Enabling Grid-Forming Control Under Unbalanced Conditions
Conference
·
OSTI ID:3029600
- Idaho National Laboratory
Standalone microgrids often experience unbalanced loading and faults, which can cause grid-forming control designed for balanced conditions to produce oscillatory responses. To address this issue, a compact time-domain transformation appropriate for inverter control is proposed, allowing the conversion of unbalanced three-phase signals to positive and negative synchronous reference frames. This transformation supports the development of a grid-forming control with fault ride-through, featuring frequency and voltage droop controllers and nested current and voltage control loops that seamlessly integrate an enhanced current limiter. The effectiveness of the proposed control and transformation is demonstrated through analytical results and electromagnetic transient simulation.
- Research Organization:
- Idaho National Laboratory (INL), Idaho Falls, ID (United States)
- Sponsoring Organization:
- USDOE Office of Nuclear Energy (NE); USDOE Office of Energy Efficiency and Renewable Energy (EERE)
- DOE Contract Number:
- AC07-05ID14517;
- OSTI ID:
- 3029600
- Report Number(s):
- INL/CON-26-91776
- Resource Type:
- Conference proceedings
- Conference Information:
- IEEE Energy Conversion Conference and Expo, Philadelphia, Pennsylvania, USA, 10/19/2025 - 10/23/2025
- Country of Publication:
- United States
- Language:
- English
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