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风储联合发电系统中锂电池寿命评估 被引量:10

Lifetime evaluation of battery energy storage system in wind-ES hybrid power system
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摘要 利用电池储能构建大规模风储联合并网发电系统,改善风电的波动性,成为目前研究的热点。然而在此运行方式下,电池处于频繁的充放电运行状态,为了优化电池的控制并提高其使用寿命,如何对其寿命进行评估十分重要。本文以锂电池为研究对象,分析其实验条件下的寿命特性,考虑不规则充放电循环深度和充放电次数的影响,构建了风储联合运行方式下锂电池的寿命评估方法,并设计了电池储能平抑风电功率波动控制策略和评价指标。基于实测风电数据,对此控制策略下风储联合发电系统的运行性能和锂电池的寿命进行评估。 Using battery energy storage to build a large-scale wind-energy storage( Wind-ES) hybrid power system has become the focus of current research to mitigate the fluctuation of wind power. However,battery system is running in complex charge-discharge state when used in Wind-ES hybrid power system scenario. In order to optimize battery operation mode and elongate its lifetime,to evaluate its lifetime is important. In this paper,lithium battery energy storage is used as the study object,its lifetime characteristics under experimental conditions are analyzed.Considering the impact of the charge-discharge depth and number of irregular charge-discharge cycles,a lifetime evaluation method is developed under Wind-ES conditions. Based on the wind power data,the lifetime evaluation method is used to analyze battery characteristics under the designed operation control strategy for Wind-ES. The result provides theoretical reference for configuration of the battery energy storage in engineering application.
出处 《电工电能新技术》 CSCD 北大核心 2015年第10期34-38,共5页 Advanced Technology of Electrical Engineering and Energy
基金 国家重点基础研究发展计划(973计划)项目(2013CB228201) 国家电网公司科技项目(合同号:SGLNSY00FZJS1500191) 吉林市科技发展计划项目(201464038)
关键词 风储联合发电系统 电池寿命 充放电循环深度 控制策略 wind-ES hybrid power system battery lifetime charge-discharge cycle depth control strategy
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