New voltage mode control method for the quasi-Z-source-based isolated DC/DC converters
New voltage mode control method for the quasi-Z-source-based isolated DC/DC converters
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基于准Z源的隔离DC/DC变换器的新电压模式控制方法
DOI：
10.1109/icit.2012.6210011
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发表时间：
2012
期刊：
影响因子：
--
通讯作者：
D. Vinnikov
中科院分区：
文献类型：
--
作者：
I. Roasto;D. Vinnikov
提出并分析了一种适用于准Z源隔离DC/DC转换器的新型电压模式控制方法。传统的Z源或准Z源变流器的控制方法都是基于直流侧电压调节的，这也间接影响了输出。所提出的控制方法直接测量输出电压，因此可以对负载变化做出更好的响应。推导了该变流器的小信号交流模型，找出了合适的传递函数。在建立数学模型和仿真模型的基础上，分析了该控制方法的优缺点。仿真结果与实验结果进行了验证。在一台2kW的实验样机上进行了试验。
A new voltage mode control method for the quasi-Z-source isolated DC/DC converter is proposed and analyzed. Conventional control methods for Z-source or quasi-Z-source converters are based on the DC-link voltage regulation, which indirectly also influences the output. The proposed control method measures the output voltage directly and therefore better response to load changes can be expected. Small-signal AC models of the converter are derived and appropriate transfer functions found. Benefits and drawbacks of the proposed control method are analyzed on the basis of mathematical and simulation models. Simulation results are verified with experimental results. Tests were carried out on a 2 kW experimental prototype.