Study on Improved DC Bus Series-Connection of Microconverter System
The research on improved series-connection DC bus of microconverter system is explained in this paper.The disturbance observer is used for maximum power point tracking in each individual microconverter.And the Z-source boost converter topology is used in the paper,the overall output efficiency of the system is improved effectively.In this paper,the algorithm of the series-connection microconverter is improved.First of all,the ripple voltage compensation link is joined to reduce the harmonics of DC bus.Next,the PI control and the compensation of repetitive controller for quasi PR control technology are,respectively,used for voltage outer loop and current loop.Both the frequency gain of the system can be improved,and the repetitive distortion of the system can be eliminated,and the accuracy is improved.Finally,Matlab/Simulink software is used for building a simulation model in the system,and the relevant simulation is progressed,the results indicate that the improved control algorithm can be used to achieve good control effect.
DC bus Series-connection Z-source Microconverter The compensation of quasi PR control of repetitive controller
Hong Li Jun Wang Zhang Sun Ming Li Chaorun Feng
School of Electrical and Information Engineering,Xihua University,No.999 Jinzhou Road,Chengdu,Sichuan,China
国际会议
The 2015 Chinese Intelligent Automation Conference(2015中国智能自动化会议)
福州
英文
571-579
2015-05-08（万方平台首次上网日期，不代表论文的发表时间）