考虑储能电池参与一次调频技术经济模型的容量配置方法  

Capacity Allocation of BESS in Primary Frequency Regulation Considering its Technical-Economic Model

作　　者：黄际元 李欣然[2] 常敏 黎淑娟[2] 刘卫健[2] 

机构地区：[1]国网湖南省电力公司长沙供电分公司,长沙410015 [2]湖南大学电气与信息工程学院,长沙410082 [3]中国电建集团中南勘测设计研究院有限公司,长沙410014

出　　处：《电工技术学报》2017年第21期43-52,共10页Transactions of China Electrotechnical Society

基　　金：国家自然科学基金项目(51477043);湖南省科技重大专项(2016GK1003)资助

摘　　要：规模间歇电源并网引起的电网频率问题,导致对引入储能辅助调频的研究越发迫切。提出一种考虑储能电池参与一次调频技术经济模型的容量配置方法。阐述了储能电池功率和容量设计的通用方法;通过分析储能电池在调频运行过程中的成本和效益,基于全寿命周期理论,运用净现值法结合仿真模型构建储能电池参与一次调频的技术经济模型;设计了一种储能电池参与一次调频的充放电策略,在此基础上,考虑受风电出力波动影响的电网综合负荷,从与之对应的电网频率信号波动特性出发,在确定的电网调频及储能电池运行要求约束下,得出调频效果最优、经济性最优以及两者综合最优目标下的储能电池容量配置方案。仿真结果表明了该方法的合理性及有效性。本研究有助于推动储能电池在辅助调频服务上的示范与工程化应用。Large-scale integration of intermittent power generation has caused grid frequency problems,bringing an urgent research need for introducing battery energy storage system( BESS) into the auxiliary frequency regulation field. A capacity allocation method of BESS in primary frequency regulation is proposed considering its technical-economic model. The universal way to allocate the power and capacity of BESS is introduced; through analyzing the cost and benefits of BESS in frequency regulation process, based on the life cycle cost( LCC)theory,using the net present value( NPV) method, and integrated with a BESS simulation model, the technical-economic model of BESS in primary frequency regulation is constructed; a charge-discharge strategy of BESS to participate in primary frequency regulation are designed, and with the charge-discharge strategy,considering the composite load affected by volatile wind power, starting from the corresponding fluctuation characteristics of grid frequency signals,and under the constraints of the operation requirements of grid frequency regulation and BESS,capacity allocation schemes of BESS are obtained with the optimal frequency regulationperformance,the optimal economic benefits and the comprehensive optimum of both,respectively. Results prove the rationality and effectiveness of this method. The study helps propel the demonstration and engineering application of BESS in the auxiliary frequency regulation field.

关 键 词：储能电池 一次调频 成本—效益 容量配置 

分 类 号：TM732[电气工程—电力系统及自动化]