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Abstract:
为了满足复杂工况下基波正序有功、无功电流精确检测的需要,提出一种基于参考相位的改进型DFT算法,实现αβ轴系下基波电压、电流及其正交量的重构.结合瞬时对称分量变换和瞬时无功功率理论进一步提取基波正序有功、无功电流.考虑电网频率波动问题,利用等角度间隔采样原理在线跟踪电网频率变化.相比于常规的dq法,该方法省略了锁相环和低通滤波器,可准确、实时地求出基波正序电流的有功和无功分量.最后通过仿真和实验验证了该方法的正确性和可行性.
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电机与控制学报
ISSN: 1007-449X
Year: 2017
Issue: 10
Volume: 21
Page: 16-22,29
Cited Count:
SCOPUS Cited Count: 3
ESI Highly Cited Papers on the List: 0 Unfold All
WanFang Cited Count: -1
Chinese Cited Count:
30 Days PV: 0
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