Reducing root‐mean‐square current stress on the DC link capacitor of a five‐phase electric drive through multiple carrier pulse‐width modulation technique | Zendy

Diana Michela | Zendy; Maqsood Atif | Zendy; Corzine Keith | Zendy; Guglielmi Paolo | Zendy; Parsa Leila | Zendy

Open Access

Reducing root‐mean‐square current stress on the DC link capacitor of a five‐phase electric drive through multiple carrier pulse‐width modulation technique

Author(s) -

Diana Michela,

Maqsood Atif,

Corzine Keith,

Guglielmi Paolo,

Parsa Leila

Publication year - 2019

Publication title -

iet electric power applications

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.815

H-Index - 97

eISSN - 1751-8679

pISSN - 1751-8660

DOI - 10.1049/iet-epa.2019.0181

Subject(s) - pulse width modulation , root mean square , capacitor , phase (matter) , square root , current (fluid) , modulation (music) , three phase , electrical engineering , pulse (music) , link (geometry) , materials science , square (algebra) , stress (linguistics) , carrier signal , control theory (sociology) , physics , voltage , engineering , mathematics , acoustics , computer science , control (management) , quantum mechanics , linguistics , philosophy , geometry , combinatorics , artificial intelligence , transmission (telecommunications)

This study investigates the angle of phase shift between interleaved carriers in pulse‐width modulation, as an additional design parameter to reduce the DC link stress of a five‐phase drive. Several phase shift strategies are studied and defined with a focus on the DC link root‐mean‐square current. The effect of adjusting the phase shift between interleaved carriers on the DC link stress is analysed and a general mathematical model is proposed to estimate the effect for any phase shift strategy. The trends predicted by simulations and analytical models have been validated through the application of the control algorithm on a five‐phase motor drive system.

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