基于虚拟现实技术的三电平逆变器低次谐波控制作业仿真  

Simulation of low-order harmonic control of three-level inverter based on virtual reality technology

作　　者：赵娜 刘自雄 张慧敏[1] 张林生[1] ZHAO Na;LIU Zixiong;ZHANG Huimin;ZHANG Linsheng(ChongQing College of Electronic Engineering,Chongqing 400000,China;Zte Co.Ltd,Shenzhen Guangdong 518000,China)

机构地区：[1]重庆电子工程职业学院,重庆400000 [2]中兴通讯股份有限公司,广东深圳518000

出　　处：《自动化与仪器仪表》2021年第1期55-58,共4页Automation & Instrumentation

基　　金：重庆市教育委员会科学技术研究计划危岩崩塌实时图像识别技术研究项目资助项目(No.KJQN201803104);重庆市教委科学技术研究项目:基于北斗卫星的建筑物滑坡体监测系统研发(No.KJQN201903106);重庆电子工程职业学院通信工程学院教改项目(No.201902008)。

摘　　要：为了提高三电平逆变器低次谐波输出的稳定性,提出构建基于虚拟现实技术的三电平逆变器低次谐波控制模型。采用模糊PID控制技术,设计三电平逆变器低次谐波输出稳定性控制电路,针对三电平逆变器单极性特点,构建三电平逆变器低次谐波振荡约束参数模型;采用输出功率稳态调节方法对三电平逆变器低次谐波转换和输出稳定性进行调节,构建三电平逆变器低次谐波控制对象辨识模型;在虚拟现实技术下,建立三电平逆变器低次谐波终端模型,获取三电平逆变器低次谐波输出阶跃响应,在此基础上,通过微分线性组合控制方法,控制三电平逆变器的输出,实现三电平逆变器低次谐波控制。仿真结果表明,采用所提方法进行三电平逆变器低次谐波控制的输出稳定性较好,输出功率增益较高。In order to improve the stability of low order harmonic output of three-level inverter,a control model of three-level inverter based on virtual reality technology is proposed.The fuzzy PID control technology is used to design the low order harmonic output stability control circuit of the three-level inverter.According to the unipolar characteristics of the three-level inverter,the low-order harmonic oscillation constraint parameter model of the three-level inverter is constructed.The output power steady-state regulation method is used to adjust the low-order harmonic conversion and output stability of the three-level inverter,and the low-order harmonic control of the three-level inverter is constructed in the virtual reality technology,the low order harmonic terminal model of three-level inverter is established to obtain the step response of the low-order harmonic output of the three-level inverter.On this basis,the output of the three-level inverter is controlled by the differential linear combination control method to realize the low-order harmonic control of the three-level inverter.The simulation results show that the output stability and the output power gain of the proposed method are good.

关 键 词：虚拟现实技术 三电平 逆变器 低次谐波 控制 

分 类 号：TP39[自动化与计算机技术—计算机应用技术]