Study on Control Method of Variable Frequency Speed Regulation System
Aiming at the shortage of traditional control variable frequency speed control system,based on the AC frequency conversion system,introduces a new control method symmetric cosine control method,the control not only pays attention to the traditional control method the inherent sine,and at the same time as a result of its own control characteristics,and can be a good solution waveform symmetry.Taking into account the output waveform symmetry and degree of sine.The simulation experiment,the control way is both symmetry and sine output harmonic content,lesser also achieved good results.