预制舱式磷酸铁锂电池储能电站能耗计算研究

Research on Energy Consumption Calculation of Prefabricated Cabin Type Lithium Iron Phosphate Battery Energy Storage Power Station

[目的]基于站内能量损耗来源和设备属性详细分类,提出了预制舱式磷酸铁锂电池储能电站能耗计算方法。[方法]从储能电站的角度论述了预制舱式磷酸铁锂电池储能电站能耗计算中需考虑的主要因素,进而将储能电站的能耗分为2个部分,即储能系统自身的损耗和辅助设备运行的损耗,并分别给出了每部分能耗的计算方法及效率值的选取方法。[结果]通过实际算例,分析了配置规模为2 MW/2 MWh的储能电池预制舱在典型运行方式下的全天运行能耗,并与现场试验结果进行了对比,从储能电池产热和空调传导热能的角度分析了现场试验结果和理论分析的差别,对储能电站的能耗统计提出了建议。[结论]研究提出的能耗计算方法较全面地论述了影响预制舱式磷酸铁锂电池储能电站能耗指标的主要因素,依据设备属性详细分类给出了主要设备的能耗计算方法,具有较好的工程参考价值。

[Introduction] The paper proposes an energy consumption calculation method for prefabricated cabin type lithium iron phosphate battery energy storage power station based on the energy loss sources and the detailed classification of equipment attributes in the station. [Method] From the perspective of an energy storage power station, this paper discussed the main factors to be considered in the energy consumption calculation of prefabricated cabin type lithium iron phosphate battery energy storage power station, and then divided the energy consumption of the energy storage power station into two parts, namely, the energy consumption of the energy storage system and the energy consumption of the auxiliary equipment operation. Besides, it also provided the calculation method for the energy consumption of each part and the selection method of efficiency value respectively. [Result] Through a practical calculation example, the whole-day energy consumption of a 2 MW/2 MWh energy storage battery prefabrication cabin in a certain operation mode is analyzed and compared with the field test results. The difference between the field test results and the theoretical analysis results is analyzed from the perspective of the heat produced by the energy storage battery and the heat transmitted by the air conditioner, and suggestions are put forward for the energy consumption statistics of the energy storage power station. [Conclusion] The energy consumption calculation method proposed in the study comprehensively discusses the main factors affecting the energy consumption index of the prefabricated cabin type lithium iron phosphate battery energy storage power station and gives the energy consumption calculation method for the main equipment according to the detailed classification of equipment attributes, which has a good engineering reference value.