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Regeneration for AC drive systems
Proceedings of 1994 IEEE/IAS Annual Textile, Fiber and Film Industry Technical Conference, 2002The need for regenerated voltage control of an AC variable speed drive occurs when a mechanical system connected to an induction motor causes the motor to rotate at a higher frequency than the control frequency of the variable speed providing power to the motor.
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AC drive technology for locomotives
Proceedings., Technical Papers Presented at the IEEE/ASME Joint Railroad Conference, 2003The author describes the use of GTO (gate turn-off) thyristors and microprocessor technology in connection with three-phase AC drive engineering for locomotives. The high power ratings of these devices, combined with efficient evaporation-bath cooling methods, have reduced the size and weight of the necessary powerful onboard converter equipment; AC ...
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AC Drives in Traction Applications
IEEE Transactions on Industry Applications, 1986DC motors and drives have previously been the choice for traction applications. The desire to use an induction motor in similar applications has been unfulfilled due to the absence of a suitable ac drive controller that could fully exploit the economical, rugged, and simple ac induction motor.
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Advances in AC drive technology
Proceedings of IEEE Technical Conference on Rubber and Plastics Industry, 2002Today, the adjustable speed AC drive industry is experiencing dynamic advances in applying various new technologies to standard drives which were historically confined to research labs. These advances are leading to many practical benefits for the users of this type of equipment including: lower initial costs, smaller size, robustness to eliminate ...
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Power electronics for ac drives
2010This chapter discusses power electronics for AC drives. Integration of power electronic systems today is at the stage where a single integrated power module consisting of a full active bridge of power semiconductors, integrated gate drivers, and fault detection and reporting logic is available off the shelf.
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IEEE Transactions on Industry Applications, 1974
This paper indicates the market for a van-type electric vehicle, provides the physical description, and presents the electrical principle of operation of a frequency modulated and pulsewidth modulated power system applied to a 27-kW three-phase squirrelcage age induction motor.
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This paper indicates the market for a van-type electric vehicle, provides the physical description, and presents the electrical principle of operation of a frequency modulated and pulsewidth modulated power system applied to a 27-kW three-phase squirrelcage age induction motor.
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Parallel pathways for recruiting effector proteins determine centromere drive and suppression
Cell, 2021Derek Stefanik +2 more
exaly
Forty-First Annual Conference of Electrical Engineering Problems in the Rubber and Plastics Industries, 2003
The basic conceptual principles of operation of vector-controlled AC drives and field-oriented controllers are presented, and the direct and indirect implementations are briefly described. The key performance capability of torque control is emphasized, and mention is made of the difficulties in achieving the desired performance arising from feedback ...
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The basic conceptual principles of operation of vector-controlled AC drives and field-oriented controllers are presented, and the direct and indirect implementations are briefly described. The key performance capability of torque control is emphasized, and mention is made of the difficulties in achieving the desired performance arising from feedback ...
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Effect of drive control on dynamic characteristics of spacecraft tracking-drive flexible systems
Mechanical Systems and Signal Processing, 2021Li Dong-Xu, Guo Xin
exaly