Black-start operation control device for fan

By designing the fan black start operation control device, the black start power supply is used to provide the initial excitation voltage, combined with the inverter and the grid-side filtering component, the initial excitation problem of the wind turbine group during black start is solved, and the fan is quickly and stable black start and independent operation is achieved.

CN119726911APending Publication Date: 2025-03-28HUANENG GUANGDONG SHANTOU OFFSHORE WIND POWER CO LTD +2
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Patent Information

Application Number
CN202411870179.6
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-18
Publication Date
2025-03-28

AI Technical Summary

Technical Problem

The existing black start technology cannot effectively solve the initial excitation problem of wind turbines during black start, resulting in slow start speed and poor stability.

Method used

A fan black start operation control device is designed, including a rectifier, a black start power supply, an inverter and a network filtering component. The black start power supply provides power to the fan during black start, realizes the black start of the fan, and establishes a stable grid connection through the inverter and the grid filtering component.

Benefits of technology

It solves the initial excitation problem of the wind turbine during black start, realizes the rapid and stable black start of the fan, and can cut off the black start power after the system is independently running to complete the black start of the fan.

✦ Generated by Eureka AI based on patent content.
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Abstract

The invention provides a control device for black-start operation of a fan. The control device comprises a rectifier, a black-start power supply, an inverter and a network side filtering assembly, the input end of the rectifier is connected with a fan, and the output end of the rectifier is connected with the input end of the black-start power supply; the output end of the black start power supply is connected with the input end of the inverter, and the output end of the inverter is connected with the input end of the network side filtering assembly; the output end of the network side filtering assembly is connected with the input end of a power grid; wherein the black start power supply is used for providing electric energy for the fan during black start, so that the black start of the fan is realized. According to the technical scheme, the problem of initial excitation of the wind generating set during black start is solved, stable voltage and frequency are established, a black start power supply can be cut off after the system operates independently, and fan black start is completed.
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