摘要
由于Boost变换器应用十分广泛且具有丰富的动力学特性,在Boost变换器的基础上稍作修改,构建了直流电动机回馈能量的电流控制Boost变换器。通过对该变换器开关状态的完整描述,建立了符合实际电路限定条件下的离散时间模型,基于该模型,通过分岔图分析随输入电压和参考电流变化时变换器的稳定性,揭露了该开关变换器存在周期分岔、边界碰撞分岔、鲁棒混沌及阵发混沌等复杂动力学行为。通过PSIM仿真电路,得出了变换器的时域波形,验证了分岔分析的正确性。其分析方法和研究结果对Boost变换器在直流电动机传动的应用具有重要意义。
Because Boost converter is widely used and has abundant dynamic characteristics,a current-controlled Boost converter with DC motor feedback energy is constructed by improving the traditional Boost converter.By describing the switching state of the converter,a discrete time model was established,which conformed to the actual circuit constraints.Based on the model,with variation of input voltage and reference current on the stability of the converter was analyzed by bifurcation diagrams.Meanwhile the complex dynamic behaviors of the switch converter were revealed,such as period bifurcation,border collision bifurcation,robust chaos and intermittent chaos,etc.Through the simulation of PSIM circuit,the time domain waveform of the converter is obtained,which verifies the correctness of the bifurcation analysis.The analysis method and research results are of great importance to the application of converters in the transmission of DC motors.
作者
杨艳
任康成
姚肖勇
武洲
YANG Yan;REN Kangcheng;YAO Xiaoyong;WU Zhou(Changzhou Xingyu Automotive Lighting Systems Co.,Ltd.,Changzhou Jiangsu 213022,China)
出处
《汽车零部件》
2019年第4期36-40,共5页
Automobile Parts
