UPS知识(国外英文资料).doc

UPS知识(国外英文资料) UPS Basics The basic concept of UPS: interference in the power supply Definition of UPS The basic functions of UPS Basic circuit and composition: rectifier, battery, inverter, static switch, maintenance bypass Basic mode of work: backup, interactive, online? Basic operating principles: normal operation, battery operation, city power recovery, overload, maintenance Improved reliability: hot backup direct shunt common bypass shunt History of MGE UPS: discrete components, digital analog circuits, integrated circuits SCR, GTR, IGBT? LED? Digital control? LCD? Graphic? UPS is a product of power electronics technology The technology that uses power as the object and uses electronic technology as control means is called power electronic technology. Its main task is to realize the control and conversion of electric energy by means of electric power and electronic devices. From the date of the first silicon controlled rectifier (SCR) in 1956, it entered the era of power electronic technology. At the end of the 70s, microelectronics technology and power transistor (GTR) technology were combined to enter the era of modern power electronics technology. The application of modern power electronic technology in the field of electrical engineering, for example: all power plant energy storage equipment, DC power transmission equipment, dynamic reactive power compensation, electric locomotive, VVVF motor, uninterruptible power supply, switching power supply, high-frequency induction furnace, TV, office automation, communications, automotive, household appliances and so on...... Definition of UPS UPS is the abbreviation of Uninterruptable Power Supply in English. The Chinese language is uninterruptible power supply. It is an electrical device capable of switching between two power supplies without interruption. Sometimes people call it no - stop power, which is technically inaccurate. Because a power supply is a device that provides electrical energy and converts other e