CN110855006A - Distributed light storage and charging regulation and control system based on edge Internet of things agent - Google Patents
Distributed light storage and charging regulation and control system based on edge Internet of things agent Download PDFInfo
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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
Abstract
The invention belongs to the technical field of power Internet of things, and particularly relates to a distributed light storage and charging regulation and control system based on an edge Internet of things agent. The system comprises a regional energy management and control device, a marginal Internet of things agent device and an optical storage and charging device, wherein the regional energy management and control device is connected with the marginal Internet of things agent devices arranged in different regions, and each marginal Internet of things agent device is connected with one optical storage and charging device. The system is added with the edge Internet of things agent device in a local mode, and the photovoltaic power generation power, the residual capacity and the discharging power of the energy storage equipment and the required power of the charging equipment can be obtained through calculation according to the running parameters sent by the light storage and charging device, so that the power of the light storage and charging equipment is allocated according to the power. The edge internet of things agent 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, and effectively improves the data processing efficiency and the regulation and control timeliness.
Description
Technical Field
The invention belongs to the technical field of power Internet of things, and particularly relates to a distributed light storage and charging regulation and control system based on an edge Internet of things agent.
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 an area-level energy management and control system, widely access a photovoltaic power generation, energy storage and charging system distributed in an area, and directly send a control instruction through an area energy management and control device to realize control over a plurality of devices in a limited area.
With the rapid increase of the construction scale and the number of distributed photovoltaic systems, energy storage systems, charging piles and the like, the systems can generate massive data, and the massive data are difficult to send to a regional energy management and control device, which is a serious test for network bandwidth, and in addition, the massive data bring huge 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 light 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 a regional energy management and control device and large network transmission pressure caused by the fact that massive data need to be processed by the regional energy management and control device.
In order to solve the technical problem, the technical scheme of the invention comprises the following steps:
the invention discloses a distributed light storage and charging regulation and control system based on a border Internet of things agent, which comprises a regional energy management and control device, a border Internet of things agent device and a light storage and charging device, wherein the light 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 agent devices arranged in different regions, and each edge Internet of things agent device is connected with one optical storage and charging device; the photovoltaic power generation equipment, the energy storage equipment, the charging equipment and the grid-connected access point measurement and control equipment all send operation parameters thereof to corresponding edge Internet of things agent devices; the edge Internet of things agent device calculates according to the operating parameters of the photovoltaic power generation equipment to obtain photovoltaic power generation power, calculates according to the operating parameters of the energy storage equipment to obtain the residual capacity and the discharge power of the energy storage equipment, and calculates according to the operating parameters of the charging equipment to obtain the required power of the charging equipment; according to the photovoltaic power generation power, the residual capacity and the discharging power of the energy storage device and the required power of the charging device, 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 are controlled, so that the photovoltaic power generation power is maximally utilized while the required power of the charging device is met.
The beneficial effects of the above technical scheme are: the system is added with the edge Internet of things agent device in a local mode, the edge Internet of things agent device can calculate the photovoltaic power generation power, the residual capacity and the discharging power of the energy storage equipment and the required power of the charging equipment according to the running parameters sent by the light storage and charging device, and therefore the power of the light storage and charging equipment is allocated according to the power, the required power of the charging equipment is met, and meanwhile the photovoltaic power generation power is utilized to the maximum. The edge internet of things agent device bears the original work 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 processing and control delay caused by data processing of the regional energy management and control device, and effectively improves the data processing efficiency and the regulation and control timeliness.
Further, 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 power grid according to the photovoltaic power generation power, the residual capacity and the discharging power of the energy storage device and the required power of the charging device by the edge internet of things agent device comprises: the edge Internet of things agent device judges whether the photovoltaic power generation power is greater than the required power of the charging equipment, and if the photovoltaic power generation power is greater than the required power of the charging equipment, whether the energy storage equipment is in a full power state is judged according to the residual capacity of the energy storage equipment: and if the power supply is not in the full power state, issuing a control instruction to the photovoltaic equipment to enable the energy storage photovoltaic equipment to simultaneously supply power to the charging equipment and the energy storage equipment, otherwise, issuing the control instruction to the photovoltaic equipment to enable the energy storage photovoltaic equipment to simultaneously supply power to the charging equipment and the power grid.
Further, if the photovoltaic power generation power is smaller than or equal to the power required by the charging equipment, whether the energy storage equipment and the photovoltaic power generation equipment can meet the power required by the charging equipment is judged according to the residual capacity and the discharge power of the energy storage equipment, if yes, a control command is issued to the photovoltaic power generation equipment and the energy storage equipment to enable the photovoltaic power generation equipment and the energy storage equipment to simultaneously supply power to the charging equipment, 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 to enable the photovoltaic power generation equipment, the energy storage equipment and the power grid to simultaneously supply power.
Furthermore, in order to relieve the power consumption peak, the edge internet of things agent device calculates the distribution and transformation load rate of the grid-connected access point according to the operation parameters of the grid-connected access point measurement and control equipment, judges whether the power grid is in the power consumption peak according to the distribution and transformation load rate of the grid-connected access point, and sends a control instruction to the charging equipment when the power grid is judged to be in the power consumption peak so as to improve the charging price of the charging equipment.
Furthermore, in order to relieve the pressure of the regional energy management and control device on processing mass data, the edge internet of things agent device also preprocesses various data sent by the optical storage and charging 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 agent device are communicated through a serial port.
Further, the energy storage device is in serial port communication with the edge internet of things agent device.
Further, the charging equipment and the edge internet of things agent device communicate wirelessly.
Further, the grid-connected access point measurement and control equipment and the edge internet of things agent device communicate through the Ethernet.
Drawings
FIG. 1 is an architecture diagram of a distributed light storage and charging control system based on an edge Internet of things agent according to the present invention;
fig. 2 is a control schematic diagram for implementing the power joint regulation of the distributed optical storage and charging system according to the present invention.
Detailed Description
The embodiment of the system is as follows:
the embodiment provides a distributed optical storage and charging regulation and control system based on an edge internet of things agent, and as shown in fig. 1, the system includes a regional energy management and control device, a plurality of edge internet of things agent devices, and a plurality of optical storage and charging devices.
Each light 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 the electric vehicle.
The regional energy management and control device is connected with edge Internet of things agent devices arranged in different regions, each edge Internet of things agent device is connected with one optical storage and charging device, and the edge Internet of things agent devices are connected with controllers of all devices in the optical storage and charging devices.
The photovoltaic power generation equipment and the energy storage equipment are both connected into the edge Internet of things agent device through an RS485 serial communication interface and a Modbus-RTU communication protocol, the charging equipment is connected into the edge Internet of things agent device through a wireless communication interface and a Zigbee (LoRa) communication protocol, and the grid-connected access point measurement and control device is connected into the edge Internet of things agent device through an Ethernet communication interface and a DL/T104 communication protocol. The edge Internet of things agent device realizes data interaction with the regional energy management and control device through an Ethernet communication interface and a DL/T104 communication protocol in an uplink mode, and in addition, in consideration of communication transmission distance, the uplink communication is connected with the photoelectric switch through the optical fiber through the photoelectric conversion device, so that data interaction with the regional energy management and control device is realized.
The things that the edge internet of things agent does are divided into two parts: the system comprises a regional energy management and control device, a photovoltaic power generation device, an energy storage device, a charging device, a grid-connected access point measurement and control device, a communication protocol conversion device, a data acquisition device, a data classification device and the like, wherein the regional energy management and control device is used for preprocessing data transmitted by the photovoltaic power generation device, the energy storage device, the charging device and the grid-connected access point measurement and control device which are connected to a lower layer; 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 meet the power demand of the charging equipment and simultaneously maximally utilize the photovoltaic power generation power.
As described in detail below.
The photovoltaic power generation equipment transmits collected inverter operation parameters (including array voltage, array current, three-phase voltage, three-phase current, frequency, temperature in the inverter, operation state and the like), illuminance, wind speed, environment temperature and other operation data to the edge Internet of things agent device through an RS485 bus; the energy storage equipment acquires information such as the charge-discharge power of the energy storage PCS, the running state of the energy storage unit, the allowable charge capacity and the like, and acquires information such as the voltage, the current, the temperature, the insulation condition and the like of a battery core, a battery module and a battery system of the BMS and sends the information to the edge Internet of things agent device through the RS485 bus; the charging equipment transmits the collected operating data of the charging station, such as current, voltage, power, electric quantity, charging time, current charging mode, charger fault state and the like to the edge Internet of things agent 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 agent device in an Ethernet communication mode.
The edge internet of things agent device stores, analyzes and arranges various information sent by the received photovoltaic power generation equipment, and specifically comprises the following steps: and carrying out effectiveness screening on data mutation, communication interference, continuity and the like, classifying according to information types such as remote signaling, remote measurement, events and the like, sorting according to data priority and a unified uploading model, and carrying out data interaction with a higher-level regional energy management and control device according to a DL/T104 communication protocol in a fiber optic Ethernet wired communication mode.
Moreover, as shown in fig. 2, the edge internet of things agent device can calculate according to the operation parameters of the photovoltaic power generation device to obtain the photovoltaic power generation power, calculate according to the operation parameters of the energy storage device to obtain the residual capacity and the discharge power of the energy storage device, calculate according to the operation parameters of the charging device to obtain the power required by the charging device, calculate according to the operation parameters of the grid-connected access point measurement and control device to obtain the distribution and variation load rate of the grid-connected access point, and thus according to these quantities, control and regulation are performed in cooperation with the regulation and control strategy to regulate the power generation power of the inverter in the photovoltaic power generation device, the charge and discharge power of the PCS in the energy storage device and the charging power of the electric vehicle, so as to realize the joint regulation and control of the optical storage and the charging power, which is. The method specifically comprises the following steps:
1. and controlling the photovoltaic power generation equipment to charge the electric automobile preferentially through the charging equipment.
2. When the generated power of the photovoltaic discharge equipment is detected to be larger than the power of the charging equipment, the state of the energy storage equipment at the moment is detected: the energy storage equipment is not in a full charge state, and the edge Internet of things agent device controls the photovoltaic power generation equipment to supply power to the charging equipment and the energy storage equipment at the same time; when the energy storage equipment is in a full charge state and cannot completely absorb the power generation of the photovoltaic power generation equipment, the photovoltaic power generation equipment is controlled to supply power to the charging equipment and transmit power to a power grid.
3. When the edge Internet of things agent 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 preferentially discharge to the charging equipment, namely the photovoltaic power generation equipment and the energy storage equipment simultaneously supply power to the charging equipment; if the residual capacity and the charging power of the energy storage device do not meet the charging requirement of the charging device, the electric vehicle connected with the charging device gets power from the power grid, that is, the photovoltaic power generation device, the energy storage device and the power grid simultaneously supply power to the charging device.
4. The edge internet of things agent device judges whether the power grid is in a peak power utilization according to the distribution load rate of the grid-connected access point, dynamically and real-timely publishes preset peak-valley power price to a charging equipment operation control interface, and guides the electric automobile to realize peak-to-peak power utilization by changing the charging power price level so as to relieve the peak power utilization.
Meanwhile, the fringe Internet of things agent device also receives a power control command of a grid-connected point issued by the regional energy light control device, after the command is received, the power control command of the grid-connected point is controlled in a target interval by scheduling the power generation power of the photovoltaic equipment, the charge and discharge power of the energy storage equipment and the charging power of the electric vehicle to preferentially meet the power requirement of the grid-connected point, when the unified grid-connected access point power joint control of the distributed light storage device does not meet the power control requirement of the grid-connected point, the regional energy management and control device can feed back the regional energy management and control device in time, and after the regional energy management and control device receives feedback information.
Claims (9)
1. A distributed light storage and charging regulation and control system based on a border Internet of things agent is characterized by comprising a regional energy management and control device, a border Internet of things agent device and a light storage and charging device, wherein the light 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 agent devices arranged in different regions, and each edge Internet of things agent device is connected with one optical storage and charging device;
the photovoltaic power generation equipment, the energy storage equipment, the charging equipment and the grid-connected access point measurement and control equipment all send operation parameters thereof to corresponding edge Internet of things agent devices;
the edge Internet of things agent device calculates according to the operating parameters of the photovoltaic power generation equipment to obtain photovoltaic power generation power, calculates according to the operating parameters of the energy storage equipment to obtain the residual capacity and the discharge power of the energy storage equipment, and calculates according to the operating parameters of the charging equipment to obtain the required power of the charging equipment; according to the photovoltaic power generation power, the residual capacity and the discharging power of the energy storage device and the required power of the charging device, 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 are controlled, so that the photovoltaic power generation power is maximally utilized while the required power of the charging device is met.
2. The distributed light storage and charging regulation and control system based on the edge internet of things agent according to claim 1, wherein the edge internet of things agent 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 the discharging power of the energy storage equipment and the power required by the charging equipment, and comprises the following steps:
the edge Internet of things agent device judges whether the photovoltaic power generation power is greater than the required power of the charging equipment, and if the photovoltaic power generation power is greater than the required power of the charging equipment, whether the energy storage equipment is in a full power state is judged according to the residual capacity of the energy storage equipment: and if the power supply is not in the full power state, issuing a control instruction to the photovoltaic equipment to enable the energy storage photovoltaic equipment to simultaneously supply power to the charging equipment and the energy storage equipment, otherwise, issuing the control instruction to the photovoltaic equipment to enable the energy storage photovoltaic equipment to simultaneously supply power to the charging equipment and the power grid.
3. The distributed light storage and charging regulation and control system based on the edge internet of things agent as claimed in claim 2, wherein if the photovoltaic power generation power is less than or equal to the power demand of the charging device, whether the energy storage device and the photovoltaic power generation device can meet the power demand of the charging device is judged according to the remaining capacity and the discharging power of the energy storage device, if yes, a control command is issued to the photovoltaic power generation device and the energy storage device to enable the photovoltaic power generation device and the energy storage device to simultaneously supply power to the charging device, and if not, a control command is issued to the photovoltaic power generation device, the energy storage device and the grid-connected access point measurement and control device to enable the photovoltaic power generation device, the energy storage device and the grid to.
4. The distributed light storage and charging regulation and control system based on the edge internet of things agent as claimed in claim 1, wherein the edge internet of things agent device further calculates to obtain a grid-connected access point distribution and transformation 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 consumption peak according to the grid-connected access point distribution and transformation load rate, and issues a control instruction to charging equipment to enable the charging equipment to increase the charging price when the power grid is judged to be in the power consumption peak.
5. The distributed light storage and charging control system based on the edge internet of things agent according to claim 1, wherein the edge internet of things agent device further preprocesses various data sent from the light storage and charging device, and sends the preprocessed data to the regional energy management and control device.
6. The distributed light storage and charging regulation and control system based on the edge Internet of things agent as claimed in any one of claims 1 to 5, wherein the photovoltaic power generation equipment is in communication with the edge Internet of things agent device through a serial port.
7. The distributed optical storage and charging regulation and control system based on the edge Internet of things agent as claimed in any one of claims 1 to 5, wherein the energy storage equipment is in communication with the edge Internet of things agent device through a serial port.
8. The distributed light storage and charging regulation and control system based on the edge Internet of things agent as claimed in any one of claims 1 to 5, wherein the charging equipment is in wireless communication with the edge Internet of things agent device.
9. The distributed light storage and charging regulation and control system based on the edge Internet of things agent as claimed in any one of claims 1 to 5, wherein the grid-connected access point measurement and control equipment and the edge Internet of things agent device communicate through Ethernet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| 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 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| 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 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110855006A true CN110855006A (en) | 2020-02-28 |
| CN110855006B CN110855006B (en) | 2023-08-08 |
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