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首页> 外文期刊>IEEE Transactions on Automatic Control >Stability of discrete override and cascade-limiter single-loop control systems
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Stability of discrete override and cascade-limiter single-loop control systems

机译:离散倍率和级联限制器单回路控制系统的稳定性

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摘要

Nonlinear elements such as internal limits in cascade regulators or override loops are often added to standard linear regulators in order to keep an additional process output within the limits during startup or large load swings. These systems generally are designed intuitively and tuned by experiments on the plant. Stability analysis is not often feasible due to time constraints, but could improve both security and insight. The authors are engaged in the development of analytical tools for the design of such systems. Here, the equivalence of different discrete-time implementations is proved. Stability tests are prepared that are directly applicable in practical design work. The analysis is shown to cover also control saturation with antiwindup in discrete forms and all corresponding cases with continuous regulators. A numerical example is given to illustrate the design procedures.
机译:通常在标准线性调节器中添加非线性元素,例如级联调节器中的内部极限或超驰环路,以便在启动或大负载摆幅期间将额外的过程输出保持在极限范围内。这些系统通常是直观设计的,并通过工厂的实验进行调整。由于时间限制,稳定性分析通常不可行,但可以提高安全性和洞察力。作者从事用于此类系统设计的分析工具的开发。在此,证明了不同离散时间实现的等效性。准备了可直接用于实际设计工作的稳定性测试。分析表明,该方法还涵盖了离散形式的抗饱和控制饱和和连续调节器的所有相应情况。数值例子说明了设计过程。

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