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Contributions to the Methodologies and Technologies for the Intelligent Control-Maintenance-technical Management Systems (ICMMS) in Hydropower Plants

Abstract : Based on the system thought and GERAM, a methodology and ICMMS (Intelligent Control-Maintenance-technical Management Systems) reference model for hydropower plants are proposed. Because the structures of the hydropower generating process are unchanging, the methodology employs the process-oriented approaches to model the hydropower plants, and the models constructed through this methodology are stable and reusable. The proposed Reference Model grasps the similarities and unchangeabilities of the hydropower plants, therefore the redistributing of the function modules inside the system can be done in a natural and easy way, while the synergies among the components of the system are guaranteed. To implement the ICMMS in hydropower plants, HSAS (Hybrid Smart Automation System) is proposed in which integrates the conventional controllers and fieldbus based components under fully distributed system architecture. In the maintenance domain, the concept of Condition Monitoring is clearly defined, and related technologies for hydropower plants are summarized and analyzed. The condition monitoring system is integrated into the ICMMS under the Reference Model proposed above. In the technical management domain, the performance evaluation methods and implement system is a lacuna item to the HGUs (Hydroelectric Generating Units), however it is indispensable for ICMMS. Some important concepts, indexes, criterions and methodologies for the performance evaluation on HGUs are proposed. An economic performances evaluation system for HGUs is proposed, with which the efficiency state, the level of operation management, and the maintenance state of an HGU can be measured through qualitative indexes. A real test case illustrated effectiveness of the method. Based on this method, a new maintenance strategy, EBM (Economic performance Based Maintenance) is proposed and illustrated through a case study. As a contribution to the control domain, a new method, DAA (Disturbance Attenuation Approach), is proposed to design hydraulic turbine governors. Finally, some philosophical thoughtlets of the author for the system integration are presented.
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Contributor : Yongqian Liu <>
Submitted on : Thursday, September 18, 2003 - 10:36:29 AM
Last modification on : Friday, October 23, 2020 - 8:38:03 AM
Long-term archiving on: : Wednesday, September 12, 2012 - 10:30:46 AM


  • HAL Id : tel-00003396, version 1



Yongqian Liu. Contributions to the Methodologies and Technologies for the Intelligent Control-Maintenance-technical Management Systems (ICMMS) in Hydropower Plants. Automatic. Université Henri Poincaré - Nancy I, 2002. English. ⟨tel-00003396⟩



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