按不同的补偿目的计算集中补偿电容器容量

Calculating the Capacity of Concentrate Compensatory Capacitor on Different Compensatory Purpose

在变电所内安装集中补偿电容器,是当前无功补偿的主要方式。通过加装无功补偿,可以提高变电所的母线电压、降低电网的电能损耗、提高设备的输电能力、减少用户电费支出。虽说这些功能是相互关联的,但补偿的目的不同,其补偿容量的计算也不同。本文通过理论分析,从定量的角度推导出不同的补偿目的所需安装补偿电容器的容量。

Setting up the compensatory capacitor in the transformer station is the main manner of reactive power compensation currently. It can increase the bus voltage, decrease the loss of electricity, improve the power transmission and reduce the energy change cost, through adding reactive power compensation.Although these functions are correlative, the purpose of compensation is different, and the calculation of compensative capacity is different too. This text deduces different capacities of compensation purpose which setting up compensatory capacitor requires from the point of view of the fixed quantify through the theoretical analysis.