| 电力机车谐波与无功功率仿真分析 |
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| 引用本文： | 关巧莉,孙健,王宝安. 电力机车谐波与无功功率仿真分析[J]. 江苏电机工程, 2012, 31(1): 49-51,55 |
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| 作者姓名： | 关巧莉 孙健 王宝安 |
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| 作者单位： | 1. 东南大学电气工程学院,江苏南京,210096
2. 江苏省电力公司电力科学研究院,江苏南京,211103 |
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| 摘 要： | 提高非线性系统无功功率计量的准确性是提高电力系统电能质量管理和安全运行的需要。介绍了电力机车的系统结构和功能,在Matlab中建立仿真模型,分析电力机车的电流和电压谐波含量。通过几种典型的无功功率测量算法测量电力机车的无功功率,仿真结果表明Hilbert算法和傅氏算法的测量结果相对误差较小,无功功率计量的准确性较高,而均方根算法的测量误差较大。
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| 关 键 词： | 谐波分析 Matlab 电力机车 无功功率仿真 |
Harmonics Analysis and Reactive Power Simulation Analysis of Electric Locomotives |
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| GUAN Qiao-li , SUN Jian , WANG Bao-an. Harmonics Analysis and Reactive Power Simulation Analysis of Electric Locomotives[J]. Jiangsu Electrical Engineering, 2012, 31(1): 49-51,55 |
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| Authors: | GUAN Qiao-li SUN Jian WANG Bao-an |
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| Affiliation: | 1.School of Electrical Engineering,Southeast University,Nanjing 210096,China; 2.Jiangsu Electric Power Company Research Institute,Nanjing 211103,China) |
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| Abstract: | Improving the accuracy of measurement of nonlinear systems＇ reactive power can meet the requirements of improving power quality management and safe operation.System structure and function of electric locomotive is introduced in this paper.Simulation model is built in Matlab to analyze its current and voltage harmonic content.The reactive power of electric locomotives is measured by several typical measurement algorithms.The simulation results show that the relative error is small by Hilbert algorithm and Fourier algorithm while measurement of reactive power is accurate,and measurement error of RMS algorithm exist big error. |
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| Keywords: | harmonics analysis Matlab electric locomotives reactive power simulation |
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