Transient Stability of Transmission and Distribution Grids with Grid-Forming Inverter-Based Resources: Phasor Domain Modeling
This paper presents phasor domain models for three distinct grid-forming (GFM) control strategies applied to inverter-based resources (IBR), including droop-based control, virtual synchronous machine (VSM) control, and dispatchable virtual oscillator control (dVOC). These control strategies address stability issues in low-inertia power systems, a prominent challenge amid the transition to renewable energy. The study addresses a research gap by investigating real-time phasor models for comprehensive renewable energy integration assessments, particularly in transmission and distribution systems (T&D), offering computational efficiency and precision. Two key contributions outlined by this paper include the development of a unified GFM phasor-domain model for real-time grid-level stability analysis and the introduction of a T&D co-simulation approach using the ePHASORSIM solver to explore the impact of different levels of IBR penetration on the stability of the system after a fault. This study aims to provide a better understanding of the generator-IBR interaction on T&D systems, offering a new tool for system planning and analysis.
- Research Organization:
- Binghamton University
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- EE0009341
- OSTI ID:
- 2369456
- Country of Publication:
- United States
- Language:
- English
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