Dynamic Phasor Model Predictive Control of Switched Mode Power Converters
Dynamic Phasor Model Predictive Control of Switched Mode Power Converters
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DOI：
10.1109/tcst.2014.2317775
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发表时间：
2015
影响因子：
4.8
通讯作者：
S. Almér;S. Mariéthoz;M. Morari
中科院分区：
文献类型：
--
作者：
S. Almér;S. Mariéthoz;M. Morari
本文考虑开关模式功率转换器的模型预测控制 (MPC)，并使用代表转换器状态开关纹波的混合预测模型。该方法的目标是在稳态下实现输出的高动态性能和低谐波失真。有人认为，先前发布的功率转换器混合 MPC 方法对设备/模型不匹配很敏感，因此提出了替代问题表述。新公式用动态傅里叶系数描述转换器状态。这允许量化和反馈有关开关转换器波形的更多信息，从而可以减少对系统模型的依赖。建议的方法在模拟和实验中进行了评估，结果表明，与文献中的方法相比，它对工厂/模型不匹配的敏感度较低。
This paper considers model predictive control (MPC) of switched mode power converters and uses a hybrid prediction model that represents the switching ripple of the converter state. The goal of the approach is to achieve both high dynamic performance and low harmonic distortion of the output at steady state. It is argued that the previously published approaches to hybrid MPC of power converters are sensitive to plant/model mismatch, and an alternative problem formulation is suggested. The new formulation describes the converter state in terms of dynamic Fourier coefficients. This allows to quantify and feed back more information about the switched converter waveform, and can thus reduce the dependence on the system model. The suggested approach is evaluated in both simulation and experiment, and it is shown to be less sensitive to plant/model mismatch than approaches from the literature.