一种分析与设计电压型感应加热电源负载匹配静特性的新方法

介绍了适于电压型感应加热电源负载匹配的三种谐振电路拓扑.发现其中一种LCL型三阶谐振网络有其独特的优点.利用一种全解析的方法,分析了这种LCL型三阶负载谐振网络的静特性和参数设计方法.根据理论分析的表达式,利用Matlab绘制了相应的特性曲线,并根据对曲线的分析,给出了谐振槽电路匹配元件参数的工程设计方法.最后通过仿真和实验结果证明理论分析的合理性,为高阶谐振电路分析提供了一种新的分析思路,给大功率电压型高频感应加热电源的负载匹配提供了指导.

A New Analysis and Design Method of Load-Matching Static Characteristics for Voltage-Source Induction Heating

Three types of three-level high frequency resonant circuits which were used for the voltage-source inverter for induction heating were presented in this paper. It is found that the LCL type has more advantages. A new analyzing and designing method was provided. The principle functions were given and the engineering designing way of the resonant-net devices was introduced. The static characteristics of this circuit were analyzed in detail and curves of the characters were drawn with Matlab. The simulation and experimental results show that the conclusion is correct. A new train of thought for analyzing high-level resonant circuit was put forward.