Control system of high-voltage pulse power supply for compact torus injector based on EPICS.

• The slow controller is designed to realize operation and monitoring, and high precision timing controller with 10 ns precision is developed to control the timing sequence. • High precision timing controller use timer with different precision to output control pulses according to control requirements. • All the connections among the sub-systems use optical fiber to isolate the cross disturbance. The Compact Torus Injector (CTI) is a magnetic confinement fusion device feeding system, which injects the excited compact toroidal plasma into the target device at high speed, and controls the fuel injection and injection speed to achieve optimal control of the density pressure profile of the magnetic confinement fusion device. As the important subsystem of the CTI, the CTI High-Voltage Pulse Power Supply (HVPPS) system consists of five sets of power supply. This paper uses EPCIS as a development platform to design the control system of the CTI HVPPS which realizes timing sequential control, status detection, parameter setting and read-back status of the CTI power supplies with different communication interfaces and protocols. The discharge experiments are performed on the CTI. The experimental results prove that the control system meets the real-time control requirements of CTI devices for HVPPS. (Abstract) [ABSTRACT FROM AUTHOR]