Urban Lundin

Utilizing internal waterways as supplemental spill capacity in hydropower plants

Strömme Mattsson, Adam; Lundin, Urban

Part of Journal of Applied Water Engineering and Research, p. 48-56, 2026

• DOI for Utilizing internal waterways as supplemental spill capacity in hydropower plants
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Experimental Testing of Amplified Inertia Response from Synchronous Machines Compared with Frequency Derivative-Based Synthetic Inertia

Fregelius, Martin; Albuquerque, Vinícius M.; Norrlund, Per; Lundin, Urban

Part of Energies, p. 3776, 2025

• DOI for Experimental Testing of Amplified Inertia Response from Synchronous Machines Compared with Frequency Derivative-Based Synthetic Inertia
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Storage system optimization for enhancing frequency control from hydropower

Laban, Danilo; Norrlund, Per; Lundin, Urban

Part of Journal of Energy Storage, 2025

• DOI for Storage system optimization for enhancing frequency control from hydropower
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Comparison of model performance and field data for hydro-battery hybrid systems providing frequency control

Laban, Danilo; Norrlund, Per; Lundin, Urban

Part of 8th International Hybrid Power Plants & Systems Workshop (HYB 2024), p. 47-52, 2024

• DOI for Comparison of model performance and field data for hydro-battery hybrid systems providing frequency control

An alternative Run-Up Strategy for Salient Pole Wound Field Synchronous Machines

Felicetti, Roberto; Albuquerque, Vinícius M.; Lundin, Urban

Part of IEEE Open Journal of Industrial Applications, p. 15-28, 2024

• DOI for An alternative Run-Up Strategy for Salient Pole Wound Field Synchronous Machines
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Utilizing internal waterways as supplemental spill capacity in hydropower plants

Strömme Mattsson, Adam; Lundin, Urban

Part of Journal of Applied Water Engineering and Research, p. 48-56, 2026

• DOI for Utilizing internal waterways as supplemental spill capacity in hydropower plants
• Download full text (pdf) of Utilizing internal waterways as supplemental spill capacity in hydropower plants

Experimental Testing of Amplified Inertia Response from Synchronous Machines Compared with Frequency Derivative-Based Synthetic Inertia

Fregelius, Martin; Albuquerque, Vinícius M.; Norrlund, Per; Lundin, Urban

Part of Energies, p. 3776, 2025

• DOI for Experimental Testing of Amplified Inertia Response from Synchronous Machines Compared with Frequency Derivative-Based Synthetic Inertia
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Storage system optimization for enhancing frequency control from hydropower

Laban, Danilo; Norrlund, Per; Lundin, Urban

Part of Journal of Energy Storage, 2025

• DOI for Storage system optimization for enhancing frequency control from hydropower
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An alternative Run-Up Strategy for Salient Pole Wound Field Synchronous Machines

Felicetti, Roberto; Albuquerque, Vinícius M.; Lundin, Urban

Part of IEEE Open Journal of Industrial Applications, p. 15-28, 2024

• DOI for An alternative Run-Up Strategy for Salient Pole Wound Field Synchronous Machines
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Storage System Design for Improved Primary Frequency Control From Hydropower Units

Laban, Danilo; Norrlund, Per; Lundin, Urban

Part of IEEE transactions on energy conversion, p. 1836-1844, 2023

• DOI for Storage System Design for Improved Primary Frequency Control From Hydropower Units

A Synchronous Machine Transient Model Based upon an Algebraic Loop Accounting for Nonlinearity and Cross-Magnetization

Felicetti, Roberto; Lundin, Urban

Part of International Journal of Rotating Machinery, 2023

• DOI for A Synchronous Machine Transient Model Based upon an Algebraic Loop Accounting for Nonlinearity and Cross-Magnetization
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Simulation of Rapid Voltage Edge Related Voltage Surges in Highly Inductive Windings with Frequency Dependent Parameters

Felicetti, Roberto; Pérez-Loya, Jesús J.; Lundin, Claes U.

Part of Progress in Electromagnetics Research B, p. 1-21, 2023

• DOI for Simulation of Rapid Voltage Edge Related Voltage Surges in Highly Inductive Windings with Frequency Dependent Parameters

Using hydropower turbine discharge as a complementary spillway

Lundin, Urban; Jonsson, Pontus; Facciolo, Luca

Part of Journal of Applied Water Engineering and Research, p. 117-126, 2023

• DOI for Using hydropower turbine discharge as a complementary spillway
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Dynamic model for hydropower generators with floating rotor rim

Rondon, David; Aidanpää, Jan-Olov; Gustavsson, Rolf; Lundin, Urban et al.

Part of Mechanical systems and signal processing, 2023

• DOI for Dynamic model for hydropower generators with floating rotor rim
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Performance Evaluation of a Supercapacitor Based Synthetic Inertia System Using Frequency Locked Loop and Real-Time Frequency Derivative Estimation

Fregelius, Martin; Lundin, Urban

Part of International Journal of Electrical Power & Energy Systems, 2023

• DOI for Performance Evaluation of a Supercapacitor Based Synthetic Inertia System Using Frequency Locked Loop and Real-Time Frequency Derivative Estimation

An experimentally determined field winding model with frequency-dependent parameters

Felicetti, Roberto; Abrahamsson, Johan; Lundin, Urban

Part of IET Electric Power Applications, p. 696-716, 2021

• DOI for An experimentally determined field winding model with frequency-dependent parameters
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Controlling airgap magnetic flux density harmonics in synchronous machines using field current injection

Evestedt, Fredrik; Pérez-Loya, Jesús José; Abrahamsson, Johan; Lundin, Urban

Part of Electrical engineering (Berlin. Print), p. 195-203, 2021

• DOI for Controlling airgap magnetic flux density harmonics in synchronous machines using field current injection
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Mitigation of Unbalanced Magnetic Pull in Synchronous Machines With Rotating Exciters

Evestedt, Fredrik; Pérez-Loya, Jesús José; Abrahamsson, Johan; Lundin, Urban

Part of IEEE transactions on energy conversion, p. 812-819, 2021

• DOI for Mitigation of Unbalanced Magnetic Pull in Synchronous Machines With Rotating Exciters

A Model for Stator Eddy Current Losses Due to Axial Flux in Synchronous Generators at Steady State and under Load Angle Oscillations

Marcusson, Birger; Lundin, Urban

Part of Electric power components and systems, p. 120-132, 2021

• DOI for A Model for Stator Eddy Current Losses Due to Axial Flux in Synchronous Generators at Steady State and under Load Angle Oscillations
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The influence of eddy currents on the excitation winding impedance of solid and laminated salient pole synchronous machines

Felicetti, Roberto; Abrahamsson, Johan; Lundin, Urban

Part of Electrical engineering (Berlin. Print), p. 2553-2566, 2020

• DOI for The influence of eddy currents on the excitation winding impedance of solid and laminated salient pole synchronous machines
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Unified Reduced Model for a Dual-Control Scheme of the High-Speed Response Brushless Excitation System of Synchronous Generators

Noland, Jonas Kristiansen; Alves, Erick Fernando; Pardini, Atila; Lundin, Urban

Part of IEEE Transactions on Industrial Electronics, p. 4474-4484, 2020

• DOI for Unified Reduced Model for a Dual-Control Scheme of the High-Speed Response Brushless Excitation System of Synchronous Generators

Electromagnetic losses in synchronous machines during active compensation of unbalanced magnetic pull

Pérez-Loya, J. José; Abrahamsson, C. Johan D.; Lundin, Urban

Part of IEEE Transactions on Industrial Electronics, p. 124-131, 2019

• DOI for Electromagnetic losses in synchronous machines during active compensation of unbalanced magnetic pull

Failure Modes Demonstration and Redundant Postfault Operation of Rotating Thyristor Rectifiers on Brushless Dual-Star Exciters

Nøland, Jonas Kristiansen; Evestedt, Fredrik; Lundin, Urban

Part of IEEE Transactions on Industrial Electronics, p. 842-851, 2019

• DOI for Failure Modes Demonstration and Redundant Postfault Operation of Rotating Thyristor Rectifiers on Brushless Dual-Star Exciters

Comparison of Thyristor Rectifier Configurations for a Six-Phase Rotating Brushless Outer Pole PM Exciter

Kristiansen Nøland, Jonas; Evestedt, Fredrik; Pérez-Loya, Jesús José; Abrahamsson, Johan et al.

Part of IEEE Transactions on Industrial Electronics, p. 968-976, 2018

• DOI for Comparison of Thyristor Rectifier Configurations for a Six-Phase Rotating Brushless Outer Pole PM Exciter

Demonstration of Synchronous Motor Start by Rotor Polarity Inversion

Pérez-Loya, J. José; Abrahamsson, C. Johan D.; Evestedt, Fredrik; Lundin, Urban

Part of IEEE Transactions on Industrial Electronics, p. 8271-8273, 2018

• DOI for Demonstration of Synchronous Motor Start by Rotor Polarity Inversion

Burden on hydropower units for short-term balancing of renewable power systems

Yang, Weijia; Sundqvist, Per; Saarinen, Linn; Witt, Adam et al.

Part of Nature Communications, 2018

• DOI for Burden on hydropower units for short-term balancing of renewable power systems
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Eigen-analysis of hydraulic-mechanical-electrical coupling mechanism for small signal stability of hydropower plant

Yang, Weijia; Norrlund, Per; Chung, Chi Yung; Yang, Jiandong et al.

Part of Renewable energy, p. 1014-1025, 2018

• DOI for Eigen-analysis of hydraulic-mechanical-electrical coupling mechanism for small signal stability of hydropower plant

Active Current Sharing Control Method for Rotating Thyristor Rectifiers on Brushless Dual-Star Exciters

Nøland, Jonas Kristiansen; Evestedt, Fredrik; Lundin, Urban

Part of IEEE transactions on energy conversion, p. 893-896, 2018

• DOI for Active Current Sharing Control Method for Rotating Thyristor Rectifiers on Brushless Dual-Star Exciters

Linear synthetic inertia for improved frequency quality and reduced hydropower wear and tear

Saarinen, Linn; Norrlund, Per; Yang, Weijia; Lundin, Urban

Part of International Journal of Electrical Power & Energy Systems, p. 488-495, 2018

• DOI for Linear synthetic inertia for improved frequency quality and reduced hydropower wear and tear

Testing of Active Rectification Topologies on a Six-Phase Rotating Brushless Outer Pole PM Exciter

Nøland, Jonas Kristiansen; Evestedt, Fredrik; Pérez-Loya, Jesús José; Abrahamsson, Johan et al.

Part of IEEE transactions on energy conversion, p. 59-67, 2018

• DOI for Testing of Active Rectification Topologies on a Six-Phase Rotating Brushless Outer Pole PM Exciter

Hydraulic damping mechanism of low frequency oscillations in power systems: Quantitative analysis using a nonlinear model of hydropower plants

Yang, Weijia; Sundqvist, Per; Lidenholm, Johan; Yang, Jiandong et al.

Part of Applied Energy, p. 1138-1152, 2018

• DOI for Hydraulic damping mechanism of low frequency oscillations in power systems: Quantitative analysis using a nonlinear model of hydropower plants

Allocation of Frequency Control Reserves and its Impact on Wear and Tear on a Hydropower Fleet

Saarinen, Linn; Norrlund, Per; Yang, Weijia; Lundin, Urban

Part of IEEE Transactions on Power Systems, p. 430-439, 2018

• DOI for Allocation of Frequency Control Reserves and its Impact on Wear and Tear on a Hydropower Fleet

Wear reduction for hydro power turbines considering frequency quality of power systems: a study on controller filters

Yang, Weijia; Norrlund, Per; Saarinen, Linn; Yang, Jiandong et al.

Part of IEEE Transactions on Power Systems, p. 1191-1201, 2017

• DOI for Wear reduction for hydro power turbines considering frequency quality of power systems: a study on controller filters

Harmonically Time Varying, Traveling Electromagnetic Fields along a Laminate Approximated by a Homogeneous, Anisotropic Block with Infinite Length

Marcusson, Birger; Lundin, Urban

Part of Progress in Electromagnetics Research B, p. 65-81, 2017

• DOI for Harmonically Time Varying, Traveling Electromagnetic Fields along a Laminate Approximated by a Homogeneous, Anisotropic Block with Infinite Length

Harmonically Time Varying, Traveling Electromagnetic Fields along a Plate and a Laminate with a Rectangular Cross Section, Isotropic Materials and Infinite Length

Marcusson, Birger; Lundin, Urban

Part of Progress in Electromagnetics Research B, p. 117-136, 2017

• DOI for Harmonically Time Varying, Traveling Electromagnetic Fields along a Plate and a Laminate with a Rectangular Cross Section, Isotropic Materials and Infinite Length
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Design and Characterization of a Rotating Brushless Outer Pole PM Exciter for a Synchronous Generator

Nøland, Jonas Kristiansen; Evestedt, Fredrik; Pérez-Loya, J. José; Abrahamsson, Johan et al.

Part of IEEE transactions on industry applications, p. 2016-2027, 2017

• DOI for Design and Characterization of a Rotating Brushless Outer Pole PM Exciter for a Synchronous Generator

Performance tests of a permanent magnet thrust bearing for a hydropower synchronous generator test-rig

Pérez-Loya, Jesús José; Abrahamsson, Johan; Evestedt, Fredrik; Lundin, Urban

Part of ACES Journal, p. 704-711, 2017

Axial Magnetic Fields, Axial Force, and Losses in the Stator Core and Clamping Structure of a Synchronous Generator with Axially Displaced Stator

Marcusson, Birger; Lundin, Urban

Part of Electric power components and systems, p. 410-419, 2017

• DOI for Axial Magnetic Fields, Axial Force, and Losses in the Stator Core and Clamping Structure of a Synchronous Generator with Axially Displaced Stator

Demonstration of active compensation of unbalanced magnetic pull in synchronous machines

Pérez-Loya, J. Jose; Abrahamsson, C. Johan. D.; Lundin, Urban

Part of CIGRE Science & Engineering, p. 98-107, 2017

Standstill Frequency Response Test on a Synchronous Machine Extended With Damper Bar Measurements

Bladh, Johan; Wallin, Mattias; Saarinen, Linn; Lundin, Urban

Part of IEEE transactions on energy conversion, p. 46-56, 2016

• DOI for Standstill Frequency Response Test on a Synchronous Machine Extended With Damper Bar Measurements

Simple Method to Calculate the Force between Thin Walled Solenoids

Pérez-Loya, J. José; Lundin, Urban

Part of Progress In Electromagnetics Research M, p. 93-100, 2016

• DOI for Simple Method to Calculate the Force between Thin Walled Solenoids

Comparison of Thyristor-Controlled Rectification Topologies for a Six-Phase Rotating Brushless Permanent Magnet Exciter

Nøland, Jonas Kristiansen; Hjelmervik, Karina Bakkeløkken; Lundin, Urban

Part of IEEE transactions on energy conversion, p. 314-322, 2016

• DOI for Comparison of Thyristor-Controlled Rectification Topologies for a Six-Phase Rotating Brushless Permanent Magnet Exciter

Field Measurements and System Identification of Three Frequency Controlling Hydropower Plants

Saarinen, Linn; Norrlund, Per; Lundin, Urban

Part of IEEE transactions on energy conversion, p. 1061-1068, 2015

• DOI for Field Measurements and System Identification of Three Frequency Controlling Hydropower Plants

Power system flexibility need induced by wind and solar power intermittency on time scales of 1-14 days

Saarinen, Linn; Dahlbäck, Niklas; Lundin, Urban

Part of Renewable energy, p. 339-344, 2015

• DOI for Power system flexibility need induced by wind and solar power intermittency on time scales of 1-14 days

Axial Magnetic Fields at the Ends of a Synchronous Generator at Different Points of Operation

Marcusson, Birger; Lundin, Urban

Part of IEEE transactions on magnetics, 2015

• DOI for Axial Magnetic Fields at the Ends of a Synchronous Generator at Different Points of Operation

Optimization of Force Between Cylindrical Permanent Magnets

Perez-Loya, J. Jose; Lundin, Urban

Part of IEEE Magnetics Letters, 2014

• DOI for Optimization of Force Between Cylindrical Permanent Magnets

Torsional stability of hydropower units under influence of subsynchronous oscillations

Bladh, Johan; Sundqvist, Per; Lundin, Urban

Part of IEEE Transactions on Power Systems, p. 3826-3833, 2013

• DOI for Torsional stability of hydropower units under influence of subsynchronous oscillations

Use of a finite element model for the determination of damping and synchronizing torques of hydroelectric generators

Ranlöf, Martin; Bladh, Johan; Lundin, Urban

Part of International Journal of Electrical Power & Energy Systems, p. 844-851, 2013

• DOI for Use of a finite element model for the determination of damping and synchronizing torques of hydroelectric generators

Dynamic Unbalanced Pull from Field Winding Turn Short Circuits in Hydropower Generators

Wallin, Mattias; Lundin, Urban

Part of Electric power components and systems, p. 1672-1685, 2013

• DOI for Dynamic Unbalanced Pull from Field Winding Turn Short Circuits in Hydropower Generators

Damper winding influence on unbalanced magnetic pull in salient pole generators with rotor eccentricity

Wallin, Mattias; Bladh, Johan; Lundin, Urban

Part of IEEE transactions on magnetics, p. 5158-5165, 2013

• DOI for Damper winding influence on unbalanced magnetic pull in salient pole generators with rotor eccentricity

Reduction of unbalanced magnetic pull in synchronous machines due to parallel circuits

Wallin, Mattias; Ranlöf, Martin; Lundin, Urban

Part of IEEE transactions on magnetics, p. 4827-4833, 2011

• DOI for Reduction of unbalanced magnetic pull in synchronous machines due to parallel circuits

Form Factors and Harmonic Imprint of Salient Pole Shoes in Large Synchronous Machines

Ranlöf, Martin; Lundin, Urban

Part of Electric power components and systems, p. 900-916, 2011

• DOI for Form Factors and Harmonic Imprint of Salient Pole Shoes in Large Synchronous Machines

On Permeance Modeling of Large Hydrogenerators With Application to Voltage Harmonics Prediction

Ranlöf, Martin; Perers, Richard; Lundin, Urban

Part of IEEE transactions on energy conversion, p. 1179-1186, 2010

• DOI for On Permeance Modeling of Large Hydrogenerators With Application to Voltage Harmonics Prediction

Estimation of Hydropower Generator Parameters Through Field Simulations of Standard Tests

Lidenholm, Johan; Lundin, Urban

Part of IEEE transactions on energy conversion, p. 931-939, 2010

• DOI for Estimation of Hydropower Generator Parameters Through Field Simulations of Standard Tests

Core Loss Prediction in Large Hydropower Generators: Influence of Rotational Fields

Ranlöf, Martin; Wolfbrandt, Anna; Lidenholm, Johan; Lundin, Urban

Part of IEEE Transactions on Magnetics, p. 3200-3206, 2009

• DOI for Core Loss Prediction in Large Hydropower Generators: Influence of Rotational Fields

Finite Element Analysis of a Permanent Magnet Machine with Two Contra-rotating Rotors

Ranlöf, Martin; Lundin, Urban

Part of Electric power components and systems, p. 1334-1347, 2009

• DOI for Finite Element Analysis of a Permanent Magnet Machine with Two Contra-rotating Rotors

Method for modeling time-dependent nonuniform rotor/stator configurations in electrical machines

Lundin, Urban; Wolfbrandt, Arne

Part of IEEE Transactions on Magnetics, p. 2976-2980, 2009

• DOI for Method for modeling time-dependent nonuniform rotor/stator configurations in electrical machines

Poynting theorem applied to cable wound generators

Bolund, Björn; Leijon, Mats; Lundin, Urban

Part of IEEE transactions on dielectrics and electrical insulation, p. 600-605, 2008

• DOI for Poynting theorem applied to cable wound generators

Poynting Vector Analysis of Synchronous Generators Using Field Simulations

Lundin, Urban; Bolund, Björn; Leijon, Mats

Part of IEEE transactions on magnetics, p. 3601-3606, 2007

• DOI for Poynting Vector Analysis of Synchronous Generators Using Field Simulations

Saturation Effects on Unbalanced Magnetic Pull in a Hydroelectric Generator With an Eccentric Rotor

Perers, Richard; Lundin, Urban; Leijon, Mats

Part of IEEE transactions on magnetics, p. 3884-3890, 2007

• DOI for Saturation Effects on Unbalanced Magnetic Pull in a Hydroelectric Generator With an Eccentric Rotor

Theory of strongly correlated electron systems. II. Including correlation effects into electronic structure calculations

Lundin, Urban; Sandalov, Igor; Eriksson, Olle

Part of International Journal of Quantum Chemistry, p. 1046-1055, 2005

• DOI for Theory of strongly correlated electron systems. II. Including correlation effects into electronic structure calculations

Analysis of emerging technologies in the hydropower sector

Kougias, Ioannis; Aggidis, George; Avellan, Francois; Deniz, Sabri et al.

Part of Renewable & sustainable energy reviews, 2019

• DOI for Analysis of emerging technologies in the hydropower sector
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Development of synchronous generators for Swedish hydropower: A review

Perers, Richard; Lundin, Urban; Leijon, Mats

Part of Renewable & sustainable energy reviews, p. 1008-1017, 2007

• DOI for Development of synchronous generators for Swedish hydropower: A review

Comparison of model performance and field data for hydro-battery hybrid systems providing frequency control

Laban, Danilo; Norrlund, Per; Lundin, Urban

Part of 8th International Hybrid Power Plants & Systems Workshop (HYB 2024), p. 47-52, 2024

• DOI for Comparison of model performance and field data for hydro-battery hybrid systems providing frequency control

Validation of the Analytical Prediction of the Damper Winding Pole-to-Pole Impedance in Hydro Generators

Ridder, Andreas; de Barros, Allan; Lundin, Urban; Hernnäs, Bo et al.

Part of 2024 27th International Conference on Electrical Machines and Systems (ICEMS), p. 1911-1918, 2024

• DOI for Validation of the Analytical Prediction of the Damper Winding Pole-to-Pole Impedance in Hydro Generators

A concept to ensure spill discharge capacity during grid blackout and flooding

Strömme Mattsson, Adam; Lundin, Urban; Billstein, Mats; Nordström, E.

Part of Management for Safe Dams, p. 769-777, 2023

Electrical dump-loads increasing spill capacity

Strömme Mattsson, Adam; Norrlund, Per; Lundin, Urban

Part of Hydropower R&D days 2023., 2023

Start of a synchronous motor using rotor field polarity inversion and rotor back-emf sensing

Lundin, Urban; Evestedt, Fredrik; Abrahamsson, Johan; Pérez, José et al.

Part of 2020 International Conference on Electrical Machines (ICEM), p. 338-344, 2020

• DOI for Start of a synchronous motor using rotor field polarity inversion and rotor back-emf sensing

Experimentally validated model of a fast switched salient pole rotor winding

Felicetti, Roberto; Abrahamsson, C. Johan D.; Lundin, Urban

Part of 2019 IEEE Workshop on Electrical Machines Design, Control and Diagnosis (WEMDCD), p. 150-156, 2019

• DOI for Experimentally validated model of a fast switched salient pole rotor winding
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Hardware Implementation of A Synthetic Inertia System for Grid Stability

Fregelius, Martin; Lundin, Urban

Part of 2019 8th International Conference on Renewable Energy Research and Applications (ICRERA), p. 186-190, 2019

• DOI for Hardware Implementation of A Synthetic Inertia System for Grid Stability

Experimentally validated model of a fast switched salient pole rotor winding

Felicetti, Roberto; Abrahamsson, C. J. D.; Lundin, Urban

Part of 2019 Ieee Workshop On Electrical Machines Design, Control And Dagnosis (Wemdcd), Vol 1, p. 150-156, 2019

Improving frequency control from Kaplan turbines to fulfill grid codes

Dahlborg, Elin; Norrlund, Per; Saarinen, Linn; Lundin, Urban

Part of HYDRO 2019, Porto, Portugal, 14-16 October, 2019., 2019

• Download full text (pdf) of Improving frequency control from Kaplan turbines to fulfill grid codes

Time Domain Signature Analysis of Synchronous Generator under Broken Damper Bar Fault

Ehya, Hossein; Nysveen, Arne; Nilssen, Robert; Lundin, Urban

Part of 45Th Annual Conference Of The Ieee Industrial Electronics Society (IECON 2019), p. 1423-1428, 2019

Magnetic thrust bearing for a 10 MW hydropower generator with a Kaplan turbine

Abrahamsson, Curt Johan David; Pérez-Loya, Jesús José; Fregelius, Martin; Evestedt, Fredrik et al.

2018

Damper Winding Fault Analysis in Synchronous Machines

Sahoo, Subrat; Holmgren, Fredrik; Rodriguez, Pedro; Pérez, José et al.

Part of 2018 XIII international conference on electrical machines (ICEM), p. 1789-1795, 2018

Full-scale test and modelling of the frequency control dynamics of the Nordic power system

Saarinen, Linn; Norrlund, Per; Lundin, Urban; Agneholm, Evert et al.

2016

• DOI for Full-scale test and modelling of the frequency control dynamics of the Nordic power system

Evaluation of different power electronic interfaces for control of a rotating brushless PM exciter

Nøland, Jonas Kristiansen; Evestedt, Fredrik; Pérez-Loya, Jesús José; Abrahamsson, Johan et al.

Part of Proceedings Of The IECON 2016 - 42nd Annual Conference of the IEEE Industrial Electronics Society, p. 1924-1929, 2016

Initial Performance Tests of a Permanent Magnet Thrust Bearing for a Hydropower Synchronous Generator Test-Rig

Perez-Loya, J. Jose; Abrahamsson, Johan; Evestedt, Fredrik; Lundin, Urban

2016

Design and characterization of a rotating brushless PM exciter for a synchronous generator test setup

Nøland, Jonas Kristiansen; Evestedt, Fredrik; Pérez-Loya, Jesus José; Abrahamsson, Johan et al.

Part of Design and characterization of a rotating brushless PM exciter for a synchronous generator test setup, p. 259-265, 2016

• DOI for Design and characterization of a rotating brushless PM exciter for a synchronous generator test setup

Full-scale test and modelling of the frequency control dynamics of the Nordic power system

Saarinen, Linn; Norrlund, Per; Lundin, Urban; Agneholm, Evert et al.

Part of 2016 IEEE POWER AND ENERGY SOCIETY GENERAL MEETING (PESGM), 2016

• DOI for Full-scale test and modelling of the frequency control dynamics of the Nordic power system

Step time response evaluation of different synchronous generator excitation systems

Nøland, Jonas Kristiansen; Lundin, Urban

Part of Step time response evaluation of different synchronous generator excitation systems, 2016

• DOI for Step time response evaluation of different synchronous generator excitation systems

Tuning primary frequency controllers using robust control theory in a power system dominated by hydropower

Saarinen, Linn; Norrlund, Per; Lundin, Urban

2016

Magnetic Modeling and Measurement of Forces Between Permanent Magnet Rings used as Passive Magnetic Bearings

Pérez-Loya, Jesus José; Rodriguez, E.; Hedlund, Magnus; Stephan, R. M. et al.

2013

Construction of a Permanent Magnet Thrust Bearing for a Hydropower Generator Test Setup

Pérez-Loya, Jesus José; de Santiago, Juan; Lundin, Urban

2013

Voltage stability at hydropower stations influenced by close-located wind farms

Lidström, Erica; Wall, Daniel; Persson, Jonas; Lundin, Urban

2012

Design and construction of a synchronous generator test setup

Wallin, Mattias; Ranlöf, Martin; Lundin, Urban

p. 1-5, 2010

• DOI for Design and construction of a synchronous generator test setup

Comparison of field and circuit generator models in single machine infinite bus system simulations

Lidenholm, Johan; Ranlöf, Martin; Lundin, Urban

Part of Electrical Machines (ICEM), 2010 XIX International Conference on, 2010

• DOI for Comparison of field and circuit generator models in single machine infinite bus system simulations

The Rotating Field Method Applied to Damper Loss Calculation in Large Hydrogenerators

Ranlöf, Martin; Lundin, Urban

2010

• DOI for The Rotating Field Method Applied to Damper Loss Calculation in Large Hydrogenerators

Effects of including automatic excitation control in transient field simulations of hydrogenerators

Lidenholm, Johan; Ranlöf, Martin; Lundin, Urban

Part of Proceedings of the 44th International Universities Power Engineering Conference, 2009

Developments in Rotor Dynamical Modeling of Hydropower units

Aidanpää, J.-O; Gustavsson, R. K.; Lundström, N. L. P; Karlsson, M. et al.

2009

Simulation of a Radial Flux Permanent Magnet Generator with Two Contra-Rotating Rotors

Ranlöf, Martin; Connor, Gary; Lundin, Urban

2008

Losses in Axial-Flux Permanent-Magnet Coreless Flywheel Energy Storage Systems

de Santiago Ochoa, Juan; Goncalves de Oliveira, Janaína; Lundin, Johan; Larsson, Anders et al.

2008

High Voltage Generators; Ideas behind them and Operation Data

Leijon, Mats; Bolund, Björn; Lundin, Urban

2006

Magnetic thrust bearing for a hydropower unit with a Kaplan turbine

Pérez-Loya, J. Jose; Evestedt, Fredrik; Lundin, Urban

2017

Inertia estimation methods for hydropower units

Dahlborg, Elin; Norrlund, Per; Saarinen, Linn; Özcelikkale, Ayca et al.

Enhanced Inertia using amplified power response from synchronous machines compared with frequency derivative-based inertia

Fregelius, Martin; Albuquerque, Vinicius; Lundin, Urban; Norrlund, Per

Full scale hybrid hydroelectric lithium-ion energy storage for supplying frequency containment reserve

Fregelius, Martin; Lundin, Urban; Norrlund, Per

Altering Flux Density Harmonics in the Air-gap of Synchronous Machines by Active Control of the Field Current

Evestedt, Fredrik; Pérez-Loya, Jesús José; Abrahamsson, Johan; Lundin, Urban

Permanent-magnet linear generator design for the energy harvest of vortex-induced vibrations

Albuquerque, Vinícius M.; Felicetti, Roberto; Forslund, Johan; Lundin, Urban

Contribution of Empirical Fast Frequency Control Schemes to Nordic Power System Stability

Laban, Danilo; Albuquerque, Vinícius M.; Saarinen, Linn; Ekestam, Henrik et al.

Experimental Comparison of Frequency Derivative Estimation for Synthetic Inertia

Laban, Danilo; Albuquerque, Vinícius M.; Norrlund, Per; Lundin, Urban

Salient pole electrical machine

Felicetti, Roberto; Lundin, Urban

2022

Synchronous machine and method for operating a synchronous machine

Pérez-Loya, J. Jose; Abrahamsson, C. Johan. D.; Lundin, Urban

2017