电力系统及其自动化学报2011，Vol.23Issue(4)：72-77,6.
电网电压不平衡双馈风力发电机改进控制方法
Improved Control of DFIG Wind Turbines with Unbalanced Grid Voltage
杨国清 1陈谦 1王德意1
作者信息
- 1. 西安理工大学水利水电学院,西安710048
- 折叠
摘要
Abstract
In order to effective improve operating performance and power quality of a doubly fed induction generators wind turbine under unbalanced grid voltage conditions, a novel control scheme was proposed. The rotor-side converter and grid-side converter of the DFIG are controlled in a positive dq reference frame as well as in a negative dq reference frame. The supplementary control of the rotor-side converter in dq reference frame restrains the electromagnetic torque pulsations of the DFIG caused by the unbalanced grid voltage, and the supplementary control of grid-side converter in dq reference frame minimizes the unbalance output currents of the turbine. The proposed control scheme was implemented in PSCAD/EMTDC on a DFIG wind turbine connected to a power grid with unbalanced voltage. Results show that it improves the operating performance of the DFIG wind turbine system.关键词
双馈风力发电机/对称分量/电网电压不平衡/负反馈Key words
doubly fed induction generator(DFIG) / symmetrical component/ unbalanced grid voltage/ negative feedback分类
信息技术与安全科学引用本文复制引用
杨国清,陈谦,王德意..电网电压不平衡双馈风力发电机改进控制方法[J].电力系统及其自动化学报,2011,23(4):72-77,6.
