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http://dx.doi.org/10.5762/KAIS.2012.13.11.5416

A Study on Speed Control by means of voltage·current model complex flux estimator  

Hwang, Lark-Hoon (Dept. of Electrical Engineering, Semyoung University)
Na, Seung-Kwon (Dept. of Biomedical Engineering, korea Polytechnics College)
Choi, Song Shik (Dept. of Electrical Engineering, Semyoung University)
Publication Information
Journal of the Korea Academia-Industrial cooperation Society / v.13, no.11, 2012 , pp. 5416-5426 More about this Journal
Abstract
This study uses the algorithm which estimates the magnetic flux using different models in the low speed driving area and the high speed driving area by the voltage-current model synthesis magnetic flux Estimator and, from this result, estimates the magnetic flux angle to achieve the stable speed control through all the areas from the low speed to the high speed drive. In particular, the current change and the magnetic flux change under variable load were estimated in real time in the low speed area and this made the control characteristic improved in the low speed area. According to this, even under variable load, the more stable simulation and experiment could have been completed using PI current controller and PI flux controller in all the areas. As a result, the outstanding speed control characteristic has been achieved.
Keywords
flux estimator; flux angle; PI current controller; PI flux controller; voltage-current model synthesis;
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