摘要
在研究优化的全网谐波抑制方法时,非线性负荷建模是影响精度和效率的关键.文章针对三相阻感负载整流电路的原理进行分析,并采用具有高精度的谐波耦合导纳矩阵模型算法进行建模,从而准确地预测不同负载参数下,其各次谐波耦合程度的变化规律,为研究非线性负载谐波外特性提供了一种解决方案.文章对所提谐波耦合导纳矩阵的建模方法,进行了仿真和实验验证,仿真数据及实验结果均验证了该方法对晶闸管三相半控整流电路谐波外特性拟合的准确性.
Nonlinear load modeling is the key to affect the accuracy and efficiency in the study of the optimal harmonic suppression method of the whole network.In this paper,the principle of three-phase resistive load rectifi er circuit is analyzed,and the harmonic coupling admittance matrix model algorithm with high accuracy is used to model,so as to accurately predict the change rule of the degree of harmonic coupling under different load parameters,which provides a solution for the study of the non-linear load harmonic external characteristics.Finally,the simulation and experimental verifi cation of the proposed modeling method of harmonic coupling admittance matrix are carried out.The simulation data and experimental results verify the accuracy of the method for fi tting the harmonic external characteristics of three-phase half controlled thyristor rectifi er circuit.
作者
陈宏军
段文辉
王克谦
王鹏
魏继承
Chen Hong-jun;Duan Wen-hui;Wang Ke-qian;Wang Peng;Wei Ji-cheng
出处
《电力系统装备》
2020年第13期37-38,167,共3页
Electric Power System Equipment
关键词
耦合导纳矩阵
非线性负载
三相全桥晶闸管整流电路
电能质量优化
coupled admittance matrix
nonlinear load
three-phase full bridge thyristor rectifi er circuit
power quality optimization
