Capacitor voltage balancing control based on CPS-PWM of Modular Multilevel Converter

As a new generation of high-capacity Voltage Source Converter (VSC), Modular Multilevel Converter (MMC) is a potential topology of VSC based High Voltage Direct Current Transmission System (VSC-HVDC). This paper focuses on the voltage balancing control of floating dc capacitors based on CPS-PWM. The imbalance mechanics of capacitor voltage between and within arms are theoretically revealed. A new balancing control strategy called Capacitor Voltage Balancing Control Loop (CVBC Loop) is proposed, which can directly and accurately regulate the active power injected into the MMC module to guarantee dc voltage balance of capacitors within the same arm. A 10kVA laboratory prototype has been built. The experiment results verify the validity of the proposed control strategy under both steady and dynamic state.

[1]  Wu-chen Wu,et al.  Investigation on the long term reliability of power IGBT modules , 1995, Proceedings of International Symposium on Power Semiconductor Devices and IC's: ISPSD '95.

[2]  Sankalita Saha,et al.  Towards Accelerated Aging Methodologies and Health Management of Power MOSFETs (Technical Brief) , 2009 .

[3]  Rainer Marquardt,et al.  An innovative modular multilevel converter topology suitable for a wide power range , 2003, 2003 IEEE Bologna Power Tech Conference Proceedings,.

[4]  Marc Hiller,et al.  Modulation, Losses, and Semiconductor Requirements of Modular Multilevel Converters , 2010, IEEE Transactions on Industrial Electronics.

[5]  T.A. Lipo,et al.  A strategy for improving reliability of field oriented controlled induction motor drives , 1991, Conference Record of the 1991 IEEE Industry Applications Society Annual Meeting.

[6]  M. Turk,et al.  Eigenfaces for Recognition , 1991, Journal of Cognitive Neuroscience.

[7]  Mariusz Malinowski,et al.  Comparison of 2.3-kV Medium-Voltage Multilevel Converters for Industrial Medium-Voltage Drives , 2007, IEEE Transactions on Industrial Electronics.

[8]  Rainer Marquardt,et al.  A New Single Phase AC/AC-Multilevel Converter for Traction Vehicles Operating On Ac Line Voltage , 2004 .

[9]  Krishna Shenai,et al.  Failure mechanisms of IGBTs under short-circuit and clamped inductive switching stress , 1999 .

[10]  P. Pavana Kumar,et al.  A novel scheme for protection of power semiconductor devices against short circuit faults , 1994, IEEE Trans. Ind. Electron..

[11]  J. Black,et al.  Electromigration—A brief survey and some recent results , 1969 .

[12]  J. Stathis,et al.  Dielectric breakdown mechanisms in gate oxides , 2005 .

[13]  Mauro Ciappa,et al.  Selected failure mechanisms of modern power modules , 2002, Microelectron. Reliab..

[14]  Hamid A. Toliyat,et al.  Analysis and simulation of five-phase variable-speed induction motor drives under asymmetrical connections , 1998 .

[15]  M. Pecht,et al.  Identification of failure precursor parameters for Insulated Gate Bipolar Transistors (IGBTs) , 2008, 2008 International Conference on Prognostics and Health Management.

[16]  Makoto Hagiwara,et al.  Theoretical analysis and control of the modular multilevel cascade converter based on double-star chopper-cells (MMCC-DSCC) , 2010, The 2010 International Power Electronics Conference - ECCE ASIA -.

[17]  Antonio Marcus Nogueira Lima,et al.  Fault detection of open-switch damage in voltage-fed PWM motor drive systems , 2003 .

[18]  Rainer Marquardt,et al.  A new AC/AC multilevel converter family , 2005, IEEE Transactions on Industrial Electronics.

[19]  J. Celaya,et al.  Towards Prognostics of Power MOSFETs: Accelerated Aging and Precursors of Failure , 2010 .

[20]  V.G. Agelidis,et al.  VSC-Based HVDC Power Transmission Systems: An Overview , 2009, IEEE Transactions on Power Electronics.

[21]  Reza Iravani,et al.  Dynamic performance of a modular multilevel back-to-back HVDC system , 2010, 2011 IEEE Power and Energy Society General Meeting.

[22]  D. L. Goodman.  Prognostic methodology for deep submicron semiconductor failure modes , 2001 .

[23]  J. Holtz,et al.  Pulsewidth modulation for electronic power conversion , 1994, Proc. IEEE.

[24]  D. Maksimovic,et al.  Online Health Monitoring in Digitally Controlled Power Converters , 2007, 2007 IEEE Power Electronics Specialists Conference.

[25]  A. Hamidi,et al.  Reliability and lifetime evaluation of different wire bonding technologies for high power IGBT modules , 1999 .

[26]  K. Goebel,et al.  An agile accelerated aging, characterization and scenario simulation system for gate controlled power transistors , 2008, 2008 IEEE AUTOTESTCON.

[27]  J.D. van Wyk,et al.  Void induced thermal impedance in power semiconductor modules: some transient temperature effects , 2001, Conference Record of the 2001 IEEE Industry Applications Conference. 36th IAS Annual Meeting (Cat. No.01CH37248).