广州电网容载比合理取值的研究

容载比是目前城市电网规划布点和容量选择中普遍采用的指标，其取值是否合理直接影响电网规划的规模及经济性。城网规划导则只给出了容载比取值的范围，这样，如何选择某一地区电网规划应采用的合理容载比，成为城网规划经济性的关键。为此，针对容载比计算公式中各系数的意义，分析影响各系数取值的主要因素，从而求得合理容载比数值的方法。

Research on reasonable value of capacity-load ratio in Guangzhou power grid

Capacity-load ratio is a widely used index for substation siting and capacity selection in urban power network planning,the value of which has great influence on the scope and economic efficiency of power network planning.Seeing that relevant guide for urban power grid planning in China only suggests the range of capacity-load ratio value,this paper makes a research on the determination of reasonable capacity-load ratio.In view of the significance of the four coefficients in the calculating formula of capacity-load ratio,the main factors influencing the four coefficients are analyzed.With the analysis of the determination of reasonable capacity-load ratio in Guangzhou power grid,it is pointed out that the capacity-load ratio should be determined rationally based on in-depth analysis of main influencing factors according to the features of the given power grid.