Impact of Virtual Inertia on DC Grid Stability With Constant Power Loads
نویسندگان
چکیده
Virtual inertia is an effective control approach to attenuate sudden voltage changes during transient events in low-inertia dc grids. While methods have been proposed implement virtual inertia, its impact on grid stability the presence of constant power loads (CPLs) remains unclear. In this letter, we perform a rigorous analysis for grids with CPLs powered by virtual-inertia-enhanced converters. We derive closed-form criterion that can be used evaluate system stability, and demonstrate that, given set parameters, powering improved range designs. provide analytical expressions optimal improves maximum does not deteriorate stability. addition, present step-by-step guideline design stable inertia. Test results are presented validate analysis.
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ژورنال
عنوان ژورنال: IEEE Transactions on Power Electronics
سال: 2023
ISSN: ['1941-0107', '0885-8993']
DOI: https://doi.org/10.1109/tpel.2023.3243138