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Three-phase fan frequency conversion power saver

A three-phase inverter, three-phase power supply technology, applied in the field of power control device, three-phase fan frequency conversion energy saving, can solve problems such as electric energy waste, achieve wide application prospects, good economic and social benefits, simple structure Effect

Inactive Publication Date: 2011-04-27
SHANGHAI ELION ELECTRIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to overcome the above-mentioned shortcoming of electric energy waste in the prior art, and provide a three-phase fan frequency conversion power saver with simple and practical structure, low cost, fully automatic operation and remarkable power saving effect

Method used

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Embodiment Construction

[0011] In order to understand the technical content of the present invention more clearly, the following examples are given in detail.

[0012] Referring to the accompanying drawings, taking a 380V, 50HZ, 3-phase, 15KW fan as a reference, the three-phase fan frequency conversion power saver includes a fan operating parameter detection circuit (10), a three-phase rectifier circuit (20), Charging circuit (30), battery (40), battery switch (50), three-phase inverter (60), capacitor (70), control circuit (80), three-phase power contactor (90). The three-phase power supply of the external grid is connected to the input end of the three-phase power contactor (90), and the output end of the three-phase power contactor (90) is respectively connected to the input end of the three-phase rectification circuit (20) and the input end of the charging circuit (30). The output terminal of the three-phase rectification circuit (20) is connected with the input terminal of the battery switch (50...

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Abstract

The invention discloses a three-phase fan frequency conversion power saver belonging to the technical field of electromotor energy saving control. The three-phase fan frequency conversion power saver comprises a fan operation parameter detection circuit (10), a three-phase rectifying circuit (20), a charging circuit (30), a battery (40), a battery switch (50), a three-phase inverter (60), a capacitor (70), a control circuit (80) and a three-phase power contactor (90). When being applied for a fan with an alternating current electromotor, the three-phase fan frequency conversion power saver provided by the invention can simultaneously and respectively realize two energy-saving methods of speed-regulation energy saving and peak clipping and valley filling of a power grid; and generally, the invention can obtain the energy-saving effect of 20-90%. The three-phase fan frequency conversion power saver provided by the invention has simple structure, obvious energy saving effect and wide application prospect on the aspect of fan energy saving, and is intuitional in metering.

Description

technical field [0001] The invention relates to a three-phase fan frequency conversion power saver, which belongs to the technical field of motor energy-saving control, and specifically relates to an electric power control device for simultaneously realizing two energy-saving methods of speed regulation and energy saving and power grid peak-shaving and valley-filling. Suitable for fans with three-phase AC motors. Background technique [0002] With the progress of society and the development of science and technology, three-phase AC motor fans have become a common general-purpose electromechanical equipment that can be seen everywhere and used on a large scale. The power consumption of three-phase AC motor fans has already accounted for a considerable proportion of the national energy consumption. [0003] In the 21st century, global energy is becoming increasingly tense, and China is a big energy consumer, so it is imperative to save energy. [0004] Therefore, it is neces...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02P27/06H02J7/02H02J9/04
CPCY02B70/30Y04S20/20
Inventor 易鸿轶
Owner SHANGHAI ELION ELECTRIC