Influence of disturbances in power network on torsional torques in big power turbines-generator shafts

• Autorzy: Wiśniewski J.
• Konferencja: Computer Applications in Electrical Engineering 2011 (11-13.04.2011; Poznań, Polska)
• Języki publikacji: EN

Abstrakty

EN

The mechanical data of turbines and a generator of 1000 MW reference unit, working at overcritical parameters, were established. Using the modal method, the characteristic frequencies of torsional oscillations in shafts of rotating masses were calculated. The values of torsional torques in shafts which can arise during faults in electrical networks, like close distance short-circuits, the action of automatic reclosing, synchronization, as well influence of electromagnetic torques from the network side causing the resonance oscillations of unit were investigated.

Słowa kluczowe

EN

electrical networks; turbine-generator; EMTP-ATP program

• Wydawca: Wydawnictwo Politechniki Poznańskiej
• Czasopismo: Computer Applications in Electrical Engineering
• Rocznik: 2011
• Tom: Vol. 9
• Strony: 150--160
• Opis fizyczny: Bibliogr. 8 poz., rys., tab.

Twórcy

autor

Wiśniewski J.

• Technical University of Lodz 90-924 Łódź, Stefanowskiego 18/22

Bibliografia

• [1] Zagadnienia projektowania i eksploatacji kotłów i turbin do nadkry tycznych bloków węglowych. Praca zbiorowa. Wyd. Politechniki Śląskiej, Gliwice 2010 (in Polish).
• [2] EMTP Theory Book. Bonneville Power Administration, 1987.
• [3] Machowski J., Białek J., Bumby J.: Power System Dynamics and Stability. John Wiley & Sons Ltd, 1997.
• [4] Jennings G., Harley R.: New index parameter for rapid evaluation of turbo-generator subsynchronous resonance susceptibility. Electric Power Systems Research, 37, 1996.
• [5] Jose A. Castillo J.: Turbo-generator torsional behavior using the participation factors and considering the static loads model. Transmission and Distribution Conference and Exposition: Latin America, IEEE/PES, 2008.
• [6] Maljkovic Z., Stegic M., Kuterovac L.: Torsional oscillations of the turbine-generator due to network faults. 14th International Power Electronics and Motion Control Conference, EPE-PEMC, 2010.
• [7] Tsai J.: A new single-pole switching technique for suppressing turbine-generator torsional vibrations and enhancing power stability and continuity. IET Gener. Transm. Distrib., 5, 2007.
• [8] Joyce J., Kulig T.: Torsional Fatigue of Turbine-Generator Shafts Caused By Different Electrical System Faults and Switching Operations. IEEE Transactions on Power Apparatus and Systems, Vol. PAS-97, No. 5, Sept/Oct 1978.