Permanent magnet machines (PMs) are common in electric and hybrid vehicles, renewable energy and other industrial applications. These utilize permanent magnets made from rare earth materials (such as ...
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Rare earth magnets, like neodymium and dysprosium, are used in permanent magnet (PM) motors found in wind turbines and hybrid/electric vehicles. The cost of rare earth materials is escalating because ...
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The induction machine is by far the most heavily used industrial motor, and ranges in size from a fraction of a horsepower to more than a megawatt. It produces torque by the electromagnetic interactio...
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Permanent magnet (PM) machines are used in today’s hybrid and electric vehicles due to their ideal performance characteristics. However, due to cost uncertainty and overseas sourcing, other types of...
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The vernier permanent magnet (VPM) machine first appeared about 20 years ago. This motor has the potential to create torque well beyond other types of permanent magnet machines and compete with rare e...
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An electric machine includes a rotor, permanent magnets, a stator, and a stator winding wound about a plurality of teeth to form a number of stator magnetic poles. The rotor includes a rotor core and ...
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A continuing need exists for compact, efficient, inexpensive electrical machines with high torque capability over a large speed range and the ability to control machine speed. This need is particularl...
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Rectifiers are devices that convert alternating current (AC) into direct current (DC). The simplest and least expensive type of rectifier uses a full- or half-bridge of diodes to convert single- or th...
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Existing power machines provide the ability to capture power from a mechanically rotating source, such as a wind turbine. One example of such power machines is the synchronous motor, which contains a ...
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