Utilization of CHB Multilevel Inverter for Harmonic Reduction in Fuzzy Logic Controlled Multiphase LIM Drives
سال انتشار: 1399
نوع سند: مقاله ژورنالی
زبان: انگلیسی
مشاهده: 232
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شناسه ملی سند علمی:
JR_JECEI-8-1_003
تاریخ نمایه سازی: 23 آذر 1399
چکیده مقاله:
Background and Objectives: Despite superior privileges that multiphase motors offer in comparison with their three-phase counterparts, in the field of multiphase linear induction motors (LIMs) few studies have been reported until now. To combine the advantages of both multiphase motors and linear induction motors, this paper concentrates on multiphase LIM drives considering the end effects. Methods: The main contributions of this paper can be divided into two major categories. First, a comparative study has been conducted about the dynamic performance of Fuzzy Logic Controller (FLC) and Genetic-PI controller for a seven-phase LIM drive; and second, because of the superior performance of the FLC method revealed from the results, the harmonic pollution of the FLC based LIM drive has been studied in the case of supplying through a five-level Cascaded H-bridge (CHB) VSI and then compared with the traditional two-level VSI fed one. Results: The five-level CHB-VSI has utilized a multiband hysteresis modulation scheme and the two-level VSI has used the traditional three-level hysteresis modulation strategy. Note that for harmonic distortion assessment both harmonic and interharmonic components are considered in THD calculations. Conclusion: The results validate the effectiveness of the proposed FLC for seven-phase LIM drive supplied with five-level CHB-VSI and guarantee for perfect control characteristics, lower maximum starting current, and significant harmonic and interharmonic reduction.
کلیدواژه ها:
CHB Inverter ، Fuzzy logic controller ، Linear Induction Motor (LIM) ، Multiphase LIM ، Total Harmonic Distortion
نویسندگان
P. Hamedani
Department of Railway Engineering and Transportation Planning, University of Isfahan, Isfahan, Iran
A. Shoulaei
Department of Electrical Engineering, Iran University of Science & Technology, Tehran, Iran.
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