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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Yongchang Zhang Jianguo Zhu Zhengming Zhao Wei Xu Dorrell, D.G. |
| Copyright Year | 1986 |
| Abstract | A sensorless three-level neutral-point-clamped inverter-fed induction motor drive is proposed in this paper. The conventional direct torque control (DTC) switching table fails to consider the circuit limitations, such as neutral-point-balance and smooth vector switching, caused by the topology of a three-level inverter. Two kinds of modified schemes for three-level DTC are proposed to solve these problems. They also provide performance enhancement while maintaining robustness and simplicity. Fuzzy logic control and the speed-adaptive flux observer (with novel gain and load toque observation) are introduced to enhance the performance of the system. The issue of large starting current is investigated and solved by introducing the technique of preexcitation. A 32-bit fixed-point DSP-based motor drive is developed to achieve high-performance sensorless control over a wide speed range. The effectiveness of the proposed schemes is confirmed by simulation implementation and experimental validation. |
| Sponsorship | IEEE Power Electronics Society |
| Starting Page | 1502 |
| Ending Page | 1513 |
| Page Count | 12 |
| File Size | 1172599 |
| File Format | |
| ISSN | 08858993 |
| Volume Number | 27 |
| Issue Number | 3 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2012-03-01 |
| Publisher Place | U.S.A. |
| Access Restriction | One Nation One Subscription (ONOS) |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Torque control Induction motors Switching circuits Sensorless control Induction motor drives Circuit topology Inverters Robustness Fuzzy logic Control systems torque control AC motor drives adaptive observer fuzzy logic induction motor (IM) drives speed sensorless three-level inverter |
| Content Type | Text |
| Resource Type | Article |
| Subject | Electrical and Electronic Engineering |
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