Control of Active Power Exchange With Auxiliary Power Loop in a Single-Phase Cascaded Multilevel Converter-Based Energy Storage System

Cascaded multilevel converter (CMC)-based energy storage system, which consists of cascaded H-bridge converters and energy storage components, is a promising option to compensate fluctuating electric power of renewable energy. This paper proposes a novel single-phase CMC-based battery storage system, which includes an LC branch. The cascaded converter cells and the LC branch form an auxiliary power loop, which could realize active power exchange between different cells with the proposed dual-frequency phase-shifted carrier pulse width modulation (DF-PSC PWM). The principle and effectiveness of DF-PSC PWM and the power transfer mechanism are analyzed. Meanwhile, the design of the tuned filter, output filter, and the state of charge balancing control system is introduced. The operation principle of the power exchange in the proposed energy storage system has been successfully verified by simulation and experimental results.

[1]  A. von Jouanne,et al.  Design considerations for an inverter output filter to mitigate the effects of long motor leads in ASD applications , 1997 .

[2]  Wu Chen,et al.  Decentralized Voltage-Sharing Control Strategy for Fully Modular Input-Series–Output-Series System With Improved Voltage Regulation , 2015, IEEE Transactions on Industrial Electronics.

[3]  Shaojun Xie,et al.  Dynamic Voltage Equalization for Series-Connected Ultracapacitors in EV/HEV Applications , 2009, IEEE Transactions on Vehicular Technology.

[4]  P. W. Hammond,et al.  A new approach to enhance power quality for medium voltage AC drives , 1997 .

[5]  Tsorng-Juu Liang,et al.  A Novel High-Efficiency Compact-Size Low-Cost Balancing Method for Series-Connected Battery Applications , 2013, IEEE Transactions on Power Electronics.

[6]  Fang Zheng Peng,et al.  Multilevel inverters: a survey of topologies, controls, and applications , 2002, IEEE Trans. Ind. Electron..

[7]  N.W. Miller,et al.  Design and commissioning of a 5 MVA, 2.5 MWh battery energy storage system , 1996, Proceedings of 1996 Transmission and Distribution Conference and Exposition.

[8]  D. Soto,et al.  Decoupled control of capacitor voltages in a PWM cascade StatCom , 2008, 2008 IEEE Power Electronics Specialists Conference.

[9]  Axel Mertens,et al.  Comparison of Cascaded H-Bridge and Modular Multilevel Converters for BESS application , 2011, 2011 IEEE Energy Conversion Congress and Exposition.

[10]  R.W. De Doncker,et al.  Analysis and evaluation of charge balancing circuits on performance, reliability and lifetime of supercapacitor systems , 2003, 38th IAS Annual Meeting on Conference Record of the Industry Applications Conference, 2003..

[11]  Luis Marroyo,et al.  Individual Voltage Balancing Strategy for PWM Cascaded H-Bridge Converter-Based STATCOM , 2008, IEEE Transactions on Industrial Electronics.

[12]  H. Akagi,et al.  State-of-Charge (SOC)-Balancing Control of a Battery Energy Storage System Based on a Cascade PWM Converter , 2009, IEEE Transactions on Power Electronics.

[13]  K. W. E. Cheng,et al.  Zero-Current Switching Switched-Capacitor Zero-Voltage-Gap Automatic Equalization System for Series Battery String , 2012, IEEE Transactions on Power Electronics.

[14]  H. Akagi,et al.  Control and Performance of a Transformerless Cascade PWM STATCOM With Star Configuration , 2007, IEEE Transactions on Industry Applications.

[15]  A. Rufer,et al.  Analysis and Control of Modular Multilevel Converters With Integrated Battery Energy Storage , 2015, IEEE Transactions on Power Electronics.

[16]  Richard H. Osman,et al.  A medium-voltage drive utilizing series-cell multilevel topology for outstanding power quality , 1999, Conference Record of the 1999 IEEE Industry Applications Conference. Thirty-Forth IAS Annual Meeting (Cat. No.99CH36370).

[17]  A. Rufer,et al.  Design and Control of a Modular Multilevel DC/DC Converter for Regenerative Applications , 2013, IEEE Transactions on Power Electronics.

[18]  A. M. Imtiaz,et al.  “Time Shared Flyback Converter” Based Regenerative Cell Balancing Technique for Series Connected Li-Ion Battery Strings , 2013, IEEE Transactions on Power Electronics.

[19]  Wenhua Liu,et al.  DC voltage balancing technique using multi-pulse optimal PWM for cascade H-bridge inverters based STATCOM , 2004, 2004 IEEE 35th Annual Power Electronics Specialists Conference (IEEE Cat. No.04CH37551).

[20]  Hee-Jun Kim,et al.  A study on the dynamic SOC compensation of an ultracapacitor module for the hybrid energy storage system , 2009, INTELEC 2009 - 31st International Telecommunications Energy Conference.

[21]  J. A. Ferreira,et al.  The Multilevel Modular DC Converter , 2013, IEEE Transactions on Power Electronics.

[22]  H. Akagi,et al.  Active-Power Control of Individual Converter Cells for a Battery Energy Storage System Based on a Multilevel Cascade PWM Converter , 2012, IEEE Transactions on Power Electronics.

[23]  Yu-Chih Hsiao,et al.  A Single-Phase Multilevel Inverter With Battery Balancing , 2013, IEEE Transactions on Industrial Electronics.

[24]  Hirofumi Akagi,et al.  Fault-Tolerant Operation of a Battery-Energy-Storage System Based on a Multilevel Cascade PWM Converter With Star Configuration , 2010, IEEE Transactions on Power Electronics.

[25]  Alfred Rufer,et al.  Balancing control actions for cascaded H-bridge converters with integrated battery energy storage , 2013, 2013 15th European Conference on Power Electronics and Applications (EPE).

[26]  Leon M. Tolbert,et al.  Charge balance control schemes for cascade multilevel converter in hybrid electric vehicles , 2002, IEEE Trans. Ind. Electron..

[27]  Tao Xu,et al.  State-of-charge balancing control strategy of battery energy storage system based on modular multilevel converter , 2014, 2014 IEEE Energy Conversion Congress and Exposition (ECCE).

[28]  Kui Wang,et al.  A Hybrid Cascaded Multilevel Converter for Battery Energy Management Applied in Electric Vehicles , 2014, IEEE Transactions on Power Electronics.

[29]  Keiju Matsui,et al.  A novel voltage equalizer for supercapacitors in multiple-connection , 2009, 2009 International Conference on Power Electronics and Drive Systems (PEDS).