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Motors & Generators

BLDC
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Reducing the Eddy Current Losses in Permanent Magnets by Segmentation

In this example, MagNet is used to investigate the effect of segmentation on a surface mounted permanent magnet machine. Historically, very thin insulation layers, which were hard to model and mesh in a FEA environment, were employed to separate the permanent magnet segments. Fortunately, this no longer needs to be the case, as MagNet provides a very simple method to model the insulation layer by using a perfect electric insulator boundary condition."

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Spray Cooling for the 2010 Prius

Motor design requirements often require some form of cooling. The thermal simulation capability in MotorSolve allows designers to explore the behavior of their motors with cooling, and in particular Spray Cooling. The Prius revolutionized the Electric Vehicle in 2004, and the latest revisions to the motor in 2010 continue to show the need for Spray Cooling in order to keep the components of the motor in safe operating conditions.

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Motor Design Improvement by Hardware-In-Loop Simulation using MotorSolve and Opal-RT

Model-based design is a very common idea. It simply consists of using a block diagram of a system to describe it's behavior, and then to design relative to that description. In particular design specifications are evaluated through system simulation. The big advantages are that it allows for a better integration of components so problems are identified early and also allows the design of a component to be tuned to the system as a whole.

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MotorSolve BLDC Thermal Overview

Design specifications for electric machines are requiring more than ever that the optimum design consider multiple disciplines of physics. The thermal behavior for instance can significantly impact the magnetic response of a machine especially with extended operation. How long will the insulation last? Will the permanent magnets demagnetize? Will the current density require additional cooling? What cooling configuration[s] will work? MotoSolve capabilities allow the designer to couple magnetic and thermal responses to determine the optimum machine.

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AC Synchronous Reluctance Machine for Traction Application

In this example, a 55 KW traction motor is designed using a stator that was originally designed for a squirrel cage induction motor for a similar output rating and application. The design of the new machine uses the stator of the induction machine and only the rotor geometrical parameters and configurations are used as free design parameters to achieve the target performance criterion.

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Flux weakening of variable speed drives and comparison of CPSR in synchronous machines

Variable speed drives generally require electric machines to deliver constant power over a wide speed range and IPMs are known to have the best extended CPSR characteristics

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Wound Rotor Synchronous Machine for Traction Application

An example of an 8 pole 48 slot wound rotor motor is considered for traction based on the design of a similar interior permanent magnet (IPM) machine.

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Battery Charging with Maximal Peak Power Tracking

A maximal peak power tracking (MPPT) example for wind power plant is implemented in this example. The load is a battery that is subjected to a variable speed realistic wind profile. The system simulated consist of the following components; a wind turbine, a planetary gear system, a generator, a load (battery) and a 3-phase bridge regulator for the generator.

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