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This paper proposes a control scheme to force homogeneity for heterogenous network of the grid-forming (GFM) inverters in power electronics dominated grid (PEDG) to enable their aggregation and coherent dynamic interaction. Increased penetration of the renewable energy in distributed generation (DG) fashion is moving traditional power system to a highly disperse and complex heterogenous system i.e., PEDG with fleet of grid-forming and grid-following inverters. Optimal coordination, stability assessment, and situational awareness of PEDG is challenging due to numerous heterogenous inverters operating at the grid-edge that is outside the traditional utility centric power generation boundaries. Aggregation of these inverters will not be insightful due to their heterogenous characteristics. The proposed control scheme to force enclaved homogeneity (FEH) enables an insightful aggregation of GFM that can fully mimic the given physical system dynamics. The proposed FEH scheme enables coherent and homogenized dynamic interaction of GFM inverters that enhances the PEDG resiliency. Moreover, different cluster of GFM can be merged into single cluster with minimal synchronization time and frequency fluctuations. Accurate reference models can be achieved that enables effective dynamic assessment and optimal coordination which results in resilient PEDG. Several case studies provided to validate the effectiveness of proposed FEH in network of GFM. Then, GFMs aggregation and developed reference model for the PEDG system is validated via multiple comparative case studies.
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This content will become publicly available on April 8, 2026
Uncertainty Propagation Through Nonlinear Flows of Grid-Forming Exclusive Power Systems
Ascertaining the transient stability of grid-forming (GFM) exclusive systems under uncertain operating conditions is an emerging problem. This difficulty is addressed here by engineering: (i) an analytic model of GFM power plants for current saturation and (ii) an explicit Runge-Kutta scheme to propagate initial condition uncertainties represented as multivariate polynomial vectors. The propagation scheme builds upon an innovative truncated polynomial multiplication algorithm to prevent polynomial-degree explosion due to such successive operations. Transient stability is ascertained from the calculated polynomials using contraction theory. These contributions are showcased via the modified WSCC 9- and IEEE 39-bus systems.
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- Award ID(s):
- 2013739
- PAR ID:
- 10581929
- Publisher / Repository:
- IEEE
- Date Published:
- Journal Name:
- IEEE Transactions on Power Systems
- ISSN:
- 0885-8950
- Page Range / eLocation ID:
- 1 to 16
- Format(s):
- Medium: X
- Sponsoring Org:
- National Science Foundation
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