利用泰勒展开式的光学电流互感器补偿方法和仿真研究  

Theory and Simulation for Optical Current Transformer Compensation via Taylor Expansion

作　　者：刘晔[1] 惠培智[1] 褚俊龙[1] 镡雄师[1] 

机构地区：[1]西安交通大学电气工程学院,西安710049

出　　处：《西安交通大学学报》2012年第8期22-26,32,共6页Journal of Xi'an Jiaotong University

摘　　要：提出了一种全新的补偿光学电流互感器线性双折射效应的方法,即通过泰勒展开式得到光学电流互感器输出波形中线性双折射效应与波形形状之间的关系.分析了线性双折射效应对输出波形的影响,论述了线性双折射效应的具体补偿方法,推导了基于泰勒展开式求解线性双折射效应的具体过程,并对该方法进行了验证.该方法避免了对线性双折射效应δ的复杂建模,利用数学计算直接求取δ的值,计算过程相对简单而且计算量小.仿真实验表明,该方法具有很强的精确性和实用性,通过先分析线性双折射效应而后产生对光学电流互感器补偿的方法,既提高了系统的长期稳定性,又保证了补偿的实时性.A novel method to compensate linear transformer is proposed. Analyzing the optical birefringence effect of the optical current current transformer model and the Taylor expansion, the relationship between the optical current transformer output waveform and linear hirefringence effect is obtained. The linear birefringence effect on the output waveform and the specific compensation for the linear birefringence effect are discussed. The feasible steps for solving linear birefringence effect via Taylor expansion are presented, where a simple mathematical calculation is chosen to directly derive the linear birefringence effect 8 without complicated procedure in modeling. The simulation shows long-term stability and real-time compensation of the improved system.

关 键 词：光学电流互感器 线性双折射 泰勒展开 补偿 

分 类 号：TP212[自动化与计算机技术—检测技术与自动化装置]