Transcription of ABB drives, Technical guide No. 1 Direct torque control ...
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ABB drives, Technical guide No. 1 Direct torque control ...
Technical guide No. 1 Direct torque control -the world s most advanced AC drive technologyABB drives2 Direct torque control | Technical guide No. 1 Technical guide No. 1 | Direct torque control 3 Copyright 2011 ABB. All rights subject to change without notice. 3 AFE58056685 REV C guide No. 1 Direct torque control - the world s most advanced AC drive technology4 Direct torque control | Technical guide No. 1 Technical guide No. 1 | Direct torque control 5 ContentsChapter 1 - Introduction ..7 General ..7 This manual s purpose ..7 Using this guide ..7 What is a variable speed drive? ..8 Summary ..8 Chapter 2 - Evolution of Direct torque control ..8DC motor drives ..9 Features ..9 Advantages ..9 Drawbacks ..10AC drives - introduction.
in torque control mode, the speed is determined by the load. Likewise, when operated in speed control, the torque is deter-mined by the load. Initially, DC motors were used as VSDs because they could eas-ily achieve the required speed and torque without the …
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