Virtual power plant electric energy distribution system

Abstract

The invention discloses an electric energy distribution system of a virtual power plant. The electric energy distribution system comprises the following steps: S1, continuously collecting, sorting and extracting information such as electric power use equipment information and load characteristics through an equipment resource management module; s2, real-time monitoring and real-time scheduling control are carried out on the power plant resource state through a power plant service management module; s3, storing data such as the power use equipment information and the power plant resource state collected in the step S1 and the step S2 into a data storage module; s5, transmitting the integrated and compared data to a power plant transaction strategy module, and responding to the demand of the equipment resource management module; and S6, the equipment resource management module, the power plant service management module and the power plant transaction strategy module are managed and controlled through the electric energy distribution management platform. According to the method, the partition index design of the large-scale flexible resources, the large-scale flexible resource partition strategy and the layered partition strategy are dynamically updated, and the overall operation efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the field of electric energy management systems, and in particular to an electric energy distribution system for a virtual power plant. Background Art

[0002] A virtual power plant is a system that integrates multiple types of power sources to provide a reliable overall power supply. The sources are typically a cluster of different types of dispatchable and non-dispatchable, controllable or flexible load systems that are controlled by a central authority and can include micro CHPs, natural gas reciprocating engines, small wind power plants, photovoltaics, run-of-river hydropower plants, small hydro, biomass, backup generators and energy storage systems.

[0003] Virtual power plant technology aggregates different types of distributed energy such as distributed power sources, energy storage systems, controllable loads, electric vehicles, etc. through advanced control, metering, communication and other technologies, and realizes the coordinated and optimized operation of multiple distributed energy sources through a higher-level software architecture, which is more conducive to the rational optimization and utilization of resources, improves the utilization rate of distributed energy, realizes the active management of distribution networks, and optimizes the investment costs of distribution networks and transmission networks by integrating more distributed power sources and effectively reducing the number of centralized power plants. When managing the distribution of power in power plants, virtual power plant technology is not convenient for flexible resource operation status analysis, flexible resource response characteristic modeling and flexible resource response characteristic model correction strategy. It cannot well realize the zoning indicator design of large-scale flexible resources, large-scale flexible resource zoning strategy and hierarchical zoning strategy dynamic update, which reduces the overall operating efficiency. In addition, there is a lack of monitoring and management of power-using equipment and power plant equipment, which is not convenient for monitoring the safe operation of power equipment. Summary of the invention

[0004] The purpose of the present invention is to provide a virtual power plant electric energy distribution system to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above object, the present invention provides the following technical solution: a virtual power plant power distribution system, comprising the following steps:

[0006] S1: The equipment resource management module continuously collects, organizes and extracts information about power equipment and load characteristics, and monitors and controls the operating status of specific resources;

[0007] S2: Through the power plant service management module, the power plant resource status is monitored in real time and the real-time dispatch control is carried out to manage the operation status and service capacity of power distribution;

[0008] S3: By storing the data such as the power usage equipment information and the power plant resource status collected in step S1 and step S2 in the data storage module, it is convenient to store and read the power usage equipment information and the power plant resource status data;

[0009] S4: Integrate and compare the data in the data storage module in step S3 through a data integration module, and associate the power usage equipment information with the power plant resource status data. The data integration module includes a data acquisition function, an expression method unification function, a protocol conversion function, an algorithm loading function, and a data storage function, and integrates and processes the data obtained in step S3;

[0010] S5: transmitting the data integrated and compared in step S4 to the power plant transaction strategy module, and using the power plant transaction strategy module to respond to the needs of the equipment resource management module;

[0011] S6: Manage and control the equipment resource management module, power plant service management module and power plant transaction strategy module through the power distribution management platform, so as to facilitate the operation and management of power plant power distribution;

[0012] S7: Monitor the operation system of the power distribution management platform through the system monitoring module, and monitor the working status of power-using equipment and power plant equipment through the equipment monitoring module;

[0013] S8: Positioning and retrieving the location information of multiple groups of monitors through the monitoring device positioning module, thereby obtaining the device location information monitored by the monitors.

[0014] Preferably, the equipment resource management module includes a data collection and integration module, a data testing and adjustment module and a data monitoring and control module, and the data collection and integration module is used for continuously collecting, organizing and extracting equipment information, load characteristics and other information.

[0015] Preferably, the data testing and regulating module is used to perform individual testing and load control on power equipment, and the data monitoring and control module is used to monitor and control the operating status of specific resources at the second level.

[0016] Preferably, the power plant service management module includes an electric energy service module, a demand response service module and an electric power auxiliary service module, and the electric energy service module is used to control the power consumption status of the equipment in real time.

[0017] Preferably, the demand response service module is used to achieve real-time optimization response scheduling based on resource characteristics and operating conditions, and the power auxiliary service module is used to regulate the power status of user resources.

[0018] Preferably, the power plant trading strategy module is used to implement monthly electricity market bidding strategy, green electricity trading, spot trading, interruptible load, day-ahead demand response and real-time secondary frequency regulation, voltage regulation and other auxiliary services.

[0019] Preferably, the electric energy distribution management platform is used to provide functions such as flexible resource operating status analysis, flexible resource response characteristic modeling, and correction strategy of flexible resource response characteristic model.

[0020] Preferably, the data storage module is used to store and read the power usage equipment information collected by the equipment resource management module, and the data storage module is used to store and read the power plant resource status data collected by the power plant service management module.

[0021] Preferably, the system monitoring module is used to monitor and control the adjustable resources accessed by the platform, the interaction status between the platform and the resources, etc. in real time, and the equipment monitoring module is composed of multiple groups of monitors and data processors, which are used to monitor the working status of power-using equipment and power plant equipment.

[0022] Preferably, the monitoring device positioning module is used to acquire the location data of multiple groups of monitors, and the monitoring device positioning module includes device location data encoding, device location data indexing, device data location calculation and device location data sharing.

[0023] The technical effects and advantages of the present invention are as follows: by developing a functional module for large-scale flexible resource dynamic partition optimization operation on the virtual power plant aggregator operation and management system, the data integration module and the power plant service management module collect and monitor the power use equipment information and the operation status of power distribution, and store the collected data in the data storage module, organize, test, adjust and monitor and control after passing through the data integration module, transmit data with the power plant transaction strategy module, process the service information, and feed it back to the power distribution management platform, and use multiple groups of monitors and data processors of the equipment monitoring module, and the monitor monitors the working status of the power use equipment and power plant equipment to ensure the safe operation of the power use equipment and power plant equipment. It has an alarm function and alarms for abnormal status of the power use equipment and power plant equipment, provides flexible resource operation status analysis, flexible resource response characteristic modeling, and flexible resource response characteristic model correction strategy, realizes the partition indicator design of large-scale flexible resources, and dynamically updates the large-scale flexible resource partition strategy and hierarchical partition strategy, thereby improving the overall operation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0025] Figure 2It is a structural diagram of the device resource management module of the present invention.

[0026] Figure 3 This is a structural diagram of a power plant service management module of the present invention.

[0027] Figure 4 This is a structural diagram of the positioning module of the monitoring device of the present invention. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] The present invention provides Figure 1-4 A virtual power plant power distribution system shown includes the following steps:

[0030] S1: The equipment resource management module continuously collects, organizes and extracts information about power equipment and load characteristics, and monitors and controls the operating status of specific resources;

[0031] S2: Through the power plant service management module, the power plant resource status is monitored in real time and the real-time dispatch control is carried out to manage the operation status and service capacity of power distribution;

[0032] S3: By storing the data such as the power usage equipment information and the power plant resource status collected in step S1 and step S2 in the data storage module, it is convenient to store and read the power usage equipment information and the power plant resource status data;

[0033] S4: Integrate and compare the data in the data storage module in step S3 through the data integration module, and associate the power usage equipment information with the power plant resource status data. The data integration module includes data collection function, expression method unification function, protocol conversion function, algorithm loading function and data storage function, and integrates the data obtained in step S3;

[0034] S5: transmitting the data integrated and compared in step S4 to the power plant transaction strategy module, and using the power plant transaction strategy module to respond to the needs of the equipment resource management module;

[0035] S6: Manage and control the equipment resource management module, power plant service management module and power plant transaction strategy module through the power distribution management platform, so as to facilitate the operation and management of power plant power distribution;

[0036] S7: Monitor the operation system of the power distribution management platform through the system monitoring module, and monitor the working status of power-using equipment and power plant equipment through the equipment monitoring module;

[0037] S8: Positioning and retrieving the location information of multiple groups of monitors through the monitoring device positioning module, thereby obtaining the location information of the devices monitored by the monitors;

[0038] The equipment resource management module includes a data collection and integration module, a data testing and adjustment module, and a data monitoring and control module. The data collection and integration module is used to continuously collect, organize, and extract information such as equipment information and load characteristics. The data collection and integration module uses machine learning to profile the power consumption behavior of each resource, continuously collects, organizes, and extracts information such as equipment information and load characteristics, and integrates them into a continuously upgraded knowledge base containing personalized information at all levels of resources;

[0039] The data testing and adjustment module is used to perform individual testing and load control on power equipment. The data testing and adjustment module can complete the maintenance and debugging of specific equipment, and can also realize the functions of incorporating and upgrading new resources. The data monitoring and control module is used to monitor and control the operating status of specific resources in seconds;

[0040] The power plant service management module includes the electric energy service module, the demand response service module and the power auxiliary service module. The power plant service management module is based on real-time monitoring of resource status and real-time dispatch control. Under the condition of comprehensive consideration of factors such as grid dispatch demand and power market information, it dispatches and controls the resources under the platform in real time, and thus has the ability to provide operation management, electric energy, power demand response, peak load regulation, frequency regulation and other services for the grid and resource end. The electric energy service module is used to control the power consumption status of equipment in real time. Based on the built-in optimization algorithm, the electric energy service module can control the power consumption status of equipment in real time in combination with the fluctuation of electricity price in the electric energy market, and thus optimize the power consumption plan;

[0041] The demand response service module is used to achieve real-time optimization response scheduling based on resource characteristics and operating conditions. The demand response service module is based on the power demand response plan issued by the power grid dispatching center, and achieves real-time optimization response scheduling based on resource characteristics and operating conditions. The power auxiliary service module is used to regulate the power status of user resources. The power auxiliary service module regulates the power status of user resources based on various auxiliary services required for power grid operation, such as primary frequency regulation, secondary frequency regulation, peak regulation and other services, to meet the power grid dispatching service requirements;

[0042] The power plant trading strategy module is used to improve the economic efficiency of resource operation. The power plant trading strategy module combines the resource characteristics of users, renewable energy, energy storage and other resources on the business operation management system and the user reliability requirements to realize the monthly electricity market bidding strategy, green electricity trading, spot trading, interruptible load, day-ahead demand response and secondary frequency regulation, voltage regulation and other auxiliary services at the real-time level, thereby improving the overall economic efficiency of resource operation;

[0043] The power distribution management platform is used to provide functions such as flexible resource operation status analysis, flexible resource response characteristic modeling, and correction strategy of flexible resource response characteristic model. Based on the virtual power plant aggregator operation and management platform, it can support users to increase equipment access and maintenance according to needs, and support users to increase statistical analysis functions and interface design according to application needs. The data interaction mode, interaction content and protocol between the power distribution management platform and user energy management system, electric vehicle management system, central air-conditioning control system, smart home, distributed power generation operation management system, smart interactive terminal and virtual power plant control management system can meet the large-scale access and plug-and-play of common equipment such as electric vehicle charging piles, central air-conditioning, and distributed power generation.

[0044] The data storage module is used to store and read the power usage equipment information collected by the equipment resource management module. The data storage module is used to store and read the power plant resource status data collected by the power plant service management module. The collected information is encoded and stored and decoded and read by the data storage module, so as to facilitate the extraction and comparison of the information of the corresponding power usage equipment and the power plant resource status data;

[0045] The system monitoring module is used to monitor and control the adjustable resources connected to the platform, the interaction between the platform and the resources, etc. in real time. The system monitoring module is an important way and means to manage resources. The system monitoring results not only provide important basic information basis for platform scheduling decisions, but also play a feedback role in improving system performance indicators. The equipment monitoring module consists of multiple groups of monitors and data processors. The monitors are used to monitor the working status of power-using equipment and power plant equipment to ensure the safe operation of power-using equipment and power plant equipment. It also has an alarm function to alarm the abnormal status of power-using equipment and power plant equipment.

[0046] The monitoring equipment positioning module is used to obtain the location data of multiple groups of monitors. The monitoring equipment positioning module includes equipment location data encoding, equipment location data indexing, equipment data location calculation and equipment location data sharing. The monitoring equipment positioning module uses encoding rules to encode the acquired monitor location data. When an alarm occurs on the corresponding monitor of the power-using equipment and power plant equipment, the code of the corresponding monitor is indexed through data segmentation coding, and the indexed encoded equipment location data is calculated using a binary algorithm. The equipment location data is shared to the power distribution management platform, which is convenient for personnel to locate the faulty equipment that has issued an alarm and perform subsequent maintenance.

[0047] The working principle of the present invention is as follows: by developing a functional module for dynamic partition optimization operation of large-scale flexible resources on the virtual power plant aggregator operation and management system, the data integration module and the power plant service management module collect and monitor the operation status of power use equipment information and power distribution, and store the collected data in the data storage module, sort, test, adjust and monitor and control after passing through the data integration module, transmit data with the power plant transaction strategy module, process the service information, and feed it back to the power distribution management platform, and use multiple groups of monitors and data processors of the equipment monitoring module, and the monitor monitors the working status of power use equipment and power plant equipment to ensure the safe operation of power use equipment and power plant equipment, and has an alarm function to alarm the abnormal status of power use equipment and power plant equipment, provide flexible resource operation status analysis, flexible resource response characteristic modeling, and flexible resource response characteristic model correction strategy, realize the partition indicator design of large-scale flexible resources, the large-scale flexible resource partition strategy and the hierarchical partition strategy dynamic update, so as to adapt to the aggregator to carry out partition management and operation of large-scale resources by category, industry, response capability and other performance, and improve the overall operation efficiency.

[0048] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A virtual power plant power distribution system, characterized in that: The following steps are involved: S1: The equipment resource management module continuously collects, organizes and extracts information about power equipment and load characteristics, and monitors and controls the operating status of specific resources; S2: Through the power plant service management module, the power plant resource status is monitored in real time and the real-time dispatch control is carried out to manage the operation status and service capacity of power distribution; S3: By storing the data such as the power usage equipment information and the power plant resource status collected in step S1 and step S2 in the data storage module, it is convenient to store and read the power usage equipment information and the power plant resource status data; S4: Integrate and compare the data in the data storage module in step S3 through a data integration module, and associate the power usage equipment information with the power plant resource status data. The data integration module includes a data acquisition function, an expression method unification function, a protocol conversion function, an algorithm loading function, and a data storage function, and integrates and processes the data obtained in step S3; S5: transmitting the data integrated and compared in step S4 to the power plant transaction strategy module, and using the power plant transaction strategy module to respond to the needs of the equipment resource management module; S6: Manage and control the equipment resource management module, power plant service management module and power plant transaction strategy module through the power distribution management platform, so as to facilitate the operation and management of power plant power distribution; S7: Monitor the operation system of the power distribution management platform through the system monitoring module, and monitor the working status of power-using equipment and power plant equipment through the equipment monitoring module; S8: Positioning and retrieving the location information of multiple groups of monitors through the monitoring device positioning module, thereby obtaining the device location information monitored by the monitors.

2. A virtual power plant power distribution system according to claim 1, characterized in that: The equipment resource management module includes a data collection and integration module, a data testing and adjustment module, and a data monitoring and control module. The data collection and integration module is used for continuously collecting, sorting and extracting equipment information, load characteristics and other information.

3. A virtual power plant power distribution system according to claim 2, characterized in that: The data testing and regulating module is used to perform individual testing and load control on the power equipment, and the data monitoring and control module is used to monitor and control the operating status of specific resources in seconds.

4. A virtual power plant power distribution system according to claim 1, characterized in that: The power plant service management module includes an electric energy service module, a demand response service module and an electric power auxiliary service module. The electric energy service module is used to control the power consumption status of the equipment in real time.

5. A virtual power plant power distribution system according to claim 4, characterized in that: The demand response service module is used to achieve real-time optimization response scheduling based on resource characteristics and operating conditions, and the power auxiliary service module is used to regulate the power status of user resources.

6. A virtual power plant power distribution system according to claim 1, characterized in that: The power plant trading strategy module is used to implement monthly electricity market bidding strategies, green electricity trading, spot trading, interruptible loads, day-ahead demand response, and secondary frequency regulation, voltage regulation and other auxiliary services at the real-time level.

7. A virtual power plant power distribution system according to claim 1, characterized in that: The electric energy distribution management platform is used to provide functions such as flexible resource operation status analysis, flexible resource response characteristic modeling, and correction strategy of flexible resource response characteristic model.

8. A virtual power plant power distribution system according to claim 1, characterized in that: The data storage module is used to store and read the power usage equipment information collected by the equipment resource management module, and the data storage module is used to store and read the power plant resource status data collected by the power plant service management module.

9. A virtual power plant power distribution system according to claim 1, characterized in that: The system monitoring module is used to monitor and control the adjustable resources accessed by the platform, the interaction status between the platform and the resources, etc. in real time. The equipment monitoring module is composed of multiple groups of monitors and data processors, and is used to monitor the working status of power-using equipment and power plant equipment.

10. A virtual power plant power distribution system according to claim 1, characterized in that: The monitoring device positioning module is used to obtain the location data of multiple groups of monitors. The monitoring device positioning module includes device location data encoding, device location data indexing, device data location calculation and device location data sharing.

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