Design And Research Of Bidirectional DC/DC Converter Based On High Boost Ratio

Today,traditional fossil fuels-oil,coal,and natural gas-are burning at the speed of light,leading to high energy tensions in the world.Therefore,the full development and utilization of renewable green energy has become the first choice of human beings.However because of wind energy,solar energy,natural reasons and some irresistible factors,if we want to increase the proportion of such energy generation,it may cause some negative effects In order to solve this problem,we must focus on the distributed generation field In order to solve this problem,high voltage gain bidirectional DC/DC energy storage converters are used.Bi-directional DC-DC Converter is a bidirectional DC/DC converter.BDC)is the dual quadrant operation of DC/DC converter.It can realize the bidirectional transmission of energy.In this application,it can reasonably control the r atio of performance to price,so it is of great weight value.In this paper,firstly,by referring to domestic and foreign references,the topology of bidirectional DC/DC converters is compared and analyzed in detail,and the previous topological advantages and disadvantages are summarized,the existing topology is optimized,and the high-boost gain conversion topology is studied.The working mechanism is to adopt a staggered parallel connection technology for the low voltage side to reduce the inductor current ripple while reducing the current value flowing through the switch tube and the current stress;the threelevel technology is used on the high voltage side to reduce the voltage stress of the switch tube while reducing the Inductor current ripple,this article through the topology of the structure can achieve a nonlimiting duty cycle to achieve 10 times the boost.Targeting high power,high efficiency,and high performance,the DC/DC converter can achieve bidirectional flow of energy at high boost ratios and high power...