Boost变换器中参数斜坡共振控制能力研究

以电流型Boost电路为基础，以电感电流的参考值作为共振参数，详细研究了斜坡共振的调整过程及其控制能力，推导了稳定状态电路的特征参数.分别针对分岔和混沌电路，研究了不同共振电压幅值时参数斜坡共振的控制能力及其稳定参数，从而实现准确的电路参数设计，确保电路稳定可靠地工作.关键词：Boost变换器分岔混沌控制参数共振

Study on control power in Boost converter with parameter ramp resonance

The bifurcation and chaos should exist in Boost converter while the circuit stability conditions are not satisfied，and the stable state could not be gotten by its self control power. As a kind of OGY method without feedback，the parameter resonance can control the bifurcation and chaos in Boost converter. Based on current controlled Boost circuit，the regulating process and its control power are discussed with the reference value of inductor current as the resonant parameter，and the characteristic parameters in the stable state are also deduced in detail. The control power of parameter resonance with different resonant voltages and the stable characteristic parameters are analyzed for the bifurcation and chaos circuits，so as to realize the precise design of circuit parameters and ensure the Boost converter to work steadily and reliably.