Solvina has successfully performed simulated island operation tests of two gas turbines owned by Svenska Kraftnät Gasturbiner AB. The gas turbines B3 and B4 (50MW and 60MW respectively) and have recently been equipped with new control systems. This motivated testing their island operation capability.
The test method, made it possible to test the turbines at conditions equal to island operation conditions, but without the risks involved with disconnecting an isolated grid without knowing that the turbine control systems are capable of controlling the frequency.
This special test method was developed by Solvina in cooperation with Svenska Kraftnät, the owner and operator of the Swedish national electricity grid. It has now been used for testing control behavior and performance of more than 40 units.
The gas turbines will now, after tuning performed during these tests, work perfectly also during real island operation, ie if they have to be run isolated from the main grid.
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