Strengthening Transmission System Resilience Against Extreme Weather Events by Undergrounding Selected Lines
Natural disasters, such as extreme weather events (EWEs), can cause significant damage to power systems. In fact, it is expected that the intensity and frequency of EWEs will increase the next years due to climate change, making power system resilience enhancement necessary. This paper proposes a transmission resilience planning solution by determining the lines to be placed underground in order to minimize load shedding in the most cost-efficient way taking into account historical EWEs (HEWEs).
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A Numerical Approach for Hybrid Simulation of Power System Dynamics Considering Extreme Icing Events
The global climate change leads to more extreme meteorological conditions such as icing weather, which have caused great losses to power systems. Comprehensive simulation tools are required to enhance the capability of power system risk assessment under extreme weather conditions. A hybrid numerical simulation scheme integrating icing weather events with power system dynamics is proposed to extend power system numerical simulation. A technique is developed to efficiently simulate the interaction of slow dynamics of weather events and fast dynamics of power systems. An extended package for PSS/E enabling hybrid simulation of icing event and power system disturbance is developed, based on which a hybrid simulation platform is established.
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A Multi-State Model for Transmission System Resilience Enhancement Against Short-Circuit Faults Caused by Extreme Weather Events
Due to global climate change, the effect of extreme weather on power systems has attracted extensive attention. In the prior-art grid resilience studies, the hurricanes or wildfires are mainly defended in terms of expected line damages, while they are prone to trigger short-circuit fault (SCF) evolved with dynamic influence in reality. In this paper, a fragile model is developed to evaluate the nodal SCF probability considering the insulation aging of equipment and extreme weather condition.
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Resilience Enhancement With Sequentially Proactive Operation Strategies
Extreme weather events, many of which are climate change related, are occurring with increasing frequency and intensity and causing catastrophic outages, reminding the need to enhance the resilience of power systems. This paper proposes a proactive operation strategy to enhance system resilience during an unfolding extreme event. The uncertain sequential transition of system states driven by the evolution of extreme events is modeled as a Markov process. At each decision epoch, the system topology is used to construct a Markov state. Transition probabilities are evaluated according to failure rates caused by extreme events.
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Resilience Assessment of Distribution Systems Integrated With Distributed Energy Resources
The resilience of electric systems is receiving growing attention due to their increased vulnerability to infrastructure damages and widespread outages from frequent extreme climactic conditions attributed to global warming effects. Resilience evaluation methods should recognize the uncertainties and correlations in the performance variations of different types of energy resources, load characteristics, extreme events and their impacts on the grid elements.
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Social Challenges of Electricity Transmission: Grid Deployment in Germany, the United Kingdom, and Belgium
The European Union needs to decarbonize its energy generation to reach its goals of climate change mitigation and energy security policies. In 2011, the European Commission published a road map to reduce greenhouse gases (GHG) by at least 80% by 2050. The road map foresees five pathways, and, across all of them, renewable energy generation plays a significantly stronger role today. The deployment of renewable energy sources (RES ) to generate electricity is one possible option to decarbonize energy generation.
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Performance Degradation of Levee-Protected Electric Power Network Due to Flooding in a Changing Climate
This paper presents a methodological framework to evaluate the resilience, with the primary focus on performance degradation, of levee-protected electric power networks to flooding in a changing climate. To this end, a multi-disciplinary framework is established by integrating climate science, hydrology, and electric power network analysis. The framework quantifies the effect of climate change on flood hazard levels in a levee-protected area and the subsequent changes in the resilience of the electric power network.
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VOLTTRON: An Open-Source Software Platform of the Future
Buildings consume more than 30% of the total primary energy expended worldwide and contribute to a third of the world?s greenhouse gas (GHG) emissions. In the United States, buildings consume more than 40% of the total energy and contribute almost 38% of GHG emissions. In addition, the buildings in the United States consume more than 75% of the electricity generated. The need to mitigate climate change is driving efforts to make U.S. electric power generation cleaner, and this provides new impetus for improving the operating efficiency of buildings at scale and increasing the hosting capacity of distributed renewable generation..
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Electric Vehicles and Climate Change: Additional Contribution and Improved Economic Justification
Climate and weather patterns are changing in California and across the planet. Extreme weather events such as wildfires are happening more frequently, precipitation has become increasingly variable, heat waves are more common, and temperatures are warming. Climate and weather scientists have tracked the observed changes since the mid-20th century and linked them mainly to human activity and influence. The human activity, including the burning of fossil fuels, has led to a significant release of carbon dioxide and other greenhouse gases into the atmosphere, which disrupts the global carbon cycle and leads to global warming.
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