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Segmented power supply structure of linear motor

A linear motor, segmented power supply technology, applied in the direction of AC motor control, electrical components, control systems, etc., can solve the problems of reducing efficiency, increasing the complexity and cost of the power supply system, and increasing the cost and difficulty of design and manufacturing, reducing design and manufacturing. The effect of difficulty and cost

Pending Publication Date: 2019-11-05
HIWING TECH ACAD OF CASIC
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Problems solved by technology

[0004] The above-mentioned first method is limited by the withstand voltage level of the power device, and the cost and design and manufacture difficulty of the high output voltage converter above a certain voltage level will increase significantly; the second method is due to the existence of the output transformer. Increase the complexity and cost of the entire power supply system, and at the same time, the power factor of the power supply system will decrease due to the leakage inductance of the transformer itself, reducing the overall efficiency

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  • Segmented power supply structure of linear motor
  • Segmented power supply structure of linear motor
  • Segmented power supply structure of linear motor

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Embodiment Construction

[0027] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0028] Those skilled in the art will understand that unless otherwise stated, the singular forms "a", "an", "said" and "the" used herein may also include plural forms. It should be further understood that the word "comprising" used in the description of the present invention refers to the presence of said features, integers, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more o...

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Abstract

The invention provides a segmented power supply structure of a linear motor. The segmented power supply structure of the linear motor comprises a linear motor primary stage, a main converter set, a first hot backup converter set and a power supply system, wherein the linear motor primary stage comprises a plurality of linear motor segmented stators; the plurality of linear motor segmented statorsare connected in parallel or in series through a cable and a switching switch to form multiple segments of independent power supply intervals; the main converter set supplies power to the power supplyintervals of the linear motor primary stage; the first hot backup converter set at least comprises a first hot backup converter; the first hot backup converter serves as a first-stage backup converter, is cascaded with each converter in the main converter set through the switching switch, and is used for performing cascade power supply on the linear motor primary stage; and the power supply system is connected with the main converter set and each converter in the first hot backup converter set and is used for supplying power to each converter. According to the segmented power supply structure, cascade output of the plurality of converters is realized through the switching switch, so that the requirement of a high-output voltage at a high-speed operation stage is met.

Description

technical field [0001] The invention relates to the technical field of electromagnetic propulsion, in particular to a segmented power supply structure of a linear motor. Background technique [0002] In the field of electromagnetic propulsion of linear motors for large-mass objects, such as high-speed maglev trains, carrier-based aircraft ejection and other applications with long propulsion strokes, in order to improve the efficiency and power factor of the electromagnetic launch system and reduce the system's demand for power capacity, it is often necessary to adopt split Segment power supply technology, using the position sensor to detect the moving position of the mover in real time, and switch the electrified stator section in real time, so that the adjacent stator modules coupled with the mover are energized, while other stator modules are not energized. With the continuous improvement of the emission exit speed, even if the segmented power supply method is adopted, the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02P25/06
CPCH02P25/06
Inventor 马逊毛凯张艳清张志华张庆杰
Owner HIWING TECH ACAD OF CASIC
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