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| 有源电力滤波器检测滞后补偿误差的分析与建模 | |
| 引用本文： | 王雪丹,姜建国,李伟.有源电力滤波器检测滞后补偿误差的分析与建模[J].中国矿业大学学报,2004,33(6):699-702. |
| 作者姓名： | 王雪丹 姜建国 李伟 |
| 作者单位： | 1. 黑龙江科技学院,自动化工程系,黑龙江,哈尔滨,150027;中国矿业大学,信息与电气工程学院,江苏,徐州,221008 2. 中国矿业大学,信息与电气工程学院,江苏,徐州,221008 3. 黑龙江科技学院,自动化工程系,黑龙江,哈尔滨,150027 |
| 基金项目： | 黑龙江省教育厅骨干教师项目(1052G039) |
| 摘 要： | 分析了DSP数字控制采集处理时间滞后对电力滤波器补偿的影响，论述了时问滞后对补偿结果造成的误差．中由单一失真频率入手，推导出补偿误差理论估计的数学模型，并将其扩展到多重失真频率，导出对确定负载、确定滞后时间的总理论补偿误差的计算公式．用这个公式可以分析由任何因素引起得时间滞后所造成的补偿误差．最后，通过实验对误差模型进行验证．由分析结果表明，时间滞后将在补偿中引起严重的误差；采样频率越低，电力滤波器产生的补偿误差就越大． |
| 关 键 词： | 补偿 滞后效应 数字信号处理 谐波 |
| 文章编号： | 1000-1964(2004)06-0699-04 |
| 修稿时间： | 2004年1月5日 |
Analyzing and Modeling of the Compensation Error of Measurement Delay in Active Power Filters |
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| WANG Xue-dan,JIANG Jian-guo,LI Wei.Analyzing and Modeling of the Compensation Error of Measurement Delay in Active Power Filters[J].Journal of China University of Mining & Technology,2004,33(6):699-702. | |
| Authors: | WANG Xue-dan JIANG Jian-guo LI Wei |
| Abstract: | The effect of time delay of the digital control and data acquisition on the power filter compensation based on Digital Signal Processor (DSP) is analyzed. Compensation error caused by time delay is discussed. The mathematical model of theoretical evaluation was proposed based on a single frequency distortion. This evaluation is expanded to handle multiple harmonic distortions to calculate the total theoretical compensation error for a specific load and time delay. This approach provides a method for calculating the error caused by any delay in compensation. Finally, the mathematical model is validated by experiments. The results show that a bigger compensation error is brought by time delay, and the lower the sample frequency is, the bigger the compensation error of power filter is. |
| Keywords: | compensation delay effect digital signal processing harmonics |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |