Method for simulating and analyzing automatic generation control of electrical power system containing wind power

Abstract

The invention provides a method for simulating and analyzing automatic generation control of an electrical power system containing wind power. The method comprises the following steps of building a power grid model to which the wind power is connected, building a simulation platform external interface model, performing formatting processing to data changing with time in a power grid and inputting the data into the simulation platform external interface model, setting a simulation parameter and performing dynamic operation simulation, building a control performance index assessing and analyzing model, preserving and processing result data to a control performance index. The method is used for studying impact analysis of wind power connection to power grid dynamic frequency modulation, the simulation time can be calculated from second level to hour level and higher than hour level, and monitoring variables include power system frequency, interconnection power, conventional generator set power, wind farm power and the like and are used for quantitatively analyzing influence on power grid frequency control performance under the conditions of different wind power and providing reasonable suggestions for adjustment of a control method of an automatic generation control system. The method facilitates in-advance early warning of safe and stable operation risks of the power system after large-scale wind power is connected to the power system.

Description

technical field [0001] The invention belongs to the field of new energy power generation, and in particular relates to a simulation analysis method for automatic power generation control of a power system including wind power. Background technique [0002] Wind power generation has the characteristics of intermittent and randomness. Large-scale wind power generation grid integration has a great impact on the safe and stable operation of the power system. Before large-scale wind power generation grid integration, various operations after grid integration are required. The state is simulated, potential problems are found and solutions are proposed, which can effectively prevent the impact of large-scale wind power access on the safe and stable operation of the system. [0003] Although the existing domestic and foreign power system simulation software has established models of wind turbines and wind farms, and can analyze the impact of wind farms connected to the power grid, m...

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Problems solved by technology

[0003] Although the existing domestic and foreign power system simulation software has established models of wind turbines and wind farms, and can analyze the impact of wind farms connected to the power grid, most of the analysis methods are power flow steady-state calculations and millisecond-level fault transient calculations, which cannot be used for wind power generation. The dynamic simulation of the long-term process, that is, the simulation of the automatic power generation control (secondary frequency regulation) based on the dispatch plan is not considered, and the influence of the long-term fluctuation of wind power on the system frequency and regional control error performance indicators of the power system cannot be simulated.

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