10kV开关柜CT液压伺服输出控制系统设计  

Design of CT hydraulic servo output control system for 10 kV switch cabinet

作　　者：余东旭 林仁兴 张文雯 徐园 王刚 YU Dongxu;LIN Renxing;ZHANG Wenwen;XU Yuan;WANG Gang(State Grid Zhejiang Xiangshan Power Supply Co.,Ltd.,Ningbo 315700,China)

机构地区：[1]国网浙江象山县供电有限公司,浙江宁波315700

出　　处：《电子设计工程》2021年第2期108-111,117,共5页Electronic Design Engineering

基　　金：浙江省科技创新项目(CJGR201904)。

摘　　要：针对传统控制系统控制效果差的问题,提出了10kV开关柜CT液压伺服输出控制系统。根据控制系统的组成结构,设计伺服驱动器,将多个输入信号进行放大处理,根据综合信号极性不同,控制伺服电机信号输出。选用4~20 mA扩散硅压力传感器,其具有IP65防护等级,可减小瞬时压力对内部膜片的冲击。设计实时控制器结构,使用DAC7625芯片实现数字信号向模拟信号的转换。分别设计上位机人机界面功能和下位机软件部分,由此完成CT液压伺服输出控制系统的设计。通过仿真实验可知,该系统控制效果较好,为10kV开关柜CT液压伺服输出控制系统设计提供了可行性方案。In view of the poor control effect of the traditional control system,a 10 kV switch cabinet CT hydraulic servo output control system is proposed and designed.According to the structure of the control system,the servo driver is designed to amplify multiple input signals and control the signal output of the servo motor according to the different polarity of the integrated signal.4~20 mA diffusion Silicon pressure sensor with IP65 protection grade is selected to reduce the impact of instantaneous pressure on the internal diaphragm.The structure of real-time controller is designed,and DAC7625 chip is used to realize the conversion from digital signal to analog signal.The human-machine interface function of the upper computer and the software part of the lower computer are designed respectively,so as to complete the design of the CT hydraulic servo output control system.The simulation results show that the control effect of the system is good,which provides a feasible scheme for the design of CT hydraulic servo output control system of 10 kV switch cabinet.

关 键 词：10KV开关柜 CT液压伺服 输出控制 硅压力传感器 

分 类 号：TN820.3[电子电信—信息与通信工程]