Research On Power Control System For Off Grid Wind Turbine Generator Based On ARM

In wind power generation system,the biggest problem comes from wind and load are irregular change with time,this uncertainty is difficult to control the power,to determine the maximum output power of the wind turbine,the system efficiency is not high.It can be seen that power control is the main research direction in the field of wind power generation,which has important social significance and practical value.In this paper,a variable step size disturbance power control system is designed,which can track the maximum output power with the random variation of wind power and load.The system controller,through the regulation of output voltage waveform duty cycle to change the converter,then change the load characteristics,let the wind speed maintained at the optimal tip speed ratio,maximum wind energy absorption and maximum power output of the wind speeds.This paper first introduces the development of the basic situation of the world wind power generation and related technologies,types,structure and composition of the variety of wind power generation system and the work principle;secondly,put forward the relationship model of wind turbine power output and wind speed changes,improved variable step disturbance power control strategy and algorithm are given the way of realization,and compared with other power control strategy;then,the design and debugging of hardware circuit,determine the hardware part selection type generator,rectifier,battery and controller and parameters,and gives the specific components of the model,the software part is the main program and subprogram flow chart and protection algorithm;finally,the establishment of a wind power generation system based on simulation software Power control simulation model,and two experiments were carried out for the simulation model.The simulation results show that the design can improve the efficiency and reliability of the system,and has important practical significance.