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Electronic servo transformer and servo system

A technology of servo systems and transformers, applied in control systems, electrical components, AC motor control, etc., can solve problems such as low withstand voltage, weak resistance to strong current impacts, and insufficient protection capabilities, and improve the impact resistance of strong currents. Excellent resistance to high voltage and large current, and strong protection ability

Active Publication Date: 2009-02-18
何川江
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0008] Embodiments of the present invention The purpose of the embodiments of the present invention is to provide an electronic servo transformer and its servo system, which aims to solve the problems of the existing electronic servo transformers with low withstand voltage, weak resistance to strong current impact, and insufficient protection capabilities

Method used

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  • Electronic servo transformer and servo system
  • Electronic servo transformer and servo system
  • Electronic servo transformer and servo system

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Embodiment Construction

[0031] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the embodiments of the present invention, and are not intended to limit the embodiments of the present invention.

[0032] The input end of the electronic servo transformer in the embodiment of the present invention is connected with a bridge stack group composed of at least two rectifying elements, which improves the voltage resistance and strong current impact resistance of the electronic servo transformer. When some components in the bridge stack group fail When , there is still a normal path to ensure that it can continue to work, reducing the failure rate.

[0033] figure 2 The circuit of the electronic servo tr...

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PUM

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Abstract

The embodiment of the invention is suitable for power distribution field, and provides an electric servo transformer and a servo system thereof. In the electric servo transformer, the input terminal is connected to a three-phase alternating current; an output terminal is connected with a servo unit. The servo transformer is characterized in that the input terminal of the electric servo transformer is connected with a bridge stack set composed of at least two rectifying elements, and the three-phase alternating current is inputted into the electric servo transformer and outputted into the servo unit after rectifying by the bridge stack set. The circuit of the electric servo transformer is simple, and the electric servo transformer has the advantage of low request to element parameter, easy implementation, low cost, low failure rate, easy maintenance and the like; the performance of resisting lightning stroke and high voltage great current is more excellent, and the protective capability is strong.

Description

technical field [0001] The embodiment of the invention belongs to the field of power distribution, and in particular relates to an electronic servo transformer and a servo system. Background technique [0002] In the field of automation control, servo motors are widely used because they are easy to control and have high precision. Famous electrical manufacturers in various countries have successively launched their own series of AC servo motors and servo drives and continuously improved and updated them. China's power grid adopts three-phase phase voltage of 380V, zero-line voltage of 220V, and electronic servo transformers above 1KW (most of which are above 400W) use three-phase 200-240V (voltage fluctuations of 200-240V+10%, 200-240V-15%) for power supply . [0003] The electronic servo transformer converts the single-phase or three-phase sinusoidal AC current into a stable and adjustable unidirectional DC current through the rectification element, and has been widely use...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02M7/219H02P27/06
Inventor 何川江
Owner 何川江
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