Research On Power Supply Of Magnetorheological Damper Based On Photovoltaic Power Generation System

In order to reduce the influence of the gale on the building structure,can be installed on the magneto rheological fluid damper,in practical application,need to install some of magneto rheological fluid damper structures is not easy to get away from the power grid or power of off grid power supply to provide power to the magneto rheological fluid damper.Therefore,it is of practical significance to study the magneto rheological fluid damper power supply based on photovoltaic power generation system.This paper is based on the switching power supply design theory,the use of solar photovoltaic battery as power supply,according to the output characteristics,this paper proposes two level Buck power supply scheme of photovoltaic power generation power system based on magneto rheological damper,the various components of the main circuit parameters were calculated.In order to ensure the stable operation of power supply system from the network,the need to coordinate the relationship of energy flow between the solar photovoltaic battery,storage battery,magneto rheological fluid damper,the proposed energy management control strategy for power supply system,in the system with load at the beginning of the first level Buck using perturbation and observation method based on variable step,in order to achieve the maximum power output of solar photovoltaic cells.Accelerate the speed of battery charging;battery charging in the late,the first level Buck with constant voltage charging control,continue to charge the battery.The second stage Buck adopts the current single closed loop control strategy,which can quickly and accurately output the current required by the load.By detecting the battery terminal voltage and coordinating the relationship between the two levels of Buck,the power system is in the best state.To verify the energy management control strategy,simulation model of power system by using Matlab software.The simulation results show that the power system can according to different working conditions of mode switching,magnetorheological damper to provide current.In order to verify the correctness and feasibility of the control strategy of power supply scheme,power system design makes a prototype,and experimental research,the results show that the current power supply system based on magnetorheological damper needs accurate output of 0-2A continuously adjustable,meet the design requirements.