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Elis Nycander - IEEE Xplore Author Profile
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Elis Nycander

Publications
8
Citations
19
Publications by Year
20182024
Co-Authors:
Show All Co-Authors (12)
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Elis Nycander

Affiliation

Svenska kraftnät, Stockholm, Sweden

Publication Topics

Biography

Elis Nycander (Student Member, IEEE) received the M.Sc. degree in engineering physics from Uppsala University, Uppsala, Sweden, in 2016. He is currently working toward the Ph.D. degree with the KTH Royal Institute of Technology, Stockholm, Sweden. His research interests include planning, operation, and economics of electric power systems.(Based on document published on 22 March 2022).
Publications
8
Citations
19
Publications by Year
20182024
Co-Authors:
Show All Co-Authors (12)
Author's Published Works

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Evaluation of methods for long-term hydropower planning in electricity market models

Elis Nycander;Erik Böhlmark

IET Powering Net Zero (PNZ 2024)
Year: 2024 | Conference Paper |
This paper evaluates three different methods for long-term planning of hydro dominated power systems. Two established electricity market models using water values, EMPS and BID3, are compared, as well as a look-ahead dispatch which relies on the average optimal reservoir curves computed from a long-term steady-state optimization of the system. All three methods are evaluated using out-of-sample si...Show More

Evaluation of methods for long-term hydropower planning in electricity market models

Elis Nycander;Erik Böhlmark

Year: 2024 | Volume: 2024 | Conference Paper |

Modelling Prices in Hydro Dominated Electricity Markets

Elis Nycander;Lennart Söder

2022 18th International Conference on the European Energy Market (EEM)
Year: 2022 | Conference Paper |
In aggregated power system models, hydro power is used to even out the price fluctuations as much as possible. For power systems with a significant share of hydro power, this results in price profiles which are almost flat. Contrary to this behaviour, the prices in the Nordic countries show considerable daily fluctuations. As a result, a centralized dispatch model which simulates the aggregated hy...Show More

Modelling Prices in Hydro Dominated Electricity Markets

Elis Nycander;Lennart Söder

Year: 2022 | Conference Paper |

Reserve Formulations for Power-Based Unit Commitment with N-1 Security

Elis Nycander;Germán Morales-España;Lennart Söder

2022 3rd International Conference on Smart Grid and Renewable Energy (SGRE)
Year: 2022 | Conference Paper |
This paper presents power-based unit commitment (UC) formulations with N-l security constraints. Two different formulations are proposed, one with constant reserves within the hour and one with time-varying reserves. The formulations are compared to a conventional energy-based UC formulation using different examples. We show that the energy-based formulation does not ensure N-l security at all tim...Show More

Reserve Formulations for Power-Based Unit Commitment with N-1 Security

Elis Nycander;Germán Morales-España;Lennart Söder

Year: 2022 | Conference Paper |

Capacity and Intra-Hour Ramp Reserves for Wind Integration

Elis Nycander;Germán Morales-España;Lennart Söder

IEEE Transactions on Sustainable Energy
Year: 2022 | Volume: 13, Issue: 3 | Journal Article |
Cited by: Papers (2)
We propose a power-based unit commitment formulation with capacity and intra-hour ramp reserves for dealing with intra-hour wind power variability and uncertainty. Although the formulation has an hourly resolution, the intra-hour ramp requirements capture wind power ramp excursions with a time duration below one hour, and thus allows the formulation to consider intra-hourly wind variability and un...Show More

Capacity and Intra-Hour Ramp Reserves for Wind Integration

Elis Nycander;Germán Morales-España;Lennart Söder

Year: 2022 | Volume: 13, Issue: 3 | Journal Article |

An Open Model for Generating High Resolution Wind Power Production Scenarios

Elis Nycander;Lennart Söder

2021 IEEE Madrid PowerTech
Year: 2021 | Conference Paper |
Cited by: Papers (2)
Efficient integration of variable renewable energy (VRE) such as wind power into power systems requires methods for power system operation planning that account for VRE uncertainty and variability. This has motivated extensive research into unit commitment (UC) and optimal power flow (OPF) formulations with VRE uncertainty. However, these formulations are often tested using significantly simplifie...Show More

An Open Model for Generating High Resolution Wind Power Production Scenarios

Elis Nycander;Lennart Söder

Year: 2021 | Conference Paper |

Open Nodal Power Flow Model of the Nordic Power System

Aravind S Kumar;Iasonas Kouveliotis-Lysikatos;Elis Nycander;Jon Olauson;Manuel Marin;Mikael Amelin;Lennart Söder

2021 IEEE Madrid PowerTech
Year: 2021 | Conference Paper |
Cited by: Papers (3)
Lack of openly available power system data due to market regulations or corporate policies hinders the development of models for power system planning and operation studies. This work presents an open source model of the Nordic synchronous area (the Nordic490 model), which can be used for power flow calculations. To reach an accurate modelling of the Nordic transmission grid, the production and co...Show More

Open Nodal Power Flow Model of the Nordic Power System

Aravind S Kumar;Iasonas Kouveliotis-Lysikatos;Elis Nycander;Jon Olauson;Manuel Marin;Mikael Amelin;Lennart Söder

Year: 2021 | Conference Paper |

Comparison of stochastic and deterministic security constrained optimal power flow under varying outage probabilities

Elis Nycander;Lennart Söder

2019 IEEE Milan PowerTech
Year: 2019 | Conference Paper |
Cited by: Papers (8)
Increasing penetration of renewables and focus on cost efficiency means that power systems are operated closer to security limits. It has been suggested that the traditional N-l approach to security is unsatisfactory as it does not consider the likelihood and severity of contingencies. In this paper we investigate a stochastic version of security-constrained optimal power flow (S-SCOPF), which con...Show More

Comparison of stochastic and deterministic security constrained optimal power flow under varying outage probabilities

Elis Nycander;Lennart Söder

Year: 2019 | Conference Paper |

A Hybrid Model Based on Symbolic Regression and Neural Networks for Electricity Load Forecasting

Ilias Dimoulkas;Lars Herre;Dina Khastieva;Elis Nycander;Mikael Amelin;Peyman Mazidi

2018 15th International Conference on the European Energy Market (EEM)
Year: 2018 | Conference Paper |
Cited by: Papers (4)
This paper proposes a hybrid model for electricity load forecasting. Symbolic regression is initially used to automatically create a regression model of the load. Then the explanatory variables and their transformations that have been selected in the model are used as input in an artificial neural network that is trained to predict the electricity load at the output. Therefore symbolic regression ...Show More

A Hybrid Model Based on Symbolic Regression and Neural Networks for Electricity Load Forecasting

Ilias Dimoulkas;Lars Herre;Dina Khastieva;Elis Nycander;Mikael Amelin;Peyman Mazidi

Year: 2018 | Conference Paper |

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