Improvement of DTC of induction motors by using a three-level inverter and fuzzy speed controller
作者： Oualid Aissa , Samir Moulahoum , Nadir Kabache , Hamza Houassine , None
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摘要: The direct torque control of induction motor has good dynamic performance and flux. However, the switching frequency (in case conventional DTC) is variable difficult to due use hysteresis controllers. This lack over origin flux ripples. Similarly, a voltage inverter with two levels limits power drive system. To overcome these problems, we propose study in this paper modified DTC approach which three-level (NPC structure) instead two-level PI fuzzy controller classic controller. allows not only minimizing undulations but also getting higher range system giving an intelligence control.
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