Damping Power System Oscillations by Wind Power Plants.

This paper presents the development process of a Power Oscillation Damping (POD) functionality for Wind Power Plants (WPPs) up to commissioning tests. Two different POD modes are designed, based on an equivalent model representing the transmission grid of Northern Finland. The performance of both POD modes is verified with online tests during the commissioning of the WPP. The test results that damping of electromechanical oscillations in the area does not decrease compared to the situation with the WPP offline, also with an increased power transfer due to the WPP infeed. The WPP is able to mitigate the negative impact on the damping caused by the increased power surplus in the area and helps to maintain the transfer capability of the grid in Northern Finland. [ABSTRACT FROM AUTHOR]