Tao Weiqing

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The correct classification of power quality disturbances is the premise and basis of governance and control of power quality problems. This article extracts the instantaneous amplitude of the signal before and after the disturbance by HHT, combining S-transform of the disturbance signals to extract high-frequency and low-frequency characteristics, as to(More)
As both of micro-sources and load are fluctuate and random in micro-grid, energy storage device is the key part to maintain micro-grid operation safely and reliably, also to improve power quality. This paper first analyses that hybrid energy storage system composed of super-capacitors and batteries is suitable to maintain micro-grid operation safely. In(More)
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