The Improvement of Transient State Characteristics with Voltage Type PWM Conbverter Control

전압형 PWM 컨버터 제어에의한 과도상태의 특성 개선

  • 이상일 (조선대학교 전기제어계측공학부) ;
  • 이진섭 (첨단시스템 근무) ;
  • 백형래 (조선대학교 전기제어계측공학부)
  • Published : 1999.06.01

Abstract

The problem of power factor and hmmonics are occurred in convelter system which used to SCRs and diodes as p power semiconductor devices. IGBT power device with selh:ommutation type was solved that problem. maintain the l input line current with sinusoidal wave CUlTent of input power source voltage. It was estimated that improvement of t transient state characteristics with feedfolward compensator added in the diode rectifier with single phase voltage type i inverter was used to simulation load. As a results it was verified that the transient state characteristics with voltage t type PWM convelter control was improved.

일반적으로 컨버터 장치로서 사용되고 있는 전력용 반도체 소자인 SCR이나 diode를 사용할 때 역률과 고조파의 문제를 야기 시킨다. 이러한 문제점을 해결하기 위해 자기소호형 소자인 IGBT등을 사용하여 입력측 선전류를 입력 전원전압과 동상인 정현파 전류로 유지함으로써 역률과 고조파에 대한 문제를 해결 하였다. 본 논문에서는 컨버터 출력측 직류전압 제어기에 부하전류 전향보상기(feedforward compensator)를 부가하여 출력측에 다이오드 정류기가 부가된 단상 전압형 인버터를 부하로 사용하여 보상기 부가에 따른 과도상태특성을 개선하였으며 전압형 PWM 컨버터 제어에 의한 특성을 시뮬레이션 및 실험 결과를 통하여 확인 하였다.

Keywords

References

  1. IEEE IECON '92 Appication Trends in AC Motor Drives K.Kenzo;O.Tsutomu;S.takashi
  2. Automation v.22 Microcomputer Control of High Dynamic Performance W.Leonhard
  3. IEEE IECON '90 Base/Gate Drive Suppression of Inactive Power Devices of a Voltage-Fed Inverter and Precision Synthesis of AC Voltage and DC Link Currnet Wave R.P.Joshi;B.K.Bose
  4. European Conference on Power Electron and Application v.1 Power Quality, Power Electronic and Control Van Wyk, J.D.
  5. IEEE Trans. Application v.1A-24 no.1 Analysis and Realization of a Pulse with Modulator on Voltage Space Vectors H.W.Van der Broeck;H.C.Skudelny
  6. IEEE Trans. on Power Electronics v.PE-5 no.1 PW, Technique for Inverter with Sinusoidal Output Current S.Fukuda;Y.Iwaji;H.Hasegawa
  7. EPE Conf. Rec-3 Analysis of the Harmonics in Voltage Fed Inverter Drives Caused by PWM Schemes with Discontinuous Switching Operation H.W.Van der Broeck