CN113178945A - Distributed photovoltaic power generation control system and method based on cloud edge cooperation - Google Patents

Distributed photovoltaic power generation control system and method based on cloud edge cooperation Download PDF

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Publication number
CN113178945A
CN113178945A CN202010473960.5A CN202010473960A CN113178945A CN 113178945 A CN113178945 A CN 113178945A CN 202010473960 A CN202010473960 A CN 202010473960A CN 113178945 A CN113178945 A CN 113178945A
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China
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control
power generation
photovoltaic power
steady
data
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CN202010473960.5A
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Chinese (zh)
Inventor
孙文文
王伟胜
何国庆
曲春辉
王维洲
刘福潮
何欣
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State Grid Corp of China SGCC
China Electric Power Research Institute Co Ltd CEPRI
State Grid Gansu Electric Power Co Ltd
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State Grid Corp of China SGCC
China Electric Power Research Institute Co Ltd CEPRI
State Grid Gansu Electric Power Co Ltd
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Priority to CN202010473960.5A priority Critical patent/CN113178945A/en
Publication of CN113178945A publication Critical patent/CN113178945A/en
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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
    • H02J13/00006—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
    • H02J13/00016—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using a wired telecommunication network or a data transmission bus
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
    • H02J13/00006—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
    • H02J13/00022—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using wireless data transmission
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
    • Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
    • Y04S40/124—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using wired telecommunication networks or data transmission busses
    • 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
    • Y04S40/126—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using wireless data transmission

Abstract

The invention provides a distributed photovoltaic power generation control system and method based on cloud edge coordination, which comprises the following steps: the network layer is used for accessing and transmitting the data of the sensing layer and the platform layer; the platform layer receives the steady-state regulation and control target, generates a steady-state regulation and control instruction based on the steady-state regulation and control target and sends the steady-state regulation and control instruction to the perception layer; the sensing layer is used for acquiring the operation data of the photovoltaic power generation equipment in real time and carrying out transient regulation and control on photovoltaic power generation; the system also can be used for carrying out steady state regulation and control on photovoltaic power generation based on the steady state regulation and control instruction, the sensing layer is used for carrying out local real-time acquisition, analysis and transient state control on photovoltaic operation data, the response speed of the transient state control of the system is improved, meanwhile, as a large amount of photovoltaic operation data does not need to be uploaded to a data center, the network bandwidth is released, the speed of issuing the steady state control instruction by the platform layer is increased, the steady state control response speed of the system is also improved, the processing capacity and the response speed of the system on the emergency situation of the power grid are improved, and the active support effect on the safe and stable operation of the power grid is achieved.

Description

Distributed photovoltaic power generation control system and method based on cloud edge cooperation
Technical Field
The invention belongs to the technical field of distributed photovoltaic power generation control, and particularly relates to a distributed photovoltaic power generation control system and method based on cloud-edge coordination.
Background
Distributed photovoltaic power generation is one of emerging energy utilization modes, is widely recognized and applied in the world, has economic performance of commercial development, can bring social and environmental benefits, and has good development potential.
At present, distributed photovoltaic power generation control is to send collected data to a data center through a data collection system for operation processing and analysis, then the data center issues an operation instruction to control each terminal device to execute, and even if all devices are in the same area or even the same building, the user request can be realized only if the devices need to communicate with the data center. In the existing photovoltaic power generation control process, a large amount of collected original data need to be transmitted to a data center for analysis and processing, the requirements on network bandwidth and storage capacity are high, meanwhile, a small processing load is brought to the data center, the situation that a network is delayed or even unavailable is easily caused, further, the regulation and control response of a photovoltaic power generation system is delayed or even unavailable, and the safety and stability of power grid operation are directly threatened. Therefore, how to solve the above problems in the prior art is a problem to be solved by those skilled in the art.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides a distributed photovoltaic power generation control system based on cloud edge coordination, which comprises:
the network layer is used for accessing and transmitting data of the sensing layer and the platform layer;
the platform layer is used for receiving a steady-state regulation and control target of the dispatching center, generating a steady-state regulation and control instruction based on the steady-state regulation and control target and transmitting the steady-state regulation and control instruction to the perception layer through the network layer;
the sensing layer is positioned on the side of the inverter and used for acquiring the operation data of the photovoltaic power generation equipment and performing transient regulation and control on the output of the photovoltaic power generation equipment based on the operation data; and the system is also used for performing steady state regulation and control on the output of the photovoltaic power generation equipment based on a steady state regulation and control instruction issued by the platform layer.
Preferably, the sensing layer comprises a plurality of internet of things control devices; and each Internet of things device is connected with one photovoltaic power generation device.
Preferably, the internet of things control device includes:
the data acquisition module is used for acquiring the operation data of the photovoltaic power generation equipment connected with the data acquisition module;
the calculation analysis module is used for performing analysis calculation based on the operation data acquired by the data acquisition module, generating a transient regulation and control instruction and performing transient regulation and control on the output of the photovoltaic power generation equipment connected with the transient regulation and control instruction;
and the data downloading module is used for receiving the steady-state regulation and control instruction issued by the platform layer, issuing the steady-state regulation and control instruction to the photovoltaic power generation equipment connected with the data downloading module, and performing steady-state regulation and control on the output of the photovoltaic power generation equipment connected with the data downloading module.
Preferably, the platform layer further comprises a running monitoring module; the Internet of things control device also comprises a data uploading module;
the data uploading module is used for uploading set running data to the platform layer through the network layer;
and the operation monitoring module is used for monitoring operation based on the set operation data uploaded by the data uploading module.
Preferably, the platform layer further comprises a power prediction module;
the power prediction module is used for performing power prediction based on the set operation data uploaded by the data uploading module and uploading the power prediction data based on the requirement of the dispatching center.
Preferably, the internet of things control device further comprises a data encryption module; and the data encryption module is used for encrypting the set operation data before uploading.
Based on the same concept, the invention also provides a distributed photovoltaic power generation control method based on cloud edge cooperation, which comprises the following steps:
the method comprises the steps that a perception layer collects operation data of photovoltaic power generation equipment, and transient regulation and control are carried out on the output of the photovoltaic power generation equipment based on the operation data; the sensing layer is positioned on the inverter side;
the platform layer receives a steady-state regulation and control target of the dispatching center, generates a steady-state regulation and control instruction based on the steady-state regulation and control target and sends the instruction to the perception layer through the network layer;
and the sensing layer performs stable state regulation and control on the output of the photovoltaic power generation equipment based on a stable state regulation and control instruction issued by the platform layer.
Preferably, the sensing layer collects the operation data of the photovoltaic power generation equipment directly connected with the internet of things device through a plurality of internal internet of things control devices.
Preferably, carry out transient state control and steady state control through thing networking device to the output of the photovoltaic power generation equipment of being connected with thing networking device, include:
collecting operation data of photovoltaic power generation equipment connected with the internet of things device through the internet of things device;
analyzing and calculating based on the collected operation data to generate a transient regulation and control instruction, and performing transient regulation and control on the output of the photovoltaic power generation equipment connected with the transient regulation and control instruction;
and receiving the steady-state regulation and control instruction issued by the platform layer through the Internet of things device, issuing the steady-state regulation and control instruction to the photovoltaic power generation equipment connected with the Internet of things device, and performing steady-state regulation and control on the output of the photovoltaic power generation equipment connected with the Internet of things device.
Preferably, the method further comprises:
the Internet of things control device uploads set operation data in the acquired operation data to the platform layer through the network layer;
and the platform layer carries out operation monitoring based on the set operation data.
Preferably, the platform layer performs power prediction based on the set operation data and uploads the power prediction data based on the requirement of the dispatching center.
Preferably, the uploaded data is encrypted before uploading the set operation data.
Compared with the closest prior art, the invention has the following beneficial effects:
the invention provides a distributed photovoltaic power generation control system and method based on cloud edge coordination, which comprises the following steps: the network layer is used for accessing and transmitting data of the sensing layer and the platform layer; the platform layer is used for receiving a steady-state regulation and control target of the dispatching center, generating a steady-state regulation and control instruction based on the steady-state regulation and control target and transmitting the steady-state regulation and control instruction to the perception layer through the network layer; the sensing layer is positioned on the side of the inverter and used for acquiring the operation data of the photovoltaic power generation equipment in real time and carrying out transient regulation and control on the output of the photovoltaic power generation equipment based on the operation data; the system is also used for performing steady-state regulation and control on the output of the photovoltaic power generation equipment based on a steady-state regulation and control instruction issued by the platform layer, the sensing layer positioned at the side of the photovoltaic inverter is used for performing local real-time acquisition, analysis and transient control on the operation data of the photovoltaic power generation equipment, the response speed of the transient control of the system is improved, and meanwhile, as a large amount of data of the operation of the photovoltaic equipment does not need to be uploaded to a data center, the network bandwidth is released, the speed of issuing the steady-state control instruction by the platform layer through the network is increased, the steady-state control response speed of the system is further improved, the processing capacity and the response speed of the system on the sudden situation of the power grid are improved, and the active support effect on the safe and stable operation of the power grid is achieved;
the photovoltaic power generation system can be monitored based on the set operation data, and powerful technical support is provided for timely finding and solving the abnormal operation of the system;
the method can also predict the generating power of the photovoltaic power generation system based on the set operation data, and provides powerful data support for the establishment of the steady-state regulation and control target of the system;
meanwhile, the data encryption function of the IOT control device adopted by the invention can effectively reduce the risk of network data leakage and ensure the data security of the photovoltaic power generation system.
Drawings
Fig. 1 is a schematic diagram of a distributed photovoltaic power generation control system based on cloud edge coordination provided by the invention;
fig. 2 is a schematic diagram of a distributed photovoltaic power generation control method based on cloud edge coordination provided by the invention;
fig. 3 is a schematic diagram of a distributed photovoltaic power generation control system architecture based on cloud-edge coordination, provided in an embodiment of the present invention.
Detailed Description
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
Example 1:
the embodiment discloses a distributed photovoltaic power generation control system based on cloud edge coordination as shown in fig. 1, including:
the network layer is used for accessing and transmitting data of the sensing layer and the platform layer;
the platform layer is used for receiving a steady-state regulation and control target of the dispatching center, generating a steady-state regulation and control instruction based on the steady-state regulation and control target and transmitting the steady-state regulation and control instruction to the perception layer through the network layer;
the sensing layer is positioned on the side of the inverter and used for acquiring the operation data of the photovoltaic power generation equipment in real time and carrying out transient regulation and control on the output of the photovoltaic power generation equipment based on the operation data; and the system is also used for performing steady state regulation and control on the output of the photovoltaic power generation equipment based on a steady state regulation and control instruction issued by the platform layer.
The sensing layer comprises a plurality of Internet of things control devices; and each Internet of things device is connected with one photovoltaic power generation device.
Thing networking controlling means includes:
the data acquisition module is used for acquiring the operation data of the photovoltaic power generation equipment connected with the data acquisition module in real time;
the calculation analysis module is used for carrying out real-time analysis and calculation on the basis of the operation data acquired by the data acquisition module, generating a transient regulation and control instruction and carrying out transient regulation and control on the output of the photovoltaic power generation equipment connected with the transient regulation and control module;
and the data downloading module is used for receiving the steady-state regulation and control instruction issued by the platform layer, issuing the steady-state regulation and control instruction to the photovoltaic power generation equipment connected with the data downloading module, and performing steady-state regulation and control on the output of the photovoltaic power generation equipment connected with the data downloading module.
Example 2:
the embodiment discloses an architecture schematic diagram of a distributed photovoltaic power generation control system based on cloud edge coordination as shown in fig. 3, which includes:
a sensing layer, a network layer and a platform layer.
A sensing layer: the sensing layer is positioned at the bottom layer of the whole distributed photovoltaic power generation cloud-side cooperative control framework and has the main function of being responsible for collecting and processing distributed photovoltaic power generation information; the sensing layer comprises a plurality of Internet of things control devices, the Internet of things control devices are arranged on one side of the inverters and are connected with one inverter, and the Internet of things control devices are used for monitoring information such as active power, reactive power, voltage, current and faults of each inverter in real time and uploading main data to the cloud platform; meanwhile, the Internet of things control device can directly judge the operation adopted at the moment through a control algorithm running on the device according to the voltage and the frequency of the power grid, and adaptively control the active power and the reactive power output of the inverter; the control device of the internet of things can also receive a steady-state regulation and control instruction sent by the cloud platform and issue the steady-state regulation and control instruction to the photovoltaic power generation system, so as to carry out steady-state power support on the power generation system; the application of the Internet of things control device greatly reduces network delay, so that the response is quicker, the control speed is millisecond level, the real-time sensing and the efficient information processing of the state of each inverter are realized, and the safe and stable operation of a power grid is quickly supported.
Platform layer: the platform layer is positioned above the perception layer and the network layer in the architecture of the control system, is the core of the whole cloud edge cooperative steady-state control, and comprises the following steps: the system comprises an operation monitoring module, a power prediction module and a coordination control module, wherein:
the operation monitoring module monitors the operation condition of the distributed photovoltaic power generation in real time based on the set operation data uploaded by the sensing layer, wherein the operation condition comprises information such as a real-time operation state, real-time output (including active power and reactive power), power generation capacity, faults and the like, and the safe and stable operation of the distributed photovoltaic power generation is ensured;
the power prediction module predicts the output of the distributed photovoltaic power generation based on the set operation data uploaded by the sensing layer and reports a power prediction curve to a superior dispatching department at a set time according to the requirement of a superior dispatching center;
and the coordination control module responds based on the active power, the reactive power and the voltage control target value of the grid-connected point of the distributed photovoltaic power generation issued by the upper dispatching department, generates a steady-state regulation and control instruction and issues the instruction to the sensing layer, coordinates and controls the output of each inverter in the distributed photovoltaic power generation, completes the control target requirement issued by the dispatching department, and has the response speed reaching the second level.
Network layer: the control system is positioned between the sensing layer and the platform layer in the architecture, has a strong tie function, and accesses and transmits information from the sensing layer and the platform layer through the existing infrastructure such as the internet, a mobile communication network, a satellite communication network and the like; according to the characteristics of distributed photovoltaic power generation, wired and wireless transmission modes can be selected, and the common wired transmission mode comprises the following steps: RS485, PLC (power line carrier communication), and the like; the wireless transmission mode comprises: ZIGBEE, LORA, NB-IOT, LTE, and the like.
In addition, in order to improve distributed photovoltaic power generation system data security, the data encryption module has still been added in the thing networking control device, and thing networking control device passes through the operation data of setting up and uploads to the platform layer through wireless public network after the data encryption module is encrypted, has reduced the risk that network data reveals, has improved the security of data.
The distributed photovoltaic power generation control system based on cloud edge coordination provided by the invention adopts a double-layer control structure and is divided into an upper cloud platform and a bottom layer for local control. The upper cloud platform is responsible for calculating the output of the distributed photovoltaic power generation inverters according to the control target at the distributed photovoltaic power generation grid-connected point, and issuing a control instruction to the Internet of things control device so as to control each inverter to respond; the bottom internet of things control device is responsible for collecting real-time operation information of the distributed photovoltaic inverter and uploading main information to the cloud platform, and receives a control instruction issued by the upper cloud platform, and meanwhile, the internet of things control device can timely control the output of the distributed photovoltaic inverter according to the system voltage and frequency monitored in real time and based on an internal control algorithm, the response speed reaches millisecond level, and the safe and stable operation of the power grid is quickly supported.
Example 3:
the embodiment of the invention discloses a distributed photovoltaic power generation control method based on cloud edge coordination, which is shown in figure 2 and comprises the following steps:
s1, the sensing layer collects the operation data of the photovoltaic power generation equipment in real time, and transient regulation and control are carried out on the output of the photovoltaic power generation equipment based on the operation data; the sensing layer is positioned on the inverter side;
s2 the platform layer receives a steady-state regulation and control target of the dispatching center, generates a steady-state regulation and control instruction based on the steady-state regulation and control target and sends the instruction to the perception layer through the network layer;
s3 the sensing layer carries out steady state regulation and control on the output of the photovoltaic power generation equipment based on a steady state regulation and control instruction issued by the platform layer.
The sensing layer collects the operation data of the photovoltaic power generation equipment directly connected with the internet of things device in real time through a plurality of internet of things control devices inside the sensing layer.
Carry out transient state control and steady state control through thing networking device to the output of the photovoltaic power generation equipment of being connected with thing networking device, include:
the method comprises the steps that operation data of photovoltaic power generation equipment connected with the internet of things device are collected in real time through the internet of things device;
performing real-time analysis and calculation based on the collected operation data to generate a transient regulation and control instruction, and performing transient regulation and control on the output of the photovoltaic power generation equipment connected with the transient regulation and control instruction;
and receiving the steady-state regulation and control instruction issued by the platform layer through the Internet of things device, issuing the steady-state regulation and control instruction to the photovoltaic power generation equipment connected with the Internet of things device, and performing steady-state regulation and control on the output of the photovoltaic power generation equipment connected with the Internet of things device.
The method further comprises the following steps:
the Internet of things control device uploads set operation data in the real-time collected operation data to the platform layer through the network layer;
and the platform layer carries out operation monitoring based on the set operation data.
And the platform layer carries out power prediction based on the set operation data and uploads the power prediction data based on the requirement of the dispatching center.
And encrypting the uploaded data before uploading the set operation data.
As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
It should be noted that the above-mentioned embodiments are only for illustrating the technical solutions of the present application and not for limiting the scope of protection thereof, and although the present application is described in detail with reference to the above-mentioned embodiments, those skilled in the art should understand that after reading the present application, they can make various changes, modifications or equivalents to the specific embodiments of the application, but these changes, modifications or equivalents are all within the scope of protection of the claims to be filed.

Claims (12)

1. A distributed photovoltaic power generation control system based on cloud edge coordination is characterized by comprising:
the network layer is used for accessing and transmitting data of the sensing layer and the platform layer;
the platform layer is used for receiving a steady-state regulation and control target of the dispatching center, generating a steady-state regulation and control instruction based on the steady-state regulation and control target and transmitting the steady-state regulation and control instruction to the perception layer through the network layer;
the sensing layer is positioned on the side of the inverter and used for acquiring the operation data of the photovoltaic power generation equipment and performing transient regulation and control on the output of the photovoltaic power generation equipment based on the operation data; and the system is also used for performing steady state regulation and control on the output of the photovoltaic power generation equipment based on a steady state regulation and control instruction issued by the platform layer.
2. The system of claim 1, wherein the sensing layer comprises a plurality of internet of things control devices; and each Internet of things device is connected with one photovoltaic power generation device.
3. The system of claim 2, wherein the internet of things control device comprises:
the data acquisition module is used for acquiring the operation data of the photovoltaic power generation equipment connected with the data acquisition module;
the calculation analysis module is used for performing analysis calculation based on the operation data acquired by the data acquisition module, generating a transient regulation and control instruction and performing transient regulation and control on the output of the photovoltaic power generation equipment connected with the transient regulation and control instruction;
and the data downloading module is used for receiving the steady-state regulation and control instruction issued by the platform layer, issuing the steady-state regulation and control instruction to the photovoltaic power generation equipment connected with the data downloading module, and performing steady-state regulation and control on the output of the photovoltaic power generation equipment connected with the data downloading module.
4. The system of claim 3, wherein the platform layer further comprises a runtime monitoring module; the Internet of things control device also comprises a data uploading module;
the data uploading module is used for uploading set running data to the platform layer through the network layer;
and the operation monitoring module is used for monitoring operation based on the set operation data uploaded by the data uploading module.
5. The system of claim 4, wherein the platform layer further comprises a power prediction module;
the power prediction module is used for performing power prediction based on the set operation data uploaded by the data uploading module and uploading the power prediction data based on the requirement of the dispatching center.
6. The system of claim 4 or 5, wherein the internet of things control device further comprises a data encryption module; and the data encryption module is used for encrypting the set operation data before uploading.
7. A distributed photovoltaic power generation control method based on cloud edge coordination is characterized by comprising the following steps:
the method comprises the steps that a perception layer collects operation data of photovoltaic power generation equipment in real time, and transient regulation and control are carried out on the output of the photovoltaic power generation equipment based on the operation data; the sensing layer is positioned on the inverter side;
the platform layer receives a steady-state regulation and control target of the dispatching center, generates a steady-state regulation and control instruction based on the steady-state regulation and control target and sends the instruction to the perception layer through the network layer;
and the sensing layer performs stable state regulation and control on the output of the photovoltaic power generation equipment based on a stable state regulation and control instruction issued by the platform layer.
8. The method of claim 7, wherein the sensing layer collects the operation data of the photovoltaic power generation equipment directly connected with the internet of things device in real time through a plurality of internet of things control devices inside the sensing layer.
9. The method of claim 8, wherein performing transient and steady state control of the output of the photovoltaic power plant connected to the internet of things device via the internet of things device comprises:
the method comprises the steps that operation data of photovoltaic power generation equipment connected with the internet of things device are collected in real time through the internet of things device;
performing real-time analysis and calculation based on the collected operation data to generate a transient regulation and control instruction, and performing transient regulation and control on the output of the photovoltaic power generation equipment connected with the transient regulation and control instruction;
and receiving the steady-state regulation and control instruction issued by the platform layer through the Internet of things device, issuing the steady-state regulation and control instruction to the photovoltaic power generation equipment connected with the Internet of things device, and performing steady-state regulation and control on the output of the photovoltaic power generation equipment connected with the Internet of things device.
10. The method of claim 9, further comprising:
the Internet of things control device uploads set operation data in the real-time collected operation data to the platform layer through the network layer;
and the platform layer carries out operation monitoring based on the set operation data.
11. The method of claim 10, wherein the platform layer performs power prediction based on set operational data and uploads the power prediction data based on a demand of a dispatch center.
12. The method according to claim 10 or 11, wherein the uploaded data is subjected to encryption processing before uploading the set operation data.
CN202010473960.5A 2020-05-29 2020-05-29 Distributed photovoltaic power generation control system and method based on cloud edge cooperation Pending CN113178945A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113872323A (en) * 2021-09-06 2021-12-31 广西电网有限责任公司电力科学研究院 Micro-grid cloud edge cooperative control system based on edge intelligence

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113872323A (en) * 2021-09-06 2021-12-31 广西电网有限责任公司电力科学研究院 Micro-grid cloud edge cooperative control system based on edge intelligence

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