Abstract
This paper analyses the harmonic distribution of current and voltage of inverter output based on RSVPWM control strategy and compares the result with normal SVPWM strategy. It gives the random strategy and verifiesthe strategys feasibility. Experimental results show that RSVPWM control method makes harmonic energy evenly distributed in wide frequency band, and changes the original discrete harmonic spectrum into a continuous spectrum on the whole frequency band as much as possible. Random switching frequency SVPWM control scheme could reduce the harmonic energy which focuses on the integral multiple of switching frequency, thus reducing electromagnetic noise and mechanical vibration.
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