Dynamic rating with applications to renewable energy swegrids-logo

SweGRIDS research area Flexible Power Systems
SweGRIDS project code FPS18
Project type PhD
Status completed
Researcher Kateryna Morozovska   (webpage)
University KTH (EME)
Project period 2016- to 2020-10-31    project migrated from other funding, 2018-07
Project supervisor Patrik Hilber   (webpage)
Industrial sponsors E.ON


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Project abstract

The sustainable energy generation and efficient usage of materials are important for the development of modern society. Increasing share of renewable power generation units brings additional challenges for planning of power network, together with the challenges come new, more effective ways of utilization of power devices. In the traditional grids power transmission components are selected in order to satisfy high reliability criteria, with less consideration about efficient utilization of those components. In other words, power transmission components are mostly overrated in order to ensure high safety and availability of the system even under extreme conditions. Extreme conditions are mainly associated with extreme weather, such as high ambient temperatures and little to no wind, since the surrounding weather plays important role in the heat balance of power components.

The capacity of power devices is mostly highly dependent on the heat transfer properties of the materials, which the devices are made of. To ensure correct power limits of the equipment, one must take into consideration not only the power load, but also ambient conditions, such as: temperature, wind speed, wind direction, solar irradiation, humidity, pressure, radiation into the atmosphere and magnetic losses. Dynamic Rating (DR) is a method of unlocking the capacity of power components using available information on weather conditions.

Dynamic rating is created as an alternative to standard constant rating that is designed with reference to extreme weather and load conditions. Some areas are more likely than others to experience extreme weather conditions, which have a chance of occurring only a few days per year for short periods of time. Such a distribution of weather parameters gives an opportunity to embed existing material properties of the power equipment and achieve a better utilization of the grid.


Summary of work

This project targets improving usage of power transformers and power lines by implementing dynamic rating. The main focus of the project is on exploring potential ways to connect power generated from wind to the grid with the help of dynamic rating technologies. Therefore, great focus of the work lies on the analysis of DR connection of variable energy sources such as wind farms.


Event log

2015. STandUP for Wind annual meeting, October 2015, Uppsala, Sweden

2016. 8th International Conference on Applied Energy (ICAE), 8-11 October 2016, Beijing, China

2016. Vind 2016, 26-27 October, Stockholm, Sweden

2016. STandUP for Wind annual meeting, October 2016, Knivsta, Sweden

2016. 15th Wind Integration Workshop, 15-17 November 2016, Vienna, Austria

2017. Research vistor at MINES ParisTech, Feb-May 2017, Sophia Antipolis, Valbonne commune, France

2017. STandUP for Wind annual meeting, October 2017, Visby, Sweden

2018. PhD Student representative at STandUP for Wind management group. April 2017

2018. Licentiate thesis defense “Dynamic Rating of Power Lines and Transformers for Wind Energy Integration”, 9th of May 2018, opponent: Rebei Bel Fdhila, ABB AB Corporate research.

2018. 15th International Conference on Probabilistic Methods Applied to Power Systems (PMAPS), 24-28 June 2018, Boise, Idaho, USA

2018. 10th International Conference on Applied Energy (ICAE), 22-25 August 2018, Hong-Kong, China

2018. Organized STandUP for Wind PhD student Workshop, Upplands Bro, Sweden

2018. 17th Wind Integration Workshop and 8th Solar Integration Workshop, October 2018, Stockholm, Sweden

2018. Research visitor at Technical University of Denmark (DTU), 22-26 October 2018, Kongens Lyngby, Denmark

2018. STandUP for Wind annual meeting, November 29-30, Marholmen, Sweden

2019. STandUP for Wind annual meeting, 26-27 November 2019, Stockholm, Sweden

2019. 13th IEEE PowerTech Conference, 23-27 June 2019, Milano, Italy

2019. Research visitor at Ernest Orlando Lawrence Berkeley National Laboratory, March-August 2019, Berkeley, USA

2019. Research visitor at Technical University of Denmark (DTU), 23-27 September 2019, Kongens Lyngby, Denmark

2019. Research vistor at MINES ParisTech, 4-8 November 2019, Sophia Antipolis, Valbonne commune, France

2020. PhD Thesis defense. January 31 2020. Opponent: Adamantios Marinakis.

2020. 16th International Conference on Probabilistic Methods Applied to Power Systems (PMAPS), August 2020, Online

2020. IEEE PES Innovative Smart Grid Technologies Europe, October 2021. Online Conference paper presentation. Chairwoman of the conference session.

2020. November 22 – PhD degree is issued by KTH.


Project reference-group


Project-specific working group (frequent cooperation)
Tor Laneryd,  Hitachi ABB Power Grids (supervisor)
Claes Ahlrot,  E.ON
Ola Ivarsson,  E.ON

General QED reference group (twice per year)
Tommie Lindquist,  Svenska kraftnät
Milan Radosavljević,  Svenska kraftnät
Susanne Olausson,  Energiforsk AB
Ying He,  Vattenfall AB
Susann Persson,  Jämtkraft AB
Matz Tapper,  Svensk Energi
Johan Öckerman,  Vattenfall
Erik Jenelius,  Trafik och logistik KTH
Fredrik Carlsson,  Vattenfall
Thomas Welte,  Sintef Energi
Robert Saers,  Hitachi ABB Power Grids
Erik Lejerskog,  Ellevio AB
Andrew Kitimbo,  Vattenfall


MSc etc theses connected to the project

2016. Marco Merante “Application of dynamic rating to improve transportation capability of the power systems connected to wind power plants”, TRITA-EE 2016:095 link

2017. Tahereh Zarei “Analysis of reliability improvements of transformers after application of dynamic rating” TRITA-EE 2017:121 link

2017. Rikard Karlsson “Power system performance when implementing dynamic rating on a wind farm connected transformer” TRITA-EE 2017:139 link

2018. Patrik Gustafsson “Design of Experimental Setup for Investigation of Effect of Moisture Content on Transformer Paper Ageing during Intermittent Load”, TRITA-EECS-EX 2018:86 link

2018. Christos Stefanou “Investigation of the effect of moisture in transformers on the aging of the solid insulation for dynamic rating applications” TRITA-EECS-EX 2018:106 link

2018. Wadih Naim “Study of The Effect of Convective Heat Transfer on Cooling of Overhead Line Conductors Based on Wind Tunnel Experimental Results” TRITA-EECS-EX 2018:495 link

2018. Alice Vieira Turnell “Decentralized Secondary Frequency Control in an Optimized Diesel PV Hybrid System” TRITA-EECS-EX 2018:491 link

2019. Oscar David Ariza Rocha “Dynamic transformers rating for expansion of expansion of existing wind farms” TRITA-EECS-EX 2019:553 link

2020. Linus Dahlgren “Case Study on Applications of Measurement Equipment for Dynamic Line Rating” TRITA-EECS-EX 2020:574 link

2020. Andrea Molina Gomez “Improved planning of wind farms using dynamic transformer rating” TRITA-EECS-EX 2020:762 link


Publications by this researcher

See alternatively the researcher's full DiVA list of publications, with options for sorting.
Publications in journals and conferences usually will not show until a while after they are published.

An experimental assessment of the intermittent heating and cooling operation effect on power transformer insulation
Daniil Danylov,   Yanick Patrick Frei,   Leonardo Colombo,   Raimundo Montalba Mesa,   Zhanzhan Liu,   Patrick Janus,   Kateryna Morozovska.

Dynamic Rating with Applications to Renewable Energy
Kateryna Morozovska.
2020,   Thesis (PhD), KTH Royal Institute of Technology, TRITA-EECS-AVL 2020:3

A few methods for construction of feasible labeling
Olena Kryvtsun,   Elina Tereschenko,   Kateryna Morozovska.
2020,   The twenty-second seminar "Combinatorial configurations and their applications"

Dynamic rating assists cost-effective expansion of wind farms by utilizing the hidden capacity of transformers
Oscar David Ariza Rocha,   Kateryna Morozovska,   Tor Laneryd,   Ola Ivarsson,   Claes Ahlrot,   Patrik Hilber.
2020,   International Journal of Electrical Power & Energy Systems, vol. 123

Minimization of Wind Power Curtailment using Dynamic Line Rating
Vageesh Chakrapani Manakari,   Sandra Thengius,   Akshaya Tammanur Ravi,   Kateryna Morozovska,   Patrik Hilber.
2020,   2020 IEEE PES Innovative Smart Grid Technologies Europe (ISGT-Europe)

Emergency power flow re-routing in a distribution system by using dynamic line rating
Andrea Molina Gomez,   Gabriel Miguel Gomes Guerreiro,   Hannes Wiklund,   Johanna Lindstén,   Sindhu Kanya Nalini Ramakrishna,   Kateryna Morozovska,   Patrik Hilber.
2020,   2020 International Conference on Probabilistic Methods Applied to Power Systems (PMAPS)

A framework for application of dynamic line rating to aluminum conductor steel reinforced cables based on mechanical strength and durability
Kateryna Morozovska,   Wadih Naim,   N. Viafora,   Ebrahim Shayesteh,   Patrik Hilber.
2020,   International Journal of Electrical Power & Energy Systems, vol. 116

Reliability considerations and economic benefits of dynamic transformer rating for wind energy integration
Tahereh Zarei,   Kateryna Morozovska,   Tor Laneryd,   Patrik Hilber,   Malin Wihlen,   Hansson Olle.
2019,   International Journal of Electrical Power & Energy Systems, vol. 106

Day-ahead dispatch optimization with dynamic thermal rating of transformers and overhead lines
N. Viafora,   Kateryna Morozovska,   S. H. H. Kazmi,   T. Laneryd,   Patrik Hilber,   J. Holbøll.
2019,   Electric power systems research, vol. 171

Effects of Dynamic Line Rating on the Durability and Mechanical Strength of Aluminum Cable Steel Reinforced (ACSR) Conductors
Wadih Naim,   Kateryna Morozovska,   Patrik Hilber.
2019,   10th International Conference on Applied Energy, ICAE 2018

Dynamic Rating of Power Lines and Transformers for Wind Energy Integration
Kateryna Morozovska.
2018,   Thesis (Licentiate), KTH Royal Institute of Technology, TRITA-EECS-AVL 2018:37

DLR use for optimization of network design withvery large wind (and VRE) penetration
Ana Estanqueiro,   Claes Ahlrot,   Joaquim Duque,   Duarte Santos,   Jake P. Gentle,   Alexander W. Abboud,   Kateryna Morozovska,   Patrik Hilber,   Lennart Söder,   Thomas Kanefendt.
2018,   17th Wind Integration Workshop

Decentralized Secondary Frequency Controlin an Optimized Diesel PV Hybrid System
Alice Vieira Turnell,   Peter-Philipp Schierhorn,   Daniel Masendorf,   Kateryna Morozovska.
2018,   8th International Workshop on the Integration of Solar Power into Power Systems | Stockholm, Sweden | 16 – 17 October 2018

Risk and economic analysis of utilizing dynamic thermal rated transformer for wind farm connection
Alice Vieira Turnell,   Agnes Linnet,   Nahal Tamadon,   Kateryna Morozovska,   Patrik Hilber,   Tor Laneryd,   Malin Wihlen.
2018,   2018 International Conference on Probabilistic Methods Applied to Power Systems, PMAPS 2018

Risk analysis of wind farm connection to existing grids using dynamic line rating
Kateryna Morozovska,   Patrik Hilber.
2018,   2018 International Conference on Probabilistic Methods Applied to Power Systems, PMAPS 2018

Decentralized Secondary Frequency Control in an Optimized Diesel PV Hybrid System
Alice Vieira Turnell,   Peter-Philipp Schierhorn,   Daniel Masendorf,   Kateryna Morozovska.
2018,   8th International Workshop on the Integration of Solar Power into Power Systems | Stockholm, Sweden | 16 – 17 October 2018

Study of the Monitoring Systems for Dynamic Line Rating
Kateryna Morozovska,   Patrik Hilber.
2017,   8th International Conference on Applied Energy, ICAE 2016, Beijing, China, 8 October 2016 through 11 October 2016

Reliability study of two offshore wind farm topologies : Radial and ring connection
Oskar Giesecke,   Rikard Karlsson,   Kateryna Morozovska,   Patrik Hilber.
2016,   15th Wind Integration Workshop, Vienna, Austria

Publication list last updated from DiVA on 2021-09-18 22:00.


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Page started: 2018-07-01
Last generated: 2021-09-18