Design of a permanent magnet radial flux concentrated coil generator for a range extender application
Peec‐Power B.V. is developing a high power range extender for the automotive sector. In this range extender combustion engine and generator...
https://homemade-generator-tao.blogspot.com/2019/09/design-of-permanent-magnet-radial-flux-concentrated-coil-generator.html
Peec‐Power B.V. is developing a high power range extender for the automotive sector. In this range extender combustion engine and generator are integrated. This thesis deals with the development of the integrated generator.
Generator construction types are discussed. This includes the machine excitation, construction types, winding arrangements, rotor constructions, and the use of different permanent magnet
materials.
Analytical models are developed for permanent magnet radial flux concentrated coil machines. The derived models are validated with the use of finite element method (FEM) models. Using the analytical models an optimizing routine is developed for finding optimal machine geometries according a given set of design criteria.
A generator with concentrated coil fractional pitch windings with a multiple of 9 coils around 9 teeth and 8 magnet poles is developed.
Also a generator with concentrated coil fractional pitch windings with a multiple of 3 coils around 3 teeth with 2 magnet poles is developed. Also two different rotors are developed for the generators. One with surface mounted permanent magnets and one with V‐shape inset mounted permanent magnets.
With use of the developed analytical models and FEM models, calculations are performed on both generator designs. Calculations include the magnetic parameters, including the flux density distribution at different places in the machine. Calculations also include the electric parameters, including the no‐load voltage due to the permanent magnets, resistance and inductance components and output characteristics. Calculations on the machines starting behavior have been performed, including the non linear effects of the steel. Generator losses are modeled, including copper losses, stator iron losses and magnet losses due to the space harmonic content
of the armature magnetic field.
The developed machines are in production and will soon be ready to be tested in the lab.
Download (pdf): Design of a permanent magnet radial flux concentrated coil generator for a range extender application
A good generator design is dependant of good modeling work. Therefore I have spent much of my time, during the last months, on generator modeling. During the development of the generator models I frequently got new ideas and insight, which forced me to adapt my models and make them more accurate. I discovered that modeling is an endless business. It is always possible to make a model more accurate, but also more complex at the same time. At some point I had to stop modeling and use my models to generate the designs. I learned that modeling is only an attempt to describe nature and use these descriptions to predict the future.
Since models only approximate reality there is always the question of how precise a model must be. A trade off between accuracy and complexity must be made. First of all I want to thank my daily supervisor, Henk Polinder, associate professor at TU Delft, for all these things I have learned. He showed me the way in the world of generators and was always there to provide guidance when it was needed. I also want to thank Dirk Toeters, director of the Peec‐Power B.V. company, for providing me the opportunity and freedom to develop a generator for their range extender prototype. His confidence in my work was a big support. Further I want to thank all other people who supported me in any way during the last moths, without their help and support I would not have reached this far.
Learn more:
Generator construction types are discussed. This includes the machine excitation, construction types, winding arrangements, rotor constructions, and the use of different permanent magnet
materials.
Analytical models are developed for permanent magnet radial flux concentrated coil machines. The derived models are validated with the use of finite element method (FEM) models. Using the analytical models an optimizing routine is developed for finding optimal machine geometries according a given set of design criteria.
A generator with concentrated coil fractional pitch windings with a multiple of 9 coils around 9 teeth and 8 magnet poles is developed.
Also a generator with concentrated coil fractional pitch windings with a multiple of 3 coils around 3 teeth with 2 magnet poles is developed. Also two different rotors are developed for the generators. One with surface mounted permanent magnets and one with V‐shape inset mounted permanent magnets.
With use of the developed analytical models and FEM models, calculations are performed on both generator designs. Calculations include the magnetic parameters, including the flux density distribution at different places in the machine. Calculations also include the electric parameters, including the no‐load voltage due to the permanent magnets, resistance and inductance components and output characteristics. Calculations on the machines starting behavior have been performed, including the non linear effects of the steel. Generator losses are modeled, including copper losses, stator iron losses and magnet losses due to the space harmonic content
of the armature magnetic field.
The developed machines are in production and will soon be ready to be tested in the lab.
Download (pdf): Design of a permanent magnet radial flux concentrated coil generator for a range extender application
A good generator design is dependant of good modeling work. Therefore I have spent much of my time, during the last months, on generator modeling. During the development of the generator models I frequently got new ideas and insight, which forced me to adapt my models and make them more accurate. I discovered that modeling is an endless business. It is always possible to make a model more accurate, but also more complex at the same time. At some point I had to stop modeling and use my models to generate the designs. I learned that modeling is only an attempt to describe nature and use these descriptions to predict the future.
Since models only approximate reality there is always the question of how precise a model must be. A trade off between accuracy and complexity must be made. First of all I want to thank my daily supervisor, Henk Polinder, associate professor at TU Delft, for all these things I have learned. He showed me the way in the world of generators and was always there to provide guidance when it was needed. I also want to thank Dirk Toeters, director of the Peec‐Power B.V. company, for providing me the opportunity and freedom to develop a generator for their range extender prototype. His confidence in my work was a big support. Further I want to thank all other people who supported me in any way during the last moths, without their help and support I would not have reached this far.
Special Note: Posting of this document on Blog does not imply approval or disapproval by the Department of Energy. This work is made available to illustrate innovative energy research by multiple researchers involving new concepts. Scientific method requires replication and independent test and verification, and an additional research prototype build-up for those purposes is presently underway by the authors.
Revealed At Last: Ancient Invention Generates Energy-On-Demand
✔ Nikola Tesla’s method of magnifying electric power by neutralizing the magnetic counter-forces in an electric generator
✔ Currents are 180 out of phase with each other, Lenz's law naturally is broken
✔ Principle of Resonance to achieve Overunity
Revealed At Last: Ancient Invention Generates Energy-On-Demand
✔ Nikola Tesla’s method of magnifying electric power by neutralizing the magnetic counter-forces in an electric generator
Generates Energy-On-Demand: Easy Power Plan Will Change Our World Forever
✔ Currents are 180 out of phase with each other, Lenz's law naturally is broken
✔ Principle of Resonance to achieve Overunity
Learn more:
