| With the development of modern society,in the world electric power development process,the current photovoltaic power generation,wind power generation is the main role in national power generation technology innovation,according to the 19 report said: Adhere to the development of green clean energy,the establishment of clean energy priority development strategy.It is one of the key technologies to improve the conversion efficiency and structure flexibility of the power generation system to convert the lower battery voltage into the bus voltage which can be applied to the grid-connected inverter.This paper focuses on the following research: ?Based on the improvement of the voltage gain of the basic boost converter,the voltage gain of the converter can be improved by using the switching inductance unit,and the working mode of the converter circuit is analyzed,and the voltage gain expression is obtained.?This paper studies whether the application of magnetic integration technology can solve the problem of the increase of current ripple in low voltage side,analyzes the mathematical relationship between inductance current ripple and magnetic integrated coupling coefficient of the converter,and gives the design criterion of inductance coupling coefficient.? This paper studies the dynamic response of the converter and the voltage stress performance of the switch tube,compares it with the basic boost converter,and finally verifies the correctness of the theory by using Psim software to simulate and verify the PCB technology. |
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