Wide voltage energy-saving type permanent magnet motor power measuring system

Abstract

The invention provides a wide voltage energy-saving type permanent magnet motor power measuring system which comprises a power measuring motor, a power measuring machine controller, an adjustable direct current voltage stabilizing power supply, a force moment sensor, a force moment measuring device and a computer, wherein the power measuring motor adopts a permanent magnet alternative current motor; the power measuring motor is electrically connected with the power measuring machine controller; the power measuring machine controller is electrically connected with the adjustable direct current voltage stabilizing power supply; the force moment sensor is mechanically connected with the power measuring motor; a rotation speed signal is output through a rotation speed measuring device by using the combination of a code disc on a central shaft and an optical coupler; the computer is electrically connected with the power measuring machine controller, the force moment sensor and the rotation speed measuring device respectively; and the power measuring machine controller is used for supplying power to a tested motor and a tested controller after being connected with the adjustable direct current voltage stabilizing power supply in parallel. According to the wide voltage energy-saving type permanent magnet motor power measuring system provided by the invention, the permanent magnet alternative current motor instead of a magnetic powder brake or a magnetic hysteresis brake which is popular in the market is adopted, and a wide working voltage system is adopted so as to measure the power along with various tested controllers and tested motors at different voltage grades, and the consumed type power measurement is changed into generation type power measurement, so that a large quantity of electric energy is saved.

Description

technical field [0001] The present invention relates to a test equipment for motor dynamometer, in particular to a wide-voltage energy-saving permanent magnet motor dynamometer system for small and medium power permanent magnet motors, which adopts a floating installation brake, for example: used to measure electric motorcycle motors , Electric bicycle motors, motor dynamometer systems for disabled vehicles. Background technique [0002] According to the current existing technology, the permanent magnet motor dynamometer system used to test small and medium power adopts the following typical forms, for example: [0003] The application number is 94215962.4, and the patent titled "Measuring Device for Motor Output Torque" is published. [0004] The application number is 98244117.7, and the patent titled "motor output power tester" is disclosed, [0005] The application number is 200420114065.0, and the patent titled "a torque testing device" is published. [0006] The char...

AI Technical Summary

Problems solved by technology

[0009] 2. The design of the torque sensor at the end of the device is unreasonable

[0013] 2. The torque sensor of the "rotation measurement method" is very expensive, and requires a special converter to convert the pulse signal output by the torque into an analog signal, and the structure is complex

Images