Full-power wind turbine generator set wind power plant simulation system, method and device

Abstract

The invention provides a full-power wind turbine generator set wind power plant simulation system, method and device, and the system comprises a full-power wind turbine generator set single-machine model module which carries out the simulation modeling of the single-machine grid connection of a full-power wind turbine generator set, and outputs a three-phase alternating current; a power system transmission line model module, used for simulating a power system transmission line in a wind power plant and carrying out long-distance transmission on the three-phase alternating current output by thefull-power wind turbine generator stand-alone model module; and a power grid model module simulating a power grid model merged into the wind power plant to realize simulation of the full-power wind turbine generator wind power plant. According to the full-power wind turbine generator wind power plant simulation system, method and device provided by the invention, aiming at wind power plant modeling of the full-power wind turbine generator, the problem that the prior art cannot be suitable for field-level modeling of the full-power wind turbine generator can be effectively solved. The modelingproblem of the full-power wind turbine generator can be solved in a modular modeling mode, and the method has obvious advantages.

Description

technical field [0001] The invention relates to the technical field of wind power generation modeling, in particular to a modular full-power wind turbine wind farm simulation system, simulation method and equipment. Background technique [0002] With the recent rapid development of clean energy represented by wind power and photovoltaic power generation, the power system is undergoing a transformation from centralized power generation to distributed power generation systems. The continuous improvement of the domestic energy demand and the sharp increase in the demand for energy, the traditional energy will not be able to meet the growing energy demand, so vigorously developing new energy including wind power will be an important development direction in the next step. [0003] Compared with double-fed wind turbines, full-power wind turbines have the characteristics of high efficiency, high power density, and high reliability. Back-to-back converters are used to feed the elec...

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Problems solved by technology

[0006] The Chinese invention patent application "Full Power Wind Turbine Control Method and System" with the application number 201811124760.8 proposes a control method and system to improve the stability of full power wind turbine operation in a weak grid, so that the full power wind turbine is synchronized with the power grid. The characteristics of the generator, at the same time have the function of weak grid operation stability and participate in the grid inertia response, but the control method and system focus on the control method of the single-machine system, and cannot be applied to the field-level modeling of the full-power wind turbine

[0007] The Chinese invention patent application "A Control Method and System for Permanent Magnet Direct Drive Wind Power System" with the application number 201910248012.9 proposes a new type of control method for permanent magnet direct drive full-power wind turbines. The active current simulates the synchronous generator Inertia can reduce the fluctuation of energy fed into the grid by the wind power system. However, this control method and system cannot solve the modeling method of the wind farm, and has obvious limitations.

[0008] At present, there is no description or report of similar technology to the present invention, and no similar information has been collected at home and abroad

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