摘要
离散控制设备动作次数约束造成动态无功优化问题的时空强耦合性,提出了配电网动态无功优化空间-时间解耦的一种新方法。根据全天各时段静态潮流计算得到的网损值大小,确定控制设备的预动作时间表,分配各时段的动作权限,从而找出第一个具有最大动作权限的时段。然后进行时间表的逐步动态调整,确定下一动作时段,直到满足动作控制设备的动作约束条件为止。该方法数学模型清晰简单,便于实现,且时刻保证了以网损值最小为依据分配动作时间。优化结果表明能够在完全满足动态次数约束的前提下,整体优化系统的无功,达到有效降低系统在一天内的有功损耗的目的。
The space-time coupling of dynamic reactive power optimization issue is created due to the action constraints of the discrete control equipments.This paper proposes a new method to solve the space-time decoupling of the distribution network dynamic reactive power optimization.The method determines the pre-action time table of the control equipments,distributes the right of action time,and finds the first biggest right action time,according to network power loss calculated by the static flow in different period of a day.Then the time table is gradually adjusted,and the next action time is determined,until the control equipments meet the action constraints.The mathematical model of the method is clear and simple,easy to achieve,and has guaranteed to the basement which is the minimum power loss for distributing operation times.The optimization results show that the network can be optimized on the premise of satisfying the action constraints of the control equipments and achieve the goal that effectively reduces the network power loss of a day.
出处
《电力系统保护与控制》
EI
CSCD
北大核心
2010年第21期39-43,共5页
Power System Protection and Control
关键词
动态无功优化
静态无功优化
电容器组
负荷曲线
dynamic reactive power optimization
static reactive power optimization
capacitor group
load curve
