The Transactions of the Korean Institute of Electrical Engineers B (대한전기학회논문지:전기기기및에너지변환시스템부문B)

The Korean Institute of Electrical Engineers (대한전기학회)
권호 표지

An Improved Voltage Control Scheme for DC-Link Voltage Balancing in a Four-Level Inverter

4-레벨 인버터의 DC-링크 전압 균형을 위한 향상된 전압 제어 기법

  • Published : 1999.10.01
Download PDF
⟨ Previous Next ⟩

Abstract

Multi-level inverters are now receiving widespread interest form the industrial drives for high power variable speed applications. Especially, for the high power variable speed applications, a diode clamped multi-level inverter has been widely used. However, it has the inherent problem that the voltage of the link capacitors fluctuates. This paper describes a voltage control scheme effectively to suppress the DC-link potential fluctuation for a diode clamped four-level inverter. The current to flow from/into the each link capacitor is analyzed and the operation limit is obtained when a conventional SVPWM is used. To overcome the operation limit, a modified carrier-based SVPWM is proposed. Various simulation and experiment results are presented to verify the proposed voltage control scheme for DC-link voltage balancing.

Keywords

References

  1. IEEE Trans. on Industry Applications v.17 no.5 A New Neutral-Point-Clamped PWM Inverter A. Nabae;I. Takahashi;H. Akagi
  2. IEEE-PESC Conf. Rec. Multi-level Conversion: High Voltage Chopper and Voltage-Source Inverters T. A. Meynard;H. Foch
  3. IEEE-PESC Conf. Rec. A Non Conventional Power Converter for Plasma Stabilization M. Marchesoni;M. Mazzucchelli;S. Tenconi
  4. IEEE Trans. on Industry Applications v.32 no.2 A Novel PWM Scheme for a Three-Level Voltage Source Inverter with GTO Thyristors Yo-Han Lee;Bum-Seok Suh;Dong-Seok Hyun
  5. IEEE-IAS Conf. Rec. Analysis of Variation of Neutral Point Potential in Neutral-Point-Clamped Voltage Source PWM Inverters S. Ogasawara;H. Akagi
  6. IEEE-IAS Conf. Rec. Neutral Point Control for Multi-Level Inverters: theory, design and operational limitations C. Newton;M. Sumner
  7. IEEE-PESC Conf. Rec. A Four Level Inverter Based Drive with a Passive Front End G. Shinha;T. A. Lipo
  8. IEEE-PESC Conf. Rec. Optimal Modulation Techniques For The Generalized N-level Converter M. Fracchia;T. Ghiara;M. Marchesoni;M. Mazzuchelli
  9. IEEE Trans. On Industry Applications v.30 no.4 Five level GTO Inverters for large Induction Motor Drives R. W. Menzies;P. Steimer;J. K. Steinke
  10. IEE-EPA Proc. v.142 no.6 PWM control method for a four-level inverter R. Rojas;T. Ohnishi;T. Suzuki
  11. IEEE-IECON conf. Rec. ABOUT THE DC-LINK CAPACITORS VOLTAGE BALANCE IN MULTI-POINT CLAMED CONVER TERS M. Marchesoni;M. Mazzucchelli;P. Tenca
  12. IEEE-IECON Conf. Rec. Improved DC Bus Utilization in Hard and Soft Switched Multilevel Inverters G. Shinha;T. A. Lipo
  13. IEEE-APEC Conf. Rec. A Novel SVPWM Strategy Considering DC-link Balancing for a Multi-level Voltage Source Inverter Y. H. Lee;R. Y. Kim;D. S. Hyun
  14. IEEE-IAS Conf. Rec. Novel Multilevel Inverter Carrier-Based PWM Methods L. M. Tolbert;T. G. Habetler
  15. IEEE-IAS Conf. Rec. Neutral Point Control for Multi-Level Inverters: theory, design and operational limitations C. Newton;M. Sumner