用于仿真的非线性消谐电阻模型建立  

Establishment of Model About Nonlinear Harmonic Elimination Resistance for Simulation

作　　者：董张卓[1] 白翰林 李晓娟 宋伟 DONG Zhang-zhuo;BAI Han-lin;LI Xiao-juan;SONG Wei(School of Electronic Engineering,Xi'an Shiyou University,Xi'an Shanxi 710065,China;China Coal xi'an Design Engineering co,LTD,Xi'an Shanxi 710054,China)

机构地区：[1]西安石油大学电子工程学院,陕西西安710065 [2]中煤西安设计工程有限责任公司,陕西西安710054

出　　处：《计算机仿真》2022年第3期91-95,共5页Computer Simulation

摘　　要：在配电网中,谐振回路中串入消谐电阻是抑制或消除谐振的有效措施。在仿真研究谐振过程时,需要消谐电阻的模型。为此提出了一种建立仿真用的消谐电阻模型的方法。方法依据测量的一组电压电流有效值、以及功率序列值,通过递推的方法得到消谐电阻的i-v特性。为了避免v-i特性过零点时的不连续引起仿真模型计算时的参数跃变,造成仿真错误,通过对v-i特性数据扩展、平移预处理,以此数据拟合得到i-v函数,用于消谐电阻的Simulink仿真模型的建立。用仿真验证了方法的正确性和模型的正确性。In the resonance circuit of a power distribution network,introducing a series harmonic elimination resistance is an effective measure to suppress or eliminate resonance.And the model of the harmonic elimination resistance is necessary for simulating and studying the resonance process.Aiming at this,a method to establish the model of the harmonic elimination resistance for simulation was proposed.Based on a measured set of effective voltage and current values together with the power sequence value,the method obtained the volt-ampere characteristic of the harmonic elimination resistance via recursion calculations.In the calculation of the simulation model,in order to avoid parameter step change and ensuing simulation error caused by discontinuity of the characteristic at the zero-point,the data of the characteristic were extended and shifted in pre-processing,and then fitted to obtain the volt-ampere characteristic function,and then the Simulink simulation model was established for the harmonic elimination resistance.Simulation results validated the correctness of the method and the model.

关 键 词：消谐电阻 递推计算 数据预处理 仿真模型 

分 类 号：TM743[电气工程—电力系统及自动化]