A Voltage Adaptive Dynamic Harmonic Model of Nonlinear Home Appliances
A Voltage Adaptive Dynamic Harmonic Model of Nonlinear Home Appliances
复制标题
非线性家电电压自适应动态谐波模型
DOI：
10.1109/tie.2019.2921261
复制
发表时间：
2020-05-01
影响因子：
7.7
通讯作者：
Li, Shurong
中科院分区：
文献类型：
--
作者：
Sun, Yuanyuan;Xie, Xiangmin;Li, Shurong
非线性电力电子器件在住宅负荷中的广泛应用造成了严重的谐波畸变。谐波源建模是估计谐波污染的前提，具有十分重要的意义。本文提出了一种针对非线性家电的动态谐波耦合矩阵模型。该模型对负载电源电压条件具有较强的适应性；因此，本文提出的HCMM模型可以很好地表征非线性家电的动态谐波产生特性。此外，HCMM的推导过程是基于测量的，与负载等效电路无关，这使得该方法最适用于电路拓扑未知的非线性家电。采用广义线性复偏最小二乘法对HCMM进行估计，具有速度快、鲁棒性好等优点。本文还提出了一种建立多状态家电产品HCMM的方法。实验室实验验证了所提出方法的准确性和有效性。在此基础上，对多重非线性住宅荷载引起的总谐波进行了分析。
The widespread application of nonlinear power electronic devices in residential loads has resulted in significant harmonic distortions. Harmonic source modeling is of great importance since it is a prerequisite to estimate the harmonic pollution. In this paper, a dynamic harmonic coupled matrix model (HCMM) is proposed for the nonlinear home appliances. This model is adaptive to the load supply voltage conditions; therefore, the dynamic harmonic generating characteristics of nonlinear home appliances can be demonstrated by the proposed HCMM. Moreover, the HCMM derivation process is based on measurement, independent of the load equivalent circuit, which makes the proposed method most suitable for nonlinear home appliances with unknown circuit topologies. The widely linear complex partial least squares method, which has a fast speed and high robustness, is used to estimate the HCMM. A procedure to establish the HCMM for multistate home appliances is also proposed in this paper. Lab experiments were performed to verify the accuracy and validity of the proposed methodology. The aggregate harmonics caused by multiple nonlinear residential loads have been analyzed based on the proposed HCMM.