Method for controlling charging maneuvers in a hydroelectric...

Details Method for controlling charging maneuvers in a hydroelectric... Method for controlling charging maneuvers in a hydroelectric...

F - Mech Eng,Light,Heat,Weapons

03

B

F03B 15/14 (2006.01)

Patent

CA 2366366

A method for the prevention of impermissible load manoeuvres in hydroelectric power plants is set forth by means of which the temporal behaviour of the level in a surge tank is determined and the state consisting of the actual level (z) and the net influx (.DELTA.Q) is compared with a boundary curve in'a phase plane. When the boundary curve is reached the further load increase is interrupted so that a specific minimum or maximum value of the level in the surge tank can not be exceeded.

L'invention concerne un procédé servant à empêcher des manoeuvres de charge non admissibles dans des centrales hydroélectriques. Ce procédé consiste à déterminer l'évolution dans le temps du niveau dans une chambre d'équilibre, et à comparer un état, obtenu à partir du niveau réel (z) et du débit net ( DELTA Q) dans un plan de phase, à une courbe limite. Lorsque cette courbe limite est atteinte, l'augmentation de charge est interrompue de sorte qu'un niveau minimal ou maximal déterminé, dans la chambre d'équilibre, ne soit pas dépassé.

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