Day-ahead-real-time optimization control method for power distribution network based on energy storage reactive power regulation model

Abstract

The invention discloses a day-ahead-real-time optimization control method for a power distribution network based on an energy storage reactive power regulation model. The method comprises the following steps: constructing a day-ahead optimization control model based on the minimum daily operation cost of the power distribution network and a real-time optimization control model for hierarchical coordination of the power distribution network and a charging station; the day-ahead optimization control model determines the day-ahead active power of the charging station by taking a charging station power model, a power distribution network power flow equation and the like as constraint conditions and combining with an optimization target with the lowest daily operation cost. And the real-time optimization control model takes a day-ahead optimization result as an operation reference point, and realizes effective power distribution among the power distribution network, the charging station and the electric vehicle through coordination and complementation among multiple layers of optimization models so as to realize real-time optimization control of energy storage reactive power regulation. The technical problem of energy storage reactive power regulation in the power system is solved, the performance difference between the day-ahead optimization model and the real-time optimization model is considered, and the accuracy of the optimization result is improved.

Description

technical field [0001] The invention relates to the field of energy storage reactive power adjustment technology and distribution network optimization control. Background technique [0002] In recent years, the rapid economic development has increased energy consumption, but environmental pollution and the fossil energy crisis have become increasingly severe. Especially in the context of addressing global climate change, the United Nations Paris Agreement on Climate Change calls on all countries in the world to realize "an energy system dominated by new and renewable energy" as soon as possible. Therefore, in order to cope with the prominent contradictions between rapid economic development, environmental protection and energy shortage, countries around the world are vigorously developing projects related to clean energy. Among them, electric vehicles, as an environment-friendly vehicle, are supported by relevant policies of various countries in the world. The global electr...

AI Technical Summary

Problems solved by technology

The traditional voltage regulation devices of the distribution network include capacitor banks and static var compensators, etc., whose response speed is slow, and it is difficult to follow the rapid changes in voltage caused by the load of the distribution network.

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