Shanghai Jiao Tong University

State Grid Corporation of China

Wind Power Technology Center of Gansu Electric Power Company

Gansu Electric Power Company of State Grid

Youming Cai

Chen Zhang

Liang Lu

Xu Cai

Ningbo Wang

Kun Ding

Jin Li

Shiyuan Zhou

Nianzong Bai

Jing Zhi

Zheng Li

Zifen Han

The present disclosure discloses a control system for enhancing a frequency support capability of a wind turbine generator system. The control system includes a wind turbine, a gearbox, an electric generator and a converter. The control system is characterized by further including a supercapacitor energy storage apparatus, which includes a DC-DC converter and a supercapacitor. The converter includes DC buses, and the supercapacitor is electrically connected to the DC buses via the DC-DC converter. The supercapacitor may be orderly charged or discharged according to an operating state of the wind turbine generator system to maintain its operating condition, and has a superior reliability.

Control system of a wind turbine generator

Provided are a control method and system for enhancing an endurance capability to an abnormal voltage of a wind turbine generator system. The control method, includes; providing a doubly-fed wind turbine generator system connected to a power grid; detecting a voltage of the power grid, and determining whether the voltage of the power grid has a fault; when the voltage of the power grid has a fault, detecting a voltage of the DC buses, and determining whether the voltage of the DC buses exceeds a limit value; when the voltage of the DC buses exceeds the limit value, performing integrated system coordination control according to an abnormal operating condition mode; and when the voltage of the power grid returns to a normal range, performing integrated system coordination control according to a normal operating condition mode.

Control method and control system for enhancing endurance to anomalous voltage for doubly-fed induction generator

Growing community of inventors

Minhang District, China

Youming Cai