有载分接开关快速机构动力学特性及对电气时序影响分析  

Analysis of Dynamic Characteristics and its Influence on Electrical Sequence for On-load Tap Changer Fast Mechanism

作　　者：魏方岩 汪可 李金忠 余一鸣[4] 张书琦 陆毅 李刚 张进华 WEI Fangyan;WANG Ke;LI Jinzhong;YU Yiming;ZHANG Shuqi;LU Yi;LI Gang;ZHANG Jinhua(Key Laboratory of Education Ministry for Modern Design&Rotor-Bearing System(Xi’an Jiaotong University),Xi'an 710049,Shaanxi Province,China;China Electrical Power Research Institute,Haidian District,Beijing 100192,China;State Grid Corporation of China,Xicheng District,Beijing 100031,China;Shanghai Huaming Power Equipment Manufacturing Co.,Ltd.,Putuo District,Shanghai 200333,China)

机构地区：[1]现代设计及转子轴承系统教育部重点实验室(西安交通大学),陕西省西安市710049 [2]中国电力科学研究院有限公司,北京市海淀区100192 [3]国家电网有限公司,北京市西城区100031 [4]上海华明电力设备制造有限公司,上海市普陀区200333

出　　处：《中国电机工程学报》2023年第14期5674-5682,共9页Proceedings of the CSEE

基　　金：国家电网公司总部科技项目:新型分体式有载分接开关关键技术研究(5500-202055351A-0-0-00)。

摘　　要：快速机构是有载分接开关切换芯体的能量供应中心。以有载分接开关压缩弹簧型快速机构为研究对象,该文通过对快速机构的切换过程研究,建立快速机构的动力学仿真模型,研究快速机构中弹簧预储存能量和飞轮转动惯量对快速机构释放能量时间和剩余能量的影响规律,建立恒阻力矩条件下的储能机构释放能量时间和剩余能量数学预测模型,给出一种确定负载条件下,面向不同切换时间的储能机构所需弹簧预储存能量精确预估方法。研究储能机构不同切换时序下的电气特性,为确定最优的电气切换时序和建立快速机构理想切换时序与机械驱动角度之间的对应关系提供了参考;探究吸振块阻尼系数对快速机构扳机冲击力和飞轮最大旋转角度的影响,为优选有载分接开关快速机构吸振块提供了理论基础。A quick mechanism is an energy supply center of a switching core for an on-load tap-changer.This paper takes a spring type quick mechanism of the on-load tap-changer as a research object,and establishes a dynamic simulation model of the quick mechanism by studying switching processes of the quick mechanism.Effects on release time and residual energy of the quick mechanism are studied for spring pre-stored energy and flywheel moment of inertia.A mathematical prediction model of energy release time and residual energy is established for the quick mechanism under constant resistance torque condition.An accurate prediction method on pre-stored energy of spring is presented for quick mechanism with different switching time under load conditions.Electrical characteristics of the quick mechanism under different switching sequences are studied,which provides a reference for determining the optimal electrical switching sequence and the corresponding relationship between the ideal switching sequence of the quick mechanism under the determined load and the mechanical driving angle.Influences of the damping coefficient for the vibration-absorbing block on the impact force of trigger and the maximum rotation angle of the flywheel are explored,which provides a theoretical basis for optimization on the vibration absorbing block for the quick mechanism of the on-load tap-changer.

关 键 词：有载分接开关 快速机构 动力学分析 能量预估方法 阻尼系数 

分 类 号：TM403[电气工程—电器]