中频逆变器2自由度稳健控制器设计
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摘要
在建立单相中频逆变器数学模型的基础上,把负载和输出变压器漏感参数作为不确定因素,利用稳健控制中的结构奇异值分析和综合方法设计了一个2自由度稳健控制器.通过软件对该方法进行了仿真验证,并在20kW试验样机上进行相关实验.结果表明:所设计的2自由度稳健控制器能够使中频逆变器有很好的动静态性能和稳健性能,稳态电压稳定在114.5~115.5V,动态恢复时间在10ms以内.
On the basis of the single-phase medium frequency inverter mathematical model,parameters of the load and the output transformer leakage inductance are acted as uncertain factors,a two-degree-of-freedom robust controller is designed based on structured singular value analysis and synthesis methods.The method is simulated and related experiments are test with the 20 kW prototype.Simulation and experimental results show that the two-degree-of-freedom robust controller can make medium frequency inverter have good dynamic and static performance,have good robustness,with the steady state voltage stability within114.5~115.5V,and dynamic recovery time in 10 ms.
On the basis of the single-phase medium frequency inverter mathematical model,parameters of the load and the output transformer leakage inductance are acted as uncertain factors,a two-degree-of-freedom robust controller is designed based on structured singular value analysis and synthesis methods.The method is simulated and related experiments are test with the 20 kW prototype.Simulation and experimental results show that the two-degree-of-freedom robust controller can make medium frequency inverter have good dynamic and static performance,have good robustness,with the steady state voltage stability within114.5~115.5V,and dynamic recovery time in 10 ms.
引文
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[3]刁元均,邹滨.基于复合控制的中频逆变电源研究流控制[J].电力自动化设备,2007,27(7):66-68.DIAO Yuanjun,ZOU Bin.Hybrid control of medium frequency inverter[J].Electric Power Automation Equipment.2007,27(7):66-68.
[4]张力军,程鹏.系统的μ分析与μ综合的变尺度优化方法[J].北京航空航天大学学报,1999,25(2):138-141.ZHANG Lijun,CHENG Peng.μ-analysis and DFP optimization method ofμ-synthesis for flight control System[J].Journal of Beijing University of Aeronautics and Astronautics,1999,25(2):138-141.
[5]MARYAM B,HOUSHANG K.μ-synthesis control for an islanded microgrid[J].IEEE Transactions on Industrial Electronics,2011,34(5):1-6.
[6]YUN W L,MAHINDA V,POH C L.Robust control scheme for a microgrid with PFC capacitor connected[J].IEEE Transactions on Industrial Electronics,2007,43(5):1172-1182.
[7]ALIREZA K,YASSER A I.Robust single-loop direct current control of LCL-filtered converter-based DG units in grid-connected and autonomous microgrid modes[J].IEEE Transactions on Industrial Electronics,2014:29(10):5605-5619.
[8]PENG L,YU W L.The realization of flexible photovoltaic power grid connectionμ-synthesis robust control in Microgrid[J].IEEE Transactions on Industrial Electronics,2014,28(3):323-330.
[9]ZMOOD D,HOLMES D G.Stationary frame current regulation of PWM inverters with zero steady-state error[J].IEEE Transactions on Power Electronics,2003,18(5):814-822.
[10]王广雄,袁欣.H∞设计:两块还是三块问题[J].电机与控制学报,2001,2(5):81-84.WANG Guangxiong,YUAN Xin.H∞control:2-block or 3-block problems[J].Electric Machines and Control,2001,2(5):81-84.
[11]刘康志,姚郁.线性稳健控制[M].北京:科学出版社,2013.
[12]HASSAN B,MOHAMMAD R F,SIRWAN A.Robust frequency control in an islanded microgrid:H∞andμ-synthesis approaches[J].IEEE Transactions on Power Electronics,2015,18(5):1-12.
[13]马伟明,张磊,孟进.独立电力系统及其电力电子装置的电磁兼容[M].北京:科学出版社,2007.
[14]刘宏智.运动伺服系统二自由度稳健控制器设计[D].哈尔滨:哈尔滨工业大学控制科学与工程系,2007.
[15]张银锋.基于二自由度有功/频率控制的中频逆变器并联控制系统仿真研究[J].电器与能效管理技术,2015,14(2):42-48.ZHANG Yinfeng.Research on parallel operation of medium frequency inverter based on two degree of freedom active power/frequency control[J].Electric&Energy Management Technology,2015,14(2):42-48.
[16]韩崇昭,张爱民,刘晓风.多变量反馈控制分析与设计[M].西安:西安交通大学出版社,2011.
[17]孙忠旭.基于μ综合的BTT飞行器稳健控制方法研究[D].哈尔滨:哈尔滨工业大学控制与仿真中心,2012.