Abstract
This article deals with I-f control of surface-mounted permanent magnet synchronous machine (SPMSM) drives. Conventional open-loop I-f control is poorly damped and can only operate stably with positive d-axis current. An I-f control with a new current compensation loop is proposed to achieve stable id = 0 operation in this work. The proposed method can be used for startup with a seamless transition to sensorless field-oriented-control (FOC), since id = 0 operation is already achieved before switching to FOC. In addition, as the I-f control can now maintain stable id = 0 operation against 100% rated load step disturbance from 10% to 100% rated speed, it could be a standalone control scheme for wide-speed-range operations. The proposed method is supported with detailed stability analysis and its performance is verified experimentally on a 2.7-kW SPMSM drive platform.
Original language | English |
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Journal | IEEE Transactions on Power Electronics |
Volume | 38 |
Issue number | 6 |
Pages (from-to) | 7504-7513 |
Number of pages | 10 |
ISSN | 1941-0107 |
DOIs | |
Publication status | Published - 1 Jun 2023 |
Keywords
- Efficiency
- i-f control
- scalar control
- sensorless control
- stability
- surface-mounted permanent magnet synchronous machine (SPMSM)