Output Current Ripple Reduction Algorithms for Home Energy Storage Systems

Energies

Jin-Hyuk Park¹  Hae-Gwang Jeong¹ 

[1] Department of Electrical and Computer Engineering, Ajou University, San 5, Woncheon-dong, Yeongtong-gu, Suwon 443-749, Korea;

关键词: second-order harmonic;    energy storage system;    harmonic compensator;    single phase grid connected inverter;   

DOI  :  10.3390/en6105552

来源: mdpi

【 摘 要 】

This paper proposes an output current ripple reduction algorithm using a proportional-integral (PI) controller for an energy storage system (ESS). In single-phase systems, the DC/AC inverter has a second-order harmonic at twice the grid frequency of a DC-link voltage caused by pulsation of the DC-link voltage. The output current of a DC/DC converter has a ripple component because of the ripple of the DC-link voltage. The second-order harmonic adversely affects the battery lifetime. The proposed algorithm has an advantage of reducing the second-order harmonic of the output current in the variable frequency system. The proposed algorithm is verified from the PSIM simulation and experiment with the 3 kW ESS model.

【 授权许可】

CC BY   
© 2013 by the authors; licensee MDPI, Basel, Switzerland.