基于最小二乘支持向量机的谐波源建模  

Harmonic Source Modeling Based on Least Squares Support Vector Machine

作　　者：李彬[1] 吴萍 刘小龙 郑连清 

机构地区：[1]重庆市电力公司江北供电局,重庆401147 [2]重庆总公司大学电气工程学院,重庆400044 [3]中国海洋石油深圳分公司,广东深圳518000

出　　处：《低压电器》2010年第8期58-62,共5页Low Voltage Apparatus

基　　金：重庆市科委自然科学基金计划资助项目(2006BB2218)

摘　　要：综述了现有的各种谐波源模型,提出一种基于最小二乘支持向量机的谐波源建模新方法,以供电端基波电压和负荷特征参数作为输入、各次谐波电流的幅值和相角作为输出进行训练,建立模型。算例计算表明,模型输出谐波电流与实际仿真结果基本一致,使用上述方法建立模型速度快、精度高,是一种有效的谐波源建模方法。An overview of harmonic source modeling in power system was presented and a new method of harmonic source modeling based on least squares support vector machine （LS-SVM） was proposed. In the model,taking fundamental wave voltage of supply side and load characteristic parameters as the input,amplitudes and phases of harmonic currents as the output,the nonlinearity between them was established by LS-SVM. The numerical results showed that the obtained harmonic currents by the method were basically in accordance with the simulation results and the proposed method had the characteristics of short training time and high precision,which was an effective technique for harmonic source modeling.

关 键 词：电力系统 谐波源 谐波分析 

分 类 号：TM761.12[电气工程—电力系统及自动化]