摘要
针对三相电压的跌落和不对称问题,提出一种dq变换和加权最小二乘估算相结合的电压检测方法.与常规的检测方法相比,该方法能够迅速准确地检测出三相电压的各相序分量的情况,在此基础上研究了针对电压各相序分量的补偿策略.最后,通过仿真验证了所提出的检测和补偿策略的有效性.
In view of three-phase voltage sag and unbalance,a kind of voltage detection method with dq transformation in combination with weighted least-squares estimation（WLSE）was proposed.Comparing with regular detection methods,this method can quickly and accurately detect the sequence components of three-phase voltage.Based on the proposed method,the compensation strategy for different sequence component of voltage was studied also.Finally,the validity of the detection and compensation strategy was verified by simulation.
出处
《天津科技大学学报》
CAS
2011年第2期52-55,共4页
Journal of Tianjin University of Science & Technology
基金
天津科技大学引进人才科研启动基金资助项目(20060431)
