三相电压型SVPWM整流器离散域控制模型的构建  

Discrete Control Modeling for Three-phase Voltage Source SVPWM Rectifier

作　　者：王万宝[1] 付志红[1] 苏向丰[1] 杨臻[1] 

机构地区：[1]重庆大学输配电装备及系统安全与新技术国家重点实验室,重庆400044

出　　处：《系统仿真学报》2010年第1期222-226,共5页Journal of System Simulation

基　　金：国家自然科学基金(50577071)

摘　　要：三相电压型SVPWM整流器功率因数高,实现能量的双向流动。分析了三相电压型整流器数学模型和前馈解耦控制策略,提出了矩阵形式的SVPWM算法,减少了计算量。基于加拿大Lyrtech公司的VHS-ADC高速数字信号处理系统,构建了离散域下空间电压矢量所在扇区判断模型、相关矢量作用时间判断模型、功率管切换时间计算模型和PWM调制模型,构成了SVPWM基本实时控制模型。对三相SVPWM整流器的离散域和连续域模型仿真,验证了离散域控制模型的正确性。Three-phase Voltage Source Rectifier （VSR） with high power factor can realize bidirectional flow of energy. The mathematical model of VSR and feed forward decoupling control technique were analyzed, the proposed SVPWM algorithm of matrix format can reduce amount of calculation. Basic SVPWM real-time controlling model was composed of four models including space sector determination model, acting time judgment model of correlation vector, calculation model of switch transit time and PWM model, which were constructed on the basis of high-speed signal processing system VHS-ADC of Lyrtech company in Canada. The validity of the proposed discrete domain control model was proved by the three-phase SVPWM rectifier simulation research in both discrete and continuous domain.

关 键 词：整流器 前馈解耦 SVPWM控制 VHS—ADC FPGA 

分 类 号：TM461[电气工程—电器]