Composite differential evolution algorithm for SHM with low carrier ratio

Yanjun Yu, Pengfei Zhang, Zaixin Song, Feng Chai

Research output: Journal article publicationJournal articleAcademic researchpeer-review

6 Citations (Scopus)


This study presents a new method of switching angle solution based on composite differential evolutions (CoDE) in selective harmonic mitigation pulse width modulation (SHMPWM). The method can effectively improve the global searching ability and convergence rate of the solution by the combination of multiple composite trial vectors and control parameter settings. Its great generality makes itself applicable to selective harmonic elimination PWM and synchronous harmonic optimum PWM as well. This study introduces the basic principles of SHMPWM and CoDE, constructs the constraint and objective functions by means of penalty, and gives detailed solution steps. After getting the switching angle solutions from comparative studies including different switching angle numbers, different modulation degrees, or different optimised PWM methods, the experimental platform finally has been designed and carried out to verify the accuracy and generality of the proposed method.

Original languageEnglish
Pages (from-to)1101-1109
Number of pages9
JournalIET Power Electronics
Issue number6
Publication statusPublished - 29 May 2018
Externally publishedYes

ASJC Scopus subject areas

  • Electrical and Electronic Engineering


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