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The configuration of a single-phase AC-DC converter plus a three-phase DC-AC inverter traction system has been widely applied in high-speed railway electrical drive systems. The DC-link voltage contains a ripple component with a twice power line frequency because of the configuration of the single-phase converter. Fed by such a fluctuating DC-link voltage, a severe beat phenomenon of the motor current...
The configuration of a single-phase AC-DC converter plus a three-phase DC-AC inverter traction system has been widely applied in high speed railway electrical drive systems. If the LC filter is not adopted in the DC-link, the DC-link voltage fluctuation may beat with the motor electric frequency, which could cause an increase in power loss, torque pulsation and audible noise. This paper aims to reduce...
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