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The Research on Adjustable Speed Driving Control and It’s Effect on Inductive Motor
Author: ChenZhiGen
Tutor: HanMinXiao
School: North China Electric Power University (Beijing)
Course: Proceedings of the
Keywords: high voltage ASD pulse latching PWM motor harmonic
CLC: TM921.5
Type: Master's thesis
Year: 2005
Downloads: 324
Quote: 2
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Abstract
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Some negative effect is brought to the motor because of the application of highvoltage adjustable speed device (ASD). Pulse latching is usually used to protect thepower electronic device when a high voltage ASD occurs over-current fault. Twodifferent pulse latching methods of high voltage ASD and their different effect on amotor are analyzed in this paper, and also a new pulse latching method is putforward. Experiment voltage wave and MATLAB simulation result of the model highvoltage ASD are given in the present paper, theory analysis and a new effective pulselatching method is verified. The output voltage of multilevel high voltage ASD has much harmonics. Linevoltage wave and frequency characteristic can be showed from MATLAB simulationof representative PWM multilevel inverter circuit. The basic harmonicscharacteristic of representative multilevel PWM inverter circuit is summarized; theeffect of harmonics on motor is analyzed too. Finally some methods of improving thenegative effect caused by the application of ASD are proposed in the present paper.
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CLC: > Industrial Technology > Electrotechnical > Electrification,electrical energy application > Electric drive ( electric drive ) > Control system
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