TY - GEN
T1 - Power Utility Tests for Multi-MW High Energy Batteries
AU - Akeyo, Oluwaseun
AU - Gong, Huangjie
AU - Rallabandi, Vandana
AU - Jewell, Nicholas
AU - Ionel, Dan M.
N1 - Publisher Copyright:
© 2018 IEEE.
PY - 2018/12/6
Y1 - 2018/12/6
N2 - This paper reviews the procedures, layouts and metrics described in the new test manual issued by the Electric Power Research Institute (EPRI), in order to determine the performance and functionality of a utility scale battery energy storage system (BESS). In this approach, the large battery unit is connected to the dc-link of a bidirectional power conversion system (PCS), which may be interfaced with either the utility grid or a load bank for the purpose of estimating the BESS operation and performance characteristics, some of which includes; available charge/discharge energy at rated power, continuous charge/discharge duration, battery ramp rate, and ac round trip efficiency (RTE). The bidirectional converter is operated with different charge and discharge cycles relevant to each specification and the battery state of charge along with electrical measurements at the ac and dc side are monitored and recorded. Also, an electrical equivalent circuit for a utility scale battery unit was developed based on the 1MW/2MWh operational BESS at the LG E and KU E.W. Brown facility. This model was formulated using an improved method for estimating the battery cell parameters.
AB - This paper reviews the procedures, layouts and metrics described in the new test manual issued by the Electric Power Research Institute (EPRI), in order to determine the performance and functionality of a utility scale battery energy storage system (BESS). In this approach, the large battery unit is connected to the dc-link of a bidirectional power conversion system (PCS), which may be interfaced with either the utility grid or a load bank for the purpose of estimating the BESS operation and performance characteristics, some of which includes; available charge/discharge energy at rated power, continuous charge/discharge duration, battery ramp rate, and ac round trip efficiency (RTE). The bidirectional converter is operated with different charge and discharge cycles relevant to each specification and the battery state of charge along with electrical measurements at the ac and dc side are monitored and recorded. Also, an electrical equivalent circuit for a utility scale battery unit was developed based on the 1MW/2MWh operational BESS at the LG E and KU E.W. Brown facility. This model was formulated using an improved method for estimating the battery cell parameters.
KW - Battery
KW - Battery modeling
KW - BESS
KW - Energy storage
KW - Grid connected converter
KW - Li-ion battery
KW - Performance testing.
UR - http://www.scopus.com/inward/record.url?scp=85060612875&partnerID=8YFLogxK
U2 - 10.1109/ICRERA.2018.8566920
DO - 10.1109/ICRERA.2018.8566920
M3 - Conference contribution
AN - SCOPUS:85060612875
T3 - 7th International IEEE Conference on Renewable Energy Research and Applications, ICRERA 2018
SP - 1396
EP - 1399
BT - 7th International IEEE Conference on Renewable Energy Research and Applications, ICRERA 2018
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 7th International IEEE Conference on Renewable Energy Research and Applications, ICRERA 2018
Y2 - 14 October 2018 through 17 October 2018
ER -
