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首页> 外文期刊>Power Electronics, IET >Estimation of the bifurcation point of a modulated-hysteresis current-controlled DC–DC boost converter: stability analysis and experimental verification
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Estimation of the bifurcation point of a modulated-hysteresis current-controlled DC–DC boost converter: stability analysis and experimental verification

机译:调制迟滞电流控制DC-DC升压转换器的分叉点估计:稳定性分析和实验验证

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摘要

It is known that power electronic circuits such as DC–DC converters are rich in non-linear phenomena. It is often necessary to determine when the system becomes unstable. The authors investigate a continuous-time averaging model for a modulated-hysteresis current controller. This model is applied to a boost converter working in continuous conduction mode to estimate the bifurcation point and to study the stability of the controlled system. This controller ensures a fixed-switching frequency, a zero static error and high robustness properties of the system parameter variations. Simulation and experimental results are presented to validate the proposed approach.
机译:众所周知,功率电子电路(例如DC-DC转换器)具有丰富的非线性现象。通常需要确定系统何时变得不稳定。作者研究了调制磁滞电流控制器的连续时间平均模型。该模型被应用于以连续导通模式工作的升压转换器,以估计分叉点并研究受控系统的稳定性。该控制器可确保固定开关频率,零静态误差以及系统参数变化的高鲁棒性。仿真和实验结果被提出来验证所提出的方法。

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