Control system of a wind turbine generator

US10890160B2 · kind B2 · utility

Assignees

• Wind Power Technology Center of Gansu Electric Power Company · CN
• State Grid Corporation of China · CN
• Gansu Electric Power Company of State Grid · CN
• Shanghai Jiao Tong University · CN

Inventors

• Ningbo Wang · Lanzhou, CN
• Liang Lu · Hangzhou City, CN
• Kun Ding · Lanzhou, CN
• Shiyuan Zhou · Lanzhou, CN
• Chen Zhang · Shanghai, CN
• Jin Li · Lanzhou, CN
• Zheng Li · San Jose, US
• Nianzong Bai · Lanzhou, CN
• Jing Zhi · Lanzhou, CN
• Xu Cai · Shanghai, CN
• Zifen Han · 戴家巷社区, CN
• Youming Cai · Minhang District, CN

Key dates

• Filing date: Feb 8, 2017
• Grant date: Jan 12, 2021
• Expiry date: Feb 8, 2037

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02E70/30
• WIPO field: Electrical machinery, apparatus, energy
• WIPO sector: Electrical engineering

Abstract

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.