摘要:电力系统的调压比较复杂，系统中的每一个节点电压都不相同，用户对电压的要求也不尽相同。所以不可能只调整一到二处电压就可以满足调压的要求，而要根据不同情况在不同节点采用不同的调压方式。
此设计主要针对某110KV变电站的调压系统进行设计，在此变电站中有两台有载调压降压变压器。取变压器35KV，10KV，6KV出口处母线，通过至少两种调压方式的对比，选择较为合理的一种运用。在变电站中可以通过发电机调压，改变变压器变比调压，安装无功功率补偿装置调压，以及改善线路参数调压。通过发电机调压调整了10KV和6KV出口处的电压；通过变电压的参数进行计算，确定了两台有载调压变压器的变比；在变压器10KV，35KV出口处安装了无功功率补偿装置电容器和调相机；改善了变压器35KV出口处的线路参数，在输电线路上串联静电电容器提高线路的末端电压。经过电压偏移大小的比较，最终确定调压方式为：变压器35KV出口处选择串联电容器以改善线路参数调压；在1号变压器10KV出口处和2号变压器6KV出口处选择发电机调压。
关键字：电力系统；电压偏移；无功功率补偿；综合调压系统
ABSTRACT:Regulator of the power system is relatively complex, each node in the system are not the same voltage, the voltage requirements also vary. It is not possible to adjust only one to two voltage regulator to meet the requirements, according to different situations in different nodes using different regulator.
This design is mainly for a 110KV substation voltage regulation system design, two substation load tap changer. Take transformer 35KV, 10KV, the 6KV export at the bus, at least two of the regulator by contrast, a more reasonable use. In the substation by generator voltage regulator, changing the transformer turns ratio regulator, installation of reactive power compensation device regulator, as well as to improve the line parameters regulator. Generator voltage regulator to adjust the voltage of 10KV and 6kV at the outlet; calculated by the parameters of the alternating voltage to determine the two OLTC transformer turns ratio; transformer 10KV, 35KV at the outlet installed reactive power compensation device capacitors and adjusting the camera; improved transformer 35KV line parameters at the outlet of the static capacitor in series by the end of the line voltage transmission lines. After comparison of the voltage offset size, and ultimately determine the regulator: transformer 35KV exit of series capacitor line parameters to improve the regulator; transformer 10KV at the outlet of shunt capacitors for reactive power compensation device regulator; transformer 6kv export selected at power generation The machine voltage regulation.
Keywords: power system; voltage offset; reactive power compensation; integrated regulator system
