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Ingeteam has presented its simulation models developed to address the complex grid stability and connectivity issues that come with the integration of wind power into global electricity transport infrastructures.
With each wind farm grid conditions demanding specific and stringent requirements, complex modelling is paramount to solve grid connectivity and stability challenges. In particular, the need to work with very low Short Circuit Ratio (SCR) or quality factor grids, as well as the existence of sub-synchronous and parallel resonances are significant challenges. To overcome these issues, it is indispensable to develop an accurate modelling of the converter control loops, and its interaction with the grid through the use of Linear Time-Invariant (LTI) strategies.
Both Software in the Loop (SiL) and Hardware in the Loop (HiL) systems are commonly used in the industry, but the simulation models developed by Ingeteam as Linear Time-Invariant (LTI) allow for higher agility to run parameter sweeps and to test new algorithms.
With the use of one state-space matrix, the stability and dynamic behaviour of the system can be obtained from the LTI model. To achieve this, Ingeteam characterises all possible casuistic of the grid parameter variations and conditions, generates the LTI models for all the cases, and validates the solution through SiL and HiL systems.
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