电池储能电站(battery energy storage station,BESS)由于受到成本高和储能应用技术因素的限制,难以进行大规模商业应用。首先将BESS应用于辅助服务电力市场,在设定辅助服务的提供者、提供方式、交易规则的情况下,研究了BESS参与基于风...电池储能电站(battery energy storage station,BESS)由于受到成本高和储能应用技术因素的限制,难以进行大规模商业应用。首先将BESS应用于辅助服务电力市场,在设定辅助服务的提供者、提供方式、交易规则的情况下,研究了BESS参与基于风险消弭的风电辅助服务的经济性,建立了BESS参与风电辅助服务综合经济效益模型。然后针对模型求解,计算了储能电站的投资回报率、投资回收期等经济指标,评估了该储能电站的效益优劣。最后量化分析了各种影响因素的改变对BESS收益水平的影响。展开更多
Microgrid is a good option to integrate renewableenergy sources (RES) into power systems. Inorder to deal with the intermittent characteristics of therenewable energy based distributed generation (DG) units,a fuzzy-lo...Microgrid is a good option to integrate renewableenergy sources (RES) into power systems. Inorder to deal with the intermittent characteristics of therenewable energy based distributed generation (DG) units,a fuzzy-logic based coordinated control strategy of a batteryenergy storage system (BESS) and dispatchable DGunits is proposed for the microgrid management system(MMS). In the proposed coordinated control strategy, theBESS is used to minimize active power exchange at thepoint of common coupling of the microgrid for grid-connectedoperation, and is used for frequency control for islandoperation. The efficiency of the proposed controlstrategy was tested by case studies using DIgSILENT/PowerFactroy.展开更多
储能系统的投资过程主要包括初始购置、运维和置换三个阶段,不同的应用工况将对电池储能系统的寿命衰减速率产生差异化影响,进而影响其成本投入过程,也是储能系统经济评估中的必要考虑因素。面向储能系统的经济性动态评估,首先定义温度...储能系统的投资过程主要包括初始购置、运维和置换三个阶段,不同的应用工况将对电池储能系统的寿命衰减速率产生差异化影响,进而影响其成本投入过程,也是储能系统经济评估中的必要考虑因素。面向储能系统的经济性动态评估,首先定义温度、倍率、放电深度(Depth of Discharge,DOD)、充放电频次等作为储能工况特征量。基于工况特征量与电池寿命损耗之间的关联关系,建立了计及工况特征参量的储能系统出力模型和成本模型。基于全寿命周期成本模型(Life Cycle Cost,LCC)和遗传算法,分析了工况特征量在储能成本评估中考虑的必要性及其影响程度。最后,在平抑光伏波动和负荷侧削峰填谷两种工况下展开算例分析,验证了在储能规划过程中考虑工况特征量的必要性。该研究将为储能规划阶段的经济性评估提供理论依据与数据基础。展开更多
文摘电池储能电站(battery energy storage station,BESS)由于受到成本高和储能应用技术因素的限制,难以进行大规模商业应用。首先将BESS应用于辅助服务电力市场,在设定辅助服务的提供者、提供方式、交易规则的情况下,研究了BESS参与基于风险消弭的风电辅助服务的经济性,建立了BESS参与风电辅助服务综合经济效益模型。然后针对模型求解,计算了储能电站的投资回报率、投资回收期等经济指标,评估了该储能电站的效益优劣。最后量化分析了各种影响因素的改变对BESS收益水平的影响。
基金The authors from Technical University of Denmark are grateful to Sino-Danish Education and Research Centre(SDC)for the financial support to the PhD project of‘Coordinated Control of Wind Power Plants and Energy Storage Systems’.
文摘Microgrid is a good option to integrate renewableenergy sources (RES) into power systems. Inorder to deal with the intermittent characteristics of therenewable energy based distributed generation (DG) units,a fuzzy-logic based coordinated control strategy of a batteryenergy storage system (BESS) and dispatchable DGunits is proposed for the microgrid management system(MMS). In the proposed coordinated control strategy, theBESS is used to minimize active power exchange at thepoint of common coupling of the microgrid for grid-connectedoperation, and is used for frequency control for islandoperation. The efficiency of the proposed controlstrategy was tested by case studies using DIgSILENT/PowerFactroy.
文摘储能系统的投资过程主要包括初始购置、运维和置换三个阶段,不同的应用工况将对电池储能系统的寿命衰减速率产生差异化影响,进而影响其成本投入过程,也是储能系统经济评估中的必要考虑因素。面向储能系统的经济性动态评估,首先定义温度、倍率、放电深度(Depth of Discharge,DOD)、充放电频次等作为储能工况特征量。基于工况特征量与电池寿命损耗之间的关联关系,建立了计及工况特征参量的储能系统出力模型和成本模型。基于全寿命周期成本模型(Life Cycle Cost,LCC)和遗传算法,分析了工况特征量在储能成本评估中考虑的必要性及其影响程度。最后,在平抑光伏波动和负荷侧削峰填谷两种工况下展开算例分析,验证了在储能规划过程中考虑工况特征量的必要性。该研究将为储能规划阶段的经济性评估提供理论依据与数据基础。
