摘要
借助微机控制的交流调压不需要移相触发脉冲电路和D/A接口电路,晶闸管是在电源过零时刻触发导通,而在要关断时也在电源过零时刻关断,这种微机控制交流调压在负载电流较大时,易控制,而不会对电网产生冲击。
With the microcomputer controls,the alternating adjustment can be performed withoutthe phase-shift trigger pulse circuit and D/A interface circuit.The thyristors can be trig-gered and switched on when the power is over zero,and when it is switched off,the powershould also be over zero.With the microcomputer controls,its easy to monitor the aIternatingvoltage adjustment when the loaded current is much higher ,and no impact effect will be pro-duced upon the DOwer net.
出处
《太原重型机械学院学报》
1994年第2期164-169,共6页
Journal of Taiyuan Heavy Machinery Institute
关键词
PID
交流调压
微机控制
监测仪表
microcomputer
duty ratio
zero trigger
PID/alternating voltage adjustment