TY - GEN
T1 - Frequency stability in island networks
T2 - 20th Power Systems Computation Conference, PSCC 2018
AU - Gratza, Michael
AU - Witzmann, Rolf
AU - Steinhart, Christoph J.
AU - Finkel, Michael
AU - Becker, Martin
AU - Nagel, Thomas
AU - Wopperer, Tobias
AU - Wackerl, Helmut
N1 - Publisher Copyright:
© 2018 Power Systems Computation Conference.
PY - 2018/8/20
Y1 - 2018/8/20
N2 - Large switching events can potentially threaten the frequency stability in small island systems. Simulation models of generators and loads therefore help to predict the frequency behavior and deviations after switching events. Standard models for hydraulic systems are often unable to represent real system behavior during critical events with sufficient accuracy. A dynamic simulation model for a real double regulated Kaplan turbine is presented in this paper. The model is easily adapted to represent other Kaplan turbines. A method for measurement and calculation of the required parameters is presented. Further, it is shown that, through minor changes in the turbine control, drastic improvements in the dynamic turbine behavior can be achieved, without the need to change hardware components. All results are validated with the help of measurement data taken from a real 5 MW Kaplan turbine built in a run-of-the-river power plant.
AB - Large switching events can potentially threaten the frequency stability in small island systems. Simulation models of generators and loads therefore help to predict the frequency behavior and deviations after switching events. Standard models for hydraulic systems are often unable to represent real system behavior during critical events with sufficient accuracy. A dynamic simulation model for a real double regulated Kaplan turbine is presented in this paper. The model is easily adapted to represent other Kaplan turbines. A method for measurement and calculation of the required parameters is presented. Further, it is shown that, through minor changes in the turbine control, drastic improvements in the dynamic turbine behavior can be achieved, without the need to change hardware components. All results are validated with the help of measurement data taken from a real 5 MW Kaplan turbine built in a run-of-the-river power plant.
KW - Dynamic turbine model
KW - Frequency stability
KW - Improved dynamics
KW - Island operation
UR - http://www.scopus.com/inward/record.url?scp=85054021188&partnerID=8YFLogxK
U2 - 10.23919/PSCC.2018.8442445
DO - 10.23919/PSCC.2018.8442445
M3 - Conference contribution
AN - SCOPUS:85054021188
SN - 9781910963104
T3 - 20th Power Systems Computation Conference, PSCC 2018
BT - 20th Power Systems Computation Conference, PSCC 2018
PB - Institute of Electrical and Electronics Engineers Inc.
Y2 - 11 June 2018 through 15 June 2018
ER -