Digital Control System of a Switching Current Source for Plasmatron Power Supply

The search for optimal settings of a plasma arc current digital PI controller in various dynamic modes and under the effect of external disturbances using the tools of the Simulink environment and the invariance theory, then construction of an appropriate robust control system on their basis are considered. The problem of constructing a combined control system using digital methods is solved and implemented in a power source for plasma cutting. The results obtained may be of interest to specialists in the field of power electronics, power supply systems for autonomous objects and control systems.