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Detection of Oscillatory Modes in Power Systems using Empirical Wavelet Transform

In electric power systems, detecting inter-area oscillations is crucial to the system operators for maintaining the security of the grid -- especially in the case of unstable oscillatory behaviour. However, extracting information from unstable, …

Microgrid Operational Optimization with Dynamic Voltage Security Constraints

Emergency islanding of a microgrid (MG) can be vital in ensuring continuity of power supply to a local network during major contingencies in the main grid. However, such an event will inadvertently cause large voltage transients except in the trivial …

Primary Frequency Control Provision by Distributed Energy Resources in Active Distribution Networks

The rising share of renewable energy sources in electricity grids has strongly impacted the operation of both transmission and distribution systems. With the decommissioning of synchronous generators, the transmission systems are becoming less …

Comparison of Optimal Power Flow Formulations in Active Distribution Grids

Active Distribution Networks (DNs) are expected to host an increasing number of Distributed Generators (DGs) and other Distributed Energy Resources (DERs), offering new flexible sources and enabling the provision of ancillary services to system …

Towards a Sustainable Microgrid on Alderney Island Using a Python-based Energy Planning Tool

In remote or islanded communities, the use of microgrids (MGs) is necessary to ensure electrification and resilience of supply. However, even in small-scale systems, it is computationally and mathematically challenging to design low-cost, optimal, …

Enhancing Microgrid Resilience and Survivability under Static and Dynamic Islanding Constraints

Microgrids (MGs) are characterised by reduced inertia that can lead to large transients after an islanding event. These transients can result in cascaded device disconnections triggered by protections and consequently to major loss of load or MG …

Enhanced MPC for Fast Frequency Control in Inverter-Dominated Power Systems

Due to the rising shares of renewable energy sources, future power systems are facing significant changes in control complexity and system inertia, thus making frequency regulation in power systems more challenging. This paper proposes a novel …

A Data-Driven Two-Stage Distributionally Robust Planning Tool for Sustainable Microgrids

This paper presents a data-driven two-stage distributionally robust planning tool for sustainable microgrids under the uncertainty of load and power generation of renewable energy sources (RES) during the planning horizon. In the proposed two-stage …

Rethinking Consumer-Centric Markets Under Uncertainty: A Robust Approach to Community-Based Energy Trades

The flexibility of the end users in the electricity markets is becoming more pertinent with the evolution of market mechanisms allowing consumers to participate actively. The advent of Distributed Energy Resources (DERs) and energy storage systems is …

A Combined High-, Medium-, and Low-Voltage Test System for Stability Studies with DERs

Future scenarios with high penetration of Distributed Energy Resources (DERs) call out for detailed network modelling at all voltage levels. The challenges of building a network model that is realistic at both the transmission and distribution levels …