The Simulation Research of Two State Markov Chain in the Double Random SVPWM of the Variable Frequency Control System

Bo Zheng; Hong Zheng

doi:10.4028/www.scientific.net/AMR.971-973.1828

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 971-973The Simulation Research of Two State Markov Chain...

The Simulation Research of Two State Markov Chain in the Double Random SVPWM of the Variable Frequency Control System

Abstract:

At present the Space Vector Pulse Width Modulation (SVPWM) technique has been widely used in the variable frequency control system,but the technique will make the system produce higher harmonic components at the switching frequency integer multiple times,thus the harmonic produce the high frequency noise.In the face of this problem, this paper adopts double random SVPWM technique which is added two state Markov chain to effectively reduce the high frequency noise.The technique makes the harmonic components amplitude value of the output current reduced effectively in the inverter of the variable frequency control system,so that the more output current is more relatively evenly distributed in the wide frequency range,so as to minimize the electromagnetic noise.

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Periodical:

Advanced Materials Research (Volumes 971-973)

Pages:

1828-1833

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.971-973.1828

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Online since:

June 2014

Authors:

Bo Zheng*, Hong Zheng

Keywords:

Double Random, Harmonic Wave, High Frequency Noise, Markov, SVPWM

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