异步化同步发电机定子磁场定向控制

论述了异步化同步发电机定子磁场定向控制的原理,给出了定子有功功率、无功功率和转子励磁电流的关系,构造了异步化同步发电机电流环和功率环的双闭环控制模型,讨论了定子磁场幅值位置的确定和转子物理量转换角的确定,研制了DSP转子励磁控制装置,进行了异步化同步发电机双闭环采用PID调节器的励磁控制试验研究,结果表明,在合适的PID控制参数下可以取得良好的解耦控制效果.

Stator flux oriented control of asynchronized synchronous generator

The theory of stator-flux-oriented control of the ASG is investigated. The relations between the active power, reactive power of ASG and rotor exciting currents are conducted. The model to control active power and reactive power of ASG by power loop and current loop are constructed. The methods to determine the stator flux and the angle of rotor variables transfer are discussed in detail. An alternating current excitation device based on the digital signal processor (DSP) is designed; and the active power and the reactive power of the generator independently control under PID controllers is achieved. The experimental results indicate that PID controllers can improve the dynamic performances of the generator if appropriate parameters are adopted.