摘要
实际大规模输电网架恢复时间与空间跨度大,涉及操作众多,需要各级调度共同参与,因此提出一种网架恢复的分层协同优化方法。引入"受电点"的概念,将输电网架拆分,构建基于受电点指标约定的恢复协作机制,继而建立网架恢复的分层协同优化模型。该模型将主网架重构完成度与各地区新增发电量作为优化目标,采用分层次独立优化与受电点指标值整体寻优相结合的方法,可有效降低问题求解规模,并能够兼顾求解全局性与各层级的恢复偏好。通过受电点指标约定,明确任务分工与各地区的操作边界,能够实现有功、无功的协调控制与分层分区独立并行恢复,可显著提高恢复效率。山东电网实际算例验证了所提方法的有效性和实用性。
Network restoration after a widespread blackout involves complicated multi-process operations with a large spatial and temporal span, which needs the cooperation of multi-level dispatching centers. So a hierarchical collaborative optimization method for network restoration was proposed. The concept of feed point （FP） was introduced and the network restoration was divided into two layers. An FP based restoration cooperation mechanism was built. And then the collaborative optimization model was established. The objectives of this model are defmed as network reconfiguration degree and total power production. The method combined hierarchical optimization with overall searching of the FP index value which makes the solving scale of the whole problem reduced dramatically. Global optimization and preference of each region can be obtained at the same time. The cooperation mechanism makes the task assignment clear. The coordination control of active/reactive power and multi-process parallel restoration operations can be achieved. The cases of Shandong power grid verify the effectiveness and practicability of this method.
出处
《中国电机工程学报》
EI
CSCD
北大核心
2015年第19期4906-4917,共12页
Proceedings of the CSEE
基金
国家重点基础研究发展计划项目(973项目)(2012CB215101)
国家自然科学基金项目(51177092)~~
关键词
网架恢复
恢复协作
多目标优化
大停电
network restoration
restoration cooperation
multi-objective optimization
blackout
