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- W2362582282 abstract "Cascade multilevel, high voltage and large capacity inverters have been widely used in electric power systems. Carrier phase shifted sinusoidal pulse width modulation(CPS-SPWM) technique is very suitable for the high power inverter. In the paper, bipolar CPS-SPWM and single pole double frequency CPS-SPWM modulation method are presented respectively, and a simulation model based on PSCAD/EMTDC software is built. Comparative analysis for these two methods is made by adopting frequency spectrum analysis method. Simulation results have proved that the lowest harmonics of the output voltage are centralized near the N times of the carrier frequency, and the equivalent switch frequency is improved by N(N is the number of the cascade SVG for each phase) times by adopting bipolar CPS-SPWM. The lowest harmonics of the output voltage are centralized near the 2N times of the carrier frequency, and the equivalent switch frequency is improved by 2N times by adopting single pole double frequency CPS-SPWM. Therefore, the single pole double frequency CPS-SPWM modulation method is better to eliminate the harmonics, and its output voltage fits sine wave better." @default.
- W2362582282 created "2016-06-24" @default.
- W2362582282 creator A5016397130 @default.
- W2362582282 date "2014-01-01" @default.
- W2362582282 modified "2023-09-26" @default.
- W2362582282 title "Research on H Bridge Cascaded SVG with Carry Phase Shifting Technology" @default.
- W2362582282 hasPublicationYear "2014" @default.
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