A5019883283- Smart Grid Energy Management
- Microgrid Control and Optimization
- Power System Optimization and Stability
- Frequency Control in Power Systems
- Islanding Detection in Power Systems
- Advanced Battery Technologies Research
- Optimal Power Flow Distribution
- Power System Reliability and Maintenance
- Experimental Learning in Engineering
- Hybrid Renewable Energy Systems
- HVDC Systems and Fault Protection
- Smart Grid Security and Resilience
- Engineering Education and Curriculum Development
- Evaluation of Teaching Practices
- Power Systems Fault Detection
- Energy Efficiency and Management
- Electric Vehicles and Infrastructure
- COVID-19 impact on air quality
- Real-time simulation and control systems
- Innovation Diffusion and Forecasting
- Electric Power System Optimization
- Energy Load and Power Forecasting
- Solar Radiation and Photovoltaics
- Consumer Retail Behavior Studies
- Machine Fault Diagnosis Techniques
University of Calgary
2022-2023
University of Waterloo
2014-2019
KTH Royal Institute of Technology
2012-2013
This document is a summary of report prepared by the IEEE PES Task Force (TF) on Microgrid Stability Definitions, Analysis, and Modeling, Power Energy Society, Piscataway, NJ, USA, Tech. Rep. PES-TR66, Apr. 2018, which defines concepts identifies relevant issues related to stability in microgrids. In this paper, definitions classification microgrid are presented discussed, considering pertinent features such as voltage-frequency dependence, unbalancing, low inertia, generation intermittency....
With the increasing importance of battery energy storage systems (BESS) in microgrids, accurate modeling plays a key role understanding their behavior. This paper investigates and compares performance BESS models with different depths detail. Specifically, several are examined: an average model represented by voltage sources; ideal dc source behind converter; back-to-back buck/boost bidirectional three-phase converter, all sharing same control system parameters; two additional proposed where...
This paper presents a frequency control mechanism for an isolated/islanded microgrid through voltage regulation. The proposed scheme makes use of the load sensitivity to operating voltages and can be easily adopted various types isolated microgrids. controller offers advantages, such as allowing integration significant levels intermittent renewable resources in microgrids without need large energy storage systems, providing fast smooth regulation with no steady-state error, regardless...
Driven by global environmental emission issues, energy access in remote communities, and tighter requirements for system resilience reliability, electricity production is shifting from a centralized paradigm to decentralized one. In this context, renewable sources (RESs) have proliferated over the past decade, exhibiting steadily increasing trend. Thus, today, large number of wind turbines photovoltaic (PV) panels are connected medium- (1-69 kV) low-voltage (=1 grids, with traditional...
The COVID-19 related shutdowns have made significant impacts on the electric grid operation worldwide. global electrical demand plummeted around planet in 2020 continuing into 2021. Moreover, shape has been profoundly altered as a result of industry shutdowns, business closures, and people working from home. In view such massive changes, energy forecasting systems struggle to provide an accurate prediction, exposing operators technical financial risks, further reinforcing adverse economic...
This paper presents a mathematical model of frequency control in isolated microgrids, which is integrated into the Unit Commitment (UC) problem. In conventional UC formulations, power outputs are considered fixed between two periods, yielding staircase pattern with respect to energy balance generation and demand for typical dispatch time horizon (e.g., 24 h). However, practice units that participate may see change their output within single interval 5 min), depending on changes and/or...
This paper compares the performance of different droop-based control techniques in an islanded microgrid that operates solely on electronically interfaced distributed energy resources (DERs). Specifically, following are compared: conventional including a full pulse width modulating (PWM)-based voltage source converter (VSC) with power, and current controls; adaptive decentralized droop controls built upon extra feedback loops; angle operate based drooping power instead frequency; proposed...
This paper presents a novel voltage-based controller for frequency control in inverter-based isolated microgrids through load voltage regulation. The proposed controller, described here detail, makes use of the sensitivity to operating regulate consumption. performance is evaluated and validated simulation studies on PSCAD/EMTDC based medium distribution network benchmark. offers two significant advantages: it decreases system dependency energy storage systems, allows higher penetration...
This article provides a review of the current openly available works in field topology processing. The most important this area are critically scrutinized, and their limitations identified. drawbacks identified fully discussed, effect on output processor is investigated. To support discussion, IEEE Reliability Test System 1996 simulated real-time to show deficiencies with that uses PMU data. simulation performed using an eMegaSim Opal-RT simulator which part "SmarTS Lab" at KTH Royal...
Individuals perceive their environment in terms of individual mental structures that turn determine attitudes toward environment. This is the focus personal construct theory (PCT), which states experiences are meaningful only relation to way they "constructed." Within higher education system, "constructs" developed by students learning and used judge or evaluate experiences. To reveal constructs students, a structured interview methodology known as repertory grid technique can be used. In...
This article provides a robust network topology processor for state estimators that utilizes both conventional and/or PMU measurements. The emphasis is on the involvement of measurements in processing. Building top art, an algorithm proposed way to cover limitations current approaches and at same time suggest new features. was coded MATLAB tested using modified version IEEE Reliability Test System 1996. intended provide topologies PMU-only sate estimators, so test system simulated real-time...
This article develops three different hydro turbine and governor (HTG) models to fulfill adequate modeling requirements for the representation of power generation in Nordic grid. To validate performance developed models, both off-line real-time simulation studies on a singlemachine infinite-bus (SMIB) system are carried out. Apart from SMIB system, simulations also executed larger scale - IEEE Reliability Test System 1996 (IEEE RTS 96) this determine models' dynamic more complex networks. In...
This paper presents a systematic control synthesis framework for an optimal voltage-based frequency (VFC) in islanded/isolated microgrids. The problem of is formulated as ${\mathcal{H}_\infty }$ controller the linearized microgrid model. validity model-reduction steps which feeders are neglected discussed, and various centralized/decentralized architectures investigated. Multiple simulation studies performed MATLAB/Simulink to test compare performances system. Simulation results confirm...
In this paper, we propose an optimal sizing model for a solar plus energy storage (PV-ESS) system behind the meter applications. A dynamic optimization algorithm is proposed that maximizes net worth of project; method can account decreasing technology costs in future and defer some investment costs. Two kinds uncertainties are considered mitigated according to their frequency occurrence forecast accuracy. The decomposed structured such way it be efficiently solved using parallel computation....
AbstractThis article presents the implementation of constructive alignment theory (CAT) in a power system analysis course through consensus-based design process. The process involves both instructor and graduate-level students it aims to develop CAT framework holistic manner with goal including different perceptions. considerations required implement this approach are described detail. To examine effect approach, three evaluations were conducted by querying during stages course. These show...
The adoption of Electric Vehicles (EVs) and solar Photovoltaic (PV) generation by households is rapidly significantly increasing. Utilities are facing the challenge efficiently managing EV PV resources to help mitigate undesirable effects on grid operation. Existing approaches solve these issues depend accurate but hard predict behavior EVs PVs, detailed knowledge customers, infrastructure, all which complicate effective deployment resources. Motivated practical challenges in collaboration...
This paper presents a theoretical interpretation and explores possible improvements of widely adopted rule-based control for residential solar photovoltaics (PV) paired with battery storage systems (BSS). The method is referred to as Occam's in this paper, given its simplicity tribute the 14th-century William Ockham. Using self-consumption-maximization application, it proven that special case larger category optimization methods called online convex learning. Thus, first time, upper bound...
This article presents a consensus-based course design process which considers the implementation of constructive alignment theory (CAT) in power system analysis course. A new concept for uses consensus decision-making involving different stakeholders learning is exposed, and considerations required to implement this approach are described. To examine effect approach, three evaluations were conducted by querying students during stages These show that most find benefit their CAT within design....