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The magnets in an Interior Permanent Magnet (IPM) motor are embedded in the rotor core, where they form narrow regions known as bridges. The thickness of the magnetic bridge is an important parameter to consider in design, both from the electromagnetic and the mechanical perspectives. As ... 詳細を見る

Obtaining the steady-state performance is an essential task for the electric motor designer. As with many electromagnetic devices, the steady-state condition of an electric motor is when electric and magnetic field variations have stabilized to periodic variations. That is when ... 詳細を見る

This tutorial shows how to model the tubular permanent magnet generator in 2D axisymmetry. The generator consists of a modular stationary stator and moving/oscillating slider. The stator is made of three-phase multiturn windings and an iron core. The slider is made of permanent magnets ... 詳細を見る

This tutorial drives a capacitively coupled plasma with an L-type matching network at high and low powers. At low power, where the harmonics in the current are low, prefect matching is obtained at the chosen power value. Sweeps over power, frequency, and pressure are performed and their ... 詳細を見る

This is a primer model of a permanent magnet machine. It is a generic model that can be modified to simulate a motor or generator. It demonstrates different capabilities of COMSOL Multiphysics® to examine aspects of machine design, such as air gap magnetomotive force (MMF), ... 詳細を見る

This model presents the static field modeling of an outward flux focusing magnetic rotor using permanent magnets. This magnetic rotor is also often called a Halbach rotor. The use of permanent magnets in rotatory devices such as motors, generators and magnetic gears is increasing. The ... 詳細を見る

これは, こちらの入手可能な永久磁石モーターモデルの続きです. このモデルでは, 熱伝達解析を実行して, さまざまなステータ電流とローター速度の温度上昇を計算しました. 次に, 初期温度と損失による温度上昇の両方について, トルクと鉄と銅の損失の詳細な解析を実行しました. これにより, 効率マップが抽出され, 温度上昇によって効率がどのように低下するかが示されます. さらに, モデルは瞬間および平均電力バランスのチェックを実行し, 効率マップもトルクと損失の適合を利用して解析的に得られたものと比較されています. 詳しい情報とストーリーはこちらをご覧ください. 詳細を見る

Permanent magnet bearings are used in turbomachinery, pumps, motors, generators, and flywheel energy storage systems, to mention a few application areas; contactless operation, low maintenance, and the ability to operate without lubrication are some key benefits compared to conventional ... 詳細を見る

This is an example of a model of an induction motor in which the eddy currents are induced in the rotor by the time harmonic currents on the stator windings and the rotation of the rotor. In this example, we analyze the induction motor in 2D using the transient solver in the Rotating ... 詳細を見る

This single-phase induction motor model is used to compare with Testing Electromagnetic Analysis Method (TEAM) workshop problem 30. The Magnetic Fields physics interface is used to model the motor in the frequency domain at 60 Hz. The Velocity (Lorentz Term) feature is used to model the ... 詳細を見る