Antti Lehikoinen

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SRM vs SynRM Performance Basics

SRM vs SynRM Performance Basics

Antti (admin) 1st November 20181st November 2018 Electrical engineering, Research and work No Comments

Which one is better – an SRM or a SynRM? You won’t find the answer here, but you’ll get some tools to make the decision yourself.

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Switched and Synchronous Reluctance Machines

Switched and Synchronous Reluctance Machines

Antti (admin) 25th September 201825th September 2018 Electrical engineering, Research and work 6 Comments

Ever wondered what switched and synchronous reluctance machines are? Well, this post here covers the basics – how they work and where they differ.

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What are BLDC motors?

What are BLDC motors?

Antti (admin) 8th September 20189th September 2018 Electrical engineering, Research and work 8 Comments

What are BLDC motors? And how do they differ from AC motors? Why do people keep using such contradictory terms and confusing us?

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Maglev Systems – How to model them analytically?

Maglev Systems – How to model them analytically?

Antti (admin) 14th July 201816th July 2018 Electrical engineering, FEM, Research and work No Comments

Maglev – magnetic levitation – systems can be quite different from electric motors. So how to model them without time-consuming 3D simulations?

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Video: Circulating and eddy currents with PWM supply

Video: Circulating and eddy currents with PWM supply

Antti (admin) 11th June 2018 Aalto Electromechanics, Electrical engineering, FEM, Matlab, Research and work 2 Comments

Circulating and eddy currents combined with PWM supply, illustrated with a nice video. What more could you wish for, really?

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How a self-levitating motor works

How a self-levitating motor works

Antti (admin) 2nd June 2018 Electrical engineering, Research and work No Comments

An active magnetic bearing system can be directly integrated into an electric motor, resulting in a self-levitating motor. Here’s how it works.

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Circulating currents – Post-it version

Antti (admin) 29th April 201829th April 2018 Electrical engineering, Research and work No Comments

What are circulating currents, why are random-wound windings called random, why should you care? Find out here, with convenient bullet points!

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Introduction to active magnetic bearings (AMB)

Introduction to active magnetic bearings (AMB)

Antti (admin) 25th April 2018 Electrical engineering, Research and work 3 Comments

Active magnetic bearings are widely used in high-speed machines and sensitive environments both. Here’s what they are, and how they work.

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Options for (Analytical) Torque Computation – Part 3

Options for (Analytical) Torque Computation – Part 3

Antti (admin) 21st March 20182nd April 2018 Electrical engineering, Research and work No Comments

A commonly-used approach for torque computation utilizes the virtual work principle. Here’s what it is, and what options you have with it.

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Options for (analytical) torque computation, part 2

Options for (analytical) torque computation, part 2

Antti (admin) 5th March 201821st March 2018 Electrical engineering, Research and work 2 Comments

More methods for analytical torque computation. Somewhat more advanced than previously, but still simple and fast. A little more versatile, too.

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Recent Posts

  • On Eddy-Current Iron Losses
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