考虑可靠性及灵活性的风光储虚拟电厂分层容量配置  

Wind power storage virtual power plant considering reliability and flexibility tiered capacity configuration

作　　者：白雪岩 樊艳芳[1] 刘雨佳 宋雨露 BAI Xueyan;FAN Yanfang;LIU Yujia;SONG Yulu(School of Electrical Engineering,Xinjiang University,Urumqi 830017,China)

机构地区：[1]新疆大学电气工程学院,新疆乌鲁木齐830017

出　　处：《电力系统保护与控制》2022年第8期11-24,共14页Power System Protection and Control

基　　金：国家自然科学基金项目资助(51767023)。

摘　　要：可再生能源出力的随机波动性和不确定性使得系统可靠性在急剧下降的同时,系统灵活性需求剧增,这会导致可再生能源消纳能力大幅下降,资源浪费现象严重。针对上述问题,提出一种兼顾可靠性、灵活性和经济性的风光储虚拟电厂分层容量配置策略。其中,上层模型从利用分时电价引导用户响应可再生能源出力变化的角度,制定可削减、可转移负荷的调度方案。中层模型从可靠性最佳的角度,制定储能电池容量配置方案。下层模型在灵活性指标的约束下,从综合运行成本最优的角度,进一步完善中层模型制定的储能电池容量配置方案。最后,以新疆某地区负荷数据为例,进行了仿真验证。结果表明所提方法具有明显的经济效益,为碳达峰、碳中和提供新思路。The random fluctuation and uncertainty of renewable energy cause system reliability to decline sharply and the need for system flexibility to increase sharply.This can lead to significant decrease of the renewable energy consumption and serious waste of resources.To solve the above problems,this paper proposes a hierarchical capacity allocation strategy of virtual power plant(VPP)considering reliability,flexibility and economy.An‘upper’model formulates a load reduction and transfer scheduling scheme from the perspective of guiding users to respond to the change of renewable energy output by using TOU price.A‘middle-level’model formulates the capacity configuration scheme of an energy storage battery from the perspective of optimal reliability.Under the constraint of a flexibility index,the‘lower’model further improves the energy storage battery capacity configuration scheme formulated by the middle model from the perspective of optimal and comprehensive operational cost.Finally,taking the load data of a region in Xinjiang as an example,a simulation is carried out.The results show that the proposed method has obvious economic benefits and provides a new idea for carbon peaking and carbon neutralization.

关 键 词：可再生能源 虚拟电厂 分时电价 可靠性 灵活性 容量配置 储能电池 

分 类 号：TM73[电气工程—电力系统及自动化]