Bidirectional Single-Stage Grid-Connected Inverter for a Battery Energy Storage System

The objective of this paper is to propose a bidirectional single-stage grid-connected inverter (BSG-inverter) for the battery energy storage system. The proposed BSG-inverter is composed of multiple bidirectional buck–boost type dc–dc converters (BBCs) and a dc–ac unfolder. Advantages of the proposed BSG-inverter include: single-stage power conversion, low battery and dc-bus voltages, pulsating charging/discharging currents, and individual power control for each battery module. Therefore, the equalization, lifetime extension, and capacity flexibility of the battery energy storage system can be achieved. Based on the developed equations, the power flow of the battery system can be controlled without the need of input current sensor. Also, with the interleaved operation between BBCs, the current ripple of the output inductor can be reduced too. The computer simulations and hardware experimental results are shown to verify the performance of the proposed BSG-inverter.

[1]  Alfred Rufer,et al.  A Modular Multiport Power Electronic Transformer With Integrated Split Battery Energy Storage for Versatile Ultrafast EV Charging Stations , 2015, IEEE Transactions on Industrial Electronics.

[2]  E. Koutroulis,et al.  Design optimization of transformerless grid-connected PV inverters including reliability , 2012, 2012 Twenty-Seventh Annual IEEE Applied Power Electronics Conference and Exposition (APEC).

[3]  Nilanjan Mukherjee,et al.  Control of Second-Life Hybrid Battery Energy Storage System Based on Modular Boost-Multilevel Buck Converter , 2015, IEEE Transactions on Industrial Electronics.

[4]  Jih-Sheng Lai,et al.  Design of Parallel Inverters for Smooth Mode Transfer Microgrid Applications , 2009, IEEE Transactions on Power Electronics.

[5]  Jih-Sheng Lai,et al.  A high-efficiency grid-tie battery energy storage system , 2011, IEEE Transactions on Power Electronics.

[6]  Yu Tang,et al.  Active Buck–Boost Inverter , 2014, IEEE Transactions on Industrial Electronics.

[7]  Kashem M. Muttaqi,et al.  Solar PV and Battery Storage Integration using a New Configuration of a Three-Level NPC Inverter With Advanced Control Strategy , 2014, IEEE Transactions on Energy Conversion.

[8]  V. Agarwal,et al.  A Single-Stage Single-Phase Transformer-Less Doubly Grounded Grid-Connected PV Interface , 2009, IEEE Transactions on Energy Conversion.

[9]  Yun Wei Li,et al.  Hybrid Voltage and Current Control Approach for DG-Grid Interfacing Converters With LCL filters , 2013, IEEE Transactions on Industrial Electronics.

[10]  Majid Pahlevaninezhad,et al.  Analysis and Implementation of a Single-Stage Flyback PV Microinverter With Soft Switching , 2014, IEEE Transactions on Industrial Electronics.

[11]  O. Trescases,et al.  A General Approach for Quantifying the Benefit of Distributed Power Electronics for Fine Grained MPPT in Photovoltaic Applications Using 3-D Modeling , 2012, IEEE Transactions on Power Electronics.

[12]  Haibing Hu,et al.  A Single-Stage Microinverter Without Using Eletrolytic Capacitors , 2013, IEEE Transactions on Power Electronics.

[13]  Liang-Rui Chen,et al.  Improvement of Li-ion Battery Discharging Performance by Pulse and Sinusoidal Current Strategies , 2013, IEEE Transactions on Industrial Electronics.

[14]  F. Blaabjerg,et al.  A review of single-phase grid-connected inverters for photovoltaic modules , 2005, IEEE Transactions on Industry Applications.

[15]  Liang Chen,et al.  Flyback inverter controlled by sensorless current MPPT for photovoltaic power system , 2005, IEEE Transactions on Industrial Electronics.

[16]  P. Kohl,et al.  The effects of pulse charging on cycling characteristics of commercial lithium-ion batteries , 2001 .

[17]  Yoochae Chung,et al.  Active Cell Balancing of Li-Ion Batteries Using $LC$ Series Resonant Circuit , 2015, IEEE Transactions on Industrial Electronics.

[18]  M. Liserre,et al.  Design and control of an LCL-filter based three-phase active rectifier , 2001, Conference Record of the 2001 IEEE Industry Applications Conference. 36th IAS Annual Meeting (Cat. No.01CH37248).

[19]  Yaow-Ming Chen,et al.  Multi-string single-stage grid-connected inverter for PV system , 2011, 2011 IEEE Energy Conversion Congress and Exposition.

[20]  Tsair-Rong Chen,et al.  Sinusoidal-Ripple-Current Charging Strategy and Optimal Charging Frequency Study for Li-Ion Batteries , 2013, IEEE Transactions on Industrial Electronics.

[21]  Jaber A. Abu-Qahouq,et al.  Energy Sharing Control Scheme for State-of-Charge Balancing of Distributed Battery Energy Storage System , 2015, IEEE Transactions on Industrial Electronics.

[22]  Changliang Xia,et al.  Topology Review and Derivation Methodology of Single-Phase Transformerless Photovoltaic Inverters for Leakage Current Suppression , 2015, IEEE Transactions on Industrial Electronics.

[23]  Jung-Min Kwon,et al.  Highly Efficient Microinverter With Soft-Switching Step-Up Converter and Single-Switch-Modulation Inverter , 2015, IEEE Transactions on Industrial Electronics.

[24]  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.

[25]  Hak-Man Kim,et al.  Cooperative Control Strategy of Energy Storage System and Microsources for Stabilizing the Microgrid during Islanded Operation , 2010, IEEE Transactions on Power Electronics.

[26]  Santanu Bandyopadhyay,et al.  One-Cycle-Controlled Single-Stage Single-Phase Voltage-Sensorless Grid-Connected PV System , 2013, IEEE Transactions on Industrial Electronics.

[27]  Feng Tian,et al.  An Adaptive Slope Compensation for the Single-Stage Inverter With Peak Current-Mode Control , 2011, IEEE Transactions on Power Electronics.

[28]  Moon-Young Kim,et al.  A Chain Structure of Switched Capacitor for Improved Cell Balancing Speed of Lithium-Ion Batteries , 2014, IEEE Transactions on Industrial Electronics.