Design, analysis an‎d simulation of photovoltaic microinverter with magnetically controlled inductive element

10/21/2025 12:00:00 AM

Magnetic control means controlling the magnetic flux of the core of inductive elements by external excitation to adjust its characteristics. With this method, current-controlled inductors can be achieved. This element can also be used in photovoltaic microinverters, which are methods for connecting photovoltaic systems to the low-power power grid. In this research, after fully introducing this element an‎d microinverter circuits, by adding a controlled inductive element to a specific topology of microinverters, the weaknesses of this circuit are improved an‎d its results are reported. Some of the positive changes of the new circuit compared to the previous circuit are a 78% reduction in input inductance, no need for variable frequency, no need for a wide duty cycle, an‎d a 60% reduction in voltage stress of the switches. These things lead to a reduction in the size, cost, an‎d losses of the input inductor, which is one of the most important sources of circuit losses, an‎d a reduction in the cost an‎d resistance of the converter switches.

فتوولتائيك , ميكرواينورتر , كنترل مغناطيسي , القاگر متغير , القاگر كنترل شونده

photovoltaic , microinverter , magnetic control , variable inductor , controlled inductor

Mostafa Shojaee

Mohsen Kalantar