An energy coordination method in the black start process of wind-solar-storage-generation system

Abstract

The invention relates to an energy coordination method in the black-start process of a wind-solar-storage power generation system, including: mode selection, coordination optimization and control methods, etc., the operation mode of the wind-solar-storage power generation system is selected according to the operating state of the wind-solar storage power generation system, and the establishment and The prediction model and rolling optimization model corresponding to the operation mode adopt the rolling optimization method to obtain the optimal control sequence in each control time domain, and the control part executes the optimal control sequence to realize the optimal adjustment of the output power of the wind-solar-storage power generation system . It has the advantages of being scientific and reasonable, strong applicability and good effect.

Description

technical field [0001] The invention relates to the technical field of power grid black start, and is an energy coordination method in the process of black start of a wind-solar power generation system. Background technique [0002] Black start refers to the fact that after the entire system is powered off due to a fault, without relying on external help, the units with self-start capability in the system are used to drive the units without self-start capability, and the units that have been shut down are gradually restored, and finally the power supply of the entire system is restored. . [0003] During the black start process of existing wind farms and photovoltaic power plants, due to the randomness and uncertainty of the output power of wind farms and photovoltaic power plants, as well as the batch input of black start loads, the energy storage has been in a state of deep charge and discharge. Even the overcharge and over-discharge problem occurs, which leads to the fai...

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