YB560103-BL
YB560103-BL
YB560103-BL
在工业控制中,PID控制(比例-积分-微分控制)得到了广泛的应用,这是因为PID控制具有以下优点:
1)不需要知道被控对象的数学模型。实际上大多数工业对象准确的数学模型是无法获得的,对于这一类系统,使用PID控制可以得到比较满意的效果。据日本统计,目前PID及变型PID 约占控制回路数的90%左右。
2)PID控制器具有典型的结构,程序设计简单,参数调整方便。
3)有较强的灵活性和适应性,根据被控对象的具体情况,可以采用各种PID控制的变种和改进的控制方式,如 PI、PD、带死区的PID、积分分离式PID、变速积分PID等。随着智能控制技术的发展,PID控制与模糊控制、神经网络控制等现代控制方法相结合,可以实现PID控制器的参数自整定,使PID控制器具有经久不衰的生命力。
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