Photovoltaic control method and device, equipment and computer readable storage medium

Abstract

The invention discloses a photovoltaic control method and device, equipment and a computer readable storage medium. The method comprises steps that the parameter information of a selected distributionnetwork system is inputted; taking each photovoltaic system as the center of a region, the distribution network system is dynamically partitioned according to the information and a time period of nodes in the distribution network system to obtain multiple partition regions; a setting model is established according to the parameter information of the distribution network system and the partition regions obtained by partition; the setting model is calculated to obtain the calculation result. The method is advantaged in that firstly, the distribution network system is dynamically partitioned, secondly, the same type of PV systems in the same partition region are considered as a PV cluster, the same voltage control strategy and the same energy storage system operation strategy are utilized for control, advantages of centralized control are combined with advantages of local control, and thereby not only can the amount of communication information be reduced, but also global optimization between the partitioned regions is achieved, and computational burdens can be reduced.

Description

Technical field [0001] The present invention relates to the technical field of distributed power supply control, and more specifically, to a photovoltaic control method, device, equipment and computer-readable storage medium. Background technique [0002] The access of distributed power sources such as photovoltaics in the distribution network system brings good economic and environmental benefits. At the same time, it also leads to large fluctuations in feeder power, power imbalance between feeders, etc. due to its intermittency and randomness of output. Many problems such as voltage limit violations. [0003] At present, the distributed power source of photovoltaic in the distribution network system is mainly realized by two modes of centralized control or on-site control. Among them, centralized control is based on global information for global optimization, but the rapid increase in photovoltaics has greatly increased the communication burden and data processing pressure, and ...

AI Technical Summary

Problems solved by technology

Among them, centralized control is based on global information for global optimization, but the rapid increase of photovoltaics greatly increases the communication burden and data processing pressure, and once the central controller fails, it cannot coordinate a large number of schedulable resources in the system. In addition, In consideration of privacy and security, it is difficult for centralized control to obtain global information accurately and conveniently; local control only relies on local measurement information for control, although it cannot achieve global optimization, it does not require information exchange and remote measurement between nodes , therefore, the amount of communication information is significantly reduced, and when the power fluctuates in the system, the local control can respond quickly and quickly stabilize the fluctuation. In-place control strategies impose a heavy computational burden

That is, the existing centralized control has the problem of a relatively large amount of communication information, while the existing local control has the problem of being unable to achieve global optimization and the computational burden is relatively large

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