三绕组降压变压器分接头的选择  

Tap-changer Selection of Three-winding Step-down Transformer

作　　者：吕博宇 徐志友 邱巍 徐聪 王海越 LYU Boyu;XU Zhiyou;QIU Wei;XU Cong;WANG Haiyue(School of Electric Power,Shenyang Institute of Engineering,Shenyang 110136,Liaoning Province;Shenyang Borui Power Technology Co.,Ltd.,Shenyang 110000,Liaoning Province;Inner Mongolia Shangdu Power Plant,Xilinguole 027200,Inner Mongolia)

机构地区：[1]沈阳工程学院电力学院,辽宁沈阳110136 [2]沈阳博锐电力科技有限公司,辽宁沈阳110000 [3]上都发电有限责任公司,内蒙古锡林郭勒027200

出　　处：《沈阳工程学院学报（自然科学版）》2023年第4期51-55,共5页Journal of Shenyang Institute of Engineering:Natural Science

基　　金：沈阳工程学院2023大创项目(X202311632139)。

摘　　要：为求出三绕组降压变压器分接头的全部解,对于有载逆调压和无载顺调压三绕组降压变压器,采用不等式组的方法确定高压侧和中压侧分接头。算例表明:对于有载逆调压三绕组降压变压器,不但可以求得已知解,还可以找到丢失的解;对于无载顺调压三绕组降压变压器,在无解时不但可以求得已知近似解,还可以找到丢失的近似解。对于三绕组降压变压器分接头的选择,采用不等式组方法优于常用的平均数法。In order to find out the complete solution of the three-winding step-down transformer tap,the inequality method was used to determine tap-changers on the high-voltage and medium-voltage side of the OLTC and NLTC three-winding step-down transformer.The calculation shows that not only the known solution but also the lost solution can be found for the three-winding OLTC step-down transformer,and for the threewinding NLTC step-down transformer,not only the known approximate solution but also the lost approximate solution can be found when there is no solution.In a word,the inequalities method is superior to the average method for the tap changers selection of three-winding step-down transformer.

关 键 词：三绕组降压变压器 有载调压 无载调压 不等式组 

分 类 号：TM712[电气工程—电力系统及自动化]