基于参数特征提取的微电网动态无功谐波综合防治装置优化配置方法  

Optimal configuration method of micro-grid dynamic reactive power harmonic comprehensive prevention device based on parameter feature extraction

作　　者：蒋晨达[1] 李津[1] JIANG Chenda;LI Jin(Department of Electric Power Engineering,Fujian College of Water Conservancy and Eecltric Power,Yongan 366000,China)

机构地区：[1]福建水利电力职业技术学院电力工程系,福建永安366000

出　　处：《黑龙江工程学院学报》2022年第3期30-34,39,共6页Journal of Heilongjiang Institute of Technology

基　　金：福建水利电力职业技术学院校级课题(YJKJ2002C)。

摘　　要：由于电流波形与正弦波相差较小,导致微电网动态无功谐波畸变率较大,对此,基于参数特征提取提出了一种新的微电网动态无功谐波综合防治装置优化配置方法。建立注入式混合型有源滤波器拓扑结构,通过晶闸管相控整流电路,确定各节点谐波电流基波有效电压值、总目标函数,建立谐波电压矩阵,得到与电网整体电压相匹配的的电网直流侧无功功率补偿,采取针对微电网范围内注入谐波的抑制控制措施,对动态多目标同时进行有效约束。分析配电网的电能质量、电能功率、电压、电流数据,实现优化配置。实验结果表明,基于参数特征提取的微电网动态无功谐波综合防治装置优化配置方法能够很好地改善电流波形,改善结果与正弦波相近,有效缩小畸变率。Due to the small difference between the current waveform and the sine wave,the dynamic reactive harmonic distortion rate of the microgrid is large.Therefore,based on the parameter feature extraction,a new optimal configuration method for the dynamic reactive harmonic integrated prevention and control device of the microgrid is proposed.The reactive power is compensated by the thyristor topology.Through the thyristor phase controlled rectifier circuit,the fundamental effective voltage value wave and total objective function of each node are determined.The harmonic voltage matrix is established to obtain the reactive power compensation at the DC side of the power grid that matches the overall voltage of the power grid.The control measures for harmonic injection in the micro grid are started to effectively constrain the dynamic multi-objective at the same time.Analyze the data of power quality,power,voltage and current of distribution network to realize optimal configuration.The experimental results show that the optimal configuration method of micro grid dynamic reactive harmonic integrated prevention device based on parameter feature extraction can improve the current waveform,the improvement result is similar to that of sine wave,and effectively reduce the distortion rate.

关 键 词：参数特征提取 微电网 动态无功谐波 综合防治 装置优化 配置方法 

分 类 号：TM727[电气工程—电力系统及自动化]