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Rotary transformer wiring self-detection system

A resolver and self-inspection technology, which is applied in transformer testing, electrical connection testing, motor generator testing, etc., can solve problems such as permanent magnet direct drive motors not being able to start, improve debugging efficiency, reduce system costs, and avoid errors Effect

Active Publication Date: 2020-02-14
CRRC YONGJI ELECTRIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In order to solve the problem that the permanent magnet direct drive motor cannot be started due to the wrong wiring sequence of the resolver, the present invention proposes a resolver wiring self-inspection system

Method used

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  • Rotary transformer wiring self-detection system
  • Rotary transformer wiring self-detection system

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Embodiment Construction

[0035]In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be described in detail below. Apparently, the described embodiments are only some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other implementations obtained by persons of ordinary skill in the art without making creative efforts fall within the protection scope of the present invention.

[0036] The technical solution of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0037] The present invention corrects the angle deviation caused by the wrong wiring of the resolver through the wiring sequence identification module, and can start and run the permanent magnet synchronous motor normally when the resolver is wrongly connected. The control process of the present invention is as follows figure ...

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Abstract

The invention relates to the technical field of permanent magnet synchronous motor control, in particular to a rotary transformer wiring self-detection system. The system comprises a DSP controller, an excitation signal amplifying and filtering circuit, a rotary transformer and a sine and cosine signal conditioning circuit, wherein a program part of the DSP controller comprises an all-digital RDCdecoding module, a wiring order recognition module and a motor control algorithm part. Through a rotary transformer wiring self-detection method, an actual wiring order can be identified through the wiring order recognition module under the situation that the wiring order of the rotary transformer is wrong, the current wiring order is subjected to automatic compensation to discriminate the deviation of a rotor position from an actual rotor position, so that a permanent magnet synchronous motor is normally started and run, the situation that debugging personnel spend a large amount of time andeffort searching for a wiring error of the rotary transformer on site is avoided, and field debugging efficiency is improved. The system is also suitable for all permanent magnet synchronous motor application occasions where the rotary transformer is used as a position sensor.

Description

technical field [0001] The invention relates to the technical field of permanent magnet synchronous motor control, in particular to a rotary transformer wiring self-inspection system. Background technique [0002] The permanent magnet synchronous traction system has significant advantages such as low loss, high efficiency, good starting characteristics, strong acceleration performance, and low noise. It represents the future technological development trend of energy saving, emission reduction, and environmental protection, and has become the development direction of the next generation of traction systems. Direct transmission technology has the advantages of solving transmission loss, noise and maintenance problems, reducing the overall weight of the vehicle, improving transmission efficiency, and providing more free space for bogie design. At present, the high-power permanent magnet direct-drive electric locomotive jointly operated by CRRC Yongji Electric Co., Ltd. and Dato...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/62G01R31/67G01R31/34
CPCG01R31/34
Inventor 张瑞峰丁志勇路瑶张吉斌王彬詹哲军梁海刚
Owner CRRC YONGJI ELECTRIC CO LTD
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