Research on a Novel Non Dead-Time Compensation Two-Phase Modulation SVPWM Control Strategy

Abstract:

A space vector pulse-width modulation (SVPWM) strategy was developed to solve the failure of traditional SVPWM. A two-phase modulation method is adopted basing on the analyses of traditional SVPWM to select the null switching state in each sector according to the power factor angle. As a result, when the current is crossing zero, the corresponding phase does not commute and dead-time compensation is avoided; and when the current is nearing the peak, the corresponding phase also don’t commute, which leads to lower switching losses. The simulation and experimental results validate that the proposed strategy can effectively improve the current wave, minimize the current distortion and reduce the switching losses. Furthermore, the algorithm is easy to implement.

• Periodical: Advanced Materials Research (Volumes 546-547)
• Pages: 1050-1055
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.546-547.1050
• Online since: July 2012
• Authors: Bao Lian Liu, De Fei Jin
• Keywords: Dead-Time Compensation, SVPWM, Switching Loss, Zero Voltage Vector

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