基于蒙特卡罗仿真和电压安全约束的无功优化算法  

VOLTAGE SECURITY CONSTRAINED REACTIVE POWER OPTIMIZATION BASED ON MONTE-CARLO SIMULATION

作　　者：张瑞华[1] 宋云亭[2] 

机构地区：[1]中国科学院电工研究所,北京市100080 [2]清华大学电机系,北京市100084

出　　处：《电力系统自动化》2002年第7期23-27,共5页Automation of Electric Power Systems

摘　　要：传统的电压无功优化采用确定性方法 ,并且主要考虑经济性 ,而在规划阶段需要对运行方式的不确定性进行更深入的研究。文中提出了基于蒙特卡罗仿真和电压安全约束的无功优化模型 ,以尽量提高节点的电压水平作为优化的目标。算法采用非序贯蒙特卡罗仿真实现 ,考虑了系统各种可能的运行状态及其出现的概率。该模型的优化结果对提高节点电压水平和整个系统的电压安全性效果显著 ,使系统在电压安全的基础上达到经济优化。以 IEEE可靠性标准测试系统为例进行了分析计算。算例表明 :该模型和算法可行 。Conventional determ inistic m ethod of reactive power optimization is used in power system,which only takes economy into account.However,more in- depth studies considering the uncertainty of operation mode will be gradually required in design phase.A new algorithm of voltage security constrained reactive power optimization based on Monte- Carlo simulation is proposed to im prove the voltage level of the power system .It was achieved through non- sequential Monte- Carlo simulation with the consideration of all kinds of operation modes and its probability.The optimization results can significantly im prove the node voltage level and system voltage security,as well as the system econom y on the basis of security.The validity of the developed algorithm is shown by the num erical results of a sample system.

关 键 词：蒙特卡罗仿真 无功优化 电压安全性 无功优化算法 

分 类 号：TM744[电气工程—电力系统及自动化] TM743