TY - GEN
T1 - A bidirectional DC-DC converters for photovoltaic generation energy storage system
AU - Wei, Yili
AU - Zhang, Chao
AU - Dou, Gang
AU - Song, Yiqi
AU - Lin, Mengchang
N1 - Publisher Copyright:
© 2017 IEEE.
PY - 2017/12/29
Y1 - 2017/12/29
N2 - Photovoltaic energy storage system meets the ever-growing demand for electricity, while ensuring the stability of power supply. Research of renewable energy-based microgrid system has become a hot topic, especially the study of Maximum Power Point Tracking (MPPT) and energy storage unit control strategies. This paper proposes an MPPT technique that combines gradient step size with conductance increment method, in order to achieve fast maximum power tracking and to avoid shock and error at the Maximum Power Point (MPP). On the basis of small signal model, bidirectional Buck/Boost converter and full bridge converter are designed to form the inner current loop and the outer voltage loop of battery charging/discharging controller under different control strategies, so as to realize the bidirectional flow of energy. A simulation model of energy storage unit is built in MATLAB/Simulink environment, and the simulation results verify the effectiveness of the control strategy.
AB - Photovoltaic energy storage system meets the ever-growing demand for electricity, while ensuring the stability of power supply. Research of renewable energy-based microgrid system has become a hot topic, especially the study of Maximum Power Point Tracking (MPPT) and energy storage unit control strategies. This paper proposes an MPPT technique that combines gradient step size with conductance increment method, in order to achieve fast maximum power tracking and to avoid shock and error at the Maximum Power Point (MPP). On the basis of small signal model, bidirectional Buck/Boost converter and full bridge converter are designed to form the inner current loop and the outer voltage loop of battery charging/discharging controller under different control strategies, so as to realize the bidirectional flow of energy. A simulation model of energy storage unit is built in MATLAB/Simulink environment, and the simulation results verify the effectiveness of the control strategy.
KW - Bidirectional DC-DC converter
KW - Double closed loop control
KW - Maximum Power Point Tracking
KW - Photovoltaic energy storage system
UR - http://www.scopus.com/inward/record.url?scp=85050334638&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85050334638&partnerID=8YFLogxK
U2 - 10.1109/CAC.2017.8243411
DO - 10.1109/CAC.2017.8243411
M3 - Conference contribution
AN - SCOPUS:85050334638
T3 - Proceedings - 2017 Chinese Automation Congress, CAC 2017
SP - 3632
EP - 3637
BT - Proceedings - 2017 Chinese Automation Congress, CAC 2017
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2017 Chinese Automation Congress, CAC 2017
Y2 - 20 October 2017 through 22 October 2017
ER -
