Frequency-domain screening methods and benchmarking for converter-based systems

Frequency-domain screening is a valuable method for power system stability assessment, and it facilitates grid integration process and handling interoperability issues of power electronicsinterfaced devices (PEIDs) due to its suitability for deriving equivalent representations from black-boxed control systems via frequency scan tests. However, the current applicable frequency scan tools are mostly developed based on local implementations by single tool developer and mainly applied for single device tests. There is lack of common understanding of the frequency scan methodology and testing experience of various tools, which makes it hard to extend frequency-domain screening for broader power system applications.