论文信息 - High efficiency power converters for battery energy storage systems

High efficiency power converters for battery energy storage systems

Renewable energy sources such as wind-turbine and photovoltaic power generators may make the power grid unstable due to their output fluctuations. Battery energy storage systems (BESSs) are being considered as a countermeasure for this issue. “BESSs” require bidirectional ac-to-dc and dc-to-ac converters, so improvement of the converter efficiency is desired to improve the efficiency of BESSs. This paper presents the performance of 100-kVA and 500-kVA converters for BESSs in practical use, and introduces the development and the verification test results of a real-scale (500 kW) single-star bridge cell (SSBC) based modular multilevel cascade converter (MMCC) which is expected to be a new converter topology for BESSs.

Noriko Kawakami | Yukihia Iijima | Haiqing Li | Satoru Ota

[1] 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.

[2] Noriko Kawakami,et al. Development of power conditioning system (PCS) for battery energy storage systems , 2013, 2013 IEEE ECCE Asia Downunder.

[3] Takeshi Matsuda,et al. Development and field experiences of NAS battery inverter for power stabilization of a 51 MW wind farm , 2010, The 2010 International Power Electronics Conference - ECCE ASIA -.

[4] Hirofumi Akagi. Classification, Terminology, and Application of the Modular Multilevel Cascade Converter (MMCC) , 2011 .

[5] 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.