Novel IPOx Architecture for High-Voltage Microsecond Pulse Power Supply Using Energy Efficiency and Stability Model Design Method

The high-voltage microsecond pulse power supply (HV-MPPS) is a key power input device for the study and application of plasma discharge. The energy-storage-based high-voltage pulse power supply outputs microsecond pulsewidths to obtain high-power, ultra-high voltage, and fast front-end output pulses, which are suitable for most plasma discharge applications. However, with the increasing output power requirement of the HV-MPPS, the traditional energy storage type architecture will increase dramatically in volume and weight with lower output efficiency and lower reliability, so it will not be able to achieve optimal electrical performance in plasma discharge applications. This article proposes a design method of energy efficiency and stability model based on the system architecture of IPOx (input parallel output x), where “x” means the output terminal can be in parallel (IPOP) or series (IPOS), in the application field of low-temperature plasma dielectric barrier discharge (DBD) discharge. The optimal multimodule connection mode and the number of modules can be calculated and designed easily according to different DBD electrode structures using energy efficiency and stability model design method. Finally, the proposed energy efficiency and stability model is verified by comparing the electrical experimental results and discharge status photographs of two type DBD electrodes with the 2/3/4 modules IPOx system platform.