A new control system of shattered pellet injection (SPI) has been successfully developed and implemented in the experimental advanced superconducting tokamak. The control system comprises four functional modules responsible for vacuum acquisition, temperature regulation, gas supply, and system protection, which facilitate the safe and stable operation of the SPI. The software framework employed for the SPI control system incorporates experimental physics and industrial control system and Phoebus. Utilizing these integrated control systems, the gun barrel temperature and material gas pressure could be accurately controlled during pellet forming phase. Also, it could cooperatively control the various types of valves to achieve material gas supply, propellant gas supply and timely pumping. Finally, the pellet was successfully generated, separated from the gun barrel, and accelerated into the plasma vacuum vessel controlled by this system. In addition, the issue of extended delay time was observed in SPI experiments, and a potential solution is also proposed in the paper.

一种新型破碎颗粒注入（SPI）控制系统已成功开发并在实验性先进超导托卡马克中实现。控制系统由真空采集、温度调节、供气、系统保护四个功能模块组成，保证了SPI的安全稳定运行。SPI控制系统采用的软件框架结合了实验物理和工业控制系统以及Phoebus。利用这些集成控制系统，可以在丸粒成型阶段精确控制枪管温度和原料气体压力。并可协同控制各类阀门，实现原料气供应、推进剂气体供应和及时抽气。最后，颗粒成功生成，与枪管分离，并加速进入由该系统控制的等离子体真空容器中。此外，在SPI实验中观察到延迟时间延长的问题，论文还提出了潜在的解决方案。