Modeling and Fault Analysis for Power Conditioning System of Giant Solid-State Laser Facility

Power conditioning system (PCS), which provides matched pulse energy for the amplifier, is the key subsystem of a giant solid-state laser facility. It consists of many power conditioning modules (PCMs). Some of the catastrophic faults such as capacitor short-circuit, high voltage cable head short-circuit, or high and low voltage busbar short-circuit, might occur when there is high voltage in the PCMs. To analyze these cases, first, the model of a PCM was proposed. Second, three main faults of a PCM were introduced and the models of them were built. Third, a PCM experimental device with ten xenon lamps in parallel was designed and built, and the experimental results verified the effectiveness of the proposed model. In this article, three fault simulation results were analyzed and the security design recommendations were presented, which can provide reference value for the design of such power system.