The variable-frequency power is energy foundation of fast heat treatment of steel induction heating, the power frequency has important function on induction heating process, and it is most important technical basis for induction heating equipment choose.
High/low of power frequency shall be related with electrical efficiency, heat efficiency, heating speed and heating temperature uniformity indexes of heating process. Meanwhile, the power frequency choose refer to equipment investment cost and production cost too. So, the power frequency choose is a complicated job.
The electromagnetic conversion of induction heating system is complex process, the total efficiency of system is hard able to achieve. Normally way is use inductor efficiency as power frequency choose basis,so,the heating efficiency of max inductor is target basis of power frequency choose.