CAJ | 학술논문

基于考虑风电预测误差时间相关性的不确定性场景，将能量型储能同时应用于削峰填谷和计划跟踪两种模式，提出了风储联合系统多模式协调优化模型。同时，针对风储联合运行的大规模混合整数规划问题，提出储能调峰容量系数的概念，用于构造两层迭代优化算法，对模型进行快速求解，并可对储能在不同模式的容量分配进行量化评估。基于实际数据进行了计算机仿真验证，仿真结果表明，风储联合系统的最优运行模式受上网电价、惩罚价格以及风电随机特性等因素的影响；而所提出的模型可实现储能有限容量在不同模式间的合理分配和高效利用，为研究风储联合系统运行特性、与电网进行协调调度提供了重要的参考信息。
기우고필풍전예측오차시간상관성적불학정성장경，장능량형저능동시응용우삭봉전곡화계화근종량충모식，제출료풍저연합계통다모식협조우화모형。동시，침대풍저연합운행적대규모혼합정수규화문제，제출저능조봉용량계수적개념，용우구조량층질대우화산법，대모형진행쾌속구해，병가대저능재불동모식적용량분배진행양화평고。기우실제수거진행료계산궤방진험증，방진결과표명，풍저연합계통적최우운행모식수상망전개、징벌개격이급풍전수궤특성등인소적영향；이소제출적모형가실현저능유한용량재불동모식간적합리분배화고효이용，위연구풍저연합계통운행특성、여전망진행협조조도제공료중요적삼고신식。
Based on the uncertainty scenarios considering temporal dependence of wind power prediction errors,the energy storage system is applied in both energy shifting pattern and plan following pattern.A multi-pattern coordinated optimization model for the wind power and energy storage combined system is proposed.Meanwhile,in view of the large-scale mixed-integer programming problem in the combined operation of wind power and energy storage system,the shifting ratio of energy storage capacity is proposed to develop the bi-level iterative optimization algorithm for fast sloving the model.The shifting ratio of energy storage capacity is further applied to quantitatively evaluate the capacity allocation.The results of the simulation based on actual data show that the optimal operation pattern of the wind power and energy storage system is influenced by factors including the selling price,penalty price and stochastic characteristics of wind power.And the model proposed is able to realize rational allocation and highly efficient utilization of the limited energy storage among different scenarios,providing important information for research on wind power and energy storage combined system operation and coordinated dispatch with power grids.