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Frequency conversion all-in-one machine

An all-in-one machine and frequency converter technology, which is applied in the field of frequency conversion all-in-one machines, can solve the problems of uncompact structure and large overall volume of the motor and braking device, and achieve the effects of simple structure, small size of the whole machine, and stable and reliable operation.

Inactive Publication Date: 2021-03-02
QINGDAO CCS ELECTRIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing motor brake equipment is generally installed independently, and needs to provide independent power supply equipment and lines, so the structure of the motor and brake device is not compact, and the overall volume is large

Method used

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  • Frequency conversion all-in-one machine
  • Frequency conversion all-in-one machine
  • Frequency conversion all-in-one machine

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Embodiment Construction

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Apparently, the described embodiments are part of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative efforts belong to the protection scope of the present invention.

[0024] figure 1 is a block diagram showing the composition of the all-in-one inverter 100 according to the embodiment of the present invention. In order to better understand the functions and principles of the frequency conversion all-in-one machine of the present invention, figure 1 The alternating current and load are also plotted in . The alternating current may be, for example, a 10 kV three-phase high-voltage alternating current, which is used to supply power to the integrated frequency conve...

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PUM

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Abstract

The invention discloses a frequency conversion all-in-one machine. The frequency conversion all-in-one machine comprises a frequency converter used for carrying out frequency conversion on alternatingcurrent and outputting the alternating current, a motor used for receiving the alternating current output by the frequency converter so as to enable the motor to carry out soft start and drive the motor to operate, a braking device connected to a shaft extension end of the motor and used for braking the motor when the frequency conversion all-in-one machine is powered off, and a controller configured to control the frequency converter to carry out frequency conversion on the alternating current and control the braking device to brake the motor. According to the frequency conversion all-in-onemachine, the frequency converter, the brake and the motor are integrated into a whole, so that the compatibility among different systems and the utilization rate of equipment installation space are improved, and the integrated frequency conversion all-in-one machine solves the problems of soft start and brake of the motor.

Description

technical field [0001] The present invention relates generally to the field of electrical machine applications. More specifically, the present invention relates to a frequency conversion all-in-one machine. Background technique [0002] At present, in working scenarios such as coal mines and ports, motors are often used to drive belts for cargo transportation. During the operation of the motor, it is sometimes necessary to change the speed of the motor depending on the transported goods and application scenarios. However, the existing motors usually do not have the function of changing the speed, or although the speed of the motor can be changed, a speed regulation method that does not change the synchronous speed is adopted, such as chopper speed regulation, cascade speed regulation, and the application of electromagnetic slip clutches, hydraulic motors, etc. Force coupling, oil film clutch, etc. for speed regulation. [0003] During the starting process of the motor, a ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K11/33H02K7/102H02K5/20
CPCH02K11/33H02K7/1023H02K5/20
Inventor 宋承林宋清江孙即明宫浩庭殷红顺
Owner QINGDAO CCS ELECTRIC CORP