CAJ | 학술논문

在深入了解发电机组运行工况的基础上,设计并研制出一种基于单片机为核心的,用于自动调节发电机有功功率的负荷保持器.应用Philips 80C552单片机内部自带的A/D模块,检测出与发电机有功功率相对应的电压,再与发电厂给定的有功功率相对应的电压值作比较,从而得知用来调节汽轮机汽门的伺服电机的转向和转动时间,达到给定的有功功率.利用了单片机技术、电力电子技术、模糊控制和脉宽调制技术,使发电机组实际输出的有功功率与设定值之间的误差维持在规定的范围之内.同时通过串行通信接口与主控制室的计算机连接,实现真正意义的无人职守.
재심입료해발전궤조운행공황적기출상,설계병연제출일충기우단편궤위핵심적,용우자동조절발전궤유공공솔적부하보지기.응용Philips 80C552단편궤내부자대적A/D모괴,검측출여발전궤유공공솔상대응적전압,재여발전엄급정적유공공솔상대응적전압치작비교,종이득지용래조절기륜궤기문적사복전궤적전향화전동시간,체도급정적유공공솔.이용료단편궤기술、전력전자기술、모호공제화맥관조제기술,사발전궤조실제수출적유공공솔여설정치지간적오차유지재규정적범위지내.동시통과천행통신접구여주공제실적계산궤련접,실현진정의의적무인직수.
Based on the actual operating conditions of generator,a load retainer with singlechip as its core is developed for the autoregulation of generator active power.The voltage corresponding to the measured active power is detected by the A/D converter of Philips 80C552 and the difference between it and the voltage corresponding to the reference active power is used to control the rotating direction and duration of motor,which drives the steam valve to control the active power output.The computer technology,power electronic technology,fussy control technology and pulse width modulation technology are applied.It communicates with the master computer via serial communication interface to realize remote supervision.