论文部分内容阅读
配电网合环操作是实现配电自动化、进一步提高供电可靠性所需考虑的重要课题。当进行合环操作时,调度人员为控制合环电流不越限需要预先进行一定的调整控制。针对合环操作中合环电流调控问题,首先建立了合环电流综合调控数学模型,推导了调整电容器补偿量、网络重构两种调控手段对合环电流的灵敏度表达式,然后根据灵敏度筛选初始调控元件集,并通过遗传算法解算,最后通过交替灵敏度计算法确定调控元件的动作顺序,从而确定调控策略。以一个实际地区电网的合环电流调控为例进行计算,结果验证了调控策略的有效性与现场可操作性,该策略可为配电网调度运行提供有力的技术支持。
Distribution network ring operation is to achieve distribution automation, to further improve the reliability of power supply to be considered an important issue. When the ring operation, the dispatcher to control the loop current does not exceed the limit need to be adjusted in advance to control. Aiming at the problem of the control of the combined loop current in the cooperative operation, a mathematical model of integrated control of the combined current of the circulating current was established. The sensitivity expression of adjusting the compensation amount of the capacitor and the network reconfiguration to the combined current was derived. Control components set, and through the genetic algorithm solution, and finally by alternating sensitivity calculation method to determine the sequence of regulatory elements to determine the control strategy. The calculation of the combined loop current in an actual local power grid is taken as an example. The results verify the effectiveness of the control strategy and the operability in the field. This strategy can provide strong technical support for the dispatching operation of distribution network.