设备月度检修计划给定下的电网运行方式优化方法

摘要

Toimprove the rationality of operation mode of power gridwith equipmentmaintenance plan,theoptimization methodwithmonthly maintenanceplan of power transmission and transformation equipmentis proposed. The problemis divided into two parts. One is generation and load sharing based on the balanced power capacity. The other is adjusting the active power flow by improving the rationality of the schedule. The problem of generation and load sharing includes the historical period load pattern, spare capacity of the generator, and transmission loss, etc. In the problem of adjusting the improvement of the rationality of the method, based on the iterative adjustment of the comprehensive sensitive index, the trend of convergence of the basic state, the static safety of the switching of N-1, stability constraint of the transient angle during N-1 faultare considered. By exploring the comprehensive problem and implementing it step by step,this paper gets the power grid operation mode which meets the engineering rationality under transmission and transformation maintenance plan and reducesthe difficulty to solve the problem. The case based on the real power system verifies the proposed method.%为了提升设备计划下电网运行方式的合理性，给出了输变电设备月度检修计划给定下电网运行方式优化方法。将主问题分解为计及电力电量平衡的发电、负荷分配和提高计划方式合理性的有功潮流调整两个子问题。在发电和负荷分配问题中计及了历史同期负荷变化规律、系统旋转备用、网损等因素；在提高方式合理性的调整中，基于综合灵敏度指标迭代调整，分阶段考虑了基态潮流收敛性、N-1开断下的静态安全性、N-1故障下的暂态功角稳定性约束。通过对综合问题进行分解和分步实施，得到输变电设备检修计划下满足工程合理性的电网运行方式，并降低了求解难度。基于实际电网的算例验证了所提方法的有效性。