Online optimization in power systems with high penetration of renewable generation: Advances and prospects

Z Wang, W Wei, JZF Pang, F Liu, B Yang… - IEEE/CAA Journal of …, 2023‏ - ieeexplore.ieee.org
Traditionally, offline optimization of power systems is acceptable due to the largely
predictable loads and reliable generation. The increasing penetration of fluctuating …

Sustained Oscillations in Modern AC Distribution Systems with high DER Infiltration

M Alizadeh, X Wang, L Chen, A Nassif… - … on Power Systems, 2024‏ - ieeexplore.ieee.org
Sustained oscillations persist without decay, impacting system stability and performance.
Sustained oscillations in distribution systems exhibit unique mechanisms compared to those …

[HTML][HTML] Power control of hybrid grid-connected renewable energy system using machine learning

M Karthikeyan, D Manimegalai - Energy Reports, 2024‏ - Elsevier
This article addresses the crucial challenge of maintaining a reliable power supply in
integrated electric systems that combine solar power and energy storage. It focuses on …

Root Cause Analysis of Frequency Oscillations Observed in Ontario's Distribution System

M Alizadeh, X Wang - IEEE Transactions on Power Systems, 2025‏ - ieeexplore.ieee.org
Recurrent frequency oscillations have been observed in Ontario's distribution system,
initially misinterpreted as mains loss by the rate of change of frequency relay, resulting in 16 …

The clearing strategy of primary frequency control ancillary services market from the point of view ISO in the presence of synchronous generations and virtual power …

S Ranginkaman, E Mashhour, M Saniei - Sustainable Energy, Grids and …, 2024‏ - Elsevier
Since the increase in penetration of renewable energy sources connected to the system
reduces the inertia of power systems, the penetration of these sources leads to increase in …

A distributed scheme for secondary frequency control with stability guarantees and optimal power allocation

A Kasis, N Monshizadeh, I Lestas - Systems & Control Letters, 2020‏ - Elsevier
We consider the problem of distributed secondary frequency regulation in power networks
such that stability and an optimal power allocation are guaranteed. This is a problem that …

Stability of power networks with time-varying inertia

A Kasis, S Timotheou… - 2021 60th IEEE …, 2021‏ - ieeexplore.ieee.org
A major transition in modern power systems is the replacement of conventional generation
units with renewable sources of energy. The latter results in lower rotational inertia which …

Optimal secondary frequency regulation with on-off loads in power networks

A Kasis, S Timotheou… - IEEE Transactions on …, 2022‏ - ieeexplore.ieee.org
Load-side participation can provide support to the power network by appropriately adapting
the demand when required. In addition, it enables an economically improved power …

Frequency regulation with thermostatically controlled loads: Aggregation of dynamics and synchronization

A Kasis, I Lestas - IEEE Transactions on Automatic Control, 2021‏ - ieeexplore.ieee.org
Thermostatically controlled loads (TCLs) can provide ancillary services to the power network
by aiding existing frequency-control mechanisms. TCLs are, however, characterized by an …

Control and optimization of modern power networks: hybrid AC/DC networks and inverter-based microgrids

J Watson - 2021‏ - repository.cam.ac.uk
Electrical power is essential to modern society, and is necessary for innumerable
applications from lighting, heating, household appliances, to large-scale machinery …