Optimization method for output characteristics of wind-solar-storage combined power generation system

Abstract

The invention discloses a wind-solar-storage combined power generation system output characteristic optimization method. The method comprises the steps of calculating the obtained generated power of a wind power field on a typical day, and calculating the alternating-current output power obtained after a photovoltaic power generation system inverter at a photovoltaic power station on the typical day. After wind-solar superposed output is optimally controlled by an energy storage device, the influence of wind-solar output fluctuations on a power grid is reduced to a certain extent, meanwhile, the grid connection quality can be effectively improved, the charging and discharging process of the energy storage device is adjusted through an intelligent control dispatching system, and the aim of smoothing the output power of a wind-solar storage system can be achieved.

Description

technical field [0001] The invention relates to the technical field of renewable energy, and specifically refers to a method for optimizing output characteristics of a wind-solar-storage combined power generation system. Background technique [0002] With the increasingly severe energy and environmental issues, the issue of energy conservation and emission reduction has received widespread attention worldwide. Wind energy and solar energy are renewable and pollution-free green energy sources. Wind power generation and photovoltaic power generation have been vigorously developed in recent years. Wind and wind power generation depends on changing weather conditions, and the active output will fluctuate violently between different periods. For example, the output power is high in the previous period, and then falls to a low level in the next period. The increasing number of renewable energy sources such as large-scale wind power and photovoltaic power generation in the system ...

AI Technical Summary

Problems solved by technology

[0005] In view of the above-mentioned defects of the prior art, the present invention provides a method for optimizing the output characteristics of a wind-solar-storage combined power generation system, which solves the problems in the prior art that it is difficult to provide continuous and stable energy output for a power supply system that operates independently of wind and light, and its resources are insufficient. Stability and intermittency lead to poor energy quality, and large-scale grid connection will inevitably affect the security and stability of the grid.

Images