期刊
IEEE TRANSACTIONS ON POWER ELECTRONICS
卷 36, 期 4, 页码 4560-4571出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TPEL.2020.3025184
关键词
Electromagnetics; Torque; Induction machines; Support vector machines; Inductance; Control systems; Couplings; Linear induction machine (LIM); maximum thrust per ampere (MTPA); sliding mode direct thrust control (SM-DTC)
资金
- National Natural Science Foundation of China [51877093, 51707079]
- National Key Research andDevelopment Program of China [2018YFE0100200]
- Key Technical Innovation Program of Hubei Province [2019AAA026]
A robust speed control strategy using sliding mode direct thrust control (SM-DTC) and an improved maximum thrust technique were proposed for achieving faster speed tracking and lower thrust ripple in the linear induction machine. Comprehensive comparisons were made, confirming the advantages of the proposed method.
In order to achieve faster speed tracking ability with lower thrust ripple for the linear induction machine (LIM), one robust speed control strategy using sliding mode direct thrust control (SM-DTC) is first proposed based on the space vector modulation (SVM) technique with the secondary flux-linkage orientation. Then, one improved maximum thrust per ampere technique is presented to further minimize the primary current and copper loss under the constant output thrust. Full comparison has been made among the proposed SM-DTC, the conventional DTC and field orientation control methods in different typical working states. Comprehensive simulation and experiments have been done on the basis of two 3 kW arc induction machines (as one demonstration prototype for the real LIM), which adequately confirm that the proposed method can successfully get faster dynamic response with lower thrust ripple.
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