摘要
为更好地控制Buck-Boost变换器输出电压,采用考虑管压降的状态空间平均模型,使用模型预测控制进行输出电压的控制.选取合适的二次性能指标作为模型预测控制的目标函数,使变换器具有较快的响应速度和较小的电压超调量,同时设置电容电压和电感电流的约束条件,以保证Buck-Boost变换器的安全性.研究结果表明:模型预测控制在Buck-Boost变换器中具有很好的控制效果.
In order to better control the Buck-Boost converter output voltage, this paper adopted state-space average model that considers the drop of tube voltage, and utilized the model predictive control to control the output voltage. Appropriate second order performance indicators are chosen as the objective function of the model predictive control, making the converter has fast response rate and low voltage overshoot. And the constraint condition of inductor current and capacitor voltage were set to ensure the safety of Buck-Boost converter. The simulation shows that the model predictive control has good control effects in the Buck-Boost converter.
作者
马奥运
MA Aoyun(Faculty of Electrical and Control Engineering, Liaoning Technical University, Huludao 125105, China)
出处
《辽宁工程技术大学学报（自然科学版）》
CAS
北大核心
2017年第1期78-82,共5页
Journal of Liaoning Technical University (Natural Science)
