Lithium-ion battery capacity configuration strategy for photovoltaic microgrid

DMPPT control of photovoltaic microgrid based on improved sparrow search algorithm

Changsheng Liu and Xingxing Zhang

International Journal of Low-Carbon Technologies, 2022, vol. 17, 850-855

Abstract: For photovoltaic (PV) microgrid, the instability of PV power generation will bring a lot of trouble to the microgrid, it is a good solution to configure lithium-ion battery and the capacity configuration of lithium-ion battery is the key. This paper proposes a simple and feasible capacity configuration strategy for lithium-ion batteries, different from other studies; it optimizes the capacity configuration of batteries by abandoning extreme situations and further optimizes the capacity configuration according to the actual situation of microgrid load and PV. A microgrid consisting of an ~750 m2 factory with 50 kw PV is selected for analysis, the factory works from Monday to Saturday and rests on Sunday and the required battery capacity can be greatly optimized by adjusting the state of charge of the battery. After calculation, the strategy proposed in this paper requires a battery with only 375 kwh compared with the traditional strategy requiring 650 kwh, which can save ~42.3% of the cost and has good economic value.

Keywords: capacity configuration; lithium-ion battery; photovoltaic; microgrid (search for similar items in EconPapers)
Date: 2022
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Persistent link: https://EconPapers.repec.org/RePEc:oup:ijlctc:v:17:y:2022:i::p:850-855.

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