基于IGDT-CVaR的风电-抽水蓄能联合调度研究  

Research on wind power and pumped hydro storage based on IGDT-CVaR

作　　者：迟昆 李媛 张军 张中丹 王涛 蔺丽华[3] 贺明康 吴雄[4] CHI Kun;LI Yuan;ZHANG Jun;ZHANG Zhong-dan;WANG Tao;LIN Li-hua;HE Ming-kang;WU Xiong(State Grid Gansu Economic Research Institute,Lanzhou 730050,China;State Grid Gansu Electric Power Company,Lanzhou 730050,China;College of Communication,Xi’an University of Science and Technology,Xi’an 710065,China;School of Electrical Engineering,Xi’an Jiaotong University,Xi’an 710049,China)

机构地区：[1]国网甘肃省电力公司经济技术研究院,甘肃兰州730050 [2]国网甘肃省电力公司,甘肃兰州730050 [3]西安科技大学通信学院,陕西西安710065 [4]西安交通大学电气工程学院,陕西西安710049

出　　处：《电工电能新技术》2022年第7期1-9,共9页Advanced Technology of Electrical Engineering and Energy

基　　金：国家自然科学基金项目(51807149)。

摘　　要：风电出力受风速影响,具有较强的随机性和波动性。随着电力市场改革的进行,竞价上网成为趋势,电价也将呈现出不确定性,电力系统调度需要充分考虑不确定性的影响。抽水蓄能电站具有削峰填谷、促进新能源消纳的作用。本文利用抽水蓄能电站调节风电出力,并采用信息间隙决策理论(IGDT)应对风电出力的不确定性,采用条件风险价值(CVaR)理论来度量电价波动对系统的影响,提出了基于IGDT-CVaR的风电-抽水蓄能联合调度模型,并根据决策者的风险偏好制定了风险规避策略和机会寻求策略。算例结果表明所提策略可以根据决策者的风险偏好制定相应的调度计划,验证了模型的有效性。Wind power output is affected by wind speed,and has strong variability and intermittence.With the reform of power market,bidding for grid access has become a trend,and the price of electricity will also be uncertain.The influence of uncertainty needs to be fully considered in power system dispatching.Pumped hydro storage plays a role in cutting peak,filling valley and promoting new energy consumption in power system.In this paper,the pumped hydro storage is used to regulate the wind power output.The uncertainty of wind power output is dealt with information gap decision theory(IGDT).The impact of electricity price fluctuation on system is measured by conditional value at risk(CVaR)theory.A wind power and pumped hydro storage dispatching model based on IGDT-CVaR is proposed.According to the risk preference of decision-makers,risk evasion and opportunity seeking strategy are formulated.Finally,the results of case study show that the strategies can specify the corresponding scheduling plan according to the risk preference of decision-makers and verify the effectiveness of the model.

关 键 词：抽水蓄能 不确定性 信息间隙决策理论 条件风险价值 

分 类 号：TM732[电气工程—电力系统及自动化]