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Energy-saving and electricity-saving dedicated rectifying power supply device

A technology of rectifying power supply device and rectifying unit, which is applied in the direction of output power conversion device, irreversible AC power input conversion to DC power output, electrical components, etc. It can solve the problems that the effect of power saving cannot be achieved, and achieve high-quality power output Effect

Inactive Publication Date: 2016-11-23
宁波永效环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the actual application process, the existing frequency converter cannot achieve the power saving effect under specific working conditions, such as rated speed, rated power and rated frequency

Method used

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  • Energy-saving and electricity-saving dedicated rectifying power supply device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0015] Please refer to figure 1 As shown, a special energy-saving and power-saving rectifying power supply device includes a frequency converter terminal 2 and a rectifier module 4 connected to the frequency converter terminal 2, a capacitor 1 is connected in parallel to the frequency converter terminal 2, and the The motor 3 is connected to the frequency converter terminal 2; the rectification module 4 includes a first rectification unit 5, a second rectification unit 6, a third rectification unit 7, a fourth rectification unit 8 and a fifth rectification unit 9, the first The rectification unit 5, the second rectification unit 6, the third rectification unit 7, the fourth rectification unit 8 and the fifth rectification unit 9 are connected to the terminal 10, and in the working state, any rectification unit in the rectification module 4 is connected to The frequency converter terminal 2 is conducting.

[0016] The internal connection of the rectifier module is as follows: ...

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Abstract

The invention discloses an energy-saving and electricity-saving dedicated rectifying power supply device which comprises a frequency converter wiring terminal and a rectifying module connected with the frequency converter wiring terminal. The frequency converter wiring terminal is connected with a capacitor in parallel, the frequency converter wiring terminal is connected with a motor, the rectifying module at least comprises a second rectifying unit, and the second rectifying unit is composed of a thyristor, a wire and a diode VD6. The dedicated rectifying power supply device meets the needs of different frequency converters for a power supply, meanwhile, the frequency converter rectifying power supply device serves as one of source transformation devices and is located between a power supply source and a load, higher-quality electric energy output can be provided, and especially power transformation of high-power electric energy can be achieved. Current and voltage output of the device are reduced in a rectifying mode, then power compensation is carried out through the capacitor, and therefore the function of saving energy and electricity is achieved more effectively.

Description

technical field [0001] The invention relates to a rectifying power supply device, in particular to an energy-saving and power-saving special rectifying power supply device, which belongs to the technical field of power equipment application. Background technique [0002] The frequency converter is a power control device that uses frequency conversion technology and microelectronics technology to control the AC motor by changing the frequency of the motor's working power supply. The frequency converter adjusts the voltage and frequency of the output power supply by switching off the internal IGBT, and provides the required power supply voltage according to the actual needs of the machine, thereby achieving the purpose of energy saving and speed regulation. In addition, the frequency converter has many protection functions , such as overcurrent, overvoltage, overload protection and so on. With the continuous improvement of industrial automation, frequency converters have also...

Claims

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Application Information

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IPC IPC(8): H02M7/02H02M7/155H02M7/06
CPCH02M7/17
Inventor 郭红伟刘开国
Owner 宁波永效环保科技有限公司
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