The Development Of The Power Supply Monitoring System Interface On J-TEXT Tokamak

The energy problem of modern society is increasingly serious, Fusion is the most feasible way to solve the problem, magnetic constraint fusion is the most likely way to realize the fusion's application. Tokamak facility lead the tide of the magnetic constraint fusion study, the power supply system is the key element which should be integrated to a tokamak facility. Power supply system produce currents precisely for these magnetic coils in the proper way.So the generated magnitic fields can produce,confine and heat plasma,and drive and maintain plasma current as well.It is the base to maintain a tokamak facility'smooth running.The Joint TEXT tokamak is a medium-sized tokamak facitity operated by Huazhong University of Science and Technology.It has a good running state since 2007, many physics experimental researches on plasma are being carried out.There are four power supply systems on J-TEXT tokamak,including toroidal field,ohm field,vertical field and horizontal field. The control system of power supply system is developed on QNX RTOS,and it take the distributed control single-supply operation mode,simple and stable. It is the base for J-TEXT power supply system's stable operation. The primary power supply control system used the command line character type control operation mode,which cased the operation complex and the user can not monitor the power supply system's state.This paper focused on the shortage of the power supply control system,based on QNX system,developed a friendlyman-machine interface.It is hoped that users can operate it conveniently,and it is a friendly,stable monitoring interface.The monitoring interface of the power supply system can save the user a lot of work.It will display the power system real- time running state. It have more important practical significance for the reliable operation of the power system. The paper carried out demand analysis, the whole design ,optimization design,based on the stability and real-time premise of the power supply control system. It use photon tools in QNX system to develop J-TEXT power supply control systeminterface. The interface has good stability and real-time characteristics. On one hand, it can supply user convenient and stable power supply operation mode and monitoring mode, on the other hand, it saves users a lot of time, improves workers' efficiency. Using EPICS(Experimental Physics and Industrial Control System)to develop monitoring interface of J-TEXT power supply system operation state, which can realize the remote monitoring and real-time display of power system running state. It is the first time for EPICS applied to J-TEXT power supply monitoring system, which laid a good foundation for the development of the J-TEXT central control system based on EPICS.