摘要
针对大惯性大滞后系统,探讨用闭环响应曲线进行控制参数整定的方法。通过借鉴扩充响应曲线法,将PID控制的三个控制参数转变为单个参数KP的整定,理论分析和计算机仿真实验结果表明,KP与系统的闭环响应特性具有简单且直观的对应关系,因而可以根据闭环响应曲线来调整KP使系统响应曲线满足控制指标要求,而且该方法能较方便地由计算机程序实现参数自整定。通过一个温度控制物理实验验证了理论分析与仿真结果的正确性。
Discussed a PID control parameters tuning approach using the feasibility of closed-loop response curve based on large inertia and time delay sestem.It turns the three control parameters for PID control into a single parameter of KP by the expansion of the response curve drawing method.Theoretical analysis and computer simulation results show that,the relationship between KP and the system’s closed-loop response characteristics is simple and intuitive,according to the closed-loop response curve,it can adjust the KP to make the response curves of the system to meet the control target.Besides the method can be more convenient to achieve self-tuning parameters through a computer program.Temperature control via a physical experiment to verify the theoretical analysis and simulation results are correct.The correction of the theoretical analysis and simulation results are verified by a Temperature control physics experiment.
出处
《自动化与仪表》
北大核心
2010年第7期32-36,共5页
Automation & Instrumentation
基金
广西科技攻关项目(桂科攻0815001-21)