Optimal reactive power dispatch considering costs of adjusting the control devices
Optimal reactive power dispatch considering costs of adjusting the control devices
复制标题
DOI：
10.1109/tpwrs.2005.851920
复制
发表时间：
2005-08
影响因子：
6.6
通讯作者：
Yongjun Zhang;Zhen Ren
中科院分区：
文献类型：
--
作者：
Yongjun Zhang;Zhen Ren
传统的电力系统无功优化调度(ORPD)模型是以收益最大化为原则，以全网有功损耗最小为目标的。然而，这种模型在实时应用中可能会导致设备控制设备的过度操作。为实现无功调度，电力企业应加大设备投入，增加运维人力。另一方面，这些操作也会增加电力系统的故障概率。为此，本文对调节控制装置的费用进行了研究，提出了一种新的调节控制装置的数学模型，该模型的目标函数是使当前时间间隔和控制装置调节的能量损失最小。仿真结果表明，该模型反映了利润最大化的原则，能较好地描述具有时变负荷的ORPD问题，在降低有功网损的同时避免了过多的控制。
The traditional model of optimal reactive power dispatch (ORPD) for power systems is based on the principle of income maximization, which aims at minimizing active power loss of the whole networks. However, such a model may bring on excessive operations of device-control devices in real-time application. To realize reactive power dispatch, power utilities should increase equipment investment and added manpower for operation and maintenance. On the other hand, the operations would augment the fault probability of power systems. Therefore, the costs of adjusting the control devices (CACDs) are investigated, and a novel mathematical model of ORPD is presented in this paper, whose objective function is to minimize the energy loss at the current time interval and the CACD. A simulation test is presented to demonstrate that the proposed model reflects the principle of profit maximization and describes the ORPD problem with time-varying loads appropriately since it can decrease active power loss and avoid excessive controls simultaneously.