【摘要】 介绍了采用51单片机控制的谐波励磁发电机数字电压调节器,它运用先进的PWM和高频开关管实现对发电机输出端电压的控制.该调节器采用了变参数PID控制方法和浮点数运算使得系统的控制性能更佳.为了使DAVR能适用于各种型号的谐波励磁发电机,系统PID参数还可以通过键盘来在线调节,并存入E2PROM中.实际运行结果表明本调节器具有硬件电路简单、调节特性好、通用性强、性价比高等特点.更多还原

【Abstract】 A new kind of digital automatic voltage regulator (DAVR) of harmonic wave excited generator controlled by 51 single chip computer was presented.The advanced control technology of PWM and MOSFET was used to control the output voltage of the generator.The PID calculating method whose parameters can be (alterable) and the arithmetic(al) operation with floating point numbers make the system good performance.In (order) to make the DAVR applicable to different harmonic wave excited generator,the parameters of PID which is modified with the keyboard can be stored in the E~2PROM,and would not be lost when the power is off.The (result) of the experiment shows the device has many advantages such as simple hardware structure,high (reliability) and high ratios of qualities and functions compared with price.更多还原