Quantitative Difference Between the Effective Inertia and Set Inertia Parameter of Virtual Synchronous Generators DOI Creative Commons
Ryosuke Shikuma, Dai Orihara, Hiroshi Kikusato

et al.

Energies, Journal Year: 2025, Volume and Issue: 18(7), P. 1683 - 1683

Published: March 27, 2025

Virtual synchronous generators (VSGs) have been developed to mitigate the increase in rate of change frequency (ROCOF) power systems by replacing (SGs) with inverter-based resources. VSGs mimic dynamics and control SGs; however, mechanical delay typical an SG’s turbine is often excluded, limiting improvements VSG’s response. The fast response (FFR) can help reduce ROCOF enhance emulated inertia. This implies that effective inertia (EI) exceed set parameter, posing challenges for operators allocating sufficient VSG capacity considering required stable operation. In this study, we quantitatively analyzed difference between EI a parameter separating active output into governor responses. quantitative analysis revealed when provides FFR within inertia-time domain, exceeds parameter. Furthermore, sensitivities parameters ratio, which related synchronizing coefficients initial sharing were analyzed. These factors theoretically considered, simulations validated their characteristics.

Language: Английский

Quantitative Difference Between the Effective Inertia and Set Inertia Parameter of Virtual Synchronous Generators DOI Creative Commons
Ryosuke Shikuma, Dai Orihara, Hiroshi Kikusato

et al.

Energies, Journal Year: 2025, Volume and Issue: 18(7), P. 1683 - 1683

Published: March 27, 2025

Virtual synchronous generators (VSGs) have been developed to mitigate the increase in rate of change frequency (ROCOF) power systems by replacing (SGs) with inverter-based resources. VSGs mimic dynamics and control SGs; however, mechanical delay typical an SG’s turbine is often excluded, limiting improvements VSG’s response. The fast response (FFR) can help reduce ROCOF enhance emulated inertia. This implies that effective inertia (EI) exceed set parameter, posing challenges for operators allocating sufficient VSG capacity considering required stable operation. In this study, we quantitatively analyzed difference between EI a parameter separating active output into governor responses. quantitative analysis revealed when provides FFR within inertia-time domain, exceeds parameter. Furthermore, sensitivities parameters ratio, which related synchronizing coefficients initial sharing were analyzed. These factors theoretically considered, simulations validated their characteristics.

Language: Английский

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