TY - JOUR
T1 - Multi-objective optimal operation planning for battery energy storage in a grid-connected micro-grid
AU - Ryu, Anto
AU - Ishii, Hideo
AU - Hayashi, Yasuhiro
N1 - Funding Information:
The authors would like to acknowledge the financial support from Graduate Program for Power Energy Professionals, Waseda University from MEXT WISE Program, Japan. They also express their thanks to Mr. H. Onojima of Obayashi Corporation for supporting the research.
Publisher Copyright:
© 2020 Int. J. Elec. & Elecn. Eng. & Telcomm.
PY - 2020/5/1
Y1 - 2020/5/1
N2 - This paper investigates an evaluation of the expected business continuity for a grid-connected microgrid (GCMG) consisting of a photovoltaic (PV) system and a Battery Energy Storage System (BESS) during an interruption of the external power supply. For evaluation indices, duration of self-power supply for critical loads and success rate of uninterrupted self-power supply are adopted and investigated in relation to PV capacity and BESS initial charge. In addition, a novel method of multi-objective optimal operation planning for BESS in a GCMG is proposed in this paper. Operation cost and resilience, which exist in a trade-off relationship, are simultaneously considered within the micro-grid. Electricity purchasing cost from the grid is used as an index of operation cost, duration of power outage within the micro-grid while switched to an independent operation state is used as an index of resilience to formulate the multi-objective optimization problem to determine the BESS operation planning. For optimization method, Multi-Objective Particle Swarm Optimization (MOPSO) is adopted. To verify the effectiveness of the proposed method, the numerical simulation was conducted, and the results demonstrated that the Pareto solutions, obtained by the proposed method, proved useful to micro-grid operators to determine the BESS operation planning considering the best balance between operation cost and resilience, which meet their need.
AB - This paper investigates an evaluation of the expected business continuity for a grid-connected microgrid (GCMG) consisting of a photovoltaic (PV) system and a Battery Energy Storage System (BESS) during an interruption of the external power supply. For evaluation indices, duration of self-power supply for critical loads and success rate of uninterrupted self-power supply are adopted and investigated in relation to PV capacity and BESS initial charge. In addition, a novel method of multi-objective optimal operation planning for BESS in a GCMG is proposed in this paper. Operation cost and resilience, which exist in a trade-off relationship, are simultaneously considered within the micro-grid. Electricity purchasing cost from the grid is used as an index of operation cost, duration of power outage within the micro-grid while switched to an independent operation state is used as an index of resilience to formulate the multi-objective optimization problem to determine the BESS operation planning. For optimization method, Multi-Objective Particle Swarm Optimization (MOPSO) is adopted. To verify the effectiveness of the proposed method, the numerical simulation was conducted, and the results demonstrated that the Pareto solutions, obtained by the proposed method, proved useful to micro-grid operators to determine the BESS operation planning considering the best balance between operation cost and resilience, which meet their need.
KW - Battery energy storage
KW - Micro-grid
KW - Multi-objective particle swarm optimization (MOPSO)
KW - Optimal operation planning
KW - Resilience
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U2 - 10.18178/ijeetc.9.3.163-170
DO - 10.18178/ijeetc.9.3.163-170
M3 - Article
AN - SCOPUS:85097623171
SN - 2319-2518
VL - 9
SP - 163
EP - 170
JO - International Journal of Electrical and Electronic Engineering and Telecommunications
JF - International Journal of Electrical and Electronic Engineering and Telecommunications
IS - 3
ER -