摘要
电子负载的负载模拟变换器(LSC)采用三相PWM变换器(VSR)作为基本结构,其电流跟踪性能作为功能实现的基础与电感参数的选取有关。基于复平面上VSR的数学模型,建立LSC的电流跟踪性能与系统参数之间的联系,对满足动态和稳态条件的电感限值进行分析。借助空间矢量可以综合考虑三相开关状态的影响并反映系统的实际性能,所提出的方法可以用于LSC电流跟踪性能的评价和参数的设计,最后通过仿真和实验验证了该方法的正确性。
The load simulation converter(LSC)of the electronic load takes three⁃phase PWM converter(VSR)as basic structure and its current tracking performance,as the base of function achievement is related to the selection of inductance parameters.The relationship between current tracking performance of LSC and system parameters is established based on the mathematical model of VSR in complex space for the analysis of inductance limit at dynamic and steady state conditions.With the help of space vector,the influence of 3⁃phase switching state can be comprehensively considered and the performance of the system can be reflected.The proposed method can be used for the evaluation of LSC current tracking performance and the design of parameters.Finally,the correctness of the method is verified by simulation and experiment.
作者
刘威
朱长青
谷志锋
LIU Wei;ZHU Changqing;GU Zhifeng(Army Engineering University,Shijiazhuang 050003,China;Shijiazhuang Tiedao University,Shijiazhuang 050043,China)
出处
《电力电容器与无功补偿》
北大核心
2020年第6期150-155,共6页
Power Capacitor & Reactive Power Compensation
基金
国家自然基金项目(51407196)。
关键词
电子负载
负载模拟变换器
三相PWM变换器
电流跟踪性能
电感参数选取
electronic load
load simulation converter
three⁃phase PWM converter
current tracking perfor⁃mance
inductance selection
