Space-vector PWM Techniques for a Two-Phase Permanent Magnet Synchronous Motor Considering a Reduction in Switching Losses
- Authors
- Hai Lin; Fei Zhao; 권병일
- Issue Date
- May-2015
- Publisher
- 대한전기학회
- Keywords
- Two-phase permanent magnet synchronous motor; Space vector pulse-width modulation; Switching frequency; Two-phase eight-switch inverter
- Citation
- Journal of Electrical Engineering & Technology, v.10, no.3, pp.905 - 915
- Indexed
- SCIE
SCOPUS
KCI
- Journal Title
- Journal of Electrical Engineering & Technology
- Volume
- 10
- Number
- 3
- Start Page
- 905
- End Page
- 915
- URI
- https://scholarworks.bwise.kr/erica/handle/2021.sw.erica/20121
- ISSN
- 1975-0102
- Abstract
- Two PWM techniques using space vector pulse-width modulation (SVPWM) are proposed for a two-phase permanent magnet synchronous motor (PMSM) driven by a two-phase eightswitch inverter. A two-phase motor with two symmetric stator windings is usually driven by a twophase four-, six-, or eight-switch inverter. Compared with a four- and six-switch inverter, a two-phase eight-switch inverter can achieve larger power output. For two-phase motor drives, the SVPWM technique achieves more efficient DC bus voltage utilization and less harmonic distortion of the output voltage. For a two-phase PMSM fed by a two-phase eight-switch inverter under a normal SVPWM scheme, each of the eight PWM trigger signals for the inverter have to be changed twice in a cycle, causing a higher PWM frequency. Based on the normal SVPWM scheme, two effective SVPWM schemes are investigated in order to reduce the PWM frequency by rearranging four comparison values, while achieving the same function as the normal PWM scheme. A detailed explanation of the normal and two proposed SVPWM schemes is illustrated in the paper. The experimental results demonstrate that the proposed schemes achieve a better steady performance with lower switching losses compared with the normal scheme.
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