元,用于在根据检测到的上述运行参数,对上述微电网系统进行功率平衡控制之后,当PF>0,且PW0+PF≠PZ时,或者当PC>0,且PW0≠PZ+PC时,执行异常告警处理。
根据本发明实施例的另一方面,还提供了一种存储介质,该存储介质包括存储的程序,其中,程序执行微电网系统的控制方法。
根据本发明实施例的另一方面,还提供了一种处理器,该处理器用于运行程序,其中,程序运行时执行微电网系统的控制方法。
根据本发明实施例的另一方面,还提供了一种终端,包括:检测单元,用于通过微网控制设备检测微电网系统的运行参数,其中,运行参数至少包括:微源设备的实时发电功率PW0、用电负载中已开启负载的实时用电功率PZ、储能设备的最大充放电额定功率PE;控制单元,用于根据检测到的运行参数,对微电网系统进行功率平衡和/或能量平衡控制;处理器,处理器运行程序,其中,程序运行时对于从检测单元和控制单元输出的数据执行微电网系统的控制方法。
根据本发明实施例的另一方面,还提供了一种终端,包括:检测单元,用于通过微网控制设备检测微电网系统的运行参数,其中,运行参数至少包括:微源设备的实时发电功率PW0、用电负载中已开启负载的实时用电功率PZ、储能设备的最大充放电额定功率PE;控制单元,用于根据检测到的运行参数,对微电网系统进行功率平衡和/或能量平衡控制;存储介质,用于存储程序,其中,程序在运行时对于从检测单元和控制单元输出的数据执行微电网系统的控制方法。
在本发明实施例中,采用一种微电网系统的控制方法,其中,微电网系统包括:微源设备、储能设备、用电负载和微网控制设备,其中,方法包括:通过微网控制设备检测微电网系统的运行参数,其中,运行参数至少包括:微源设备的实时发电功率PW0、用电负载中已开启负载的实时用电功率PZ、储能设备的实时充电功率PC及实时放电功率PF;根据检测到的运行参数,对微电网系统进行功率平衡和/或能量平衡控制;通过对设备负载的能量预测和分级管理控制,实现微电网离网运行的稳定可靠的目的。通过对能量预测和总体需求进行精细化控制,进而解决了现有的控制微电网供电系统瞬时电压平衡的方法难以对负载能量预测和总体需求进行精细化控制的技术问题。
此处所说明的附图用来提供对本发明的进一步理解,构成本申请的一部分,本发明的示意性实施例及其说明用于解释本发明,并不构成对本发明的不当限定。在附图中:
图1是根据本发明实施例的一种可选的微电网系统的结构图;
图2是根据本发明实施例的一种微电网系统的控制方法的流程图;
图3是根据本发明实施例的一种可选的控制微电网系统功率平衡的流程图;
图4是根据本发明实施例的一种可选的控制微电网系统能量平衡的流程图;
图5是根据本发明实施例的一种微电网系统的控制装置的示意图。
为了使本技术领域的人员更好地理解本发明方案,下面将结合本发明实施例中的附图,对本发明实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例仅仅是本发明一部分的实施例,而不是全部的实施例。基于本发明中的实施例,本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例,都应当属于本发明保护的范围。
需要说明的是,本发明的说明书和权利要求书及附图中的术语“第一”、“第二”等是用于区别类似的对象,而不必用于描述特定的顺序或先后次序。应该理解这样使用的数据在适当情况下可以互换,以便这里描述的本发明的实施例能够以除了在这里图示或描述的那些以外的顺序实施。此外,术语“包括”和“具有”以及他们的任何变形,意图在于覆盖不排他的包含,例如,包含了一系列步骤或单元的过程、方法、系统、产品或设备不必限于清楚地列出的那些步骤或单元,而是可包括没有清楚地列出的或对于这些过程、方法、产品或设备固有的其它步骤或单元。
实施例1
根据本发明实施例,提供了一种微电网系统的控制方法实施例,需要说明的是,在附图的流程图示出的步骤可以在诸如一组计算机可执行指令的计算机系统中执行,并且,虽然在流程图中示出了逻辑顺序,但是在某些情况下,可以以不同于此处的顺序执行所示出或描述的步骤。
图1是根据本发明实施例的一种可选的微电网系统的结构图,如图1所示,微电网系统包括:微源设备120、储能设备140、用电负载160和微网控制设备180,图2是根据本发明实施例的一种微电网系统的控制方法的流程图,如图2所示,微电网系统的控制方法包括如下步骤:
步骤S102,通过微网控制设备检测微电网系统的运行参数,其中,运行参数至少包括:微源设备的实时发电功率PW0、用电负载中已开启负载的实时用电功率PZ、储能设备的最大充放电额定功率PE;
步骤S104,根据检测到的运行参数,对微电网系统进行功率平衡和/或能量平衡控制。
也即,为了实现对微电网系统的精细化控制,需要获取微电网系统的运行参数,由于微电网系统包括微源设备、储能设备、用电负载和微网控制设备,所以,微电网系统的运行参数可以是微源设备的实时发电功率PW0,也可以是用电负载中已经开启运行的用电负载的实时用电功率PZ、储能设备的最大充放电额定功率PE、储能设备的
实时充电功率PC、储能设备的实时放电功率PF。获取微电网系统的运行参数可以是通过微网控制设备进行检测收集得到,即微网控制设备收集的微网系统的状态参数,可以包括:(1)、所有已开启负载的实时功率计算总和:PZ=P1+P2+…Pn;(2)、所有已开启负载的能量消耗统计和记录分析;(3)、微源设备实时发电功率PW0。此外,微网控制设备与微源设备、储能设备、用电负载设备之间的通讯可以采用有线、无线、电力线载波等多种通讯方式。
需要说明的是,微电网系统中微源设备可以是光伏发电、风能发电、备用发电机等,这些设备都可以作为微源设备向直流母线提供电能,但微源设备的能量特点是不一定能持续的提供电能,其瞬时功率同时受转换装置的最大额定值限制。储能设备可以包括储能电池、储能DC/DC转换装置、电池管理单元等,其最大充放电额定功率PE受转换装置的限制。用电负载设备可以配置有能量监测模块,对能源消耗和使用信息进行采集。微网控制设备可以具有微网运行参数状态采集模块、微网系统功率控制模块、微网系统能量控制模块、微网系统故障诊断模块,其可以用于在初始化阶段记录各负载设备的优先级别、额定功率、最小开启运行时间片、最小开启运行时间片的用电量预测等运行参数。
通过上述方式,采用一种微电网系统的控制方法,微电网系统包括:微源设备、储能设备、用电负载和微网控制设备,其中,方法包括:通过微网控制设备检测微电网系统的运行参数,其中,运行参数至少包括:微源设备的实时发电功率PW0、用电负载中已开启负载的实时用电功率PZ、储能设备的最大充放电额定功率PE、储能设备的实时充电功率PC、储能设备的实时放电功率PF。根据检测到的运行参数,对微电网系统进行功率平衡和/或能量平衡控制,达到了在微电网系统离网运行时,通过设备负载的能量预测和分级管理控制,实现微电网离网运行的稳定可靠的目的,从而实现了对负载能量预测和总体需求进行精细化控制的技术效果,进而解决了现有的控制微电网供电系统瞬时电压平衡的方法难以对负载能量预测和总体需求进行精细化控制的技术问题。
可选地,根据检测到的运行参数,对微电网系统进行功率平衡控制包括:根据检测到的运行参数,判断微源设备的实时发电功率PW0是否小于用电负载中已开启负载的实时用电功率PZ;若小于,则控制储能设备以预定放电功率PF进行放电,其中,PF=PZ-PW0;若大于,则控制储能设备以预定充电功率PC进行充电,其中,PC=PW0-PZ。
其中,微网控制设备收集的微网系统的状态参数,还可以包括储能设备的储能电池的预定充电功率PC,储能设备的储能电池的预定放电功率PF,储能电池容量SOC。也即,对微电网系统进行功率平衡控制的方法可以是根据检测到的运行参数判断微源
设备的实时发电功率PW0是否小于用电负载中已开启负载的实时用电功率PZ,在微源设备的实时发电功率PW0小于用电负载中已开启负载的实时用电功率PZ的情况下,控制储能设备以预定放电功率PF进行放电,可以是储能设备的储能电池以预定放电功率PF放电,其中,预定放电功率PF可以等于用电负载中已开启负载的实时用电功率PZ减去微源设备的实时发电功率PW0;在微源设备的实时发电功率PW0大于用电负载中已开启负载的实时用电功率PZ的情况下,控制储能设备以预定充电功率PC进行充电,可以是储能设备的储能电池以预定充电功率PC进行充电,储能设备以预定充电功率PC可以等于微源设备的实时发电功率PW0减去用电负载中已开启负载的实时用电功率PZ。具体的,例如,图3所示,图3是根据本发明实施例的一种可选的控制微电网系统功率平衡的流程图。
可选地,在控制储能设备以预定放电功率PF进行放电包括:判断预定放电功率PF是否大于储能设备的最大充放电额定功率PE;若大于,则停止为已开启负载中的低优先级负载供电。
也即,在微源设备的实时发电功率PW0小于用电负载中已开启负载的实时用电功率PZ的情况下,控制储能设备以预定放电功率PF进行放电的情况下,继续判断预定放电功率PF是否大于储能设备的最大充放电额定功率PE,在预定放电功率PF大于储能设备的最大充放电额定功率PE的情况下,停止为已开启负载中的低优先级负载供电。
可选地,在控制储能设备以预定充电功率PC进行充电包括:判断预定充电功率PC是否大于储能设备的最大充放电额定功率PE;若大于,则向微源设备发送第一功率限制指令,以限制微源设备以第一预定实时限制功率PW1进行发电,其中,PW1=PW0-PZ-PE。
也即,在微源设备的实时发电功率PW0大于用电负载中已开启负载的实时用电功率PZ的情况下,控制储能设备以预定充电功率PC进行充电,可以是储能设备的储能电池以预定充电功率PC进行充电。在控制储能设备以预定充电功率PC进行充电时判断预定充电功率PC是否大于储能设备的最大充放电额定功率PE,在预定充电功率PC大于储能设备的最大充放电额定功率PE的情况下,向微源设备发送第一功率限制指令,以限制微源设备以第一预定实时发电功率PW1进行发电,第一预定实时限制功率PW1等于微源设备的实时发电功率PW0减去用电负载中已开启负载的实时用电功率PZ以及储能设备的最大充放电额定功率PE。
可选地,在判断预定充电功率PC是否大于储能设备的最大充放电额定功率PE之后,上述方法还包括:若判断出预定充电功率PC小于储能设备的最大充放电额定功率PE,则判断储能设备的电池容量SOC是否大于预设值;若SOC大于预设值,则向微源
设备发送第二功率限制指令,以限制微源设备以第二预定实时限制功率PW2进行发电,其中,PW2=PW0-PZ。
也即,当需求的PC小于PE时,且当监测到储能设备的电池容量(SOC)大于预设值,如大于90%电池停止充电时,向微源设备发送第二功率限制指令,如微网控制设备向微源DC/DC发送限制功率PW-PZ指令。
可选地,根据检测到的运行参数,对微电网系统进行能量平衡控制包括:根据检测到的用电负载中已开启负载的实时用电功率PZ,预测已开启负载中指定优先级的负载在第一预设时间段内需要消耗的电量以及微源设备在第一预设时间段内剩余发电量,得到对应的预测结果;获取储能设备当前所剩电量以及指定优先级的负载在第二预设时间段内所消耗的电量,得到对应的获取结果;根据预测结果和获取结果,对已开启负载中各优先级负载进行控制,以平衡微电网系统的能量。
也即,通过检测到的用电负载中已开启负载的实时用电功率PZ,预测已开启负载中指定优先级的负载在第一预设时间段内需要消耗的电量以及微源设备在第一预设时间段内剩余发电量。其中,已开启负载中指定优先级可以分为不同级别,例如系统的所有负载按优先级分四级,从高到低:4-系统级(包括控制系统、检测采集功能运行)、3-应急级(照明、通风、饮水)、2-定制级(日常煮饭等)、1-舒适级(空调、热水),其中对高优先级的4级、3级、2级,1级每天的用电量进行预测,当然,也可以对最低优先级1级不预测用电量,根据当前实际能源状况和第一预设时间段内(如最小开启运行时间片)的用电量预测确定,可以实现对微电网系统进行能量平衡控制。具体地,如图4所示,图4是根据本发明实施例的一种可选的控制微电网系统能量平衡的流程图,对系统中用电负载的耗电预测可以是24小时以0点-23点为周期,优先级4-2的负载预测用电量汇总分别为:QXY4、QXY3、QXY2;优先级4-2当天已消耗电量汇总分别为:QYXHY4、QYXHY3、QYXHY2;预测当天微源剩余发电量:QW(以当前微源发电功率X剩余发电预计时间进行计算);电池当前剩余电量:Q;单位:瓦.分钟。应急储备:任何时刻系统需检测并保持:Q>QXY4+QXY3作为系统级和应急级的运行24小时,否则2级和1级负载关闭。优先级控制:a.假设当前请求开启负载的优先级为1,待开启设备的最小开启运行时间片用电量QFX,需要满足:Q>QXY4+QXY3,且Q+QW-QXY4-QXY3-(QXY2-QYXHY2)>QFX;否则不允许开启;b.假设当前请求开启的优先级为2,待开启设备的最小开启运行时间片用电量QFX,需要满足:Q>QXY4+QXY3,且Q+QW-QXY4-QXY3>QFX;否则,关闭优先级1的设备再判断;c.假设当前请求开启的优先级为3,待开启设备的最小开启运行时间片用电量QFX,需要满足:Q>QXY4,Q+QW-QXY4>QFX,否则,关闭优先级2的设备再判断。运行过程中检测电量不足,即对低优先级的设备进行关闭。
可选地,在根据检测到的运行参数,对微电网系统进行功率平衡控制之后,上述方法还包括:当PF>0,且PW+PF≠PZ时,或者当PC>0,且PW≠PZ+PC时,执行异常告警处理。
为了实现微电网系统功率不平衡时及时监测,控制微电网系统进行功率平衡,可以监测诊断微电网系统的实时功率不平衡并判断:当PF>0时,PW+PF≠PZ时,或者当PC>0时,且PW≠PZ+PC,发出异常告警信息。
通过上述方式,在微电网系统离网运行时,对设备负载的能量预测和分级管理控制,实现微电网离网运行的稳定可靠。
实施例2
根据本发明实施例的另一方面,还提供了一种微电网系统的控制装置,微电网系统包括:微源设备、储能设备、用电负载和微网控制设备,图5是根据本发明实施例的一种微电网系统的控制装置的示意图,如图5所示,该装置包括:检测单元520,用于通过微网控制设备检测微电网系统的运行参数,其中,运行参数至少包括:微源设备的实时发电功率PW0、用电负载中已开启负载的实时用电功率PZ、储能设备的最大充放电额定功率PE;控制单元540,用于根据检测到的运行参数,对微电网系统进行功率平衡和/或能量平衡控制。
通过上述方式,达到了在微电网系统离网运行时,通过设备负载的能量预测和分级管理控制,实现微电网离网运行的稳定可靠的目的,从而实现了对负载能量预测和总体需求进行精细化控制的技术效果,进而解决了现有的控制微电网供电系统瞬时电压平衡的方法难以对负载能量预测和总体需求进行精细化控制的技术问题。
此处需要说明的是,上述微源设备、储能设备、用电负载和微网控制设备可以作为装置的一部分运行在计算机终端中,可以通过计算机终端中的处理器来执行上述模块实现的功能,计算机终端也可以是智能手机(如Android手机、iOS手机等)、平板电脑、掌上电脑以及移动互联网设备(Mobile Internet Devices,MID)、PAD等终端设备。
可选地,控制单元包括:判断模块,用于根据检测到的运行参数,判断微源设备的实时发电功率PW0是否小于用电负载中已开启负载的实时用电功率PZ;第一控制模块,用于在判断出微源设备的实时发电功率PW0小于用电负载中已开启负载的实时用电功率PZ的情况下,控制储能设备以预定放电功率PF进行放电,其中,PF=PZ-PW0;第二控制模块,用于在判断微源设备的实时发电功率PW0大于用电负载中已开启负载的实时用电功率PZ的情况下,控制储能设备以预定充电功率PC进行充电,其中,
PC=PW0-PZ。
此处需要说明的是,上述判断模块、第一控制模块和第二控制模块可以作为装置的一部分运行在计算机终端中,可以通过计算机终端中的处理器来执行上述模块实现的功能,计算机终端也可以是智能手机(如Android手机、iOS手机等)、平板电脑、掌上电脑以及移动互联网设备(Mobile Internet Devices,MID)、PAD等终端设备。
可选地,第一控制模块包括:第一判断子模块,用于判断预定放电功率PF是否大于储能设备的最大充放电额定功率PE;供电子模块,用于判断预定放电功率PF大于储能设备的最大充放电额定功率PE的情况下,停止为已开启负载中的低优先级负载供电。
此处需要说明的是,上述第一判断子模块和供电子模块可以作为装置的一部分运行在计算机终端中,可以通过计算机终端中的处理器来执行上述模块实现的功能,计算机终端也可以是智能手机(如Android手机、iOS手机等)、平板电脑、掌上电脑以及移动互联网设备(Mobile Internet Devices,MID)、PAD等终端设备。
可选地,第二控制模块包括:第二判断子模块,用于判断预定充电功率PC是否大于储能设备的最大充放电额定功率PE;第一发送子模块,用于判断预定充电功率PC大于储能设备的最大充放电额定功率PE,向微源设备发送第一功率限制指令,以限制微源设备以第一预定实时限制功率PW1进行发电,其中,PW1=PW0-PZ-PE。
此处需要说明的是,上述第二判断子模块和第一发送子模块可以作为装置的一部分运行在计算机终端中,可以通过计算机终端中的处理器来执行上述模块实现的功能,计算机终端也可以是智能手机(如Android手机、iOS手机等)、平板电脑、掌上电脑以及移动互联网设备(Mobile Internet Devices,MID)、PAD等终端设备。
可选地,装置还包括:第三判断子模块,用于在判断预定充电功率PC是否大于储能设备的最大充放电额定功率PE之后,且在判断出预定充电功率PC小于储能设备的最大充放电额定功率PE的情况下,判断储能设备的电池容量SOC是否大于预设值;第二发送子模块,用于在SOC大于预设值的情况下,向微源设备发送第二功率限制指令,以限制微源设备以第二预定实时限制功率PW2进行发电,其中,PW2=PW0-PZ。
此处需要说明的是,上述第三判断子模块和第二发送子模块可以作为装置的一部分运行在计算机终端中,可以通过计算机终端中的处理器来执行上述模块实现的功能,计算机终端也可以是智能手机(如Android手机、iOS手机等)、平板电脑、掌上电脑以及移动互联网设备(Mobile Internet Devices,MID)、PAD等终端设备。
可选地,控制单元包括:预测模块,用于根据检测到的用电负载中已开启负载的
实时用电功率PZ,预测已开启负载中指定优先级的负载在第一预设时间段内需要消耗的电量以及微源设备在第一预设时间段内剩余发电量,得到对应的预测结果;获取模块,用于获取储能设备当前所剩电量以及指定优先级的负载在第二预设时间段内所消耗的电量,得到对应的获取结果;第三控制模块,用于根据预测结果和获取结果,对已开启负载中各优先级负载进行控制,以平衡微电网系统的能量。
此处需要说明的是,上述预测模块、获取模块和第三控制模块可以作为装置的一部分运行在计算机终端中,可以通过计算机终端中的处理器来执行上述模块实现的功能,计算机终端也可以是智能手机(如Android手机、iOS手机等)、平板电脑、掌上电脑以及移动互联网设备(Mobile Internet Devices,MID)、PAD等终端设备。
可选地,上述装置还包括:执行单元,用于在根据检测到的运行参数,对微电网系统进行功率平衡控制之后,当PF>0,且PW+PF≠PZ时,或者当PC>0,且PW≠PZ+PC时,执行异常告警处理。
此处需要说明的是,上述执行单元可以作为装置的一部分运行在计算机终端中,可以通过计算机终端中的处理器来执行上述模块实现的功能,计算机终端也可以是智能手机(如Android手机、iOS手机等)、平板电脑、掌上电脑以及移动互联网设备(Mobile Internet Devices,MID)、PAD等终端设备。
需要说明的是,实施例2中装置部分各实施方式与实施例1中方法部分各实施方式是相对应的,在此不再赘述。
本申请实施例所提供的各个功能单元可以在移动终端、计算机终端或者类似的运算装置中运行,也可以作为存储介质的一部分进行存储。
由此,本发明的实施例可以提供一种计算机终端,该计算机终端可以是计算机终端群中的任意一个计算机终端设备。可选地,在本实施例中,上述计算机终端也可以替换为移动终端等终端设备。
可选地,在本实施例中,上述计算机终端可以位于计算机网络的多个网络设备中的至少一个网络设备。
在本实施例中,上述计算机终端可以执行微电网系统的控制方法中以下步骤的程序代码:通过微网控制设备检测微电网系统的运行参数,其中,运行参数至少包括:微源设备的实时发电功率PW0、用电负载中已开启负载的实时用电功率PZ、储能设备的最大充放电额定功率PE;根据检测到的运行参数,对微电网系统进行功率平衡和/或能量平衡控制。
可选地,该计算机终端可以包括:一个或多个处理器、存储器以及传输装置。
其中,存储器可用于存储软件程序以及模块,如本发明实施例中的微电网系统的控制方法及装置对应的程序指令/模块,处理器通过运行存储在存储器内的软件程序以及模块,从而执行各种功能应用以及数据处理,即实现上述的微电网系统的控制方法。存储器可包括高速随机存储器,还可以包括非易失性存储器,如一个或者多个磁性存储装置、闪存、或者其他非易失性固态存储器。在一些实例中,存储器可进一步包括相对于处理器远程设置的存储器,这些远程存储器可以通过网络连接至终端。上述网络的实例包括但不限于互联网、企业内部网、局域网、移动通信网及其组合。
上述的传输装置用于经由一个网络接收或者发送数据。上述的网络具体实例可包括有线网络及无线网络。在一个实例中,传输装置包括一个网络适配器(Network Interface Controller,NIC),其可通过网线与其他网络设备与路由器相连从而可与互联网或局域网进行通讯。在一个实例中,传输装置为射频(Radio Frequency,RF)模块,其用于通过无线方式与互联网进行通讯。
其中,具体地,存储器用于存储预设动作条件和预设权限用户的信息、以及应用程序。
处理器可以通过传输装置调用存储器存储的信息及应用程序,以执行上述方法实施例中的各个可选或优选实施例的方法步骤的程序代码。
本领域普通技术人员可以理解,计算机终端也可以是智能手机(如Android手机、iOS手机等)、平板电脑、掌上电脑以及移动互联网设备(Mobile Internet Devices,MID)、PAD等终端设备。
本领域普通技术人员可以理解上述实施例的各种方法中的全部或部分步骤是可以通过程序来指令终端设备相关的硬件来完成,该程序可以存储于一计算机可读存储介质中,存储介质可以包括:闪存盘、只读存储器(Read-Only Memory,ROM)、随机存取器(Random Access Memory,RAM)、磁盘或光盘等。
本发明的实施例还提供了一种存储介质。可选地,在本实施例中,上述存储介质可以用于保存上述方法实施例和装置实施例所提供的微电网系统的控制方法所执行的程序代码。
可选地,在本实施例中,上述存储介质可以位于计算机网络中计算机终端群中的任意一个计算机终端中,或者位于移动终端群中的任意一个移动终端中。
可选地,在本实施例中,存储介质被设置为存储用于执行以下步骤的程序代码:
通过微网控制设备检测微电网系统的运行参数,其中,运行参数至少包括:微源设备的实时发电功率PW0、用电负载中已开启负载的实时用电功率PZ、储能设备的最大充放电额定功率PE;根据检测到的运行参数,对微电网系统进行功率平衡和/或能量平衡控制。
可选地,在本实施例中,存储介质还可以被设置为微电网系统的控制方法提供的各种优选的或可选的方法步骤的程序代码。
如上参照附图以示例的方式描述了根据本发明的微电网系统的控制方法及装置。但是,本领域技术人员应当理解,对于上述本发明所提出的微电网系统的控制方法及装置,还可以在不脱离本发明内容的基础上做出各种改进。因此,本发明的保护范围应当由所附的权利要求书的内容确定。
此外,根据本发明实施例的另一方面,还提供了一种存储介质,该存储介质包括存储的程序,其中,程序执行微电网系统的控制方法。
根据本发明实施例的另一方面,还提供了一种处理器,该处理器用于运行程序,其中,程序运行时执行微电网系统的控制方法。
根据本发明实施例的另一方面,还提供了一种终端,包括:检测单元,用于通过微网控制设备检测微电网系统的运行参数,其中,运行参数至少包括:微源设备的实时发电功率PW0、用电负载中已开启负载的实时用电功率PZ、储能设备的最大充放电额定功率PE;控制单元,用于根据检测到的运行参数,对微电网系统进行功率平衡和/或能量平衡控制;处理器,处理器运行程序,其中,程序运行时对于从检测单元和控制单元输出的数据执行微电网系统的控制方法。
根据本发明实施例的另一方面,还提供了一种终端,包括:检测单元,用于通过微网控制设备检测微电网系统的运行参数,其中,运行参数至少包括:微源设备的实时发电功率PW0、用电负载中已开启负载的实时用电功率PZ、储能设备的最大充放电额定功率PE;控制单元,用于根据检测到的运行参数,对微电网系统进行功率平衡和/或能量平衡控制;存储介质,用于存储程序,其中,程序在运行时对于从检测单元和控制单元输出的数据执行微电网系统的控制方法。
本发明实施例序号仅仅为了描述,不代表实施例的优劣。
在本发明的实施例中,对各个实施例的描述都各有侧重,某个实施例中没有详述的部分,可以参见其他实施例的相关描述。
在本申请所提供的几个实施例中,应该理解到,所揭露的技术内容,可通过其它
的方式实现。其中,以上所描述的装置实施例仅仅是示意性的,例如所述单元的划分,可以为一种逻辑功能划分,实际实现时可以有另外的划分方式,例如多个单元或组件可以结合或者可以集成到另一个系统,或一些特征可以忽略,或不执行。另一点,所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口,单元或模块的间接耦合或通信连接,可以是电性或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的,作为单元显示的部件可以是或者也可以不是物理单元,即可以位于一个地方,或者也可以分布到多个单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外,在本发明各个实施例中的各功能单元可以集成在一个处理单元中,也可以是各个单元单独物理存在,也可以两个或两个以上单元集成在一个单元中。集成的单元既可以采用硬件的形式实现,也可以采用软件功能单元的形式实现。
所述集成的单元如果以软件功能单元的形式实现并作为独立的产品销售或使用时,可以存储在一个计算机可读取存储介质中。基于这样的理解,本发明的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的全部或部分可以以软件产品的形式体现出来,该计算机软件产品存储在一个存储介质中,包括若干指令用以使得一台计算机设备(可为个人计算机、服务器或者网络设备等)执行本发明各个实施例所述方法的全部或部分步骤。而前述的存储介质包括:U盘、只读存储器(ROM,Read-Only Memory)、随机存取存储器(RAM,Random Access Memory)、移动硬盘、磁碟或者光盘等各种可以存储程序代码的介质。
以上所述仅是本发明的优选实施方式,应当指出,对于本技术领域的普通技术人员来说,在不脱离本发明原理的前提下,还可以做出若干改进和润饰,这些改进和润饰也应视为本发明的保护范围。
Claims (18)
- 一种微电网系统的控制方法,其特征在于,所述微电网系统包括:微源设备、储能设备、用电负载和微网控制设备,其中,所述方法包括:通过微网控制设备检测所述微电网系统的运行参数,其中,所述运行参数至少包括:所述微源设备的实时发电功率PW0、所述用电负载中已开启负载的实时用电功率PZ、所述储能设备的最大充放电额定功率PE;根据检测到的所述运行参数,对所述微电网系统进行功率平衡和/或能量平衡控制。
- 根据权利要求1所述的方法,其特征在于,根据检测到的所述运行参数,对所述微电网系统进行功率平衡控制包括:根据检测到的所述运行参数,判断所述微源设备的实时发电功率PW0是否小于所述用电负载中已开启负载的实时用电功率PZ;若小于,则控制所述储能设备以预定放电功率PF进行放电,其中,PF=PZ-PW0;若大于,则控制所述储能设备以预定充电功率PC进行充电,其中,PC=PW0-PZ。
- 根据权利要求2所述的方法,其特征在于,在控制所述储能设备以预定放电功率PF进行放电包括:判断所述预定放电功率PF是否大于所述储能设备的最大充放电额定功率PE;若大于,则停止为所述已开启负载中的低优先级负载供电。
- 根据权利要求2所述的方法,其特征在于,在控制所述储能设备以预定充电功率PC进行充电包括:判断所述预定充电功率PC是否大于所述储能设备的最大充放电额定功率PE;若大于,则向所述微源设备发送第一功率限制指令,以限制所述微源设备以第一预定实时限制功率PW1进行发电,其中,PW1=PW0-PZ-PE。
- 根据权利要求4所述的方法,其特征在于,在判断所述预定充电功率PC是否大于所述储能设备的最大充放电额定功率PE之后,所述方法还包括:若判断出所述预定充电功率PC小于所述储能设备的最大充放电额定功率PE,则判断所述储能设备的电池容量SOC是否大于预设值;若所述SOC大于所述预设值,则向所述微源设备发送第二功率限制指令,以限制所述微源设备以第二预定实时限制功率PW2进行发电,其中,PW2=PW0-PZ。
- 根据权利要求1所述的方法,其特征在于,根据检测到的所述运行参数,对所述微电网系统进行能量平衡控制包括:根据检测到的所述用电负载中已开启负载的实时用电功率PZ,预测所述已开启负载中指定优先级的负载在第一预设时间段内需要消耗的电量以及所述微源设备在所述第一预设时间段内剩余发电量,得到对应的预测结果;获取所述储能设备当前所剩电量以及所述指定优先级的负载在第二预设时间段内所消耗的电量,得到对应的获取结果;根据所述预测结果和所述获取结果,对所述已开启负载中各优先级负载进行控制,以平衡所述微电网系统的能量。
- 根据权利要求2所述的方法,其特征在于,在根据检测到的所述运行参数,对所述微电网系统进行功率平衡控制之后,所述方法还包括:当PF>0,且PW0+PF≠PZ时,或者当PC>0,且PW0≠PZ+PC时,执行异常告警处理。
- 一种微电网系统的控制装置,其特征在于,所述微电网系统包括:微源设备、储能设备、用电负载和微网控制设备,其中,所述装置包括:检测单元,用于通过微网控制设备检测所述微电网系统的运行参数,其中,所述运行参数至少包括:所述微源设备的实时发电功率PW0、所述用电负载中已开启负载的实时用电功率PZ、所述储能设备的最大充放电额定功率PE;控制单元,用于根据检测到的所述运行参数,对所述微电网系统进行功率平衡和/或能量平衡控制。
- 根据权利要求8所述的装置,其特征在于,所述控制单元包括:判断模块,用于根据检测到的所述运行参数,判断所述微源设备的实时发电功率PW0是否小于所述用电负载中已开启负载的实时用电功率PZ;第一控制模块,用于在判断出所述微源设备的实时发电功率PW0小于所述用电负载中已开启负载的实时用电功率PZ的情况下,控制所述储能设备以预定放电功率PF进行放电,其中,PF=PZ-PW0;第二控制模块,用于在判断出所述微源设备的实时发电功率PW0大于所述用 电负载中已开启负载的实时用电功率PZ的情况下,控制所述储能设备以预定充电功率PC进行充电,其中,PC=PW0-PZ。
- 根据权利要求9所述的装置,其特征在于,所述第一控制模块包括:第一判断子模块,用于判断所述预定放电功率PF是否大于所述储能设备的最大充放电额定功率PE;供电子模块,用于在判断出所述预定放电功率PF大于所述储能设备的最大充放电额定功率PE的情况下,停止为所述已开启负载中的低优先级负载供电。
- 根据权利要求9所述的装置,其特征在于,所述第二控制模块包括:第二判断子模块,用于判断所述预定充电功率PC是否大于所述储能设备的最大充放电额定功率PE;第一发送子模块,用于在判断出所述预定充电功率PC大于所述储能设备的最大充放电额定功率PE的情况下,向所述微源设备发送第一功率限制指令,以限制所述微源设备以第一预定实时限制功率PW1进行发电,其中,PW1=PW0-PZ-PE。
- 根据权利要求11所述的装置,其特征在于,所述装置还包括:第三判断子模块,用于在判断所述预定充电功率PC是否大于所述储能设备的最大充放电额定功率PE之后,且在判断出所述预定充电功率PC小于所述储能设备的最大充放电额定功率PE的情况下,判断所述储能设备的电池容量SOC是否大于预设值;第二发送子模块,用于在所述SOC大于所述预设值的情况下,向所述微源设备发送第二功率限制指令,以限制所述微源设备以第二预定实时限制功率PW2进行发电,其中,PW2=PW0-PZ。
- 根据权利要求8所述的装置,其特征在于,所述控制单元包括:预测模块,用于根据检测到的所述用电负载中已开启负载的实时用电功率PZ,预测所述已开启负载中指定优先级的负载在第一预设时间段内需要消耗的电量以及所述微源设备在所述第一预设时间段内剩余发电量,得到对应的预测结果;获取模块,用于获取所述储能设备当前所剩电量以及所述指定优先级的负载在第二预设时间段内所消耗的电量,得到对应的获取结果;第三控制模块,用于根据所述预测结果和所述获取结果,对所述已开启负载中各优先级负载进行控制,以平衡所述微电网系统的能量。
- 根据权利要求9所述的装置,其特征在于,所述装置还包括:执行单元,用于在根据检测到的所述运行参数,对所述微电网系统进行功率平衡控制之后,当PF>0,且PW0+PF≠PZ时,或者当PC>0,且PW0≠PZ+PC时,执行异常告警处理。
- 一种存储介质,其特征在于,所述存储介质包括存储的程序,其中,所述程序执行权利要求1至7中任意一项所述的微电网系统的控制方法。
- 一种处理器,其特征在于,所述处理器用于运行程序,其中,所述程序运行时执行权利要求1至7中任意一项所述的微电网系统的控制方法。
- 一种终端,其特征在于,微电网系统包括:微源设备、储能设备、用电负载和微网控制设备,其中,所述终端包括:检测单元,用于通过微网控制设备检测所述微电网系统的运行参数,其中,所述运行参数至少包括:所述微源设备的实时发电功率PW0、所述用电负载中已开启负载的实时用电功率PZ、所述储能设备的最大充放电额定功率PE;控制单元,用于根据检测到的所述运行参数,对所述微电网系统进行功率平衡和/或能量平衡控制;处理器,所述处理器运行程序,其中,所述程序运行时对于从所述检测单元和所述控制单元输出的数据执行如下处理步骤:通过微网控制设备检测所述微电网系统的运行参数,其中,所述运行参数至少包括:所述微源设备的实时发电功率PW0、所述用电负载中已开启负载的实时用电功率PZ、所述储能设备的最大充放电额定功率PE;根据检测到的所述运行参数,对所述微电网系统进行功率平衡和/或能量平衡控制。
- 一种终端,其特征在于,微电网系统包括:微源设备、储能设备、用电负载和微网控制设备,其中,所述终端包括:检测单元,用于通过微网控制设备检测所述微电网系统的运行参数,其中,所述运行参数至少包括:所述微源设备的实时发电功率PW0、所述用电负载中已开启负载的实时用电功率PZ、所述储能设备的最大充放电额定功率PE;控制单元,用于根据检测到的所述运行参数,对所述微电网系统进行功率平衡和/或能量平衡控制;存储介质,用于存储程序,其中,所述程序在运行时对于从所述检测单元和所述控制单元输出的数据执行如下处理步骤:通过微网控制设备检测所述微电网系统的运行参数,其中,所述运行参数至少包括:所述微源设备的实时发电功率PW0、所述用电负载中已开启负载的实时用电功率PZ、所述储能设备的最大充放电额定功率PE;根据检测到的所述运行参数,对所述微电网系统进行功率平衡和/或能量平衡控制。
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| CN115514012A (zh) * | 2022-11-20 | 2022-12-23 | 永联智慧能源科技(常熟)有限公司 | 孤岛微网系统的控制方法、装置及电子设备 |
| CN115514012B (zh) * | 2022-11-20 | 2023-03-03 | 永联智慧能源科技(常熟)有限公司 | 孤岛微网系统的控制方法、装置及电子设备 |
| CN116031916B (zh) * | 2022-12-29 | 2023-09-12 | 山西省能源互联网研究院 | 储能控制系统及方法 |
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| CN118508426A (zh) * | 2024-05-29 | 2024-08-16 | 山东浪潮智慧能源科技有限公司 | 一种光储充放绿色电能管理系统及方法 |
| CN119051162A (zh) * | 2024-10-28 | 2024-11-29 | 宁波德业储能科技有限公司 | 智能微电网的能量调度方法及系统 |
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