基于任意相位延时的单相整流器dq轴电流快速计算方法
发布时间：2018-07-15 11:03
【摘要】：以单相两电平脉冲整流器为研究对象,以提高其dq电流解耦控制的动态性能为目的,针对传统dq轴电流计算速度缓慢的问题,提出一种新的dq轴电流计算方法。首先,引入两相坐标系下空间复矢量的概念,建立整流器在dq坐标系下的数学模型,分析dq电流解耦控制的基本原理;然后,针对单相系统αβ-dq坐标转换需要引入虚拟正交分量问题,提出一种任意相位延时算法,并分析该算法的响应速度与抗噪声干扰能力,该算法与目前几种常用的正交信号产生(orthogonal signal generators,OSG)算法相比具有更快的响应速度,且无需复杂计算、实现简单容易;最后对所提出的算法结合单相整流器dq电流解耦控制进行计算机仿真与半实物实验验证,同时与几种常见OSG算法做对比实验,结果证明了所提算法的正确性与有效性。
[Abstract]:In order to improve the dynamic performance of DQ current decoupling control in single-phase two-level pulse rectifier, a new method of dq-axis current calculation is proposed to solve the problem of slow calculation speed of traditional dq-axis current. Firstly, the concept of space complex vector in two-phase coordinate system is introduced, the mathematical model of rectifier in dq coordinate system is established, and the basic principle of dq current decoupling control is analyzed. In view of the need to introduce the virtual orthogonal component problem into the 伪 尾 -dq coordinate transformation of single-phase systems, an arbitrary phase delay algorithm is proposed, and its response speed and anti-noise interference ability are analyzed. Compared with several orthogonal signal generation (orthogonal signal generators OSG (orthogonal signal Generation) algorithms, this algorithm has faster response speed and less complicated calculation, so it is simple and easy to implement. Finally, computer simulation and hardware-in-the-loop experiments are carried out to verify the proposed algorithm combined with dq current decoupling control of single-phase rectifier. At the same time, the proposed algorithm is compared with several common OSG algorithms. The results show that the proposed algorithm is correct and effective.
【作者单位】： 磁浮技术与磁浮列车教育部重点实验室(西南交通大学电气工程学院);
【基金】：国家自然科学基金资助项目(51677156)~~
【分类号】：TM461
本文编号：2123854
[Abstract]:In order to improve the dynamic performance of DQ current decoupling control in single-phase two-level pulse rectifier, a new method of dq-axis current calculation is proposed to solve the problem of slow calculation speed of traditional dq-axis current. Firstly, the concept of space complex vector in two-phase coordinate system is introduced, the mathematical model of rectifier in dq coordinate system is established, and the basic principle of dq current decoupling control is analyzed. In view of the need to introduce the virtual orthogonal component problem into the 伪 尾 -dq coordinate transformation of single-phase systems, an arbitrary phase delay algorithm is proposed, and its response speed and anti-noise interference ability are analyzed. Compared with several orthogonal signal generation (orthogonal signal generators OSG (orthogonal signal Generation) algorithms, this algorithm has faster response speed and less complicated calculation, so it is simple and easy to implement. Finally, computer simulation and hardware-in-the-loop experiments are carried out to verify the proposed algorithm combined with dq current decoupling control of single-phase rectifier. At the same time, the proposed algorithm is compared with several common OSG algorithms. The results show that the proposed algorithm is correct and effective.
【作者单位】： 磁浮技术与磁浮列车教育部重点实验室(西南交通大学电气工程学院);
【基金】：国家自然科学基金资助项目(51677156)~~
【分类号】：TM461
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