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Non-contact motor braking time measuring device

A technology for motor braking and time measurement, applied in the field of testing, can solve the problems of not meeting the detection requirements, being expensive, and unable to fully analyze the dynamic performance of the motor drive system, and achieving the effect of precise synchronization of triggering and time measurement

Pending Publication Date: 2022-07-08
TAIZHOU PROD QUALITY & SAFETY TESTING RES INST
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  • Description
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AI Technical Summary

Problems solved by technology

[0004] The traditional motor performance testing equipment is mainly a motor testing system (dynamometer), which requires high installation environment and maintenance, and is large in size and expensive
The dynamometer can accurately measure motor parameters such as speed, torque and power, but because its loading part is connected to the motor coaxially, it cannot effectively measure dynamic parameters such as motor inertia, damping coefficient and braking time, and cannot comprehensively analyze the motor drive system. Dynamic performance, so it does not meet the detection requirements of production machinery and electric vehicles for the dynamic performance of motors

Method used

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Embodiment Construction

[0016] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0017] During the dynamic operation of the motor system, the measurement process of the detection device needs to strictly match the action process of the device under test, which puts forward requirements on the synchronization between the start time of the motor s...

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Abstract

The invention discloses a non-contact motor braking time measuring device which comprises a current detection module, a rotating speed detection module and a main control module. The master control module comprises a single-chip microcomputer and a braking time analysis algorithm running on the single-chip microcomputer, and the braking time analysis algorithm determines a test starting moment by verifying the effective current of the wire inlet end of the motor and determines a test ending moment by detecting the real-time rotating speed of a motor rotor. Therefore, accurate synchronous triggering and time metering of the dynamic process of the motor can be realized.

Description

technical field [0001] The invention belongs to the technical field of testing, in particular to a motor performance testing device. Background technique [0002] As the core executive component of electrical automation equipment, the motor's energy efficiency performance, operation performance, noise performance and safety performance determine the overall quality and energy efficiency of electrical equipment. Taking the energy conversion efficiency of the motor from 95% to 97% as an example, the ineffective carbon emissions The amount is reduced by 40%, and the carbon reduction effect is obvious. [0003] In production machinery such as rolling mills, hoists, gantry planers, and transportation equipment such as electrified railway locomotives and electric vehicles, motors often run in conditions of frequent start and stop, variable speed or rapid braking, and their dynamic characteristics are used to measure the running performance. an important indicator. The parameters...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/34H02P3/02
CPCG01R31/34H02P3/02Y02T10/72
Inventor 徐华月翁晓伟黄和平李剑科黄丹
Owner TAIZHOU PROD QUALITY & SAFETY TESTING RES INST
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