电力系统无功补偿点及其补偿容量的确定

Confirmation of Reactive Power Compensation Node and Its Optimal Compensation Capacity

基于简单交流电路的电压电流特性,提出了无功裕度的概念。利用节点无功裕度的排序确定电力系统无功补偿点,并在此基础上用混合改进遗传方法进行无功优化规划。该方法使无功电源得到合理地配置,无功就地平衡,提高了电力系统的电压稳定性。IEEE30节点算例的仿真结果表明,该方法实现了无功规划的可靠性和经济性。

Based on the features of simple alternatingcurrent circuits, a concept of reactive power margin is proposed and the node where power system reactive power compensator is installed is determined by the ordering of reactive power margins of nodes. After the confirmation of compensating node, optimized reactive power planning is implemented by hybrid evolutionary programming method. Using the proposed method, reactive power Sources can be rationally configured, reactive power can be balanced locally, and the voltage stability of power network can be improved as well. Simulation results of IEEE 30-bus system show that the reliability and economy of reactive power planning can be realized by the proposed method.