Abstract
Transient power allocation imbalance among pa -rallel Virtual Synchronous Generators (VSGs) inverters caused by mismatched line impedances. This paper proposes a communication-free method to improve transient power sharing accuracy among VSGs in renewable-rich microgrids. Addressing line impedance mismatch and circulating currents, the method integrates online impedance estimation with capacity-proportional virtual impedance compensation. A circulating current included small-signal model enables cooptimization of virtual inertia and damping parameters via stability analysis, accelerating transient power convergence. System dynamics are evaluated using center-of-inertia frequency derived from rotor swing equations. Simulations are performed to validate confirm precise proportional power allocation during transients, eliminating overloading in small-capacity VSGs while significantly enhancing frequency nadir and stability.
| Original language | English |
|---|---|
| Journal | Symposium on Sensorless Control for Electrical Drives, SLED |
| Issue number | 2025 |
| DOIs | |
| State | Published - 2025 |
| Event | 12th IEEE International Symposium on Sensorless Control for Electrical Drives, SLED 2025 - Harbin, China Duration: 15 Aug 2025 → 17 Aug 2025 |
UN SDGs
This output contributes to the following UN Sustainable Development Goals (SDGs)
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SDG 7 Affordable and Clean Energy
Keywords
- Transient power allocation
- inertia power
- virtual impedance
- virtual synchronous generators
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