A Novel Dual Random PWM Scheme and Its Simulation Analysis

Authors

Haopeng Wu, The Internet of Things Technology Application Engineering Research Center of the Ministry of Education, Jiangnan University, Wuxi 214122, China;
Tinglong Pan, The Internet of Things Technology Application Engineering Research Center of the Ministry of Education, Jiangnan University, Wuxi 214122, China;
Dinghui Wu, The Internet of Things Technology Application Engineering Research Center of the Ministry of Education, Jiangnan University, Wuxi 214122, China;
Zhicheng Ji, The Internet of Things Technology Application Engineering Research Center of the Ministry of Education, Jiangnan University, Wuxi 214122, China;

Abstract

Abstract: In the consideration that random pulse position pulse width modulation (PWM) still contains discrete spectral components, a novel strategy of dual randomized modulation is presented. The proposed method is based on dual zero vector random pulse position PWM, in which zero vector is selected as V(1 1 1) when M≥0.7 and as V(0 0 0) when M<0.7, and the random variation of the pulse position and the switch frequencyis realized by increasing the switch frequency randomization. To insure better random variation degree of dual random PWM,WELL algorithm is introduced to generate random number. Simulation results show that the proposed scheme can reduce the dominant harmonic clusters of the output line voltages and the phase currents effectively, and has well-distributed spectrum in the whole frequency interval.

Recommended Citation

Wu, Haopeng; Pan, Tinglong; Wu, Dinghui; and Ji, Zhicheng (2019) "A Novel Dual Random PWM Scheme and Its Simulation Analysis," Journal of System Simulation: Vol. 30: Iss. 9, Article 28.
DOI: 10.16182/j.issn1004731x.joss.201809028
Available at: https://dc-china-simulation.researchcommons.org/journal/vol30/iss9/28

First Page

3451

DOI Link

https://doi.org/10.16182/j.issn1004731x.joss.201809028

Last Page

3456

CLC

TM464

Recommended Citation

Wu Haopeng, Pan Tinglong, Wu Dinghui, Ji Zhicheng. A Novel Dual Random PWM Scheme and Its Simulation Analysis[J]. Journal of System Simulation, 2018, 30(9): 3451-3456.

DOI

10.16182/j.issn1004731x.joss.201809028