HL-2A装置LHCD系统灯丝电源远程控制的一种新方法

为解决 HL-2A 装置低杂波电流驱动(LHCD)系统灯丝电源无法远程控制的问题，介绍了基于西门子WinCC 监测系统的 HL-2A 装置 LHCD 系统灯丝电源 MSComm 串行通信系统的设计与实现。在 WinCC 图形编辑器中直接调用 MSComm 控件，编写 VBS 全局脚本实现对串口的访问，解决了硬件组态过程中串行通讯操作被WinCC 所限制的问题。采用了虚拟串口技术、工业以太网通讯技术、光纤隔离技术等，提高了 WinCC 组态串口设备的灵活性。HL-2A 装置 LHCD 实验证明，在 HL-2A 装置放电的复杂电磁环境下，LHCD 灯丝电源 MSComm串行通信系统运行稳定、功能完善。

A new method for remote control of filament power supplyfor the LHCD system on HL-2A tokamak

The filament power supply of the Lower Hybrid Current Drive (LHCD) system on HL-2Atokamak could not be controlled remotely before, so the design and implement of serial communication systembased on WinCC ActiveX control MSComm for the filament Power supply of LHCD system was presented. Wecalled the ActiveX control MSComm directly in the Graphics Designer of WinCC and programmed in VBSGlobal Scripts to realize serial communication. We can use WinCC more flexibly by using the industrial Ethernetnetwork, serial communication and virtual serial port. The LHCD experiments on HL-2A show that theMSComm-serial communication system of filament power supply for LHCD can operate stably and have theperfect function under the complicated electromagnetic environment during the discharge on HL-2A tokamak.