전력전자학회논문지 (The Transactions of the Korean Institute of Power Electronics)

  • 제3권2호
  • /
  • Pages.118-124
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  • 1998
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  • 1229-2214(pISSN)
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  • 2288-6281(eISSN)
전력전자학회 (The Korean Institute of Power Electronics)
권호 표지

공간벡터 PWM에서 과변조시 출력전압의 선형화 및 고조파 분석

Linearization and harmonic analysis of output voltages in overmodulation range of space vector PWM

  • 이지명 (영남대 대학원 전기공학과) ;
  • 이동춘 (영남대 공대 전기전자공학부 조교수 및 미국 Texas A&M Univ. 방문)
  • 발행 : 1998.06.01

⟨ 이전 논문 다음 논문 ⟩

초록

This paper describes a relationship of a space vector PWM and a sinusoidal PWM and presents that the space vector PWM can produce linearly the output voltage to the unity MI(modulation index). At first, reference angles and holding angles are derived from expanding a Fourier series of the reference voltage waveform and then the angles are used for the inverter switching to linearize transfer characteristics of the inverter. In addition, the harmonic components of the output voltage are analyzed and on-line control is shown to be feasible by approximating in piecewise-linearization the reference and holding angles versus the MI. In V/f control of the induction motor, it is verified by the experiment that the motor current is changed smoothly for the variation of the inverter input voltage and the change of the reference voltage.

키워드

참고문헌

  1. IEEE Trans. on Ind. Applicat. v.20 no.5 The use of harmonic distortion to increase the output voltage of a three-phase PWM inverters J. A. Houldsworth;D. A. Grant
  2. IEEE Trans. on Ind. Applicat. v.24 no.1 Analysis and realization of PWM based on voltage space vectors H. W. van der Broek;H. C. Skudelny;G. V. Stanke
  3. IEEE Trans. on Ind. Applicat. v.27 no.6 Influence of the modulation method on the conduction and switching losses of a PWM converter system J. W. Kolar;H. Ertl;F. C. Zach
  4. IEEE IAS Conf. Rec. A hybrid PWM strategy combining modified space vector and triangle comparison methods V. Blasko
  5. IEEE APEC Conf. Rec. A high performance generalized discontinuous PWM algorithm A. M. Hava;R. J. Kerkman;T. A. Lipo
  6. IEEE Trans. on Ind. Applicat. v.27 no.3 A simplified inverter model for on-line control and simulation R. J. Kerkman;B. J. Seibel;D. M. Brod;T. M. Rowan;D. Leggate
  7. IEEE Trans. on Power Electron. v.8 no.4 On continuous control of PWM inverters in the overmodulation range including the six-step mode J. Holtz;W. Lotzkat;A. M. Khambadkone
  8. IEEE Trans. on Ind. Applicat. v.33 no.2 Novel digital continuous control of SVM inverters in the overmodulation range S. Bolognani;M. Zigliotto
  9. 대한전기학회논문지 v.46 no.5 PWM 인버터의 과변조 제어기법 이지명;이동춘;최종우