用于辉光放电清洗的LCC谐振变换器仿真

针对辉光放电清洗系统中气体击穿之后对电源的恒流要求，提出用LCC谐振变换器的新方案，以改进辉光放电清洗电源方案，增加电源方案储备。利用软件工具选取参数范围、辅助理解拓扑特性以及验证方案。分析了LCC传递函数中主要参数品质因数QL和串并联电容比A对电路增益以及谐振器件应力的影响，设计了合理的参数取值。根据参数取值，利用MATLAB仿真表明，电源的闭环仿真输出达到额定值，LCC拓扑能满足辉光放电清洗电源的参数要求。LCC谐振变换器的电流归一化曲线表现出良好的恒流特性，适合设计成电流源。

Simulation of LCC resonant converter applied to glow discharge cleaning power supply

Under the constant current requirement of the power supply after the gas breakdown in the glow discharge cleaning system, a new scheme of LCC resonant converter is proposed to improve the scheme of glow discharge cleaning power supply and increase the reserve of power supply scheme. The software tool is used to select the parameter range, assist to understand the topological characteristics and verify the scheme. The influence of the main parameter quality factor QL and the series and parallel capacitance ratio A in the LCC transfer function on the circuit gain and resonant device stress is analyzed, and the reasonable value is designed. Based on the designed value, MATLAB simulation indicates that the closed-loop output of the power supply reaches the rated value, and the LCC topology meets the requirements of glow discharge cleaning power supply parameters. The current normalization curve of LCC resonant converter shows good constant current characteristics and is suitable for designing as a current source.