功率因数的自动跟踪检测与补偿

The Automatic Track and Compensation of Power Factor

将89c51单片微机应用于电力系统功率因数自动控制，设计中巧妙地利用了差动式相敏放大器检测电路和充分合理地使用了89c51单片机片内RAM，使电路结构简单，抗干扰性强．

We have applied the 89c51 chip microprocessor to the power factor automatic con-trol of electric power system. We have used the differential phase sensitive amplifier cleverly, and used the RAM of the 89c51 chip microprocessor fully and reasonably. de the structure of the elec-tric route is simple, and stable to the interference.