| 引用本文: | 曹广益.对流型热交换器PI反馈控制的稳定性与跟轨迹[J].控制理论与应用,1989,6(S2):9~14.[点击复制] |
| Cao Guangyi.Stability and Root-loci of Counter Flow Heat Exchanger PI Feedback Control[J].Control Theory and Technology,1989,6(S2):9~14.[点击复制] |
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| 对流型热交换器PI反馈控制的稳定性与跟轨迹 |
| Stability and Root-loci of Counter Flow Heat Exchanger PI Feedback Control |
| 摘要点击 858 全文点击 374 投稿时间：1986-06-13 修订日期：1987-10-27 |
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| DOI编号 |
| 1989,6(S2):9-14 |
| 中文关键词 |
| 英文关键词 |
| 基金项目 |
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| 中文摘要 |
| 顺流、对流热交换器是常见的一种热交换器，是典型的分布参数系统。在数学上用偏微分方程描述。从由传递函数得到的频率特性的对数幅相特性来看，对流型的相移特性曲线始终不穿越-180。。因此，在生产过程中，大多采用比例校正的方法。为从理论上深入探讨一些问题，我们引入PI校正。本文对引入PI校正后，比例系数Kp、特别是积分系统Ki对系统稳定性影响进行了分析。研究其Kp、Ki所构成的稳定边界及系统跟轨迹的对应关系。 |
| 英文摘要 |
| Parallel and counter flow heat exchangers are ordinary types of heat exchangers, they are typical distributed parameter systems. It can be seen from the frequency response characteristics that the phase plots of the parallel heat exchangers never cross the -180。 line. Therefore proportional control is usually used in such system. In order to improve system performance, in this paper we use both proportional and integral control, and discuss the effect of the values of proportional constant Kp and especially the integral constant Ki with respect to system stability. The stability boundary relative to Kp and Ki as well as the corresponding relationship between the stability boundary and the root-locus of the system are also investigated. |
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