Search Results for author: Md Umar Hashmi

Found 11 papers, 0 papers with code

Impact of Dynamic Operating Envelopes on Distribution Network Hosting Capacity for Electric Vehicles

no code implementations27 Apr 2024 Hossein Fani, Md Umar Hashmi, Emilio J. Palacios-Garcia, Geert Deconinck

While DOEs improve the hosting capacity of the DN for EVs (EV-HC) by restricting the operational parameters of the network, they also alter the amount of energy needed for charging each EV, resulting in a decrease in the quality of service (QoS).

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.

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.

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 Operation of HVDC Interconnector: Irish Case

no code implementations6 Aug 2022 Md Umar Hashmi

We propose a profit maximization modelling which considers the line losses and price difference in these different electricity markets and identifies the optimal import/export of power using HVDC interconnectors.

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.}

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

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.

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.

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.

Impact of subsidy on profitability of residential photovoltaics, battery and inverter in Flanders

no code implementations17 Nov 2021 Md Umar Hashmi, Mohammed Meraj Alam

The recent subsidies in Flanders for photovoltaic (PV) and battery are used to calculate the payback period on prosumer investment in residential PV, battery and inverter installations.

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