矩阵变换器输入电流的状态反馈线性化控制

发布时间：2018-06-07 20:07

本文选题：矩阵变换器 + 状态反馈线性化　；参考：《高电压技术》2014年08期

【摘要】：在电压不平衡和负载不平衡等非正常工况下,矩阵变换器(MC)的输入电流波形不稳定,总谐波畸变率较大,严重影响负载的安全运行。为此,设计了一种全新的基于状态反馈线性化的矩阵变换器非线性控制器。首先根据矩阵变换器输入侧的拓扑结构,构建了矩阵变换器的数学模型,经过Park变换,得到了标准的仿射非线性系统,验证它符合反馈线性化条件后将它转化成线性系统并设计出状态反馈线性化控制器。MATLAB仿真结果表明,该方法可以有效地改善矩阵变换器在三相输入电压不平衡、三相负载不平衡等非正常工况下的输入电流性能,降低总谐波畸变率。
[Abstract]:Under the abnormal working conditions such as voltage imbalance and load imbalance, the input current waveform of the matrix converter is unstable and the total harmonic distortion rate is large, which seriously affects the safe operation of the load. Therefore, a novel nonlinear controller for matrix converter based on state feedback linearization is designed. Firstly, according to the topology of the input side of the matrix converter, the mathematical model of the matrix converter is constructed. After Park transformation, the standard affine nonlinear system is obtained. The simulation results of state feedback linearization controller. MATLAB show that the proposed method can effectively improve the unbalanced input voltage of the matrix converter in three phase. The performance of input current under abnormal working conditions such as unbalanced three-phase load reduces the total harmonic distortion rate.
【作者单位】：北京科技大学自动化学院;福建星网锐捷网络有限公司;马鞍山钢铁股份有限公司自动化工程公司;
【基金】：中央高校基本科研业务费专项资金(FRF-AS-09-006B) 北京市重点学科共建项目(XK100080537)~~
【分类号】：TM46

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