Albert Moser
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View article: Integrating water availability for electrolysis into energy system modeling
Integrating water availability for electrolysis into energy system modeling Open
In recent years, temperature records have been broken all over the world and the global temperature keeps rising. As a result, fresh water availability will diminish ever more and more due to droughts and extreme weather events. Water is a…
View article: Complexity Reduction for Converter-Driven Stability Analysis in Transmission Systems
Complexity Reduction for Converter-Driven Stability Analysis in Transmission Systems Open
The high penetration of power electronic converters with complex control systems is changing the power system dynamics, introducing new challenges such as converter-driven stability incidents. Traditional stability analysis methods, suitab…
View article: Finding better alternatives: Shadow prices of near-optimal solutions in energy system optimization modeling
Finding better alternatives: Shadow prices of near-optimal solutions in energy system optimization modeling Open
Energy System Optimization Models are applied to inform decision making processes and therefore must account for the uncertainty as it exists in the real world. In the recent decade, Modeling to Generate Alternatives gained popularity for …
View article: THERMOPHYSICAL PROPERTIES OF AIR-PA66-CU PLASMAS FOR LOW-VOLTAGE DIRECT CURRENT SWITCHGEAR
THERMOPHYSICAL PROPERTIES OF AIR-PA66-CU PLASMAS FOR LOW-VOLTAGE DIRECT CURRENT SWITCHGEAR Open
International audience
View article: Influence of Oxygen-containing Filling Gas Mixtures on the Interruption Capability of MV Load Break Switches
Influence of Oxygen-containing Filling Gas Mixtures on the Interruption Capability of MV Load Break Switches Open
Nowadays SF6 is commonly used as filling gas for medium voltage load break switches due to its outstanding insulating and arc-quenching properties. However, due to its high global warming potential the interrupting performance of alternati…
View article: Validation Approach for a Spatially and Temporally Resolved Fault Arc Model
Validation Approach for a Spatially and Temporally Resolved Fault Arc Model Open
This paper presents a method to validate arc models for fault arc applications by examining the effect of changed boundary conditions on arc parameters, e.g. voltage and pressure build-up. The study shows the impact of ignition location on…
View article: Simulative Comparison of Radiation Model Parameterizations for Direct Current Arcs in a Busbar Setup
Simulative Comparison of Radiation Model Parameterizations for Direct Current Arcs in a Busbar Setup Open
The influence of different methods for calculating mean absorption coefficients on the mean arc voltage and velocity of an arc moving in air along parallel busbars is investigated in a numerical arc simulation. The radiation model used is …
View article: Thermophysical Properties of Air-PA66-Copper Plasmas for Low-Voltage Direct Current Switches
Thermophysical Properties of Air-PA66-Copper Plasmas for Low-Voltage Direct Current Switches Open
This paper presents the thermophysical properties of an air-PA66-copper mixture in thermal plasma. Equations based on mass action law, conservation of neutrality and perfect gas law are used to calculate particle number densities. Thermody…
View article: Interdependencies in HVDC grid protection: Impact of converter parameters and controls on DC fault‐ride‐through capabilities and protection system design
Interdependencies in HVDC grid protection: Impact of converter parameters and controls on DC fault‐ride‐through capabilities and protection system design Open
For future multi‐terminal HVDC networks, protection systems based on DC circuit breakers (DCCBs) are envisioned to limit the loss of power transmission towards AC grid(s). Yet, HVDC protection system design is considered a major challenge—…
View article: How Dependent Are European Power Systems and Economies on Natural Gas?—A Macroeconomic Optimization for Security of Electricity Supply
How Dependent Are European Power Systems and Economies on Natural Gas?—A Macroeconomic Optimization for Security of Electricity Supply Open
How dependent are European power systems and economies on natural gas? To answer this pressing question, we coupled a simulation model for assessing security of electricity supply and an economic optimization model. With this, we were able…
View article: Interconnecting Power-Electronic Buck Converter Modules in a Novel High-Power Test Bench for MVDC Circuit Breakers
Interconnecting Power-Electronic Buck Converter Modules in a Novel High-Power Test Bench for MVDC Circuit Breakers Open
Advances in medium voltage direct current (MVDC) technologies and the penetration of extended MVDC systems are still significantly hindered by the lack of adequate direct current (DC) switching equipment. The fundamentally different fault …
View article: Curative measures identification in congestion management exploiting temporary admissible thermal loading of overhead lines
Curative measures identification in congestion management exploiting temporary admissible thermal loading of overhead lines Open
This paper demonstrates how to consider thermal reserves of overhead lines in optimization problems for congestion management with preventive (pre‐fault) and curative (post‐fault) actions effectively to ensure N‐1 security. Solving congest…
View article: How will Local Energy Markets influence the pan-European Day-ahead Market and Transmission Systems? A Case Study for Local Markets in France and Germany
How will Local Energy Markets influence the pan-European Day-ahead Market and Transmission Systems? A Case Study for Local Markets in France and Germany Open
The energy system decarbonization leads to a decentralization of generation and flexibility. Among the new concepts to integrate the distributed flexibility are local energy markets. While a broad range of research investigates local energ…
View article: How will Local Energy Markets influence the pan-European Day-ahead Market and Transmission Systems? A Case Study for Local Markets in France and Germany
How will Local Energy Markets influence the pan-European Day-ahead Market and Transmission Systems? A Case Study for Local Markets in France and Germany Open
The energy system decarbonization leads to a decentralization of generation and flexibility. Among the new concepts to integrate the distributed flexibility are local energy markets. While a broad range of research investigates local energ…
View article: Nested Decomposition Approach for Dispatch Optimization of Large-Scale, Integrated Electricity, Methane and Hydrogen Infrastructures
Nested Decomposition Approach for Dispatch Optimization of Large-Scale, Integrated Electricity, Methane and Hydrogen Infrastructures Open
Energy system integration enables raising operational synergies by coupling the energy infrastructures for electricity, methane, and hydrogen. However, this coupling reinforces the infrastructure interdependencies, increasing the need for …
View article: Multi-Criteria based Steady-State and Dynamic Reactive Power Planning for Transmission Systems
Multi-Criteria based Steady-State and Dynamic Reactive Power Planning for Transmission Systems Open
Planning of reactive power compensation devices as part of the grid planning process is becoming increasingly important due to decreasing reactive power reserves from conventional power plants. Planning such devices requires the considerat…
View article: Analyzing Intersectoral Benefits of District Heating in an Integrated Generation and Transmission Expansion Planning Model
Analyzing Intersectoral Benefits of District Heating in an Integrated Generation and Transmission Expansion Planning Model Open
In the field of sector integration, the expansion of district heating (DH) is traditionally discussed with regard to the efficient integration of renewable energy sources (RES) and excess heat. But does DH exclusively benefit from other se…
View article: Impact of model parametrization and formulation on the explorative power of electricity network congestion management models - Insights from a grid model comparison experiment
Impact of model parametrization and formulation on the explorative power of electricity network congestion management models - Insights from a grid model comparison experiment Open
Integrating increasing shares of weather-dependent renewable energies into energy systems while maintaining high levels of security of supply constitutes a challenge for system operators. The system integration of large shares of variable …
View article: Influence of the filling gas mixture on the interruption capability of medium voltage load break switches
Influence of the filling gas mixture on the interruption capability of medium voltage load break switches Open
In today’s medium voltage switchgear SF6 is commonly used as insulating and arc quenching medium. Because of its high potential impact on the environment a substitution with an environmentally friendly alternative is pursued. In this paper…
View article: Improving Machine-Learning Diagnostics with Model-Based Data Augmentation Showcased for a Transformer Fault
Improving Machine-Learning Diagnostics with Model-Based Data Augmentation Showcased for a Transformer Fault Open
Machine-learning diagnostic systems are widely used to detect abnormal conditions in electrical equipment. Training robust and accurate diagnostic systems is challenging because only small databases of abnormal-condition data are available…
View article: Evolution of Fundamental Price Determination within Electricity Market Simulations
Evolution of Fundamental Price Determination within Electricity Market Simulations Open
Electricity prices are the key instrument for coordinating electricity markets. For long-term market analyses, price determination based on fundamental unit commitment simulations is required. Within the European wholesale market, electric…
View article: Framework for Deterministic Assessment of Risk-Averse Participation in Local Flexibility Markets †
Framework for Deterministic Assessment of Risk-Averse Participation in Local Flexibility Markets † Open
Local flexibility markets (LFMs) are a market-based concept to integrate distributed energy resources into congestion management. However, the activation of flexibility for storage-based flexibility changes the respective state of charge. …
View article: Generation and Transmission Expansion Planning With Respect to Global Warming Potential
Generation and Transmission Expansion Planning With Respect to Global Warming Potential Open
As a result of global efforts to reduce greenhousegas emissions, future energy system designs must be investigated. However, previous studies in integrated generation and transmission expansion planning neglect indirect emissions and there…
View article: Generation and Transmission Expansion Planning With Respect to Global Warming Potential
Generation and Transmission Expansion Planning With Respect to Global Warming Potential Open
As a result of global efforts to reduce greenhousegas emissions, future energy system designs must be investigated. However, previous studies in integrated generation and transmission expansion planning neglect indirect emissions and there…
View article: Requirements for Integrated Planning of Multi-Energy Systems
Requirements for Integrated Planning of Multi-Energy Systems Open
The successful realization of the climate goals agreed upon in the European Union’s COP21 commitments makes a fundamental change of the European energy system necessary. In particular, for a reduction of greenhouse gas emissions over 80%, …
View article: Requirements for Integrated Planning of Multi-Energy Systems
Requirements for Integrated Planning of Multi-Energy Systems Open
The successful realization of the climate goals agreed upon in the European Union’s COP21 commitments makes a fundamental change of the European energy system necessary. In particular, for a reduction of greenhouse gas emissions over 80%, …
View article: Investigating the Converter-Driven Stability of an Offshore HVDC System
Investigating the Converter-Driven Stability of an Offshore HVDC System Open
Offshore wind farms are increasingly built in the North Sea and the number of HVDC systems transmitting the wind power to shore increases as well. To connect offshore wind farms to adjacent AC transmission systems, onshore and offshore mod…