Search Results for author: Dirk Van Hertem

Found 18 papers, 5 papers with code

Stochastic flexibility needs assessment: learnings from H2020 EUniversal's German demonstration

no code implementations20 Nov 2023 Md Umar Hashmi, Simon Nagels, Dirk Van Hertem

Operational flexibility needs assessment (FNA) is crucial for system operators to plan/procure flexible resources in order to avoid probable network issues.

Smart Energy Network Digital Twins: Findings from a UK-Based Demonstrator Project

1 code implementation20 Nov 2023 Matthew Deakin, Marta Vanin, Zhong Fan, Dirk Van Hertem

Power meter data and a network model are shown to be necessary for developing algorithms that enable decision-making that is robust to real-world uncertainties, with possibilities and challenges of Digital Twin development clearly demonstrated.

Decision Making

Data quality challenges in existing distribution network datasets

no code implementations1 Aug 2023 Frederik Geth, Marta Vanin, Dirk Van Hertem

Existing digital distribution network models, like those in the databases of network utilities, are known to contain erroneous or untrustworthy information.

Robust dynamic operating envelopes for flexibility operation using only local voltage measurement

no code implementations22 May 2023 Md Umar Hashmi, Dirk Van Hertem

With growing intermittency and uncertainty in distribution networks around the world, ensuring operational integrity is becoming challenging.

Exact Modeling of Non-Gaussian Measurement Uncertainty in Distribution System State Estimation

1 code implementation6 Mar 2023 Marta Vanin, Tom Van Acker, Reinhilde D'hulst, Dirk Van Hertem

State estimation allows to monitor power networks, exploiting field measurements to derive the most likely grid state.

Consensus based phase connectivity identification for distribution network with limited observability

no code implementations10 Jan 2023 Md Umar Hashmi, David Brummund, Rickard Lundholm, Arpan Koirala, Dirk Van Hertem

The phase identification framework based on consensus algorithms for DN zones is scalable for large DN and robust towards measurement errors as the estimation is not dependent on a single measurement point.

energy management

Optimal Grid Layouts for Hybrid Offshore Assets in the North Sea under Different Market Designs

no code implementations3 Jan 2023 Stephen Hardy, Andreas Themelis, Kaoru Yamamoto, Hakan Ergun, Dirk Van Hertem

To this end a multi-period, stochastic GATE planning formulation is developed for both nodal and zonal market designs.

Unbalanced OPF Modelling for Mixed Monopolar and Bipolar HVDC Grid Configurations

no code implementations11 Nov 2022 Chandra Kant Jat, Jay Dave, Dirk Van Hertem, Hakan Ergun

Bipolar HVDC grids can be operated in an unbalanced way during single pole outages or in form of mixed monopolar and bipolar grids.

Combined Unbalanced Distribution System State and Line Impedance Matrix Estimation

no code implementations22 Sep 2022 Marta Vanin, Frederik Geth, Reinhilde D'hulst, Dirk Van Hertem

To address the challenges that the decarbonization of the energy sector is bringing about, advanced distribution network management and operation strategies are being developed.

Management Time Series +1

Chance constrained day-ahead robust flexibility needs assessment for low voltage distribution network

no code implementations21 Jul 2022 Md Umar Hashmi, Arpan Koirala, Hakan Ergun, Dirk Van Hertem

A framework is required to avoid over or under procurement of flexibility in the presence of uncertainty.

Can locational disparity of prosumer energy optimization due to inverter rules be limited?

no code implementations21 Jul 2022 Md Umar Hashmi, Deepjyoti Deka, Ana Bušić, Dirk Van Hertem

To mitigate issues related to the growth of variable smart loads and distributed generation, distribution system operators (DSO) now make it binding for prosumers with inverters to operate under pre-set rules.

energy management Management

Perspectives on distribution network flexible and curtailable resource activation and needs assessment

no code implementations21 Jul 2022 Md Umar Hashmi, Arpan Koirala, Hakan Ergun, Dirk Van Hertem

{A curtailable and flexible resource activation framework for solving distribution network (DN) voltage and thermal congestions is used to quantify three important aspects with respect to modelling low voltage networks.}

Phase Identification of Distribution System Users Through a MILP Extension of State Estimation

2 code implementations16 Jun 2022 Marta Vanin, Tom Van Acker, Reinhilde D'hulst, Dirk Van Hertem

To address the challenges and exploit the opportunities that the decarbonization of the energy sector is bringing about, advanced distribution network management and operation strategies are being developed.

Management

Flexible and curtailable resource activation in three-phase unbalanced distribution networks

no code implementations16 May 2022 Md Umar Hashmi, Arpan Koirala, Hakan Ergun, Dirk Van Hertem

In this work, we propose a network-state driven framework that distribution system operators (DSOs) can utilize for activating flexible and curtailable resources for alleviating network voltage and thermal issues, while accounting for network voltage and current imbalances.

Congestion Mitigation in Unbalanced Residential Networks with OPF-based Demand Management

no code implementations20 Apr 2022 Marta Vanin, Tom Van Acker, Hakan Ergun, Reinhilde D'hulst, Koen Vanthournout, Dirk Van Hertem

From a planning perspective, the results can help the system operator define contractual terms that make a specific congestion mitigation scheme effective and viable.

Management

Low Voltage Customer Phase Identification Methods Based on Smart Meter Data

1 code implementation13 Apr 2022 Alexander Hoogsteyn, Marta Vanin, Arpan Koirala, Dirk Van Hertem

If power data is available too, the novel ensemble method can improve the accuracy of the phase identification obtained from voltage data alone.

Ensemble Learning Management

Evaluation of voltage magnitude based unbalance metric for low voltage distribution networks

no code implementations19 Feb 2022 Md Umar Hashmi, Arpan Koirala, Rickard Lundholm, Hakan Ergun, Dirk Van Hertem

We observe that phase magnitude-based unbalance metrics reasonably approximate the true unbalance for higher R/X ratios with a varying load power factor in a DN.

A framework for constrained static state estimation in unbalanced distribution networks

3 code implementations23 Nov 2020 Marta Vanin, Tom Van Acker, Reinhilde D'hulst, Dirk Van Hertem

State estimation plays a key role in the transition from the passive to the active operation of distribution systems, as it allows to monitor these networks and, successively, to perform control actions.

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