벡터제어 유도전동기의 최대효율 운전

Maximum Efficiency Drive of Vector-Controlled Induction Motors

  • 발행 : 1996.11.01

초록

This paper proposes the control algorithm for maximum efficiency drive of PWM inverter - induction motor system with high dynamic performance. If the induction motor is driven under light load with rated magnetizing current, the Iron loss is excessively large compared with the codder loss which results in doer motor efficiency. Maximum efficiency drive of an induction motor can be achieved by controlling the magnetizing current to satisfy the optimal ratio that leads the total motor loss to be a minimum value at a given speed. The proposed control algorithm essentially uses vector control technique and adopts voltage decoupling control strategy to prevent the degradation of dynamic performance due to reduced magnetizing current. To verify the proposed method, digital simulations and experiments are carried out for a squirrel-cage induction motor with the rating of 2.2[kW].

키워드

참고문헌

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  3. IEEE Trans. on Industry Applications v.IA-21 no.4 On-Line Efficiency Optimization of a Variable Frequency Induction Motor Drive D.S.Kirschen;D.W.Novotny;T.A.Lipo
  4. IEEE Trans. on Industrial Electronics v.IE-42 no.2 Fuzzy Logic Based On-Line Efficiency Optimization Control of an Indirect Vector-Controlled Induction Motor Drive G.C.D.Sousa;B.K.Bose;J.G.Cleland
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