144 citations · 820 across the 81 of their papers we have counts for
33 papers · 1 filter
Distributed coordination for transmission-distribution systems with nonlinear flexibility aggregation
Xinliang Dai, Yanlin Jiang, Frederik Zahn +2
High shares of distributed energy resources (DERs) transform distribution systems into active participants in integrated transmission and distribution (ITD) operations. Linear mode…
Real-world energy data of 200 feeders from low-voltage grids with metadata in Germany over two years
Manuel Treutlein, Pascal Bothe, Marc Schmidt +4
The last mile of the distribution grid is crucial for a successful energy transition, as more low-carbon technology like photovoltaic systems, heat pumps, and electric vehicle char…
ComEMS4Build: Comfort-Oriented Energy Management System for Residential Buildings using Hydrogen for Seasonal Storage
Jovana Kovačević, Felix Langner, Erfan Tajalli-Ardekani +6
Integrating flexible loads and storage systems into the residential sector contributes to the alignment of volatile renewable generation with demand. Besides batteries serving as a…
A TSO-DSO Coordination Framework via Analytical Representation and Monetization of PQV-Based Distribution System Flexibility
Burak Dindar, Can Berk Saner, Hüseyin Kemal Çakmak +1
As the role of distribution system (DS) flexibility in transmission system operator (TSO) network management becomes increasingly vital, data privacy concerns hinder seamless inter…
Error Accumulation using Linearized Models for Aggregating Flexibility in Distribution Systems
Yanlin Jiang, Xinliang Dai, Frederik Zahn +2
This paper investigates flexibility aggregation approaches based on linear models. We begin by examining the theoretical foundations of linear AC power flow, two variants of so-cal…
Hardware test and validation of the angular droop control: Analysis and experiments
Taouba Jouini, Jan Wachter, Sophie An +1
We present a hardware-based validation of angular droop control for grid-forming DC/AC converters, a control strategy that establishes active power-to-angle droop. Angular droop co…
Enhanced Flexibility Aggregation Using LinDistFlow Model with Loss Compensation
Yanlin Jiang, Xinliang Dai, Frederik Zahn +1
With the increasing integration of renewable energy resources and the growing need for data privacy between system operators, flexibility aggregation methods have emerged as a prom…
Economy and sustainability analysis with a novel modular configurable multi-modal white-box building model
Haozhen Cheng, Veit Hagenmeyer, Hüseyin K. Çakmak
This paper presents a novel modeling approach for building performance simulation, characterized as a white-box model with a high degree of modularity and flexibility, enabling dir…
Privacy-Preserving Utilization of Distribution System Flexibility for Enhanced TSO-DSO Interoperability: A Novel Machine Learning-Based Optimal Power Flow Approach
Burak Dindar, Can Berk Saner, Hüseyin K. Çakmak +1
Due to the transformation of the power system, the effective use of flexibility from the distribution system (DS) is becoming crucial for efficient network management. Leveraging t…
New Co-Simulation Variants for Emissions and Cost Reduction of Sustainable District Heating Planning
Haozhen Cheng, Verena Buccoliero, Alexander Kocher +2
Classical heating of residential areas is very energy-intensive, so alternatives are needed, including renewable energies and advanced heating technologies. Thus, the present paper…
Construction and Control of Validated Highly Configurable Multi-Physics Building Models for Multi-Energy System Analysis in a Co-Simulation Setup
Haozhen Cheng, Jan Stock, André Xhonneux +2
Improving energy efficiency by monitoring system behavior and predicting future energy scenarios in light of increased penetration of renewable energy sources are becoming increasi…
Hardware-Based Microgrid Coupled to Real-Time Simulated Power Grids for Evaluating New Control Strategies in Future Energy Systems
Michael Kyesswa, Friedrich Wiegel, Jan Wachter +3
The design of new control strategies for future energy systems can neither be directly tested in real power grids nor be evaluated based on only current grid situations. In this re…
Industrial Application of the Shapley value-based Redispatch Cost Allocation to Large-Scale Power Grids requires AC Optimal Power Flow
Rebecca Bauer, Xinliang Dai, Veit Hagenmeyer
A burgeoning topic in the current energy transition are the huge costs of redispatch congestion management (CM) in large transmission systems. One of the German transmission system…
Impact and Integration of Mini Photovoltaic Systems on Electric Power Distribution Grids
Gökhan Demirel, Simon Grafenhorst, Kevin Förderer +1
This work analyzes the impact of varying concentrations mini-photovoltaic (MPV) systems, often referred to as balcony power plants, on the stability and control of the low-voltage…
Non-standard power grid frequency statistics in Asia, Australia, and Europe
Xinyi Wen, Mehrnaz Anvari, Leonardo Rydin Gorjao +3
The power-grid frequency reflects the balance between electricity supply and demand. Measuring the frequency and its variations allows monitoring of the power balance in the system…
Advancing Distributed AC Optimal Power Flow for Integrated Transmission-Distribution Systems
Xinliang Dai, Junyi Zhai, Yuning Jiang +3
This paper introduces a distributed operational solution for coordinating integrated transmission-distribution (ITD) systems regarding data privacy. To tackle the nonconvex challen…
Regulatory Changes in Power Systems Explored with Explainable Artificial Intelligence
Sebatian Pütz, Johannes Kruse, Dirk Witthaut +2
A stable supply of electrical energy is essential for the functioning of our society. Therefore, the electrical power grid's operation and energy and balancing markets are subject…
Occupant-Oriented Demand Response with Multi-Zone Thermal Building Control
Moritz Frahm, Thomas Dengiz, Philipp Zwickel +3
In future energy systems with high shares of renewable energy sources, the electricity demand of buildings has to react to the fluctuating electricity generation in view of stabili…
Analytical Uncertainty Propagation for Multi-Period Stochastic Optimal Power Flow
Rebecca Bauer, Tillmann Mühlpfordt, Nicole Ludwig +1
The increase in renewable energy sources (RESs), like wind or solar power, results in growinguncertainty also in transmission grids. This affects grid stability through fluctuating…
Analytical Uncertainty Propagation for Multi-Period Stochastic Optimal Power Flow
Rebecca Bauer, Tillmann Mühlpfordt, Nicole Ludwig +1
The increase in renewable energy sources (RESs), like wind or solar power, results in growing uncertainty also in transmission grids. This affects grid stability through fluctuatin…
Rapid Scalable Distributed Power Flow with Open-Source Implementation
Xinliang Dai, Yichen Cai, Yuning Jiang +1
This paper introduces a new method for solving the distributed AC power flow (PF) problem by further exploiting the problem formulation. We propose a new variant of the ALADIN algo…
What ODE-Approximation Schemes of Time-Delay Systems Reveal about Lyapunov-Krasovskii Functionals
Tessina H. Scholl, Veit Hagenmeyer, Lutz Gröll
The article proposes an approach to complete-type and related Lyapunov-Krasovskii functionals that neither requires knowledge of the delay-Lyapunov matrix function nor does it invo…
Database of Power Grid Frequency Measurements
Richard Jumar, Heiko Maaß, Benjamin Schäfer +2
The transformation of the electrical energy system attracts much attention in diverse research communities. Novel approaches for modeling, control, and power grid architectures are…
PolyChaos.jl -- A Julia Package for Polynomial Chaos in Systems and Control
Tillmann Mühlpfordt, Frederik Zahn, Veit Hagenmeyer +1
Polynomial chaos expansion (PCE) is an increasingly popular technique for uncertainty propagation and quantification in systems and control. Based on the theory of Hilbert spaces a…