电力市场环境下基于电压安全的最优预测控制  

Optimal Preventive Control Based on Voltage Security in Electricity Market

作　　者：李佳宇[1] 鄢安河[1] 尚金成[1] 张明亮[1] 李大鹏[1] 王子琦[1] 

机构地区：[1]河南电力调度通信中心,郑州450052

出　　处：《电工技术学报》2006年第9期13-17,66,共6页Transactions of China Electrotechnical Society

摘　　要：提出了电力市场环境下基于电压安全的最优预测控制的模型及算法。在市场环境下,以系统预测控制付费最小为目标函数,求解为保证系统电压在一定安全区域内,系统需进行的最优预测控制。引入基于电压稳定指数L值的电压安全灵敏度和等效发电机无功补偿的概念,根据各补偿设备对系统电压安全贡献的大小及所需购买发电机无功出力的减少,对各节点的无功补偿给出了明确的价格信号。最后以WSCC9节点系统为算例,对各种无功补偿方式进行了比较,并对电力系统安全性和经济性之间的协调关系进行了分析。The paper proposes the model of optimal preventive control based on voltage security in electricity market. The objective function is the minimization of total payments of preventive control and must ensure each bus have enough voltage security margin. The sensitivity of voltage security based on voltage stability index and the concept of equivalent reactive power compensation of generator is also introduced in the paper, and calculates the price of each reactive power compensation method based on their contribution in voltage security and the decrease of reactive power from generators is calculated. Computer tests on WSCC 9 bus system show the feasibility and reasonableness of the model.

关 键 词：电力市场 电压安全域 电压安全灵敏度 等效发电机无功补偿 最优预测控制 

分 类 号：TM712[电气工程—电力系统及自动化] F123.9[经济管理—世界经济]