Motor twin trawling platform used for motor test

Abstract

The invention discloses a motor twin trawling platform used for a motor test. The motor twin trawling platform used for the motor test comprises a transformer, a rectifier, a filter, a tested motor, a master control system, a load motor, a coupler and two motor control systems. The rectifier is connected with the transformer, two ends of the filter are respectively connected with two output ends of the rectifier, a tested motor control system and a load motor control system are both connected with the filter, the load motor is connected with the load motor control system, a tested motor output shaft is connected with an output shaft of the load motor through the coupler, and the tested motor control system and the load motor control system are both connected with the master control system. The whole system of the motor twin trawling platform used for the motor test can be miniaturized, the motor can be output through random torque so as to enable the motor twin trawling test to be diversified, electricity is saved, and efficiency can be obviously improved.

Description

technical field [0001] The invention relates to a motor-to-drag platform for motor testing. Background technique [0002] In modern motor testing, it is necessary to verify the performance of the motor for a long time, especially the performance verification under the condition of load and sudden change of load is more important. Therefore, solving the load problem used by the motor during operation has become the top priority of the motor test system. [0003] At present, the loads used in the traditional motor test platform have the following forms: one is to use DC generators and power resistors to simulate loads to consume energy; the other is to use synchronous motors, DC generators and grid-connected devices as loads. return to the power grid; the third is to use a dynamometer as a load, which is also a more mainstream approach. [0004] Although the above load forms can well complete the load task as a motor performance test, there are problems and shortcomings of o...

AI Technical Summary

Problems solved by technology

However, AC asynchronous motors are generally larger in size. If the motor under test is a very small permanent magnet synchronous motor, the physical connection is not coordinated.

Moreover, AC asynchronous motors respond slowly in torque regulation control

At the same time, as a load motor, it needs to work in the power generation state. Due to the characteristics of the AC asynchronous motor, once the system runs at a low speed, the power generation efficiency is extremely low, resulting in a decrease in the overall system efficiency.

Images