关键词: 负荷预测, 负荷空间分配, 潮流计算, 短路计算, 可靠性计算, N-1校验

Abstract: The idea of electrical core algorithm of planning power grid system and its implementation method were introduced, including load forecasting, load space distribution and electrical calculation. It creatively puts forward the realization method of spatial distribution of land’s load, which transforms the load in land into electrical load, so that it can be used in all kinds of electrical calculation of planning power grid, and solves the problem that the current domestic and foreign algorithms require too many input parameters of electrical calculation in planning power grid. An integrated calculation method of power flow calculation, short circuit calculation, reliability calculation and N-1 verification based on distribution network topology information is proposed. Based on the detailed analysis of the classical reliability formula, a more practical reliability formula is given innovatively and the concept of comprehensive failure rate is also proposed, which greatly simplifies the input conditions of the formula.

Key words: load forecasting, load space distribution, power flow calculation, short circuit calculation, reliability calculation, N-1 check