Energy reduction technology of container energy storage system

doi:10.19799/j.cnki.2095-4239.2020.0001

Abstract

Abstract:

A lithium battery container energy storage system consumes electrical energy during energy storage; hence, reducing the energy consumption of the container energy storage system can effectively improve the power efficiency. The energy consumption of the container energy storage system is mainly divided into air conditioning system energy consumption, PCS energy consumption, BMS energy consumption, and other energy consumption, of which the total energy consumptions of the air conditioning system and the PCS account for 92%. This study analyzes the energy consumption reduction plan of the air conditioning system and the PCS equipment. Through testing and theoretical calculations, we find that the actual energy consumption of the air conditioning system is reduced by approximately 41.8%, while that of the container system is reduced by approximately 33.0%. Some SI-based IGBT modules have been replaced by SIC IGBT modules. The theoretical calculation can reduce the energy consumptions of the PCS equipment and the container systems by 32.6% and approximately 7.1%, respectively. The abovementioned solution reduces the total energy consumption of the container energy storage system by approximately 40.1%.

Key words: energy storage system, energy saving, lithium battery

CLC Number:

TK 02

Zhiwei WANG, Zifeng ZHANG, Shaowen YIN, Jiapin SUN, Xueqin YIN, Hu CAO. Energy reduction technology of container energy storage system[J]. Energy Storage Science and Technology, 2020, 9(6): 1872-1877.

Figures/Tables 14

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参数	数据
总容量	20 MVA/20 MW·h
集装箱数量	16台
单集装箱容量	1.25 MVA/1.25 MW·h
充放电倍率	1 C
运行模式	FFR、Arbitrage
冷却方式	空调冷却

项目	百分比/%
提高COP	0.8
减少漏热量	3.4
空调内风机运行策略优化	28.8
总节能量	33.0

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