LLC谐振高压变压器模型参数测量  

LLC Resonant Transformer Distributed Parameters Abstraction

作　　者：张大伟[1] 

机构地区：[1]沈阳理工大学信息科学与工程学院,辽宁沈阳110159

出　　处：《沈阳理工大学学报》2012年第4期39-42,共4页Journal of Shenyang Ligong University

摘　　要：利用高压变压器的非理想化参数作为LLC谐振回路的部件提高电源的性能和可靠性。根据变压器等效电路模型,分析利用高压变压器的阻抗频率特性和增益频率特性(波特图)测量分布参数的方法,设计并实测高压变压器阻抗与增益频率特性,计算激磁电感、漏感、绕组电容、直流电阻和磁芯损失电阻等模型参数,进行SPICE仿真分析。仿真结果与实测结果基本相符,验证了该方法的有效性。Using transformer distributed parameters as component in LLC resonant tank could improve the performance and reliability of high voltage converter. It is essential to ex- tract high voltage transformer distributed parameters. Based on the equivalent circuit model of transformer, it is analyzed that the measuring method of transformer distributed parame- ters based on the Bode plot of impedance and gain frequency response. The frequency re- sponse of the designed high-voltage transformer is measured. It is computed the parameters include magnetizing inductance, leakage inductance, winding capacitor, DCR （ Directed Connected Resistance） and Core loss Resistor. The SPICE simulation upon computed result verifies the validity of the method.

关 键 词：串联谐振 变压器等效电路模型 高电压 谐振回路 LLC谐振变换 

分 类 号：TM835.4[电气工程—高电压与绝缘技术]