TY - GEN
T1 - A grid-tied reconfigurable battery storage system
AU - Chen, Fa
AU - Wang, Hongmei
AU - Qiao, Wei
AU - Qu, Liyan
N1 - Funding Information:
This work was supported in part by the U.S. National Science Foundation under Grant IIP-1414393.
Publisher Copyright:
© 2018 IEEE.
PY - 2018/4/18
Y1 - 2018/4/18
N2 - This paper presents a grid-tied reconfigurable battery storage system, which consists of a single-phase two-stage bidirectional PWM converter and a reconfigurable battery pack (RBP). The two-stage PWM converter provides an interface between the AC power grid and the RBP and operates in two different modes: (1) grid to battery (G2B) mode, in which the RBP is charged from the AC power grid; and (2) battery to grid (B2G) mode, in which the RBP delivers the stored energy to the grid. In the RBP, fault tolerance and state of charge (SOC) equalization among battery cells can be realized by dynamically configuring the connections of battery cells, no additional SOC equalization circuit is required. A laboratory prototype of the proposed battery system was designed and fabricated. Experimental results on the prototype are provided to validate the features of the proposed battery system.
AB - This paper presents a grid-tied reconfigurable battery storage system, which consists of a single-phase two-stage bidirectional PWM converter and a reconfigurable battery pack (RBP). The two-stage PWM converter provides an interface between the AC power grid and the RBP and operates in two different modes: (1) grid to battery (G2B) mode, in which the RBP is charged from the AC power grid; and (2) battery to grid (B2G) mode, in which the RBP delivers the stored energy to the grid. In the RBP, fault tolerance and state of charge (SOC) equalization among battery cells can be realized by dynamically configuring the connections of battery cells, no additional SOC equalization circuit is required. A laboratory prototype of the proposed battery system was designed and fabricated. Experimental results on the prototype are provided to validate the features of the proposed battery system.
KW - Fault tolerance
KW - Grid-tied converter
KW - Reconfigurable battery system
KW - State of charge (SOC) equalization
UR - http://www.scopus.com/inward/record.url?scp=85046939981&partnerID=8YFLogxK
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U2 - 10.1109/APEC.2018.8341080
DO - 10.1109/APEC.2018.8341080
M3 - Conference contribution
AN - SCOPUS:85046939981
T3 - Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC
SP - 645
EP - 652
BT - APEC 2018 - 33rd Annual IEEE Applied Power Electronics Conference and Exposition
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 33rd Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2018
Y2 - 4 March 2018 through 8 March 2018
ER -