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A high-performance synchronous motor field-oriented control system

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5 Author(s)
Li Chongjian ; Automation Res. Inst. of Metall. Minist., Beijing, China ; Zhu Chunyi ; Li Yaohua ; Li Fahai
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The paper introduces a damper flux-oriented control method of synchronous machines, and develops a mathematical model of a synchronous motor with damper flux-oriented control. It is proved through theoretical analysis and experiments that a damper flux-oriented drive system has the same steady performance as that achieved with airgap flux-oriented control; moreover the damper flux is not sensitive to the harmonics of the stator currents, and by using the feedback value, the dynamic performances of the drive system can be improved. A 2500 kW 12/6 Hz cycloconverter synchronous motor drive system with damper flux-oriented control has been manufactured and applied in rolling mills in China. The cycloconverter consists of three sets of antiparallel six-pulse bridge rectifiers without circulating current

Published in:

Power Electronics and Drive Systems, 1995., Proceedings of 1995 International Conference on

Date of Conference:

21-24 Feb 1995