Communication Dans Un Congrès Année : 2016

Study on Dynamic Characteristics of Rotor-bearing Model in the Hydraulic-mechanical-electric Coupled System of Hydro Generator Unit

Résumé

A hydraulic-mechanical-electric coupled model for hydroelectric shaft-bearing system was established, which contains the penstock model of water-carriage system, the model of governor system and the model of exciter system. A differential equations for coupled model, consisting of the key parameters from different systems (such as head, flow, speed and exciting current), were established and solved simultaneously. Further,a rotor-bearing system model is coupled to the whole system by User Programmable Features (UPFs).On this basis, a newly method which was focused on the study of rotor system dynamic nonlinear properties during the process of operation condition’s changing was introduced. In this paper, the model was applied in the rotor dynamic analysis in applicable start-up laws with different parameters. This analysis method could provide a reference to the stable and optimum operation of hydro generator units.

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hal-01890083 , version 1 (08-10-2018)

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  • HAL Id : hal-01890083 , version 1

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Zhenyue Ma, Qianqian Wu. Study on Dynamic Characteristics of Rotor-bearing Model in the Hydraulic-mechanical-electric Coupled System of Hydro Generator Unit. 16th International Symposium on Transport Phenomena and Dynamics of Rotating Machinery, Apr 2016, Honolulu, United States. ⟨hal-01890083⟩

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