Volkan Kumtepeli

ORCID: 0000-0003-2392-9771
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Research Areas
  • Advanced Battery Technologies Research
  • Microgrid Control and Optimization
  • Smart Grid Energy Management
  • Electric Vehicles and Infrastructure
  • Energy and Environment Impacts
  • Frequency Control in Power Systems
  • Power Systems and Renewable Energy
  • Advancements in Battery Materials
  • Vehicle Dynamics and Control Systems
  • Time Series Analysis and Forecasting
  • Islanding Detection in Power Systems
  • Aerospace and Aviation Technology
  • Data Management and Algorithms
  • Injection Molding Process and Properties
  • Nanomaterials and Printing Technologies
  • Climate Change Policy and Economics
  • Optimal Power Flow Distribution
  • Advanced Battery Materials and Technologies
  • Photovoltaic System Optimization Techniques
  • Fluid Dynamics and Thin Films
  • Real-time simulation and control systems
  • Analytical Chemistry and Sensors
  • Complex Systems and Time Series Analysis
  • Conducting polymers and applications
  • Advanced Database Systems and Queries

University of Oxford
2022-2024

Science Oxford
2022-2024

Nanyang Technological University
2016-2021

To achieve maximum profit by dispatching a battery storage system in an arbitrage operation, multiple factors must be considered. While revenue from the application is determined time variability of electricity cost, will lowered costs resulting energy efficiency losses, as well degradation. In this paper, optimal dispatch strategy proposed for systems trading on markets. The based computationally-efficient implementation mixed-integer linear programming method, with cost function that...

10.3390/en12060999 article EN cc-by Energies 2019-03-14

10.1016/j.joule.2022.09.014 article EN publisher-specific-oa Joule 2022-10-01

The rapid increase of renewable energy sources made coordinated control the distributed and intermittent generation units a more demanded task. Matching demand supply is particularly challenging in islanded microgrids. In this study, we have demonstrated mixed-integer quadratic programming (MIQP) method to achieve efficient use within an microgrid. A unique objective function involving fuel consumption diesel generator, degradation lithium-ion battery storage system, carbon emissions, load...

10.1002/er.4512 article EN International Journal of Energy Research 2019-06-03

Solar home systems provide low-cost electricity access for rural off-grid communities. As to them increases, more long-term data becomes available on how these are used throughout their lifetime. This work analyses a dataset of 1,000 across sub-Saharan Africa. Dynamic time warping clustering was applied the load demand from systems, identifying five distinct archetypal daily profiles and occurrence dataset. Temporal analysis reveals general decline in energy consumption over time, with 57%...

10.48550/arxiv.2502.14630 preprint EN arXiv (Cornell University) 2025-02-20

Dispatch of battery storage systems for stationary grid applications is a topic increasing interest: due to the volatility power system's energy supply relying on variable renewable sources, one foresees rising demand and market potential both short- long-term fluctuation smoothing via storage. While revenue attainable arbitrage trading may yet surpass steadily declining cost lithium-ion systems, profitability will be constrained directly by limited lifetime system lowered dissipation losses...

10.1109/access.2020.3035504 article EN cc-by IEEE Access 2020-01-01

Increasing power consumption requires engineers to find better control techniques increase energy efficiency. Advancements in technology allows us use more complex algorithms pursue this goal. Load frequency (LFC) is one of the vital points system and a state art method must be used ensure quality grid. In work, decentralized model predictive controller (MPC) with generation rate constraints handle LFC problem four area interconnected system. It seen that MPC successfully achieved given...

10.1109/acept.2016.7811530 article EN 2016-10-01

With the recent developments in unmanned aerial vehicles (UAV), it is expected them to interact and collaborate with their surrounding objects, other robots people order wisely plan execute particular tasks. Although these interaction operations are inherently challenging as compared free-flight missions, they might bring diverse advantages. One of basic aerodynamic during flight close proximities which can result a reduction controller effort. In this study, by collecting real-time data, we...

10.1109/icoias.2019.00041 article EN 2019-02-01

Enhancing transportation efficiency is the preeminent place to start efforts minimize emissions of carbon dioxide which a crucial malefactor in global warming. Due awe-inspiring advantages over vehicles with internal combustion engines, use electric (EVs) finds application variety areas. However, energy storage system (ESS) EV plays an important role EV's performance and can be limiting factor its utilization. To mitigate problems arise from ESSs, different equipment combined into integrated...

10.1109/acept.2016.7811505 article EN 2016-10-01

Nanoparticle-laden sessile droplet drying has a wide impact on applications. However, the complexity affected by evaporation dynamics and particle self-assembly behavior leads to challenges in accurate prediction of patterns. We initiate data-driven machine learning algorithm using single data collection point via top-view camera predict transient patterns aluminum oxide (Al2O3) nanoparticle-laden droplets with three cases according sizes 5 40 nm Al2O3 concentrations 0.1 0.2 wt %. Dynamic...

10.1021/acs.langmuir.0c03546 article EN Langmuir 2021-02-12

ABSTRACT Grid-scale electricity storage will play a crucial role in the transition of power systems towards zero carbon. During transition, investments need to be channeled technologies and locations that enable carbon operation long term, while also delivering security supply value for money. We discuss metrics market signals are needed guide this clean, secure affordable solutions. Paradoxically, an important role, but become less effective as decision tool once system approaches...

10.1093/ooenergy/oiad008 article EN cc-by Oxford Open Energy 2023-01-01

We present an approach for computationally efficient dynamic time warping (DTW) and clustering of time-series data. The method frames the series datasets as optimisation problem solved using programming, then clusters data by solving a second mixed-integer programming (MIP). There is also option to use k-medoids increased speed, when certificate global optimality not essential. improved efficiency our due task-level parallelisation alongside DTW. Our was tested UCR Time Series Archive, found...

10.48550/arxiv.2307.04904 preprint EN other-oa arXiv (Cornell University) 2023-01-01

Solar home systems (SHS) provide low-cost electricity access for rural off-grid communities. Batteries are a crucial part of the system, however they often first point failure due to shorter lifetimes. Using field data, this work models degradation lead-acid batteries different SHS use-cases, finding dominant ageing mechanisms in each case. Corrosion is all cases apart from highest use This caused by extended time at high state charge (SOC) and hence voltage. A new voltage control scheme...

10.1109/powerafrica57932.2023.10363281 article EN 2022 IEEE PES/IAS PowerAfrica 2023-11-06

In today's world, where the grid structure becomes smarter day by day, microgrid, one of fundamental methods for integration renewable energy, are taking firm steps to be building blocks modern electrical grid. Along with its advantages, microgrid brings extra challenges which attracts attention many researchers in these days. This paper focuses on addressing two main challenges: voltage stability and reactive power sharing islanded mode. Contents this include: first, elaboration general...

10.1109/isgt-asia.2018.8467882 article EN 2018-05-01

Dispatch of a grid energy storage system for arbitrage is typically formulated into rolling-horizon optimization problem that includes battery aging model within the cost function. Quantifying degradation as depreciation in objective can increase overall profits by extending lifetime. However, just proxy metric aging; it used because simulating entire life challenging due to computational complexity and absence decades future data. In cases where does not match loss possible revenue,...

10.48550/arxiv.2403.10617 preprint EN arXiv (Cornell University) 2024-03-15

Grid energy storage can help to balance supply and demand, but its financial viability operational carbon emissions impact is poorly understood because of the complexity grid constraints market outcomes. We analyse several technologies (Li-ion flow batteries, pumped hydro, hydrogen) on Great Britain balancing mechanism, main for supply-demand congestion management. find that, many locations technologies, financially optimal operation result in higher emissions. For example, extra associated...

10.48550/arxiv.2410.07740 preprint EN arXiv (Cornell University) 2024-10-10

Solar home systems (SHS) provide low-cost electricity access for rural off-grid communities. Batteries are a crucial part of the system, however they often first point failure due to shorter lifetimes. Using field data, this work models degradation lead-acid batteries different SHS use-cases, finding dominant ageing mechanisms in each case. Corrosion is all cases apart from highest use This caused by extended time at high state charge (SOC) and hence voltage. A new voltage control scheme...

10.48550/arxiv.2311.14098 preprint EN other-oa arXiv (Cornell University) 2023-01-01

With the recent developments in unmanned aerial vehicles (UAV), it is expected them to interact and collaborate with their surrounding objects, other robots people order wisely plan execute particular tasks. Although these interaction operations are inherently challenging as compared free-flight missions, they might bring diverse advantages. One of basic aerodynamic during flight close proximities which can result a reduction controller effort. In this study, by collecting real-time data, we...

10.48550/arxiv.1812.11707 preprint EN other-oa arXiv (Cornell University) 2018-01-01
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