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| Research on Phasing-control of the Vacuum Circuit Breaker with Detection of Zero Crossing |
| Liu Hongxing |
| Jiangsu Electric Power Maintenance Branch Company, Nanjing 21000 |
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Abstract Quickly and Accurately extracting the characteristic parameters of short-circuit current and predicting the zero crossing of the short-circuit current is a key technology for the phasing-control of the vacuum circuit breaker . According to the problem that half wave Fourier algorithm with the DC component in the control of the existing phasing-control of vacuum circuit breaker options will cause great error, a new method of semi-wave Fourier transform is proposed in the paper, which improves the the defect of weaker measurement precision of the existing algorithm and predicts the short circuit current which based on the arithmetic recursion method. Finally, the accuracy of the zero crossing point of the short circuit current forecast based on arithmetic recursion is verified by simulation and predict reference value for studying the phasing-control of vacuum circuit breaker.
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Received: 22 September 2016
Published: 22 September 2016
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| Cite this article: |
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Liu Hongxing. Research on Phasing-control of the Vacuum Circuit Breaker with Detection of Zero Crossing[J]. Electrical Engineering, 2016, 17(9): 51-54.
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http://dqjs.cesmedia.cn/EN/Y2016/V17/I9/51
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2016, Vol. 17 
