Predictive Control With Novel Virtual-Flux Estimation for Back-to-Back Power Converters
Predictive Control With Novel Virtual-Flux Estimation for Back-to-Back Power Converters
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DOI：
10.1109/tie.2014.2361802
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发表时间：
2015-05
影响因子：
7.7
通讯作者：
Zhenbin Zhang;He Xu;M. Xue;Zhe Chen;Tongjing Sun;R. Kennel;C. Hackl
中科院分区：
文献类型：
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作者：
Zhenbin Zhang;He Xu;M. Xue;Zhe Chen;Tongjing Sun;R. Kennel;C. Hackl
提出并实验验证了一种新的虚拟磁链（VF）估计方法，用于空间矢量调制器（SVM）的背靠背电压源功率变换器的预测控制。所提出的方法的新奇是开发的时域初始偏置补偿虚拟磁通（IBC-VF）的估计方法和预测控制方案与恒定的开关频率相结合。详细阐述了该方法的理论分析和实现过程。与两种传统的基于带通滤波器的VF估计方法相比，提出的IBC-VF方法显示出更快的动态响应。整个基于IBC-VF的预测控制方案是在$\alpha\beta$框架中实现的，因此不需要Park变换。所提出的控制方案是实现在一个商业现成的现场可编程门阵列为基础的平台。通过使用单周期定时循环（SCTL）技术，整个计算在2.6 $\mu\hbox{s} $内完成，使计算时间的补偿过时。仿真和实验结果都表明了该方案的有效性。
This work proposes and experimentally verifies a novel virtual flux (VF) estimation method for the predictive control of back-to-back voltage-source power converters with a space vector modulator (SVM). The novelty of the proposed approach is the development of a time domain initial bias compensation virtual flux (IBC-VF) estimation method and its combination with a predictive control scheme with constant switching frequency. Theoretical analysis and implementation procedures of the proposed method are developed in detail. Compared to two conventional bandpass filter-based VF estimation methods, the proposed IBC-VF method shows a much faster dynamic response. The whole IBC-VF-based predictive control scheme is realized in the $\alpha\beta$ frame and so does not require Park's transformation. The proposed control scheme is implemented on a commercial off-the-shelf field-programmable-gate-array-based platform. By using a single-cycle timed loop (SCTL) technique, the whole computation is finished within 2.6 $\mu\hbox{s} $, making the compensation of the calculation time obsolete. Both simulation and experimental results emphasize the effectiveness of the proposed scheme.