Abstract
In this paper, direct torque control (DTC) of a threephase permanent magnet (PM) brushless AC (BLAC) motor having one phase open-circuit fault is described. An extra inverter leg is employed to provide the current path during the fault operation. The new flux estimation algorithm for the faulty motor is presented. The simulation results show that the proposed DTC yields satisfactory torque and flux control. The performance of the developed system is verified by experiments on a prototype system. In addition, the influence of low pass filter, sampling time delay, as well as the unbalanced phase back-emf waveforms is investigated, while the difference in DTC performance between healthy and faulty systems is also discussed and corresponding simulated and measured results presented.
Original language | English |
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Title of host publication | 2009 IEEE International Electric Machines and Drives Conference, IEMDC '09 |
Publisher | IEEE Computer Society |
Pages | 1180-1187 |
Number of pages | 8 |
ISBN (Electronic) | 9781424442522 |
ISBN (Print) | 9781424442515 |
DOIs | |
Publication status | Published - 16 Jun 2009 |
Externally published | Yes |
Event | 2009 IEEE International Electric Machines and Drives Conference - Miami, United States Duration: 3 May 2009 → 6 May 2009 |
Conference
Conference | 2009 IEEE International Electric Machines and Drives Conference |
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Abbreviated title | IEMDC '09 |
Country/Territory | United States |
City | Miami |
Period | 3/05/09 → 6/05/09 |