The Research of Flywheel Solar Energy Storage System Based on Peak Power and Point Tracking

Chaotao LIU1, Qing XIA2

Electrical and Vehicle institute of Chongqing Jiaotong University,ChongQing,400074

Abstract: Aimed at various factors of problem about the output power of photovoltaic cells will be influenced by environmental temperature and solar radiation intensity, studied on the law of power supply of photovoltaic cells ,the principle of flywheel energy storage system and the characteristics of motor operation, presented a control system of MPPT model based on peak power and point tracking, combining with motor speed regulation MPPT’s control algorithm adopt incremental conductance method in direct control method based on data. It makes the photovoltaic cells always work on the point of peak power, which formed the dynamic control achieve the peak power point tracking, and built the simulation mode of MPPT to analyse simulation in the environmental of Matlab ｏｒ Smulinks. Research results show that the system can change the work point of photovoltaic cells according to environmental temperature, and make it work on the peak power point which will improve conversion efficiency of photovoltaic cells. It is proved to be feasible and practical.

Keywords: Photovoltaic cells; MPPT; Flywheel energy storage; Conductance increment