Loss analysis of large reactor for power conditioning system considering harmonic components

Large reactor is widely used for voltage type PWM (Pulse width modulation) inverter applying power conditioning system. Loss need to be predicted to improve the efficiency of large reactor. In the paper, loss of each harmonic component is mathematically reflected during calculation of loss components because iron loss and copper loss which are loss components of reactor are difficult to apply FEM (Finite Elements Method) for large reactor design. Accurate result can be computed by applying optimum turns and air-gap length in case of identical inductance therefore loss can be reduced.