摘要:電力系統(tǒng)的調壓比較復雜，系統(tǒng)中的每一個節(jié)點電壓都不相同，用戶對電壓的要求也不盡相同。所以不可能只調整一到二處電壓就可以滿足調壓的要求，而要根據不同情況在不同節(jié)點采用不同的調壓方式。

　   此設計主要針對某110KV變電站的調壓系統(tǒng)進行設計，在此變電站中有兩臺有載調壓降壓變壓器。取變壓器35KV，10KV，6KV出口處母線，通過至少兩種調壓方式的對比，選擇較為合理的一種運用。在變電站中可以通過發(fā)電機調壓，改變變壓器變比調壓，安裝無功功率補償裝置調壓，以及改善線路參數調壓。通過發(fā)電機調壓調整了10KV和6KV出口處的電壓；通過變電壓的參數進行計算，確定了兩臺有載調壓變壓器的變比；在變壓器10KV，35KV出口處安裝了無功功率補償裝置電容器和調相機；改善了變壓器35KV出口處的線路參數，在輸電線路上串聯靜電電容器提高線路的末端電壓。經過電壓偏移大小的比較，最終確定調壓方式為：變壓器35KV出口處選擇串聯電容器以改善線路參數調壓；在1號變壓器10KV出口處和2號變壓器6KV出口處選擇發(fā)電機調壓。

關鍵字：電力系統(tǒng)；電壓偏移；無功功率補償；綜合調壓系統(tǒng)

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