DocumentCode :
1870790
Title :
Application of adjustable speed hydro (ASH) machines in the Norwegian power system
Author :
Gjengedal, Terje
Volume :
2
fYear :
2001
fDate :
2001
Abstract :
The main subject in this paper is the adjustable speed hydro (ASH) machine concept and its potential applications. The ASH machine gives a contribution to increased efficiency in the penstock/turbine system as well as an improved flexibility with respect to the electrical system. By means of its quick response to network events, the ASH machine is able to obtain an increased stability margin and thereby a more safe operation of the power system. On the other hand, this represents new opportunities for the power producer as well as for the system operator in utilising the transmission network even better. The paper has shown that transmission lines appearing as bottlenecks with respect to power demand may increase their transfer capacity as ASH machines are introduced in the network. In turn, this may lead to a postponement of high investment costs for new overhead lines. Furthermore, the paper has given a quantification of how much the power export out of an example region can be increased due to introduction of ASH machines
Keywords :
control system analysis; hydraulic turbines; hydroelectric generators; hydroelectric power stations; machine control; machine theory; power system stability; variable speed gear; Norway; adjustable speed hydro machine concept; investment costs; overhead lines; penstock/turbine system; power export; stability margin; transfer capacity; transmission lines; transmission network; Ash; Maintenance; Power generation; Power system reliability; Power system stability; Power system transients; Power systems; Reactive power control; Rotors; Turbines;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Power Tech Proceedings, 2001 IEEE Porto
Conference_Location :
Porto
Print_ISBN :
0-7803-7139-9
Type :
conf
DOI :
10.1109/PTC.2001.964715
Filename :
964715
Link To Document :
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