电网规划中对变电容载比配置的研究

Research on Allocation of Variable Capacitor LoadRatio in Power Grid Planning

变电容载比取值的合理性在电网规划中起着重要作用。由于经济社会持续发展对电力的需求,近几年来随着电网规划的逐步实施,各电压等级变电容量有序增大,但受经济形势及负荷分布不均匀影响,使得各电压等级下综合容载比已不能准确反映单个变电站容量裕度情况。文章提出了对单个变电站的容载比取值的改进模型,结合综合容载比对单个变电站容载比的合理取值进行了改进分析,结合实例求得容载比在单个变电站容量规划中的应用。

The rationality of the value of variable capacitance to load ratio plays an important role in power grid planning.Due to the demand for electricity from sustainable economic and social development,with the gradual implementation of power grid planning in recent years,the transformation capacity of each voltage level has increased in an orderly manner.The load-to-load ratio can no longer accurately refl ect the capacity margin of a single substation.In this paper,an improved model for the value of the load-to-load ratio of a single substation is proposed,and the reasonable value of the load-to-load ratio of a single substation is analyzed by combining the comprehensive load-to-load ratio.The application of the load-to-load ratio in the capacity planning of a single substation is obtained by combining examples.