NDLI: The rapid soft re-switching technology of three-phase induction motors

Content Provider	IEEE Xplore Digital Library
Author	Xueshen Cui Yingli Luo Ling Wu Yulei Yang Zhenhua Zhou Xiaofang Liu
Copyright Year	2008
Description	Author affiliation: Sch. of Electr. & Electron. Eng., North China Electr. Power Univ., Beijing (Xueshen Cui; Yingli Luo; Ling Wu; Yulei Yang; Zhenhua Zhou; Xiaofang Liu)
Abstract	For induction motor rotating near the synchronous speed, re-switching of power supply could be realized by rapid soft re-switching technology which could eliminate or reduce the inrush current and torque. The intelligent hybrid switches(IHS) based on SCRs is used to implement the control strategy of rapid soft re-switching with series of firing angles. Aiming at the alternating state of soft re-switching transient current, the unbalanced model of three-phase induction motor is established in alphabeta0 reference frame for two phase windings connected, and the balanced model is presented with space vector for three phase windings connected. By means of the analytical method, the relationship between the initial half-wave peak value of transient current and initial firing angles of SCRs is given and the speed influencing is studied. After the initial firing angles are determined, the subsequent firing angles are obtained with even step length which could be calculated at given speed. Finally, the control strategy of rapid soft re-switching with series of firing angles is validated by numerical simulation and experimental results.
Starting Page	1053
Ending Page	1058
File Size	575514
Page Count	6
File Format	PDF
ISBN	9781424438266
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-10-17
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	IEEE Consumer Electronics Society(CES)
Subject Keyword	Induction motors Synchronous motors Torque Power supplies Surge protection Switches Optimal control Voltage Power engineering and energy Transient analysis
Content Type	Text
Resource Type	Article

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Switching Transients in Single-Phase Induction Motors [includes discussion]

Application of capacitors for power-factor improvement of induction motors

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A new switching technique for Direct Torque Control of Induction Motor using Four-Switch Three-Phase Inverter with DC - link voltage imbalance

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Performance evaluation of variable speed control of two-phase induction motors

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The rapid soft re-switching technology of three-phase induction motors

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