Simulation verification method for low voltage ride through (LVRT) of wind farm

Abstract

The invention provides a simulation verification method for low voltage ride through (LVRT) of a wind farm. The method comprises the following steps of: analyzing operating characteristics of a wind generation set according to a verified wind generation set electric simulation model; establishing a wind farm electric simulation model, and verifying whether the wind farm has LVRT or not; and establishing a regional power system simulation model comprising the wind farm electric simulation model, and verifying influence of wind farm grid connection on secure and stable operation of a power system. The invention provides a complete and effective method for verifying the LVRT of the wind farm; and the method has positive significance on judging whether the wind farm meets the grid connection requirement or not, avoiding large-scale wind power off-line accidents and ensuring secure and stable operation of a power grid, and lays a foundation for establishing and perfecting a wind power grid-connected authentication system in China.

Description

technical field [0001] The invention belongs to the field of power system simulation and verification, and in particular relates to a simulation verification method for low-voltage ride-through capability of a wind farm. Background technique [0002] In recent years, under the situation of favorable policies and technological progress, my country's wind power has developed rapidly, and its operation technology, dispatch management, and standard system have reached the world's advanced level. At present, the wind power of many provincial power grids in the "Three North" region has leapt to the second largest installed power source in the regional power grid, and the safe operation of wind power has become an important factor to ensure the safe operation of large power grids. During the strong wind in 2011, safety problems of wind power operation broke out in some grid provinces, and large-scale wind turbine off-grid accidents occurred many times in the "Three North" region, w...

AI Technical Summary

Problems solved by technology

During the strong winds in 2011, safety problems of wind power operation broke out in some grid provinces, and large-scale wind turbine off-grid accidents occurred many times in the "Three North" area, which had a serious impact on the safe and stable operation of the grid

The large-scale centralized access system of wind power is a special problem encountered in the development of wind power in my country. There is no international experience for reference. The simulation verification method of low voltage ride-through capability of wind farm is necessary and urgently needed

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