KIEE International Transactions on Power Engineering

대한전기학회 (The Korean Institute of Electrical Engineers)
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Analysis on the Switching Surge Characteristics of a High-Voltage Induction Motor Fed by PWM Inverter Using EMTP

  • Kim Jae-Chul (Dept. of Electrical Engineering, Soongsil University) ;
  • Song Seung-Yeop (Dept. of Electrical Engineering, Soongsil University) ;
  • Lee Do-Hoon (LG Industrial Systems, Advanced Power Equipment Research LAB.)
  • 발행 : 2005.03.01
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초록

The PWM inverter drive may cause an over voltage at the motor terminal, which imposes severe electric stresses on the inter-turn insulation of motor windings. Unlike low-voltage induction motors, high-voltage induction motors have a stator type of form-wound coil for insulation and are insulated to the slot and the coil. So, this paper presents a PWM 3-level inverter, H-Bridge cascaded 7-level inverter and High-voltage induction motor model. It then analyzes the voltage that generates at the input terminal of the high-voltage induction motor fed by each inverter. Also, in order to examine a factor that influences the switching surge voltage, this paper proposes the system equivalent model and performs the case studies using EMTP.

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참고문헌

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