中小型发电机励磁的斩波单周期控制

One-cycle Control of Excitation Chopping for Medium and Small-sized Generators

近年来,用于脉宽调制(PWM)的单周期控制,因结构紧凑、所用元器件少和具有快速性,已得到广泛重视和应用。文中探讨了单周期控制在中小型发电机励磁上应用的可能性,利用了d,q轴坐标下同步发电机Park方程,在励磁的单周期控制下,对发电机起励和端电压阶跃进行了Simulink仿真,证明是可行的。

Recently, one-cycle control （OCC） for PWM has received close attention and has been applied widely because of its advantages such as compactness, fewer devices used and high speed of response. The paper introduces the feasibility for OCC to be used for excitation of medium and small-sized generators. The Park differential equations of synchronous generator in d, q coordinates are used with excitation under one-cycle control of generator, in order to implement voltage building and voltage step change of no-load generator. All these are realized by simulation with MATLAB/Simulink. It is proved that excitation with OCC for generators is feasible.