基于分时-相位控制串联谐振逆变器的研究

Research of Series Load Resonant Inverter Based on Time-sharing and Phase-controlling

针对串联谐振逆变器频率提高和功率调节难的问题,提出了新型分时-相位复合控制策略,采用逆变开关的分时段控制来提高频率,通过改变电压电流的相位差来调节功率。在系统建模和理论分析的基础上,分析电路的结构和工作原理,并对其进行相关的计算机仿真分析,给出了仿真波形。结果表明,该控制方法结构简单、控制方便,功率调节容易,可以实现基于时间分割的倍频控制,有效地提高了电源的频率,具有很好的应用前景。

Aiming at the problem of frequency increasing and power adjusting of series load resonant inverter,a novel time-sharing and phase-controlling strategy is proposed,using the time-sharing of inverter switch to increase the frequency,adjusting the power by changing the phase of voltage and current.Based on the system modeling and theory analysis,the structure and working principle of the circuit are analyzed,then the computer simulation and analysis are carried out,and the simulation waveform is provided.The result shows that it makes the structure simple, the controlling convenient and the power-changing easy,realizes frequency controlling based on time-sharing, increases the frequency effectively. The strategy has a very good prospect.