Method for controlling load following operation of micro-grid

Abstract

The invention relates to a method for controlling load following operation of a micro-grid. The micro-grid comprises a main power supply, a biomass power generation system, an intermittent new energy source power generation system, an energy storage system and a micro-grid energy management system, wherein the main power supply undertakes payload fluctuation in an energy management scheduling period of a micro-grid system, the biomass power generation system undertakes the payload fluctuation when the duration of the micro-grid system is longer than the energy management scheduling period, and the energy storage system provides an emergency frequency modulation function when the system undergoes large disturbances. The method disclosed by the invention improves the permeability of renewable energy resources, reduces the consumption of diesel oil, and improves the economical efficiency of system power supply while realizing energy conservation and emission reduction.

Description

technical field [0001] The invention relates to the technical field of micro-grids, in particular to a load-following operation control method of a micro-grid. Background technique [0002] Microgrid can effectively combine various types of distributed power sources, realize multiple energy sources, and improve energy utilization. It is one of the effective means to solve power supply in islands and remote communities. [0003] Independent microgrid systems generally contain a large number of renewable energy sources such as photovoltaics and wind power. The inherent randomness and volatility of these new energy sources have brought great challenges to the operation and control of similar microgrid systems. The traditional operation strategy and control method, which uses power generation to track load fluctuations to achieve system balance, and power generation control to adjust the system's operating state, has been difficult to meet the operation control requirements of t...

AI Technical Summary

Problems solved by technology

[0009] The technical problem to be solved by the present invention is to provide a micro-grid load-following operation control method, which can reduce the output of the diesel power generation system, reduce the capacity configuration of the energy storage system, and improve the utilization rate of the biomass power generation system, thereby overcoming the existing micro-grid. In the power grid system, the output of diesel power generation system accounts for a relatively high proportion and the capacity of energy storage system is relatively large.

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