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Paavo Rasilo - IEEE Xplore Author Profile
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Paavo Rasilo

Also published under: P. Rasilo

Publications
108
Citations
923
Publications by Year
20082025
Co-Authors:
Show All Co-Authors (115)
Image of author Paavo Rasilo

Paavo Rasilo

Also published under: P. Rasilo

Affiliation

Electrical Engineering Unit
Tampere University
Tampere, Finland

Publication Topics

Biography

Paavo Rasilo (Member, IEEE) received the M.Sc. (Tech.) and D.Sc. (Tech.) degrees from Helsinki University of Technology (currently Aalto University) and Aalto University, Espoo, Finland, in 2008 and 2012, respectively. He is currently working as an Associate Professor at the Unit of Electrical Engineering, Tampere University, Finland. His research interests include computational electromagnetics and magnetic material modeling related to electrical machines, passive magnetic components, wireless power transfer, and energy harvesting.(Based on document published on 18 August 2021).
Publications
108
Citations
923
Publications by Year
20082025
Co-Authors:
Show All Co-Authors (115)
Author's Published Works

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High-Efficient Self-Excited Brushless Wound Rotor Synchronous Machine Topology

Syed Sabir Hussain Bukhari;Paavo Rasilo

IEEE Transactions on Magnetics
Year: 2025 | Early Access Article |
This article proposes a new armature winding configuration to implement the sub-harmonic field excitation method for brushless operation in wound rotor synchronous machines (WRSMs). The proposed configuration combines single- and double-layer winding arrangements to generate a fundamental and a suitable magnitude of sub-harmonic magnetomotive force (MMF) components in the machine’s airgap. The fun...Show More

High-Efficient Self-Excited Brushless Wound Rotor Synchronous Machine Topology

Syed Sabir Hussain Bukhari;Paavo Rasilo

Year: 2025 | Early Access Article |

Foil Conductor Model for Efficient Simulation of HTS Coils in Large Scale Applications

Elias Paakkunainen;Louis Denis;Christophe Geuzaine;Paavo Rasilo;Sebastian Schöps

IEEE Transactions on Applied Superconductivity
Year: 2025 | Volume: 35, Issue: 5 | Journal Article |
Cited by: Papers (1)
Homogenization techniques are an appealing approach to reduce computational complexity in systems containing coils with large numbers of high temperature superconductor (HTS) tapes. Resolving all the coated conductor layers and turns in coils is often computationally prohibitive. In this paper, we extend the foil conductor model, well-known in normal conducting applications, to applications with i...Show More

Foil Conductor Model for Efficient Simulation of HTS Coils in Large Scale Applications

Elias Paakkunainen;Louis Denis;Christophe Geuzaine;Paavo Rasilo;Sebastian Schöps

Year: 2025 | Volume: 35, Issue: 5 | Journal Article |

Loss Minimization Control of PMSM for Electrified Non-Road Mobile Machinery Using Flux and Loss Maps

Chunjie Dai;Hadhiq Khan;Amr A. Abbas;Paavo Rasilo;Tatiana Minav

2024 International Conference on Electrical Machines (ICEM)
Year: 2024 | Conference Paper |
Loss minimization control (LMC) for permanent magnet synchronous motors (PMSMs) improves the efficiency compared to the conventional i_{\mathrm{d}}=0 and maximum torque per ampere (MTPA) control algorithms. Implementation of LMC for electrified non-road mobile machinery (NRMM) such as wheel loaders, excavators etc. is challenging due to parameter sensitivity. To improve the control performance, ...Show More

Loss Minimization Control of PMSM for Electrified Non-Road Mobile Machinery Using Flux and Loss Maps

Chunjie Dai;Hadhiq Khan;Amr A. Abbas;Paavo Rasilo;Tatiana Minav

Year: 2024 | Conference Paper |

An Interpolation Based Meshed Magnetic Equivalent Circuit for Interior Permanent Magnet Synchronous Machines

Ahmed Hemeida;Baocheng Guo;Osemwinyen Osaruyi;Floran Martin;Paavo Rasilo;Ayman S. Abdel-Khalik;Anouar Belahcen

2024 International Conference on Electrical Machines (ICEM)
Year: 2024 | Conference Paper |
This article proposes a new modeling approach for V-shaped interior permanent magnet synchronous motors (IPMSMs) using Lagrange interpolation in mesh-based magnetic equivalent circuits (MECs). The method divides each MEC block in the air gap into several child angles, interpolating flux densities and scalar potentials to ensure smooth induced voltages and torque waveforms. The article introduces a...Show More

An Interpolation Based Meshed Magnetic Equivalent Circuit for Interior Permanent Magnet Synchronous Machines

Ahmed Hemeida;Baocheng Guo;Osemwinyen Osaruyi;Floran Martin;Paavo Rasilo;Ayman S. Abdel-Khalik;Anouar Belahcen

Year: 2024 | Conference Paper |

Macroscopic Modeling of Mn–Zn Ferrites Based on Analytical Dynamic Material Models

Reda Elkhadrawy;Joonas Vesa;Vasiliki Tsakaloudi;Paavo Rasilo

IEEE Transactions on Magnetics
Year: 2024 | Volume: 60, Issue: 12 | Journal Article |
Cited by: Papers (1)
We propose a semi-analytical approach for modeling the macroscopic electromagnetic behavior of Mn–Zn ferrite cores under both dielectric and magnetic excitations. First, analytical material models are provided for calculating the effective parameters, i.e., complex resistivity and complex reluctivity by solving the electromagnetic fields in a single simplified grain and its boundary layer. The eff...Show More

Macroscopic Modeling of Mn–Zn Ferrites Based on Analytical Dynamic Material Models

Reda Elkhadrawy;Joonas Vesa;Vasiliki Tsakaloudi;Paavo Rasilo

Year: 2024 | Volume: 60, Issue: 12 | Journal Article |

Resistivity Model for Soft Magnetic Composite Materials With Cauer Network Representation

Joonas Vesa;Hajime Igarashi;Antero Marjamäki;Reda Elkhadrawy;Paavo Rasilo

IEEE Transactions on Magnetics
Year: 2024 | Volume: 60, Issue: 12 | Journal Article |
A Cauer network resistivity model is proposed for soft magnetic composite (SMC) materials. The model is immediately available in both time- and frequency domains. The network components are expressed as closed form analytical expressions. The component values and thus the resistivity depend explicitly on the physical and geometric properties of the material, and no empirical fitting parameters are...Show More

Resistivity Model for Soft Magnetic Composite Materials With Cauer Network Representation

Joonas Vesa;Hajime Igarashi;Antero Marjamäki;Reda Elkhadrawy;Paavo Rasilo

Year: 2024 | Volume: 60, Issue: 12 | Journal Article |

Magnetomechanical Multiscale Hysteresis Model of Electrical Steel Sheets in the Finite Element Simulation of a Transformer

F. Martin;J. Taurines;O. Osemwinyen;P. Rasilo;A. Belahcen;L. Daniel

IEEE Transactions on Magnetics
Year: 2024 | Volume: 60, Issue: 12 | Journal Article |
In this article, a multiscale model incorporates an energy-based hysteresis model for ferromagnetic material. The coherent rotational phenomena are considered by letting the magnetic domains rotate with the applied field. Hence, the drop of the hysteresis losses under increasing rotational flux density can be modeled properly without any additional artifacts. The model parameters are identified fr...Show More

Magnetomechanical Multiscale Hysteresis Model of Electrical Steel Sheets in the Finite Element Simulation of a Transformer

F. Martin;J. Taurines;O. Osemwinyen;P. Rasilo;A. Belahcen;L. Daniel

Year: 2024 | Volume: 60, Issue: 12 | Journal Article |

Model Order Reduction for Multi-Strand Electrical Machine Windings

Rainer Schneckenleitner;Paavo Rasilo

IEEE Transactions on Magnetics
Year: 2024 | Volume: 60, Issue: 9 | Journal Article |
We develop an efficient model order reduction (MOR) method for the finite-element (FE) simulation of an electrical machine with a multi-strand stator winding. The reduced model is independent of the connection of the strands. Therefore, simulation results of only a single slot are required to compute a reduced basis, which can be used for different winding configurations. Numerical simulations of ...Show More

Model Order Reduction for Multi-Strand Electrical Machine Windings

Rainer Schneckenleitner;Paavo Rasilo

Year: 2024 | Volume: 60, Issue: 9 | Journal Article |

Macroscopic Modeling of Mn-Zn Ferrites Based on Analytical Dynamic Material Models

Reda Elkhadrawy;Vasiliki Tsakaloudi;Joonas Vesa;Paavo Rasilo

2024 IEEE 21st Biennial Conference on Electromagnetic Field Computation (CEFC)
Year: 2024 | Conference Paper |
Cited by: Papers (1)
We propose a semi-analytical approach for modelling the macroscopic electromagnetic behavior of Mn-Zn ferrite cores while placed in both dielectric and magnetic settings. First, analytical material models are provided for calculating the effective parameters, i.e., complex resistivity and complex reluctivity by solving the electromagnetic fields in a single grain/boundary cell. Then, the effective...Show More

Macroscopic Modeling of Mn-Zn Ferrites Based on Analytical Dynamic Material Models

Reda Elkhadrawy;Vasiliki Tsakaloudi;Joonas Vesa;Paavo Rasilo

Year: 2024 | Conference Paper |

Local Resistivity Model for Soft Magnetic Composite Materials

Joonas Vesa;Antero Marjamäki;Reda Elkhadrawy;Hajime Igarashi;Paavo Rasilo

2024 IEEE 21st Biennial Conference on Electromagnetic Field Computation (CEFC)
Year: 2024 | Conference Paper |
A resistivity model is proposed for soft magnetic composite materials. The model is complex-valued, but it has a time domain extension as a Cauer network. The model is expressed as a closed-form analytical expression. The resistivity depends explicitly on the physical and geometric properties of the material, and no empirical fitting parameters are introduced. Together with a similar kind of local...Show More

Local Resistivity Model for Soft Magnetic Composite Materials

Joonas Vesa;Antero Marjamäki;Reda Elkhadrawy;Hajime Igarashi;Paavo Rasilo

Year: 2024 | Conference Paper |

Multiscale Thin Shell Finite Element Model for Mn-Zn Ferrites with Realistic Grain Structure

Reda Elkhadrawy;Joonas Vesa;Janne Ruuskanen;Timo Tarhasaari;Vasiliki Tsakaloudi;Paavo Rasilo

2024 IEEE 21st Biennial Conference on Electromagnetic Field Computation (CEFC)
Year: 2024 | Conference Paper |
In this paper, a novel approach is presented for high-frequency electromagnetic modeling of Mn-Zn ferrites while considering their realistic heterogeneous microstructure. The proposed approach is based on a multiscale finite element model utilizing thin shell elements for virtually discretizing the boundaries. The realistic microstructure is considered in the sense that the mesocell geometry has a...Show More

Multiscale Thin Shell Finite Element Model for Mn-Zn Ferrites with Realistic Grain Structure

Reda Elkhadrawy;Joonas Vesa;Janne Ruuskanen;Timo Tarhasaari;Vasiliki Tsakaloudi;Paavo Rasilo

Year: 2024 | Conference Paper |

Multiscale Hysteresis Model of Electrical Steel Sheet in Finite Element Simulation of Transformer

Floran Martin;Julien Taurines;Paavo Rasilo;Anouar Belahcen;Laurent Daniel

2024 IEEE 21st Biennial Conference on Electromagnetic Field Computation (CEFC)
Year: 2024 | Conference Paper |
In this abstract, the multiscale model incorporates an energy based hysteresis model for ferromagnetic material. The coherent rotational phenomena are considered by letting the magnetic domains rotates with the applied field. Finally, the model of steel sheets is simulated in a finite element model of a transformer.Show More

Multiscale Hysteresis Model of Electrical Steel Sheet in Finite Element Simulation of Transformer

Floran Martin;Julien Taurines;Paavo Rasilo;Anouar Belahcen;Laurent Daniel

Year: 2024 | Conference Paper |

2-D Axisymmetric FEM-Based Approach for Identifying Dimension- and Frequency-Independent Material Parameters of Mn-Zn Ferrites

Reda Elkhadrawy;Joonas Vesa;Timo Tarhasaari;Vasiliki Tsakaloudi;Paavo Rasilo

IEEE Transactions on Magnetics
Year: 2024 | Volume: 60, Issue: 10 | Journal Article |
Cited by: Papers (2)
A 2-D axisymmetric finite element (FE) method (FEM)-based approach is presented for identifying intrinsic, dimension- and frequency-independent, electromagnetic material parameters of Mn-Zn ferrite cores. The parameters include the dc conductivity, complex permittivity, and complex permeability for both the grains and the grain-boundaries. The FE model is utilized for solving the full-wave electro...Show More

2-D Axisymmetric FEM-Based Approach for Identifying Dimension- and Frequency-Independent Material Parameters of Mn-Zn Ferrites

Reda Elkhadrawy;Joonas Vesa;Timo Tarhasaari;Vasiliki Tsakaloudi;Paavo Rasilo

Year: 2024 | Volume: 60, Issue: 10 | Journal Article |

Influence of Resonant Circuits on Optimal Design of Magnetostrictive Energy Harvester in Free Vibration

Yoshito Mizukawa;Jesse Ranta;Umair Ahmed;David Blažević;Paavo Rasilo

IEEE Transactions on Magnetics
Year: 2024 | Volume: 60, Issue: 8 | Journal Article |
This article presents a novel modeling method for a magnetostrictive energy harvester connected to a resonant circuit. The method is based on analytical calculations coupled with experimental parameter identifications. The magnetic flux leakages from the pickup coil and the magnetostrictive material are considered. Under the assumptions of linearity and fundamental oscillation, the governing equat...Show More

Influence of Resonant Circuits on Optimal Design of Magnetostrictive Energy Harvester in Free Vibration

Yoshito Mizukawa;Jesse Ranta;Umair Ahmed;David Blažević;Paavo Rasilo

Year: 2024 | Volume: 60, Issue: 8 | Journal Article |

Thermodynamically Consistent Magnetic Hysteresis Model—Application to Soft and Hard Magnetic Materials Including Minor Loops

J. Taurines;F. Martin;P. Rasilo;A. Belahcen

IEEE Transactions on Magnetics
Year: 2024 | Volume: 60, Issue: 7 | Journal Article |
A novel thermodynamically consistent macroscopic magnetic hysteresis model is presented. Magnetization is calculated from the reversible part of the magnetic field, while the evolution law of the irreversible part involves physically meaningful material constants: the coercive field and the initial susceptibilities of the hysteretic and anhysteretic curves. It is possible to invert the model throu...Show More

Thermodynamically Consistent Magnetic Hysteresis Model—Application to Soft and Hard Magnetic Materials Including Minor Loops

J. Taurines;F. Martin;P. Rasilo;A. Belahcen

Year: 2024 | Volume: 60, Issue: 7 | Journal Article |

Fast and Accurate Non-Linear Model for Synchronous Machines Including Core Losses

Amr A. Abbas;Joonas Vesa;Hadhiq Khan;Hao Chen;Yujing Liu;Paavo Rasilo

IEEE Transactions on Energy Conversion
Year: 2024 | Volume: 39, Issue: 4 | Journal Article |
Cited by: Papers (1)
This paper presents a fast and accurate state-space model for synchronous machines taking into consideration the machine geometry, material non-linearities and core losses. The model is first constructed by storing the solutions of multiple static finite element (FE) simulations into lookup-tables (LUTs) to express the stator flux linkages as functions of the state variables, i.e., the winding cur...Show More

Fast and Accurate Non-Linear Model for Synchronous Machines Including Core Losses

Amr A. Abbas;Joonas Vesa;Hadhiq Khan;Hao Chen;Yujing Liu;Paavo Rasilo

Year: 2024 | Volume: 39, Issue: 4 | Journal Article |

High-Frequency Modeling of Granular Soft Magnetic Materials With Local Model Order Reduction

Antero Marjamäki;Rainer Schneckenleitner;Reda Elkhadrawy;Paavo Rasilo

IEEE Transactions on Magnetics
Year: 2024 | Volume: 60, Issue: 3 | Journal Article |
Cited by: Papers (1)
A full-wave electromagnetic field equation in a cross section of a ferrite core, modeled as an array of grains, is solved with the finite element (FE) method utilizing local model order reduction (LMOR) techniques. With the traditional FE method and a high number of grains, the resulting system becomes resource-intensive. The reduced approach greatly decreases the amount of degrees of freedom (DOF...Show More

High-Frequency Modeling of Granular Soft Magnetic Materials With Local Model Order Reduction

Antero Marjamäki;Rainer Schneckenleitner;Reda Elkhadrawy;Paavo Rasilo

Year: 2024 | Volume: 60, Issue: 3 | Journal Article |

Magnetic Equivalent Circuit and Lagrange Interpolation Function Modeling of Induction Machines Under Broken Bar Faults

Ahmed Hemeida;Md Masum Billah;Karolina Kudelina;Bilal Asad;Muhammad U Naseer;Baocheng Guo;Floran Martin;Paavo Rasilo;Anouar Belahcen

IEEE Transactions on Magnetics
Year: 2024 | Volume: 60, Issue: 3 | Journal Article |
Cited by: Papers (2)
This article introduces a mesh-based magnetic equivalent circuit (MEC) modeling technique for induction machines (IMs) in healthy and broken rotor bars conditions. The MEC model is presented as a highly accurate and computationally efficient alternative to finite element (FE) models. By incorporating modifications to the air gap coupling method, including a new Lagrange interpolation function, and...Show More

Magnetic Equivalent Circuit and Lagrange Interpolation Function Modeling of Induction Machines Under Broken Bar Faults

Ahmed Hemeida;Md Masum Billah;Karolina Kudelina;Bilal Asad;Muhammad U Naseer;Baocheng Guo;Floran Martin;Paavo Rasilo;Anouar Belahcen

Year: 2024 | Volume: 60, Issue: 3 | Journal Article |

Eddy-Current Loss Model for Soft Magnetic Composite Materials Considering Particle Size Distribution

Joonas Vesa;Leo Hyvärinen;Paavo Rasilo

IEEE Transactions on Magnetics
Year: 2023 | Volume: 59, Issue: 7 | Journal Article |
Cited by: Papers (10)
Dynamic magnetization curves of soft magnetic materials are often written in terms of magnetic flux density $b$ and magnetic field strength $h$ as $h = \mathcal {H}(b) + c {\text {d} b}/{\text {d} t}$ , where $\mathcal {H}$ is a static magnetization model and $c$ is a real number describing eddy-current effects. In this article, an analytical derivation for $c$ is presented for soft mag...Show More

Eddy-Current Loss Model for Soft Magnetic Composite Materials Considering Particle Size Distribution

Joonas Vesa;Leo Hyvärinen;Paavo Rasilo

Year: 2023 | Volume: 59, Issue: 7 | Journal Article |

Modeling Eddy Current Losses in HTS Tapes Using Multiharmonic Method

J. Ruuskanen;M. Lyly;A. Halbach;T. Tarhasaari;V. Lahtinen;T. Salmi;P. Rasilo

IEEE Transactions on Applied Superconductivity
Year: 2023 | Volume: 33, Issue: 5 | Journal Article |
Cited by: Papers (1)
Due to the highly nonlinear electrical resistivity of high temperature superconducting (HTS) materials, computing the steady-state eddy current losses in HTS tapes, under time-periodic alternating current excitation, can be time consuming when using a time-transient method (TTM). The computation can require several periods to be solved with a small time-step. One alternative to the TTM is the mult...Show More

Modeling Eddy Current Losses in HTS Tapes Using Multiharmonic Method

J. Ruuskanen;M. Lyly;A. Halbach;T. Tarhasaari;V. Lahtinen;T. Salmi;P. Rasilo

Year: 2023 | Volume: 33, Issue: 5 | Journal Article |

Coupled 2-D FEM and 1-D Micromagnetic Model for Transverse Anisotropy Tape-Wound Magnetic Cores

Elias Paakkunainen;Lasse Laurson;Paavo Rasilo

IEEE Transactions on Magnetics
Year: 2023 | Volume: 59, Issue: 5 | Journal Article |
We present a new approach for modeling high-frequency losses in transverse anisotropy magnetic tapes by solving a 1-D eddy-current problem coupled to a micromagnetic constitutive law. Contrary to earlier models, the model is derived using a magnetic flux density conforming formulation. The model allows coupling the tape-level magnetization process to a 2-D finite element model for analyzing larger...Show More

Coupled 2-D FEM and 1-D Micromagnetic Model for Transverse Anisotropy Tape-Wound Magnetic Cores

Elias Paakkunainen;Lasse Laurson;Paavo Rasilo

Year: 2023 | Volume: 59, Issue: 5 | Journal Article |

Utilizing Helicoidal and Translational Symmetries Together in 2-D Models of Twisted Litz Wire Strand Bundles

Antero Marjamäki;Timo Tarhasaari;Paavo Rasilo

IEEE Transactions on Magnetics
Year: 2023 | Volume: 59, Issue: 5 | Journal Article |
Cited by: Papers (3)
In this article, a helicoidally symmetric 2-D model of a twisted litz wire strand bundle is studied. Suitable foundations for compatibility tools are presented to use such a model as a part of a larger system which does not follow a helicoidal symmetry. A measure for the symmetricity of a field is proposed. This provides the foundations for the coupling of helicoidally symmetric and translationall...Show More

Utilizing Helicoidal and Translational Symmetries Together in 2-D Models of Twisted Litz Wire Strand Bundles

Antero Marjamäki;Timo Tarhasaari;Paavo Rasilo

Year: 2023 | Volume: 59, Issue: 5 | Journal Article |

Magnetic Field Upscaling and B-Conforming Magnetoquasistatic Multiscale Formulation

Antoine Marteau;Innocent Niyonzima;Gérard Meunier;Janne Ruuskanen;Nicolas Galopin;Paavo Rasilo;Olivier Chadebec

IEEE Transactions on Magnetics
Year: 2023 | Volume: 59, Issue: 5 | Journal Article |
Cited by: Papers (2)
This article proposes two novel methods for upscaling the macroscopic magnetic field strength from the local solutions of B-conforming magnetoquasistatic multiscale problems. Unlike the volume average method classically used, these methods yield accurate values of the macroscale magnetic field for problems with strong locally confined eddy currents, which enables B-conforming multiscale formulatio...Show More

Magnetic Field Upscaling and B-Conforming Magnetoquasistatic Multiscale Formulation

Antoine Marteau;Innocent Niyonzima;Gérard Meunier;Janne Ruuskanen;Nicolas Galopin;Paavo Rasilo;Olivier Chadebec

Year: 2023 | Volume: 59, Issue: 5 | Journal Article |

Identification of Coupling Coefficient and Load Resistance for Control of Wireless Power Transfer Systems

Ali Zakerian;Prasad Jayathurathnage;Tomi Roinila;Paavo Rasilo

IECON 2022 – 48th Annual Conference of the IEEE Industrial Electronics Society
Year: 2022 | Conference Paper |
Inductive wireless power transfer has become one of the most important emerging technologies in electric-vehicle applications. Important parameters in such technology are the variable coupling coefficient and equivalent load resistance that depend on the relative position of the coils and the load power, respectively. These parameter values are needed to optimize the system performance. This work ...Show More

Identification of Coupling Coefficient and Load Resistance for Control of Wireless Power Transfer Systems

Ali Zakerian;Prasad Jayathurathnage;Tomi Roinila;Paavo Rasilo

Year: 2022 | Conference Paper |

Magnetic Field Upscaling and B-Conforming Magnetodynamic Multiscale Formulation

Antoine Marteau;Innocent Niyonzima;Gérard Meunier;Janne Ruuskanen;Olivier Chadebec;Nicolas Galopin;Paavo Rasilo

2022 IEEE 20th Biennial Conference on Electromagnetic Field Computation (CEFC)
Year: 2022 | Conference Paper |
This paper proposes two novel methods for upscaling the macroscopic magnetic field from the local solutions in magneto dynamic multiscale problems. Unlike the volume average method classically used, these methods yield accurate values of the macroscale magnetic field for problems with strong locally-confined eddy currents which enables B-conforming multiscale formulations of eddy current problems ...Show More

Magnetic Field Upscaling and B-Conforming Magnetodynamic Multiscale Formulation

Antoine Marteau;Innocent Niyonzima;Gérard Meunier;Janne Ruuskanen;Olivier Chadebec;Nicolas Galopin;Paavo Rasilo

Year: 2022 | Conference Paper |

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