基于全通滤波器的比例复数积分控制分析  

The analysis of proportional complex integral control based on allpass filter

作　　者：黎凡森 曹太强[1,2] 陈显东[1] 夏昱成 林玉婷[1] 

机构地区：[1]西华大学电气与电子信息学院,四川成都610039 [2]流体及动力机械教育部重点实验室(西华大学),四川成都610039 [3]电子科技大学格拉斯哥学院,四川成都611731

出　　处：《电子技术应用》2017年第3期127-131,共5页Application of Electronic Technique

基　　金：西华大学基金项目(ycjj2016168;2015RZ0030)流体及动力机械教育部重点实验室研究基金(西华大学);攀枝花市项目(2014CY-S-1-2);攀枝花学院项目(2014YB11);攀枝花市科技计划项目(2015 CY-C-5);四川省高校重点实验室项目(2013TYNZ-02/TYN2015-09);四川省电力电子节能技术与装备重点实验室(szjj2015-066)

摘　　要：传统比例积分控制单相并网逆变器存在稳态幅值和相位误差问题,同时谐波成分较大。基于此,采用具有零稳态误差和低谐波注入特点的比例复数积分(PCI)控制方法,复数环节通过全通滤波器实现,在单相并网逆变器系统中,无需构造虚拟三相坐标系或者dq坐标系,简化了控制系统结构。用Simulink对相同条件下的PI和PCI控制进行了仿真分析,PI控制的单相逆变器输出电流THD值为0.83%,而PCI控制的THD值为0.46%,若再加入多重PCI控制,可降至0.25%。仿真结果验证了PCI控制下的单相并网逆变器具有良好的稳态性能以及对并网电流谐波的抑制作用。The traditional proportional integral control single-phase grid connected inverter has the problem of steady-state ampli- tude and phase error, and the harmonic component is larger. Based on this, the injection characteristics of proportional complex in- tegral（PCI） control method with zero steady-state error and low harmonic, complex link is realized by all pass filter, in the single- phase grid connected inverter system, no need of constructing virtual three-phase coordinate and dq coordinate system, which sim- plifies the structure of control system. With Simulink under the same conditions of PI and PCI control simulation analysis, the PI control of single-phase inverter output current thd value is 0.83%, and PCI control thd value is 0.46%, if＂ we add multiple PCI control can be reduced to 0.25%. Therefore, the simulation results show that the single-phase grid connected inverter with PCI control has good steady-state performance and the suppression of the grid connected current harmonics.

关 键 词：单相 比例复数积分控制 全通滤波器 零稳态误差 谐波抑制 

分 类 号：TM71[电气工程—电力系统及自动化]