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Programmable controller digital-control type cycle voltage falling emulation generator

A programming controller and analog generator technology, applied in the direction of instruments, measuring electricity, measuring electrical variables, etc., can solve the problems of poor anti-interference ability, high cost, inconvenient use, etc., and achieve strong anti-interference and easy software upgrade , high reliability effect

Active Publication Date: 2008-03-26
上海电动工具研究所(集团)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The former is inconvenient to use and has poor anti-interference ability, while the latter has high cost and is not conducive to popularization and promotion

Method used

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  • Programmable controller digital-control type cycle voltage falling emulation generator
  • Programmable controller digital-control type cycle voltage falling emulation generator
  • Programmable controller digital-control type cycle voltage falling emulation generator

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0017] As shown in Figure 1, it is a schematic block diagram of a programmable logic controller (PLC) numerical control type cyclic voltage drop simulation generator. The programmable controller numerical control type cyclic voltage drop simulation generator is controlled by an industrial man-machine interface touch screen, device, stepper motor driver, stepper motor, self-dual voltage regulator, zero-crossing sampling circuit, AC-DC voltage conversion circuit, IGBT voltage control circuit, the industrial man-machine interface touch screen is connected with the programmable controller, programmable The controller is respectively connected with the zero-crossing sampling circuit, the stepper motor driver, the AC-DC voltage conversion circuit, and the IGBT voltage control circuit, and the AC-DC voltage conversion circuit is connected with the self-coupled voltage regulator and the IGBT voltage control circuit respectively, and the stepping The motor driver is connected with a sel...

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PUM

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Abstract

This invention relates to a kind programmable controller numerical control cycle voltage falling simulative generator, its character is that, it is compose of industry man-machine interface touch screen, programmable controller, step motor drive, step motor, auto-transformer, zero cross sample circuit, AC-DC voltage inverter, IGBT voltage control circuit, the industry man-machine interface touch screen connects the programmable controller, the programmable controller links with zero cross sample circuit, the step motor drive, AC-DC voltage inverter, IGBT voltage control circuit separately, the AC-DC voltage inverter links with the auto-transformer and the IGBT voltage control circuit separately, the step motor drive links with the auto-transformer by step motor. The merits of this invention is that it uses the new programmable controller (PLC) with A / D transition function, realizes the control to the cycle voltage falling simulative amount which meet the related standard request. The anti-interference of this invention is good, the reliability is high, and it is easy to update the software following the emendation of related test standard.

Description

technical field [0001] The invention relates to a programmable logic controller (PLC) numerically controlled cycle voltage drop simulation generator, in particular to a test instrument meeting the requirements of the GB / T17626.11-1999 electromagnetic compatibility standard, which can be used for anti-disturbance of electrical and electronic equipment It belongs to the technical field of electromagnetic compatibility testing. Background technique [0002] When the power grid or substation equipment fails or the load changes suddenly, it will cause an instantaneous drop and short-term interruption of the network voltage. In some cases, there will even be two or more consecutive voltage drops and interruptions. These phenomena are random in nature, ranging from interfering with the normal operation of electrical appliances, to causing loss of internal data in the equipment, stoppage of the production line, and causing direct economic losses. Therefore, it is required that elec...

Claims

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Application Information

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IPC IPC(8): G01R31/00G01R29/08
Inventor 崔陵军陈艾青蔡夏水施兆良王清瑜
Owner 上海电动工具研究所(集团)有限公司
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