Abstract
To extend the constant power range and enlarge the output power of permanent magnet synchronous motor (PMSM) system fed by a single power source, an improved direct torque control (DTC) strategy is proposed for the open winding PMSM (OW-PMSM) system fed by hybrid inverter. The hybrid inverter system is composed of a main inverter powered by a DC voltage power source and a compensation inverter powered by a floating capacitor. A modified strategy using the main inverter voltage as the feedback is proposed to maintain the maximum voltage of main inverter and modify the stator flux linkage reference for the flux weakening operation. Moreover, the voltage references for two inverters are distributed appropriately to extend the constant power range and enlarge the output power of the OW-PMSM. Simulation results verify the effectiveness and superiorities of the proposed strategy.
| Original language | English |
|---|---|
| Title of host publication | 2014 17th International Conference on Electrical Machines and Systems, ICEMS 2014 |
| Publisher | IEEE |
| Pages | 2917-2922 |
| Number of pages | 6 |
| ISBN (Electronic) | 978-1-4799-5162-8 |
| DOIs | |
| Publication status | Published - 19 Jan 2015 |
| Externally published | Yes |
| Event | 17th International Conference on Electrical Machines and Systems - Hangzhou, China Duration: 22 Oct 2014 → 25 Oct 2014 |
Conference
| Conference | 17th International Conference on Electrical Machines and Systems |
|---|---|
| Abbreviated title | ICEMS |
| Country/Territory | China |
| City | Hangzhou |
| Period | 22/10/14 → 25/10/14 |
Keywords
- Inverters
- Stators
- Couplings
- Torque
- Voltage control
- Reactive power
- Power generation