HIMA 993201813 PID控制器通常使用默认调整
调谐控制回路是将其控制参数(比例带/增益、积分增益/复位、微分增益/速率)调整到所需控制响应的最佳值。稳定性(没有无界振荡)是一个基本要求,但除此之外,不同的系统有不同的行为,不同的应用有不同的要求,并且要求可能相互冲突。
尽管只有三个参数,并且原则上很容易描述,但PID调节是一个困难的问题,因为它必须满足PID控制的局限性。因此,有各种环路调谐方法,更复杂的技术是专利的主题;本节描述了一些传统的手动循环调音方法。
设计和调整PID控制器似乎在概念上是直观的,但在实践中可能很难,如果要实现多个(通常是相互冲突的)目标,如短瞬态和高稳定性。PID控制器通常使用默认调整提供可接受的控制,但性能通常可以通过仔细调整来提高,如果调整不好,性能可能是不可接受的。通常,初始设计需要通过计算机模拟反复调整,直到闭环系统按照预期执行或妥协。
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