介绍了中国高能同步辐射光源验证装置（HEPS-TF）中超导3W1扭摆磁铁控制系统的设计。该控制系统主要包括电源控制系统和低温信号监测系统。整个控制系统基于实验物理及工业控制系统（EPICS），其硬件结构以串口服务器为核心，将接口转换为标准的RS232/485接口。软件方面，通过应用StreamDevice设备驱动模块开发了基于Modbus协议的EPICS驱动，缩短了设备驱动的开发周期。上层控制界面采用嵌入了EPICS Qt框架的Qt Creator开发，增强了其灵活性。目前控制系统的离线测试已完成。

This paper describes the design of a control system for 3W1 wiggler in the Chinese High Energy Photon Source-Test Facility (HEPS-TF). The control system includes the superconducting power supply control system and the cryogenic monitor system. It is based on the Experimental Physics and Industrial Control System(EPICS) and the hardware core of the control system is a serial port server which normalizes the port to the standard RS232/485 serial port. StreamDevice has been used to develop the EPICS driver whose protocol is based on Modbus. High level applications are developed by Qt Creator embedded with EPICS Qt framework. At present, the control system has been basically completed and tested off-line.