Typical sensitive equipment voltage sag endurance capability intelligent analyzer

Abstract

The invention discloses a typical sensitive equipment voltage sag endurance capability intelligent analyzer, which is composed of an upper computer, a programmable power supply, tested equipment, a data acquisition card, a single chip microcomputer, a relay and a push-pull electromagnet, wherein the upper computer is connected with the programmable power supply through an LAN port and is responsible for controlling the output of the programmable power supply; the output end of the programmable power supply is connected to the tested equipment and is responsible for providing a test voltage forthe tested equipment; the upper computer is connected with the single chip microcomputer through an RS232 interface and sends a control instruction to the single chip microcomputer, the single chip microcomputer is connected with the relay, and the single chip microcomputer controls the relay according to the instruction of the upper computer. The relay is connected with the push-pull electromagnet, simulates click operation according to an instruction of the single chip microcomputer, and starts the tested equipment. Automatic test can be effectively and accurately carried out on sensitive equipment, and an experimental foundation is laid for formulating equipment voltage sag tolerance characteristic testing standards for industries and users and taking treatment and prevention measuresin a targeted manner.

Description

technical field [0001] The invention belongs to an electric power system, and in particular relates to an intelligent analyzer for voltage sag tolerance capacity of typical sensitive equipment. Background technique [0002] Voltage sag refers to the situation that the effective value of the output voltage suddenly drops in a certain period of time, and after a period of time, it finally returns to the normal output voltage, and its duration is mostly half a cycle to several seconds. With the continuous development of the power industry, high-end manufacturing such as semiconductor manufacturing, precision machining, and aerospace equipment has higher and higher requirements for power quality. Voltage sag accidents will cause inestimable losses in equipment production, operation and maintenance, etc. [0003] AC contactor (AC contactor, ACC), variable frequency speed control system (adjustable speed drive, ASD), programmable logic controller (programmable logic controller, PL...

AI Technical Summary

Problems solved by technology

[0006] In order to overcome the deficiencies of existing test experiments that need to manually change the test vector, manually read the test results and manually reset

Images