基于机构合闸缓冲对快速接地开关过冲的研究  

Overshoot Research of Fast Earth Switch Based on Mechanism Closing Buffer

作　　者：华俊杰 庄燕燕 陈旭 严寿添 HUA Junjie;ZHUANG Yanyan;CHEN Xu;YAN Shoutian(Xi＇ an XD Switchgear Electric Co.,Ltd.,Xi＇ an 710077,China;Xi＇an XD High Voltage Switchgear Operating Mechanism Co.,Ltd.,Xi＇an 710077,China)

机构地区：[1]西安西电开关电气有限公司,西安710077 [2]西安西电高压开关操动机构有限责任公司,西安710077

出　　处：《高压电器》2018年第8期98-103,共6页High Voltage Apparatus

摘　　要：由于机构缓冲器设计不合适,会使高压开关内部运动部件过冲非常大,其中对快速接地开关运动部件过冲影响尤为明显。文中所研究的机构缓冲器是基于被动缓冲力学模型进行设计的,通过改变缓冲器尺寸,来分析缓冲器对快速接地开关运动部件过冲的影响。以合闸缓冲器尺寸为主要研究对象,同时考虑合闸速度、快速接地开关内部结构,研究不同情况下运动部件实际过冲现象。通过正交试验确定试验方案,以及FES运动部件实际运动曲线,得到各试验组下运动部件过冲值及缓冲投入位置。然后通过试验数据建立经检测的最优训练GA-BP神经网络,通过建立GA-BP神经网络模型进行预测,得到不同合闸速度和缓冲尺寸变化下运动部件过冲值和缓冲投入位置曲线。当合闸缓冲尺寸选择20 mm以上时,FES运动部件过冲很小,最终为高压开关产品可靠运行提供安全保障。Because of designing improper mechanism buffer,it is possible to bring very much large overshoot to internal moving component of high-voltage switch. It is especially obvious for moving component of fast earth switch（FES）. Firstly in this paper,mechanism buffer is designed based on passive buffer mechanical model. By means of changing the buffer dimensions,it is analyzed the buffer influence to moving component overshoot of FES. The buffer dimensions is selected as a mainly research object,meanwhile taking into account the closing speed and FES internal structure. It is discussed of the moving component overshoot in different circumstances. The test schemes are obtained by the orthogonal test design by means of FES moving component actual motion curve. Then the moving component overshoot and buffer absorbed positions are obtained in all test schemes. The GA-BP neural networks by measuring and optimum training are constructed by test data. At the same time,it is predicted by the GA-BP neural networks and then obtained the curve of moving component overshoot and buffer absorbed position in different closing speed and buffer dimensions. When the closing buffer dimensions are above of 20 mm,moving component of FES overshoot is very small. Finally it is best safety guarantee for the high-voltage switch reliability operation.

关 键 词：缓冲器 快速接地开关 过冲 神经网络 

分 类 号：TM564[电气工程—电器]