Stability of Multimicrogrids: New Certificates, Distributed Control, and Braess’s Paradox

Gholami, Amin; Sun, Xu Andy

doi:10.1109/tcns.2021.3102006

Cited by 4 publications

(2 citation statements)

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“…Distributed control is a dynamic version of distributed optimization that aims to maintain the stability of a power grid in response to disturbances around a stable operating point set by distributed operation 126 . One promising line of research is the development of simple, distributed control strategies for ensuring the stability of power grids.…”

Section: Distributed Optimizationmentioning

confidence: 99%

“…Many fundamental questions remain to be addressed in the application of distributed control to microgrids. For example, the Braess paradox shows that increased network connectivity can lead to instability 126 . Increased damping coefficients (parameters that reflect the capability of power systems to reduce oscillations) can also lead to instability in the context of the nonlinear dynamics of power grids 127 .…”

Section: Distributed Optimizationmentioning

confidence: 99%

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Resilience of renewable power systems under climate risks

Xu,

Feng,

Lin

et al. 2024

Nat Rev Electr Eng

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Climate change is expected to intensify the effects of extreme weather events on power systems and increase the frequency of severe power outages. The large-scale integration of environment-dependent renewables during energy decarbonization could induce increased uncertainty in the supply-demand balance and climate vulnerability of power grids. This Perspective discusses the superimposed risks of climate change, extreme weather events and renewable energy integration, which collectively affect power system resilience. Insights drawn from large-scale spatiotemporal data on historical US power outages induced by tropical cyclones illustrate the vital role of grid inertia and system flexibility in maintaining the balance between supply and demand, thereby preventing catastrophic cascading failures. Alarmingly, the future projections under diverse emission pathways signal that climate hazards -especially tropical cyclones and heatwaves -are intensifying and can cause even greater impacts on the power grids. High-penetration renewable power systems under climate change may face escalating challenges, including more severe infrastructure damage, lower grid inertia and flexibility, and longer post-event recovery. Towards a net-zero future, this Perspective then explores approaches for harnessing the inherent potential of distributed renewables for climate resilience through forming microgrids, aligned with holistic technical solutions such as grid-forming inverters, distributed energy storage, cross-sector interoperability, distributed optimization and climate-energy integrated modelling. Sections Key points• Large-scale integration of environment-dependent renewables coupled with intensifying climate extremes introduces superimposed risks on future net-zero power systems, expected to increase the frequency of severe power outages.• High-penetration renewable power systems under climate change may face escalating challenges, including more severe infrastructure damage, lower grid inertia and flexibility, and longer post-event recovery.• Achieving a climate-resilient power system in a net-zero future requires approaches for harnessing the inherent potential of distributed renewables through forming microgrids.Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.

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Section: Distributed Optimizationmentioning

confidence: 99%

Section: Distributed Optimizationmentioning

confidence: 99%