Abstract
This paper proposes a simplified PWM strategy for fault tolerant control of an open winding permanent magnet synchronous motor (OW-PMSM) fed by hybrid inverter (HI). The HI usually consists of two six-switch three-phase inverters (SSTPIs), the inverter powered by a DC source is named as main inverter (MI) and the inverter powered by a capacitor is named as compensation inverter (CI). When a power switch or a leg of CI fails, the CI can be reconfigured to a four-switch three-phase inverter (FSTPI). Since the phase current flows through the two capacitors in the FSTPI, it would introduce the neutral-point voltage fluctuation. By taking the unexpected neutral-point voltage fluctuation into account, a simplified PWM strategy is designed for the FSTPI, which can guarantee the high-quality voltages and currents even at the low speed states, it can also reduce the computation time of the system. Simulation studies have been carried out to verify the effectiveness and superiorities of the proposed strategy.
| Original language | English |
|---|---|
| Title of host publication | 2015 IEEE Energy Conversion Congress and Exposition |
| Publisher | IEEE |
| Pages | 2912-2918 |
| Number of pages | 7 |
| ISBN (Electronic) | 978-1-4673-7151-3, 978-1-4673-7150-6 |
| DOIs | |
| Publication status | Published - 29 Oct 2015 |
| Externally published | Yes |
| Event | 7th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2015 - Montreal, Canada Duration: 20 Sept 2015 → 24 Sept 2015 |
Conference
| Conference | 7th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2015 |
|---|---|
| Country/Territory | Canada |
| City | Montreal |
| Period | 20/09/15 → 24/09/15 |
Keywords
- simplified PWM
- hybrid inverter
- fault tolerant control