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Title: Elimination of Common-Mode Voltage in Dual Two-Level Voltage Source Inverter Fed Open-End Load Using a Discontinuous SVM Technique
Authors: Nuttawout Buarat
Yuttana Kumsuwan
Authors: Nuttawout Buarat
Yuttana Kumsuwan
Keywords: Engineering
Issue Date: 9-May-2019
Abstract: © 2018 IEEE. While the utilization of a two-level voltage source inverter (VSI) with a single de supply fed ac loads such as ac motor drives, it also causes some problems, among which the common-mode voltage (CMV) cannot be ignored in drive systems, the mitigation or zero CMV control is necessary for proper operation. This paper proposes a discontinuous space vector modulation (SVM) technique to eliminate the CMV of a dual two-level VSI with two isolated de supplies fed open-end load applications. This technique uses five-segment switching sequence design with centralizing PWM scheme to generate the discontinuous modulating waves for both inverters, resulting in reduces the step and peak value of the CMV of each inverter and also is that it can cancel the CMV at the open-end load to zero. Simulation results validate the effectiveness of the proposed technique.
Appears in Collections:CMUL: Journal Articles

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