Abstract
This article proposes a novel sensorless adjustable-speed PMSM system. The PMSM system is fed by an ac/ac matrix converter. A standstill starting technique and a flux/rotor estimating technique are proposed. First, by injecting a three-phase detecting voltage signal, the region of the initial shaft position of the PMSM can be obtained. Then, a flux/rotor position estimating technique is used to detect on-line the shaft angle of the PMSM. After that, as a result, a closed-loop PMSM drive system, is achieved. A 32-bit TMS320C40 digital signal processor is used to execute the starting and rotor position estimating techniques and all of the control loops including a current-loop and a speed-loop. The details are discussed in this article. Several experimental results are shown to validate the theoretical analysis.
Original language | English |
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Pages (from-to) | 877-893 |
Number of pages | 17 |
Journal | Electric Power Components and Systems |
Volume | 33 |
Issue number | 8 |
DOIs | |
Publication status | Published - 2005 Aug 1 |
All Science Journal Classification (ASJC) codes
- Energy Engineering and Power Technology
- Mechanical Engineering
- Electrical and Electronic Engineering