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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. 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...
The configuration of a single-phase AC-DC converter plus a three-phase inverter traction system has been widely applied in high-speed railway electrical drive systems. With the single-phase power feeder, the instantaneous power is fluctuating at twice of the power line frequency, and so is the DC-link voltage. Associated with the DC-link voltage fluctuation is a severe problem, when the electric frequency...
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