控制器硬件在环混合仿真系统延时及补偿方法  

Time-delay and compensation for CHIL simulation system

作　　者：尹晨旭[1] 孙建军[1] 刘邦[1] 刘欣[1] 皮一晨 查晓明[1] 

机构地区：[1]武汉大学电气工程学院,湖北武汉430072

出　　处：《电力自动化设备》2016年第9期151-155,共5页Electric Power Automation Equipment

基　　金：国家自然科学基金资助项目(51277137)~~

摘　　要：基于实时数字仿真器(RTDS)建立了并网逆变器的控制器硬件在环混合仿真系统。分析系统延时产生的原因及组成,针对延时对混合仿真系统稳定性、仿真精度及带宽的影响进行建模分析,并提出一种基于改进离散傅里叶变换算法的延时补偿方法,可以有效地补偿延时影响,以提高系统的稳定性及仿真精度。理论分析及实验结果证明了所提方法的有效性。A CHIL（Controller Hardware-In-the-Loop） simulation system based on RTDS（Real-Time Digital Simulator） is established for the grid-connected inverter. The cause of system time-delay and its composition are studied and the effect of time-delay on the simulation system in its stability,precision and bandwidth is analyzed. The improved discrete Fourior transform algorithm is proposed to compensate the time-delay for improving the system stability and simulation accuracy. Theoretical analysis and experimental result prove the effectiveness of the proposed method.

关 键 词：控制器硬件在环 仿真 延时 并网逆变器 离散傅里叶变换 补偿 

分 类 号：TM464[电气工程—电器] TP31[自动化与计算机技术—计算机软件与理论]