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Method for automatically identifying the running direction of a water pump motor and a frequency converter

A water pump motor and automatic identification technology, which is applied in the direction of machine/engine, AC motor control, pump control, etc., can solve the problems of complex and tedious procedures and time-consuming

Active Publication Date: 2020-11-03
优众新能源(深圳)股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Repeated wire changing during the installation process is not only time-consuming, but also complicated and cumbersome

Method used

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  • Method for automatically identifying the running direction of a water pump motor and a frequency converter
  • Method for automatically identifying the running direction of a water pump motor and a frequency converter

Examples

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Embodiment Construction

[0027] The present invention will be described in detail below in conjunction with specific embodiments and accompanying drawings.

[0028] see figure 1 and figure 2 , showing a method for automatically identifying the running direction of a water pump motor and a frequency converter provided by an embodiment of the present invention, the frequency converter includes a water pump 30, a motor 20 installed on the water pump 30, and a frequency converter 10 for controlling the motor 20, The motor 20 is a three-phase motor 20 , and the motor 20 includes a current monitoring circuit 22 , and the current monitoring circuit 22 sends the current value of the motor 20 to the frequency converter 10 . The water pump 30 has a water inlet 31 and a water outlet 32 ​​, and the water outlet 32 ​​of the water pump 30 is equipped with a pressure sensor 33 for sending the pressure value of the water outlet 32 ​​to the frequency converter 10 . The frequency converter 10 includes a power module...

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Abstract

The invention discloses a method for automatically identifying a water pump motor running direction and a frequency converter. The frequency converter comprises a water pump, a motor and the frequency converter, wherein the motor and the frequency converter are installed on the water pump. A water outlet of the water pump is installed with a pressure sensor. The frequency converter can determine a running direction of the water pump motor through a pressure value transmitted by a pressure sensor. When the water pump motor runs at a reverse direction, the running direction of the water pump motor is adjusted and the water pump is guaranteed to work normally.

Description

technical field [0001] The invention relates to motor control technology, in particular to a method for automatically identifying the running direction of a water pump motor and a frequency converter. Background technique [0002] The frequency converter is suitable for remote monitoring and management of water intake pumping stations, pressurized pumping stations of water plants, midway pressurized pumping stations, and community pressurized pumping stations in urban water supply systems. During the installation process of the water pump motor, due to wiring problems, the water pump will reverse, and the reverse rotation of the water pump will cause the inability to pump water. Long-term operation will cause the heat of the pump to damage the bearing and shaft seal, and even burn out the motor in severe cases. At present, the first time the water pump is installed, it is necessary to confirm whether the water pump is reversed through the cooling fan behind the water pump. F...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02P27/04F04B49/06F04B49/20
CPCF04B49/06F04B49/20H02P27/04
Inventor 黄少勇屈永江
Owner 优众新能源(深圳)股份有限公司
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