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| A No-blind Area Detection Method of Detuning in Continuously Tuned AC Filter |
| DENG Ya-ping, TONG Xiang-qian, BAO Yang, FENG Ying |
| School of Automation and Information Engineering, Xi’an University of Technology, Xi’an, Shannxi 710048, China |
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Abstract The measurement of detuning is a very crucial step in continuously tuned AC filter, and the detection precision can affect the filtering performance and operation stability. To solve the problem of detection dead zone in existing indirectly measurement of AC filter detuning, a new detection method based on the harmonic voltage crossed between the filter reactor and capacitor is proposed. The presented method not only overcomes the detection blind area, but also has advantages of simple implementation. A detuning detection experimental system is developed, and the results show the effectiveness and accuracy of the proposed method for filter detuning.
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2014, Vol. 35 
