Energy Storage Science and Technology ›› 2020, Vol. 9 ›› Issue (6): 1872-1877.doi: 10.19799/j.cnki.2095-4239.2020.0001

• Energy Storage System and Engineering • Previous Articles     Next Articles

Energy reduction technology of container energy storage system

Zhiwei WANG(), Zifeng ZHANG, Shaowen YIN, Jiapin SUN, Xueqin YIN, Hu CAO   

  1. Electric Power Research Institute of BYD Auto Industry Co. Ltd. , Shenzhen 518118, Guangdong, China
  • Received:2020-01-03 Revised:2020-05-07 Online:2020-11-05 Published:2020-10-28

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 Some SI-based IGBT modules have been replaced by SIC IGBT modules.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: