电力系统无功优化模型的研究综述

Summary on Reactive Power Optimization Models in Electric System

总结了考虑系统网损最小、无功补偿设备容量最小、电压偏差最小、静态电压稳定裕度最大以及多目标加权等几种常用的经典电力系统无功优化数学模型,结合近年来关于智能电网关键技术的研究成果,分别对交直流混合输电系统、计及无功电价的电力市场、考虑负荷的变化影响及包含风电、光伏发电的分布式电源介入等智能电网背景下的无功优化模型进行综述,指出了各相关领域无功优化模型研究中存在的问题,并给出了解决方案.并就上述各研究领域中无功优化的代表性模型进行具体阐述,其中包括各种情况下无功优化的关键因素、目标函数及约束条件,并对其模型进行了评价.

This paper gives a summary on several classical mathematical models of reactive power optimization,such as the model of minimum system network losses,the model of minimum capacity of reactive power compensation equipment,the model of minimum voltage deviation,the model of maximum stability margin of static voltage,and the model of multi-objective weighted,and so on.According to the research results for relevant literature,and combining with the key technologies of smart grid in recent years,the reactive power optimization models are respectively summarized under the background of smart grid on AC / DC hybrid transmission system,power market by taking into account reactive power price,considering the influence of load variation,the involvement of distributed-generation sources including wind power and photovoltaic generation.Some problems in the researches of reactive power optimization models are pointed out,and the solutions are provided.The representative models of reactive power optimization in the above research field are elaborated,meanwhile the key factors of reactive power optimization,the objective functions and constraint conditions are also summarized,at last,their models are evaluated.