62 research outputs found
Small-Signal Stability and SCR Enhancement of Offshore WPPs with Synchronous Condensers
Synchronous condensers (SCs) have been reported to improve the overall
stability and short-circuit power of a power system. SCs are also being
integrated into offshore wind power plants (WPPs) for the same reason. This
paper, investigates the effect of synchronous condensers on an offshore wind
power plant with grid-following (GFL) and grid-forming (GFM) converter
controls. Primarily, the effect of synchronous condensers can be two-fold: (1)
overall stability enhancement of the WPP by providing reactive power support,
(2) contribution to the effective short circuit ratio (SCR) of the WPP by fault
current support. Therefore, this paper focuses on studies concerning these
effects on an aggregated model of a WPP connected to the grid. To that end, a
state-space model of the test system is developed for small-signal stability
assessment and the synchronous condenser's effect on its stability. In
addition, a mathematical explanation of SCR enhancement with synchronous
condenser is provided and is verified with time-domain electromagnetic
transient simulations
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