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This paper presents simple and easily realizable techniques for implementation of a PI and Fuzzy Logic controller based efficiency optimization algorithm for a vector controlled induction motor drive. This is obtained by optimal control of the flux current component of the IM drive to reduce the core losses under light load conditions. A new approach to optimize the efficiency based on optimal control of iron losses only is introduced and compared with the optimal control of the total losses. The developed algorithm is simulated using MATLAB\/Simulink and is tested under different operating conditions.<\/jats:p>","DOI":"10.3233\/jifs-169799","type":"journal-article","created":{"date-parts":[[2018,7,27]],"date-time":"2018-07-27T19:28:49Z","timestamp":1532719729000},"page":"5159-5167","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":2,"title":["Efficiency optimization of PI and fuzzy controller based induction motor drive"],"prefix":"10.1177","volume":"35","author":[{"family":"Rajinder","sequence":"first","affiliation":[{"name":"Department of Electrical Engineering, Guru Nanak Dev Institute of Technology, Rohini, Delhi, India"}]},{"given":"Mini","family":"Sreejeth","sequence":"additional","affiliation":[{"name":"Department of Electrical Engineering, DTU, Delhi, India"}]},{"given":"Madhusudan","family":"Singh","sequence":"additional","affiliation":[{"name":"Department of Electrical Engineering, DTU, Delhi, India"}]}],"member":"179","published-online":{"date-parts":[[2018,7,26]]},"reference":[{"key":"e_1_3_1_2_2","doi-asserted-by":"publisher","DOI":"10.1109\/TIE.2017.2752120"},{"key":"e_1_3_1_3_2","doi-asserted-by":"publisher","DOI":"10.4236\/epe.2011.32014"},{"issue":"5","key":"e_1_3_1_4_2","article-title":"An efficiency-optimization controller for induction motor drives","volume":"18","author":"Benbouzid M.E.H.","year":"1998","unstructured":"BenbouzidM.E.H. and NaitN.S., An efficiency-optimization controller for induction motor drives, IEEE Power Engg Review18 (5) (1998).","journal-title":"IEEE Power Engg Review"},{"key":"e_1_3_1_5_2","doi-asserted-by":"publisher","DOI":"10.1109\/OPTIM.2017.7974992"},{"key":"e_1_3_1_6_2","doi-asserted-by":"publisher","DOI":"10.3233\/JIFS-161718"},{"key":"e_1_3_1_7_2","doi-asserted-by":"publisher","DOI":"10.1080\/00207217.2011.643494"},{"key":"e_1_3_1_8_2","first-page":"175","volume-title":"4th Int Conf on IEEE (PEEED)","author":"Zineb R.","year":"2013","unstructured":"ZinebR., FatihaZ. and BachirA., Fuzzy efficiency enhancement of induction motor drive, 4th Int Conf on IEEE (PEEED), 2013, pp. 175\u2013180."},{"issue":"2","key":"e_1_3_1_9_2","first-page":"93","article-title":"A new method for losses minimization in ifoc induction motor drives","volume":"1","author":"Mehdi D.","year":"2010","unstructured":"MehdiD. and LassaadS., A new method for losses minimization in ifoc induction motor drives, Int J of Systems Control1 (2) (2010), 93\u201399.","journal-title":"Int J of Systems Control"},{"key":"e_1_3_1_10_2","doi-asserted-by":"publisher","DOI":"10.1109\/IECON.2017.8216895"},{"key":"e_1_3_1_11_2","first-page":"737","article-title":"Efficiency optimization of induction motor drive using fuzzy logic and genetic algorithms","author":"Rouabah Z.","year":"2008","unstructured":"RouabahZ., ZidaniF. and ZidaniB., Efficiency optimization of induction motor drive using fuzzy logic and genetic algorithms, IEEE Int Symposium on Ind Elex, 2008, pp. 737\u2013742.","journal-title":"IEEE Int Symposium on Ind Elex"},{"key":"e_1_3_1_12_2","doi-asserted-by":"crossref","unstructured":"LiuY. and Bazzi AliM. 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