基于DSP的双通道励磁调节器

介绍了以高性能数字信号处理器（DSP）TMS320F2812芯片为控制核心的同步发电机双通道微机励磁调节器,实现了同步交流采样、数字移相触发、数字式电力系统稳定器（PSS）等功能。采用同步交流采样,对同步发电机的机端电压、定子电流进行准确测量;通过PID＋PSS的控制方法,得到精确的晶闸管触发脉冲,并抑制系统的低频率振荡,实现了晶闸管触发脉冲的形成和移相的完全数字化。实验结果表明,该双通道微机励磁调节器具有良好的性能,并具有硬件简单、可靠性高等特点。

Dnal Channel Excitation Regulator Based on DSP

Introduction was made to an dual channel excitation regulator for synchronous generators by using high performance digital signal processor(DSP) TMS320F2812 chip as the control center, realizing key excitation regulator functions such as synchronous AC sampling, digital shift phase trigger pulse, digital power system stabilizer(PSS). It expounded how to carry out synchronous AC sampling for exact voltage and current of generator's stator, how to get accurate trigger pulse for thyratron transistors and suppress the low fre-quency oscillation of the power system by using PID and PSS, and the formation and phase-shifting of trigger pulse for thyratron transis-tors achieving the digital method of trigger pulse. The test result indicates that the dual channel regulator has good performance, simple hardware and high reliability.