CN110855006B - Distributed optical storage and charging regulation and control system based on edge internet of things agent - Google Patents
Distributed optical storage and charging regulation and control system based on edge internet of things agent Download PDFInfo
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- CN110855006B CN110855006B CN201911216144.XA CN201911216144A CN110855006B CN 110855006 B CN110855006 B CN 110855006B CN 201911216144 A CN201911216144 A CN 201911216144A CN 110855006 B CN110855006 B CN 110855006B
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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
- H02J3/32—Arrangements for balancing of the load in a network by storage of energy using batteries with converting means
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/56—Power conversion systems, e.g. maximum power point trackers
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E70/00—Other energy conversion or management systems reducing GHG emissions
- Y02E70/30—Systems combining energy storage with energy generation of non-fossil origin
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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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/16—Information or communication technologies improving the operation of electric vehicles
- Y02T90/167—Systems integrating technologies related to power network operation and communication or information technologies for supporting the interoperability of electric or hybrid vehicles, i.e. smartgrids as interface for battery charging of electric vehicles [EV] or hybrid vehicles [HEV]
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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
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/12—Monitoring or controlling equipment for energy generation units, e.g. distributed energy generation [DER] or load-side generation
- Y04S10/126—Monitoring or controlling equipment for energy generation units, e.g. distributed energy generation [DER] or load-side generation the energy generation units being or involving electric vehicles [EV] or hybrid vehicles [HEV], i.e. power aggregation of EV or HEV, vehicle to grid arrangements [V2G]
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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
- Y04S30/00—Systems supporting specific end-user applications in the sector of transportation
- Y04S30/10—Systems supporting the interoperability of electric or hybrid vehicles
- Y04S30/12—Remote or cooperative charging
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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
- Y04S30/00—Systems supporting specific end-user applications in the sector of transportation
- Y04S30/10—Systems supporting the interoperability of electric or hybrid vehicles
- Y04S30/14—Details associated with the interoperability, e.g. vehicle recognition, authentication, identification or billing
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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
- Y04S40/128—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 involving the use of Internet protocol
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention belongs to the technical field of electric power Internet of things, and particularly relates to a distributed optical storage and charging regulation and control system based on an edge internet of things proxy. The system comprises an area energy management and control device, an edge internet of things proxy device and an optical storage and filling device, wherein the area energy management and control device is connected with the edge internet of things proxy devices arranged in different areas, and each edge internet of things proxy device is connected with the optical storage and filling device. According to the system, the edge internet of things proxy device is added on site, photovoltaic power generation power, residual capacity and discharge power of energy storage equipment and charging equipment required power can be obtained through calculation according to operation parameters sent by the optical storage and charging device, and therefore power of the optical storage and charging equipment is allocated according to the power. The edge internet of things proxy device bears the work which is originally done by the regional energy management and control device, reduces the burden of communication caused by transmitting mass data to the regional energy management and control device, and effectively improves the data processing efficiency and the regulation timeliness.
Description
Technical Field
The invention belongs to the technical field of electric power Internet of things, and particularly relates to a distributed optical storage and charging regulation and control system based on an edge internet of things proxy.
Background
With the large-scale access of distributed photovoltaic power generation, a user side energy storage system and an electric vehicle charging system to an urban power distribution network, effective interactive control of grid-connected power is particularly important. The traditional control method is to establish a regional energy management and control system, widely access photovoltaic power generation, energy storage and charging systems distributed in a region, and directly send control instructions through a regional energy management and control device to realize control over a plurality of devices in a limited region.
Along with the rapid increase of the construction scale and the quantity of distributed photovoltaics, energy storage, charging piles and the like, the systems can generate massive data, and the massive data are sent to the regional energy management and control device to form a difficult problem, so that the network bandwidth is a serious test, and in addition, the massive data bring great challenges to the processing speed and the analysis capability of the regional energy management and control device.
Disclosure of Invention
The invention provides a distributed optical storage and charging regulation and control system based on an edge internet of things agent, which is used for solving the problems of large processing pressure of an area energy management and control device and large network transmission pressure caused by the need of processing of the area energy management and control device for mass data.
In order to solve the technical problems, the technical scheme of the invention comprises the following steps:
the invention discloses a distributed optical storage and charging regulation and control system based on an edge internet of things proxy, which comprises an area energy management and control device, an edge internet of things proxy device and an optical storage and charging device, wherein the optical storage and charging device comprises photovoltaic power generation equipment, energy storage equipment, charging equipment and grid-connected access point measurement and control equipment, and the charging equipment is used for charging an electric vehicle; the regional energy management and control device is connected with edge internet of things proxy devices arranged in different regions, and each edge internet of things proxy device is connected with an optical storage and filling device; the photovoltaic power generation equipment, the energy storage equipment, the charging equipment and the grid-connected access point measurement and control equipment all transmit the operation parameters to the corresponding edge internet-of-things proxy device; the edge internet of things proxy device calculates photovoltaic power generation power according to the operation parameters of the photovoltaic power generation equipment, calculates residual capacity and discharge power of the energy storage equipment according to the operation parameters of the energy storage equipment, and calculates charging equipment required power according to the operation parameters of the charging equipment; and controlling the electric energy flow direction of the photovoltaic power generation equipment, the electric energy flow direction of the energy storage equipment and the electric energy flow direction of the power grid according to the photovoltaic power generation power, the residual capacity and discharge power of the energy storage equipment and the charging equipment required power so as to maximize the utilization of the photovoltaic power generation power while meeting the charging equipment required power.
The beneficial effects of the technical scheme are as follows: according to the system, the edge internet of things proxy device is added on site, and can calculate and obtain photovoltaic power generation power, residual capacity and discharge power of energy storage equipment and charging equipment required power according to operation parameters sent by the optical storage and charging device, so that the power of the optical storage and charging equipment is allocated according to the power, and photovoltaic power generation power is utilized to the greatest extent while the charging equipment required power is met. The edge internet of things proxy device bears the work originally done by the regional energy management and control device, reduces the burden of communication caused by transmitting mass data to the regional energy management and control device, effectively reduces the delay of processing and control caused by data processing by the regional energy management and control device, and effectively improves the data processing efficiency and the regulation timeliness.
Further, the edge internet of things proxy device is configured to control the electric energy flow direction of the photovoltaic power generation device, the electric energy flow direction of the energy storage device and the electric energy flow direction of the power grid according to the photovoltaic power generation power, the residual capacity and the discharge power of the energy storage device and the charging device demand power, and the edge internet of things proxy device comprises: the edge internet of things proxy device judges whether photovoltaic power generation power is greater than charging equipment required power or not, and if the photovoltaic power generation power is greater than the charging equipment required power, judges whether the energy storage equipment is in a full-power state according to the residual capacity of the energy storage equipment: and if the power supply state is not in the full power state, issuing a control instruction to the photovoltaic equipment to enable the energy storage photovoltaic equipment to supply power to the charging equipment and the energy storage equipment simultaneously, otherwise, issuing a control instruction to the photovoltaic equipment to enable the energy storage photovoltaic equipment to supply power to the charging equipment and the power grid simultaneously.
Further, if the photovoltaic power generation power is smaller than or equal to the charging equipment demand power, judging whether the energy storage equipment and the photovoltaic power generation equipment can meet the charging equipment demand power according to the residual capacity and the discharging power of the energy storage equipment, if so, issuing a control instruction to the photovoltaic power generation equipment and the energy storage equipment so that the photovoltaic power generation equipment and the energy storage equipment supply power to the charging equipment simultaneously, and if not, issuing a control instruction to the photovoltaic power generation equipment, the energy storage equipment and the grid-connected access point measurement and control equipment so that the photovoltaic power generation equipment, the energy storage equipment and the power grid supply power to the charging equipment simultaneously.
Furthermore, in order to alleviate the electricity consumption peak, the edge internet of things proxy device calculates to obtain the grid-connected access point distribution transformer load rate according to the operation parameters of the grid-connected access point measurement and control equipment, judges whether the power grid is in the electricity consumption peak according to the grid-connected access point distribution transformer load rate, and issues a control instruction to the charging equipment when judging that the power grid is in the electricity consumption peak so as to enable the charging equipment to increase the charging price.
Furthermore, in order to relieve the pressure of the regional energy management and control device for processing the mass data, the edge internet of things proxy device also preprocesses various data sent by the optical storage and filling device, and sends the preprocessed data to the regional energy management and control device.
Further, the photovoltaic power generation equipment and the edge internet of things proxy device are communicated through a serial port.
Further, the energy storage equipment and the edge internet of things proxy device are communicated through a serial port.
Further, the charging equipment and the edge internet of things proxy device are in wireless communication.
Furthermore, the grid-connected access point measurement and control equipment and the edge internet of things proxy device are communicated through the Ethernet.
Drawings
FIG. 1 is a block diagram of a distributed optical storage and charging control system based on an edge internet of things proxy according to the present invention;
fig. 2 is a schematic diagram of control for implementing power joint regulation of a distributed optical storage and charging system according to the present invention.
Detailed Description
System embodiment:
the embodiment provides a distributed optical storage and charging regulation and control system based on an edge internet of things proxy, which comprises an area energy management and control device, a plurality of edge internet of things proxy devices and a plurality of optical storage and charging devices as shown in fig. 1.
Each optical storage and charging device comprises photovoltaic power generation equipment, energy storage equipment, charging equipment and grid-connected access point measurement and control equipment, wherein the charging equipment is equipment for charging an electric vehicle.
The regional energy management and control device is connected with edge internet of things proxy devices arranged in different regions, and each edge internet of things proxy device is connected with one optical storage and filling device, namely, the edge internet of things proxy device is connected with controllers of all devices in the optical storage and filling device.
The photovoltaic power generation equipment and the energy storage equipment are connected with the edge internet of things proxy device through an RS485 serial communication interface and a Modbus-RTU communication protocol, the charging equipment is connected with the edge internet of things proxy device through a wireless communication interface and a Zigbee (LoRa) communication protocol, and the grid-connected access point measurement and control device is connected with the edge internet of things proxy device through an Ethernet communication interface and a DL/T104 communication protocol. The uplink communication is connected with the photoelectric switch through the optical fiber by taking the communication transmission distance into consideration, so that the data interaction with the regional energy management and control device is realized.
The things that the edge internet of things proxy device does fall into two major parts: the method is used for realizing the preprocessing of the transmission data of the optical storage and charging device, namely realizing the information access of the photovoltaic power generation equipment, the energy storage equipment, the charging equipment and the grid-connected access point measurement and control equipment which are accessed from the lower layer, the system has the functions of communication protocol conversion, data acquisition, information classification and arrangement and the like, and can send the arranged data to the regional energy management and control device; and secondly, receiving a regulation and control instruction of the regional energy management and control device, and regulating and controlling the power of the light storage and charging device so as to maximize the utilization of the photovoltaic power generation power while meeting the power demand of the charging equipment.
The following is a detailed description.
The photovoltaic power generation equipment transmits collected operation data of inverter operation parameters (including array voltage, array current, three-phase voltage, three-phase current, frequency, inverter built-in temperature, operation state and the like), illuminance, wind speed, environment temperature and the like to the edge internet of things proxy device through an RS485 bus; the energy storage equipment sends the collected information such as the charging and discharging power of the energy storage PCS, the running state of the energy storage unit, the allowable charging capacity and the like to the edge internet of things proxy device through an RS485 bus by collecting the information such as the battery core, the battery module, the battery system voltage, the current, the temperature, the insulation condition and the like of the BMS; the charging equipment transmits the collected operation data such as the current, voltage, power, electric quantity, charging time, current charging mode, charger fault state and the like of the charging station to the edge internet of things proxy device in a wireless communication mode; the grid-connected access point measurement and control equipment transmits the collected operation parameters (including three-phase voltage, three-phase current, frequency, power, switching state and other operation data) of the measurement and control device to the edge internet of things proxy device in an Ethernet communication mode.
The edge internet of things proxy device stores, analyzes and sorts various information sent by the received photovoltaic power generation equipment, and specifically comprises the following steps: and (3) screening the effectiveness of data mutation, communication interference, continuity and the like, classifying according to information types such as remote signaling, telemetry and events, sorting according to a data priority and unified uploading model, and performing data interaction with an upper-level regional energy management and control device according to a DL/T104 communication protocol in a fiber Ethernet wired communication mode.
Moreover, as shown in fig. 2, the edge internet of things proxy device can calculate and obtain photovoltaic power generation power according to the operation parameters of the photovoltaic power generation equipment, calculate and obtain residual capacity and discharge power of the energy storage equipment according to the operation parameters of the energy storage equipment, calculate and obtain charging equipment required power according to the operation parameters of the charging equipment, calculate and obtain grid-connected access point distribution and transformation load rate according to the operation parameters of the grid-connected access point measurement and control equipment, thereby controlling and adjusting the power generation power of an inverter in the photovoltaic power generation equipment according to the quantity and the charge and discharge power of PCS in the energy storage equipment and the charging power of an electric automobile according to the quantity and the control strategy, realizing the combined control of the photovoltaic power storage and the charge power, and mainly representing the functions of the energy storage equipment such as peak clipping and valley filling control, the power maximization of the photovoltaic power generation equipment, the ordered control of the charging of the electric automobile and the like. The method specifically comprises the following steps:
1. and controlling the photovoltaic power generation equipment to charge the electric automobile by the charging equipment preferentially.
2. When the generated power of the photovoltaic discharge equipment is detected to be larger than the power of the charging equipment, detecting the state of the energy storage equipment at the moment: the edge internet of things proxy device controls the photovoltaic power generation device to supply power to the charging device and the energy storage device at the same time; when the energy storage equipment is in a full charge state and cannot completely consume the power generated by the photovoltaic power generation equipment, the photovoltaic power generation equipment is controlled to supply power to the charging equipment and simultaneously transmit power to the power grid.
3. When the edge internet of things proxy device detects that the power of the photovoltaic power generation equipment is smaller than that of the charging equipment, the energy storage equipment is scheduled to discharge to the charging equipment preferentially, namely the photovoltaic power generation equipment and the energy storage equipment supply power to the charging equipment at the same time; if the residual capacity and the charging power of the energy storage equipment do not meet the charging requirement of the charging equipment, the electric automobile connected with the charging equipment takes electricity from the power grid, namely the photovoltaic power generation equipment, the energy storage equipment and the power grid supply power to the charging equipment at the same time.
4. The edge internet of things proxy device judges whether the power grid is in a power consumption peak according to the grid-connected access point distribution transformer load rate, dynamically issues preset peak-to-valley electricity price to a charging equipment operation control interface in real time, and guides the electric automobile to stagger peak power consumption by changing the charging electricity price level so as to relieve the power consumption peak.
Meanwhile, the edge internet of things proxy device also receives a grid-connected point power control instruction issued by the regional energy light control device, after receiving the instruction, the grid-connected point power control instruction is controlled in a target interval by dispatching the photovoltaic equipment generating power, the energy storage equipment charging and discharging power and the electric automobile charging power to preferentially meet the grid-connected point power requirement, when the unified grid-connected access point power joint control of the distributed optical storage and charging device does not meet the grid-connected point power control requirement, the regional energy control device can be fed back in time, and after receiving feedback information, the regional energy control device completes adjustment of the grid-connected point power control instruction and issues again.
Claims (9)
1. The distributed optical storage and charging regulation and control system based on the edge internet of things proxy is characterized by comprising an area energy management and control device, an edge internet of things proxy device and an optical storage and charging device, wherein the optical storage and charging device comprises photovoltaic power generation equipment, energy storage equipment, charging equipment and grid-connected access point measurement and control equipment, and the charging equipment is used for charging an electric vehicle; the regional energy management and control device is connected with edge internet of things proxy devices arranged in different regions, and each edge internet of things proxy device is connected with an optical storage and filling device;
the photovoltaic power generation equipment, the energy storage equipment, the charging equipment and the grid-connected access point measurement and control equipment all transmit the operation parameters to the corresponding edge internet-of-things proxy device;
the edge internet of things proxy device calculates photovoltaic power generation power according to the operation parameters of the photovoltaic power generation equipment, calculates residual capacity and discharge power of the energy storage equipment according to the operation parameters of the energy storage equipment, and calculates charging equipment required power according to the operation parameters of the charging equipment; the edge internet of things proxy device controls the electric energy flow direction of the photovoltaic power generation equipment, the electric energy flow direction of the energy storage equipment and the electric energy flow direction of the power grid according to the photovoltaic power generation power, the residual capacity and discharge power of the energy storage equipment and the charging equipment demand power, so that the photovoltaic power generation power is utilized to the maximum extent while the charging equipment demand power is met.
2. The distributed optical storage and charging regulation system based on the edge internet of things proxy according to claim 1, wherein the controlling the electric energy flow direction of the photovoltaic power generation device, the electric energy flow direction of the energy storage device and the electric energy flow direction of the electric network according to the photovoltaic power generation power, the residual capacity and the discharging power of the energy storage device and the charging device demand power by the edge internet of things proxy device comprises:
the edge internet of things proxy device judges whether photovoltaic power generation power is greater than charging equipment required power or not, and if the photovoltaic power generation power is greater than the charging equipment required power, judges whether the energy storage equipment is in a full-power state according to the residual capacity of the energy storage equipment: if the power supply is not in the full power state, issuing a control instruction to enable the photovoltaic power generation equipment to supply power to the charging equipment and the energy storage equipment simultaneously, otherwise issuing a control instruction to enable the photovoltaic power generation equipment to supply power to the charging equipment and the power grid simultaneously.
3. The distributed optical storage and charging regulation system based on the edge internet of things agent according to claim 2, wherein if the photovoltaic power generation power is smaller than or equal to the charging equipment required power, whether the charging equipment required power can be met by the energy storage equipment and the photovoltaic power generation equipment is judged according to the residual capacity and the discharging power of the energy storage equipment, if so, a control command is issued to the photovoltaic power generation equipment and the energy storage equipment so that the photovoltaic power generation equipment and the energy storage equipment can supply power to the charging equipment at the same time, and if not, a control command is issued to the photovoltaic power generation equipment, the energy storage equipment and the grid-connected access point measurement and control equipment so that the photovoltaic power generation equipment, the energy storage equipment and the power grid can supply power to the charging equipment at the same time.
4. The distributed optical storage and charging regulation system based on the edge internet of things proxy according to claim 1, wherein the edge internet of things proxy device further calculates to obtain a grid-connected access point distribution transformer load rate according to the operation parameters of the grid-connected access point measurement and control equipment, judges whether a power grid is in a power utilization peak according to the grid-connected access point distribution transformer load rate, and issues a control instruction to the charging equipment when judging that the power utilization peak is in the power utilization peak so as to enable the charging equipment to increase the charging price.
5. The distributed optical storage and charging control system based on the edge internet of things proxy as claimed in claim 1, wherein the edge internet of things proxy device further performs preprocessing on various data sent by the optical storage and charging device, and sends the preprocessed data to the regional energy management and control device.
6. The distributed optical storage and charging control system based on the edge internet of things proxy according to any one of claims 1 to 5, wherein the photovoltaic power generation equipment and the edge internet of things proxy device are in serial communication.
7. The distributed optical storage and charging control system based on the edge internet of things proxy according to any one of claims 1 to 5, wherein the energy storage equipment and the edge internet of things proxy device communicate through a serial port.
8. The distributed optical storage and charging control system based on the edge internet of things proxy according to any one of claims 1 to 5, wherein the charging equipment and the edge internet of things proxy device communicate wirelessly.
9. The distributed optical storage and charging control system based on the edge internet of things proxy according to any one of claims 1 to 5, wherein the grid-connected access point measurement and control equipment and the edge internet of things proxy device communicate through ethernet.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911216144.XA CN110855006B (en) | 2019-12-02 | 2019-12-02 | Distributed optical storage and charging regulation and control system based on edge internet of things agent |
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| CN201911216144.XA CN110855006B (en) | 2019-12-02 | 2019-12-02 | Distributed optical storage and charging regulation and control system based on edge internet of things agent |
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| CN110855006A CN110855006A (en) | 2020-02-28 |
| CN110855006B true CN110855006B (en) | 2023-08-08 |
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| CN113489007A (en) * | 2021-08-20 | 2021-10-08 | 国网福建省电力有限公司电力科学研究院 | Photovoltaic output prediction method and system based on edge Internet of things proxy |
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