Electric microgrid system simulation model for power plant factory

Abstract

The invention discloses an electric microgrid system simulation model for a power plant factory. The microgrid comprises a battery energy storage device, a plurality of generators and auxiliary equipment driven by the plurality of generators; each generator comprises a wind driven generator, a photovoltaic generator and a diesel generator; the microgrid is connected with a large power grid througha public connection node; the simulation design method comprises the steps that an active stall type control is adopted for the fan of the wind driven generator; the photovoltaic generator is controlled by adopting an improved variable-step-length disturbance method; and a droop control strategy is adopted for controlling the diesel generator. The method can be used for the optimal control strategy research of an electric microgrid in a factory, and the on-site test work is reduced and specifically, the solar energy utilization efficiency can be accurately and effectively improved through simulation calculation.

Description

technical field [0001] The invention relates to the technical field of micro-grids, in particular to a simulation model of a thermal power plant power micro-grid system. Background technique [0002] Due to its large inertia and large power generation, traditional thermal power plants are still the main contributors to current electric energy. Although all countries have proposed plans to use renewable energy to replace traditional fossil fuel power generation, in the foreseeable future, traditional forms of power generation will still dominate. During the transitional period of energy transformation, a large number of wind and light new energy power generation equipment have been built to provide clean and environmentally friendly green power for the grid. However, compared with traditional rotating equipment power generation, new energy has lower inertia and power generation will be affected. The influence of factors such as weather has caused a significant shortcoming of...

AI Technical Summary

Problems solved by technology

During the transitional period of energy transformation, a large number of wind and light new energy power generation equipment have been built to provide clean and environmentally friendly green power for the grid. However, compared with traditional rotating equipment power generation, new energy has lower inertia and power generation will be affected. The influence of factors such as weather has caused a significant shortcoming of new energy sources, which are uncontrollable and intermittent

The direct connection of high-penetration new energy to the power grid will directly reduce the inertia of the power system and bring potential risks

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