PEMFC-Boost系统滑模控制策略研究
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摘要
为实现对PEMFC-Boost变换器非线性行为的有效控制,改善系统输出性能,依据滑模控制基本原理,设计了PEMFCBoost变换器系统滑模控制电路。根据所设计的控制电路,在MATLAB软件中搭建了滑模控制仿真电路,将滑模控制仿真模型与PEMFC-Boost系统仿真相结合,形成了PEMFC-Boost变换器滑模控制仿真模型。最后,通过仿真对比分析了滑模控制与一般PI控制的控制效果,研究了系统电压扰动和负载扰动对滑模控制效果的影响。
In order to realize the effective control of the nonlinear behavior of PEMFC-Boost converter and improve the system output performance,based on the basic principle of sliding mode control,the sliding mode control circuit of PEMFC-Boost converter system is designed. According to the control circuit designed,the sliding mode control simulation circuit is built in MATLAB software. The sliding mode control simulation model is combined with PEMFC-Boost system simulation to form a sliding mode control simulation model of PEMFC-Boost converter. Finally,the control effect of sliding mode control and general PI control is analyzed by simulation,and the influence of system voltage disturbance and load disturbance on sliding mode control effect is studied.
In order to realize the effective control of the nonlinear behavior of PEMFC-Boost converter and improve the system output performance,based on the basic principle of sliding mode control,the sliding mode control circuit of PEMFC-Boost converter system is designed. According to the control circuit designed,the sliding mode control simulation circuit is built in MATLAB software. The sliding mode control simulation model is combined with PEMFC-Boost system simulation to form a sliding mode control simulation model of PEMFC-Boost converter. Finally,the control effect of sliding mode control and general PI control is analyzed by simulation,and the influence of system voltage disturbance and load disturbance on sliding mode control effect is studied.
引文
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[2]彭飞,赵元哲,陈维荣.基于质子交换膜燃料电池的交直流耦合SQ并网控制方法[J].电力系统自动化,2013,37(24):12-18.
[3]MAJUMDER R.A Hybrid microgrid with DC connectionat back to back converters[J].IEEE Transactions on Smart Grid,2014,5(1):251-259.
[4]Lu Xiaonan,GUERRERO J M,Sun Kai.An improved droop control method for DC microgrids based on low bandwidth communication with DC bus voltage restoration and enhanced current sharing accuracy[J].IEEE Transactions on Power Electronics,2014,29(4):1800-1812.
[5]余达太,马欣.一种用于改善燃料电池动态特性的模糊控制系统[J].电子技术应用,2009,35(2):68-70.
[6]宋英睿,詹跃东.质子交换膜燃料电池控制器的设计[J].微型机与应用,2010,29(21):100-102.
[7]孙文静.Buck型DC-DC变换器的滑模控制研究[D].北京:北京交通大学,2015.
[8]吴宇,皇甫宜耿,张琳,等.大扰动Buck-Boost变换器的鲁棒高阶滑模控制[J].中国电机工程学报,2015,38(7):1740-1748.
[9]周宇飞,丘水生.Boost变换器滑模控制方法及其实验研究[J].电力电子技术,2001,35(2):42-44.
[10]LEVANT A.Higher-order sliding modes differentiation and output feedback control[J].International Journal of Control,2003,76(9-10):924-941.
[11]LEVANT A.Homogeneity approach to high-order sliding mode design[J].Automatica,2005,41(5):823-830.
[12]HARMOUCHE M,LAGHROUCHE S,CHITOUR Y.Robust and adaptive Higher Order Sliding mode controllers[C].2012 IEEE 51st Annual Conference on IEEE Decision and Control(CDC),Malli,Hawaii,2012:6436-6441.
[13]涂文娟,丘东元,张波.DC/DC谐振开关电容变换器潜电路发生的一般规律分析[J].电工技术学报,2007,22(12):98-103.
[14]何金梅,郑雪梅,王卫,等.Boost变换器混沌现象的非奇异终端滑模控制方法[J].电工技术学报,2013,28(4):104-108.