| 同步旋转坐标谐波检测法的数学建模及数字实现 |
| |
| 引用本文： | 童立青,钱照明,彭方正.同步旋转坐标谐波检测法的数学建模及数字实现[J].中国电机工程学报,2009,29(19):111-117. |
| |
| 作者姓名： | 童立青 钱照明 彭方正 |
| |
| 作者单位： | 浙江大学电气工程学院 |
| |
| 摘 要： | 对同步旋转坐标谐波检测法建立统一的正、负序数学模型，在此基础上对其进行定量研究和参数优化设计。针对同步旋转坐标谐波检测法数字实现中存在的采样延时与数字量化误差之间的矛盾，提出一种基于高采样频率的多级指数平均值低通滤波器，该数字低通滤波器能降低量化误差，提高谐波检测精度，算法简单，能实现同步旋转坐标(synchronous reference frame，SRF)谐波检测法的优化设计。仿真和实验都充分证实该文理论分析的正确性和所提出的数字低通滤波器的实用性。
|
| 关 键 词： | 同步旋转坐标谐波检测法 有源电力滤波器 正负序 量化误差 指数平均值数字低通滤波器 |
| 收稿时间： | 2008-05-04 |
| 修稿时间： | 2008-10-08 |
Synchronous Reference Frame Harmonic Detection Modeling and Digital Realization |
| |
| TONG Li-qing,QIAN Zhao-ming,PENG Fang-zheng.Synchronous Reference Frame Harmonic Detection Modeling and Digital Realization[J].Proceedings of the CSEE,2009,29(19):111-117. |
| |
| Authors: | TONG Li-qing QIAN Zhao-ming PENG Fang-zheng |
| |
| Affiliation: | College of Electrical Engineering, Zhejiang University |
| |
| Abstract: | A unified positive and negative sequence math model of the synchronous frame harmonic detection method is constructed in this paper. Its harmonic detection characteristic is analyzed and the parameter optimization of the low power filter is given. The contradiction between the sample settling time delay and the coefficient quantization error, when the synchronous frame harmonic detection method is realized in digital signal processor (DSP), is discussed in detail. A multi-cascade exponential mean digital low pass filter based on high sampling-rate is proposed to solve the problem. Simulation and experimental results verify the excellent performance of the presented method. |
| |
| Keywords: | synchronous reference frame harmonic detection method active power filter positive and negative sequence coefficient quantization error exponential mean digital low pass filter |
|
| 点击此处可从《中国电机工程学报》浏览原始摘要信息 |
|
点击此处可从《中国电机工程学报》下载全文 |
