Wind generating set high-voltage ride-through control method, device and system

Abstract

The invention discloses a wind generating set high-voltage ride-through control method, device and system. The method comprises the steps that a regional power grid controller sends a high-voltage ride-through control command when the voltage of the power grid is higher than a preset threshold value; a wind power plant central controller is used for ranking the predicted power values of all the wind generating sets according to the priority from large to small, and generating and sending a first high-voltage ride-through control signal and a second high-voltage ride-through control signal, wherein the first high-voltage ride-through control signal is used for controlling the wind generating sets at the front N positions to run at a preset high-voltage ride-through operation strategy when the voltage of the power grid is higher than the preset threshold value, and the second high-voltage ride-through control signal is used for controlling the other wind generating sets to perform off-net operation when the voltage of the power grid is higher than the preset threshold value; and enabling a controller of the wind generating sets to receive the first or second high-voltage ride-throughcontrol signals and to perform corresponding control actions. By implementing the method, the normal operation of the power grid can be ensured when the minimum high-voltage ride-through software andhardware are adopted at each wind generator side.

Description

technical field [0001] The invention relates to the field of wind power generators, in particular to a high voltage ride-through control method, device and system for wind power generators. Background technique [0002] With the development of social economy, power resources have become a necessity of people's life. In addition to the traditional methods of thermal power and hydropower, emerging wind power and nuclear power also play an important role. Because wind power has the advantages of being clean, renewable, and not damaging the geographical environment, its application is becoming more and more widespread. However, due to the unstable nature of wind power, the control of wind power generation is also critical. [0003] Wind turbines are an important tool for collecting wind energy and converting wind energy into electrical energy. For wind turbines, the voltage status of the power grid where the wind turbines are located directly affects the working status of the...

AI Technical Summary

Problems solved by technology

[0006] At present, the high-voltage ride-through capability requires that each wind turbine must meet the corresponding requirements, that is, each wind turbine must match the corresponding hardware and software resources, and must run every time a high voltage occurs in the power grid. Corresponding high-voltage ride-through strategies to consume corresponding hardware and software resources

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