| 基于DRP的环形网络控制系统稳定性分析 |
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| 引用本文： | 阮伟,陈根,刘国安.基于DRP的环形网络控制系统稳定性分析[J].石油化工自动化,2012,48(1):48-51. |
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| 作者姓名： | 阮伟 陈根 刘国安 |
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| 作者单位： | 浙江中控研究院有限公司,杭州,310027 |
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| 摘 要： | 根据现有的DRP故障恢复时间模型和系统采样周期,建立环形网络化控制系统丢包模型。基于该模型,利用马尔可夫模型分析系统环形网络控制系统故障切换过程中的丢包与控制系统稳定性的关系,给出了环形网络恢复时间、网络交换设备数量以及控制系统稳定性三者之间的定量关系。提出了构建稳定的、基于DRP环形网络化控制系统的准则。
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| 关 键 词： | 分布式环形网络冗余技术 网络控制系统 环形拓扑 故障恢复 稳定性 |
Stability Evaluation of Ring Networked Control Systems Based on DRP Protocol |
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| Affiliation: | Ruan Wei,Chen Gen,Liu Guo’an(Zhejiang Supcon Research Co.Ltd.,Hangzhou,310027,China) |
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| Abstract: | A data packet dropout model of ring networked control system is established according to current DRP fault recovery time model and system communication cycle.Based on the data packet dropout model,utilizing the relationship between dropout model in the switching process of ring networked control system in analysis system with Markov model and control system stability,the quantitative relationship among ring network recovery time,quantity of network exchange device and control system stability,and also the rules for constructing stable ring networked control system based on DRP are proposed. |
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| Keywords: | DRP NCS ring topology fault recovery stability |
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