This paper introduces the electric drive control system of the reversible turbine unit of Ziwu Hydropower Station.Based on the four-quadrant cascaded medium voltage inverter,the variable speed constant frequency operation of the unit under the power generation condition and the high efficiency and energy saving operation under the pumping condition are realized.At the same time,the redundant design of electrical circuit,the fast bypass technology of inverter power unit and the neutral point drift technology ensure the high reliable operation of the unit.
Electric drive control system of reversible water turbineVariable speed constant frequency controlCascaded medium voltage frequency converter
维普
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