Direct torque control of matrix converter-fed permanent magnet synchronous motor drives based on master and slave vectors
- Author(s): Yan Yan 1 ; Jiaxin Zhao 1 ; Changliang Xia 1, 2 ; Tingna Shi 1
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View affiliations
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Affiliations:
1:
School of Electrical Engineering and Automation, Tianjin University, Tianjin, 300072, People's Republic of China;
2: Tianjin Key Laboratory of Advanced Technology of Electrical Engineering and Energy, Tianjin Polytechnic University, Tianjin 300387, People's Republic of China
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Affiliations:
1:
School of Electrical Engineering and Automation, Tianjin University, Tianjin, 300072, People's Republic of China;
- Source:
Volume 8, Issue 2,
February 2015,
p.
288 – 296
DOI: 10.1049/iet-pel.2014.0031 , Print ISSN 1755-4535, Online ISSN 1755-4543
© The Institution of Engineering and Technology
Received
13/01/2014,
Accepted
05/08/2014,
Revised
04/04/2014,
Published
19/11/2014
A novel direct torque control strategy is proposed for matrix converter (MC)-based permanent magnet synchronous motor drive systems, which can achieve smooth control of torque and flux with fixed switching frequency. Analytical expression of torque and flux corresponding to different MC voltage vectors are derived. Evaluation functions for torque and flux are established. A master-vector and a slave-vector are selected from a switching table, whose duty cycles are calculated by the evaluation functions. Experiments with a prototype are carried out. The results show that the proposed method can achieve smooth torque and flux performance and fast dynamic response.
Inspec keywords: permanent magnet motors; torque control; dynamic response; machine vector control; synchronous motor drives; magnetic flux; matrix convertors
Other keywords: switching frequency; dynamic response; MC voltage vectors; master-vector; flux control; matrix converter-fed permanent magnet synchronous motor drives; switching table; direct torque control strategy; slave-vector
Subjects: AC-AC power convertors; Mechanical variables control; Drives; Synchronous machines; Control of electric power systems; Power electronics, supply and supervisory circuits
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