Modeling and control strategy for direct-drive wind power generation without grid voltage sensors

被引：0

作者：

Yang, Yong ^{[1
]}

Ruan, Yi ^{[2
]}

机构：

[1] School of Urban Railway Transportation, Soochow University, Suzhou 215021, China

[2] School of Mechatronics Engineering and Automation, Shanghai University, Shanghai 200072, China

来源：

Gaodianya Jishu/High Voltage Engineering | 2010年 / 36卷 / 05期

关键词：

Wind turbines - Electric power system control - Electric power transmission networks - Permanent magnets - Vector control (Electric machinery) - Electric inverters - Electric power generation - Phase locked loops - Electric generators;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

A wind turbine is directly connected to a generator in the direct-drive wind power generation system to improve efficiency and reliability. The topology of back-back PWM was adopted. The indirect torque vector control was used for machine-side converters, which achieved the maximum wind power tracking by adjusting the speed of permanent magnet synchronous generator. In order to improve reliability and to resist grid voltage fluctuation, and to further reduce the cost for grid-connected inverters, a new method was proposed based on phase lock loop (PLL) and virtual grid flux without grid voltage sensors, which was applied in the direct-drive wind power generation system. The simulated results show that the control strategy realizes the maximum wind power tracking and the unity power factor, which verifies the feasibility and correctness for the control strategy.

引用

页码：1287 / 1292

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