| 供电电压跌落和不对称的检测及其补偿策略 |
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| 引用本文： | 侯勇,游国栋.供电电压跌落和不对称的检测及其补偿策略[J].天津科技大学学报,2011,26(2):52-55. |
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| 作者姓名： | 侯勇 游国栋 |
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| 作者单位： | 天津科技大学电子信息与自动化学院,天津,300222 |
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| 基金项目： | 天津科技大学引进人才科研启动基金资助项目 |
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| 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.
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| 关 键 词： | 电能质量 电压跌落 dq变换 加权最小二乘估算 |
Detection and Compensation of Supply Voltage Sag and Unbalance |
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| HOU Yong,YOU Guo-dong.Detection and Compensation of Supply Voltage Sag and Unbalance[J].Journal of Tianjin University of Science & Technology,2011,26(2):52-55. |
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| Authors: | HOU Yong YOU Guo-dong |
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| Institution: | HOU Yong,YOU Guo-dong(College of Electronic Information and Automation,Tianjin University of Science & Technology,Tianjin 300222,China) |
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| Abstract: | 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 sim... |
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| Keywords: | power quality voltage sag dq transformation WLSE |
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