Signal acquisition device and processing method for alternating current power current-sharing output system

A technology of AC power supply and output system, which is applied in the direction of output power conversion device, AC power input conversion to AC power output, measurement device, etc., which can solve the problem of inaccurate frequency and phase detection, low precision of current sharing control, load burnout, etc. problem, to achieve the effect of accurate signal and improve the accuracy of current sharing control

Inactive Publication Date: 2012-07-18
重庆安谐新能源技术有限公司
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

It can be seen that the traditional AC power supply current sharing output system only samples the AC power supply and the current sharing power supply as a whole, which makes the accuracy of the microprocessor's current sharing control of the AC power supply low.
[0004] In addition, the microprocessor only performs simple filtering on the current and voltage of the AC power supply and the current and voltage of each current-sharing power supply, which leads to extremely inaccurate detection of frequency and phase. The PID control method performs current sharing control on the AC power supply, the control accuracy is relatively low, and it is easy to cause the load to burn out

Method used

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  • Signal acquisition device and processing method for alternating current power current-sharing output system
  • Signal acquisition device and processing method for alternating current power current-sharing output system
  • Signal acquisition device and processing method for alternating current power current-sharing output system

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Embodiment Construction

[0065] All features disclosed in this specification, or steps in all methods or processes disclosed, may be combined in any manner, except for mutually exclusive features and / or steps.

[0066] Any feature disclosed in this specification (including any appended claims, abstract and drawings), unless expressly stated otherwise, may be replaced by alternative features which are equivalent or serve a similar purpose. That is, unless expressly stated otherwise, each feature is one example only of a series of equivalent or similar features.

[0067] Such as figure 2 As shown, the AC power output device consists of three first current sampling modules, three first voltage sampling modules, 3*N second current sampling modules, 3*N second voltage sampling modules and a microprocessor N is an integer greater than zero, wherein each phase of the AC power supply is connected to the microprocessor through a first current sampling module and a first voltage sampling module; the first cur...

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Abstract

The invention discloses a signal acquisition device and a signal processing method for an alternating current power current-sharing output system, and belongs to the field of alternating current power current-sharing output. The signal acquisition device performs current and voltage acquisition on each single-phase power supply of an alternating current power supply and a current-sharing power supply to obtain accurate signals, so that the current-sharing control accuracy of a microprocessor for the current-sharing power supply is improved. By the signal processing method, the amplitude, frequency and phase of each single-phase power supply in the alternating current power supply and the current-sharing power supply can be accurately detected, so that the current-sharing control accuracy of the microprocessor for the alternating current power supply is further improved, and a load is prevented from being burnt down.

Description

technical field [0001] The invention relates to an AC power supply current equalizing output system, in particular to a signal acquisition device and a processing method of the AC power supply current equalizing output system. Background technique [0002] In the field of power system, the AC power supply current sharing output system refers to providing power to multiple loads from one AC power supply. large, causing the load to burn out. [0003] Such as figure 1 As shown, the traditional AC power current sharing output system usually consists of a first current sampling module, a second current sampling module, a first voltage sampling module, a second voltage sampling module and a microprocessor, wherein the first current sampling module, the second A voltage sampling module is used to collect the current and voltage of the AC power supply and send them to the microprocessor; the microprocessor is used to control the current of the AC power supply and output N current ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02M5/00H02M1/12H02M1/14G01R19/00
Inventor 郑武强陈柄烨谢锋唐林郭锋熊开兰
Owner 重庆安谐新能源技术有限公司
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