Content area
Abstract
With the continuous development of new energy power generation and smart grid, Power Electronic Transformer (PET) has a good prospect for development because of its remarkable advantages. Based on the topology of AC/DC/AC, the modulation strategy with dual-PWM (Pulse Width Modulation) is adopted to control the operation of power electronic transformers in this paper. The PET structure consists of three units: importation portion, isolation portion and output portion. Model building and analyzing both at the input and output terminals are achieved step by step. And the simulation of the whole PET system with dual-PWM is accomplished with MATLAB/ Simulink. The simulation results show the control system stability and output voltage regulation precision are improved with feed-forward voltage decoupling vector control system. The correctness and effectiveness of the control strategy are demonstrated through the simulation. PETs play an important role in enhancing power supply reliability for Power Grid and promoting the new energy power generation development.
Details
; Jiu-yang, Mu 1 ; Guan-bao, Zhang 1 ; Song-hai, Zhou 3 1 Xuzhou University of Technology, School of Electrical and Control Engineering, Xuzhou, China (GRID:grid.464484.e) (ISNI:0000 0001 0077 475X)
2 Xuzhou University of Technology, Jiangsu Province Key Laboratory of Intelligent Industry Control Technology, Xuzhou, China (GRID:grid.464484.e) (ISNI:0000 0001 0077 475X)
3 Jiangsu Zongshen Automobile Industry Limited Company, Scientific Research Management Department, Xuzhou, China (GRID:grid.464484.e)