期刊名称：TELKOMNIKA (Telecommunication Computing Electronics and Control)
印刷版ISSN：2302-9293
出版年度：2019
卷号：17
期号：1
页码：417-424
DOI：10.12928/telkomnika.v17i1.8818
出版社：Universitas Ahmad Dahlan
摘要：In constant V/f control technique it is assume that the stator resistance and leakage inductance
drops are negligible, especially at high speed and small load. In other words, the back emf is
comparatively large at high speed and hence these voltage drops can be neglected. By maintaining
constant V/f, constant Eg/f and hence constant air-gap flux is assumed. This assumption is however invalid
at low speeds since a significant voltage drop appears across the stator impedance. The terminal voltage,
V no longer approximates ag. By using MATLAB Simulink, the open-loop constant V/f is simulated. It is
shown that the performance of the drive deteriorates at low speeds. The improvement in the performance
by applying voltage boost is shown and discussed.
其他摘要：In constant V/f control technique it is assume that the stator resistance and leakage inductance drops are negligible, especially at high speed and small load. In other words, the back emf is comparatively large at high speed and hence these voltage drops can be neglected. By maintaining constant V/f, constant Eg/f and hence constant air-gap flux is assumed. This assumption is however invalid at low speeds since a significant voltage drop appears across the stator impedance. The terminal voltage, V no longer approximates ag. By using MATLAB Simulink, the open-loop constant V/f is simulated. It is shown that the performance of the drive deteriorates at low speeds. The improvement in the performance by applying voltage boost is shown and discussed.
