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Operation mode optimization method of power grid with equipment monthly maintenance planning
Author(s): 
Pages: 102-107
Year: Issue:  9
Journal: Relay

Keyword:  transmission and transformation equipmentmonthly maintenance planningoperation mode optimizationtransient stability constraintcomprehensive sensitivity index;
Abstract: 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.
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