急!!!求摘要的英文翻译~(请精确翻译,是毕业论文,谢谢~) 30
随着我国经济的高速发展,微电子技术、计算机技术和自动控制技术也得到了迅速发展,而PLC与变频器也得到了广泛的使用。PLC可编程控制器:英文全称ProgrammableLo...
随着我国经济的高速发展,微电子技术、计算机技术和自动控制技术也得到了迅速发展,而PLC与变频器也得到了广泛的使用。PLC可编程控制器:英文全称Programmable Logic Controller,中文全称为可编程逻辑控制器,定义是:一种数字运算操作的电子系统,专为在工业环境应用而设计的。它采用一类可编程的存储器,用于其内部存储程序,执行逻辑运算、顺序控制、定时、计数与算术操作等面向用户的指令,并通过数字或模拟式输入/输出控制各种类型的机械或生产过程。而变频器英文译名是VFD(Variable-frequency Drive),这可能是现代科技由中文反向译为英文的为数不多实例之一。变频器是应用变频技术与微电子技术,通过改变电机工作电源的频率和幅度的方式来控制交流电动机的电力传动元件。它具有变频节能、功率因数补偿节能、软启动节能及调速等多种功能。在电力、纺织与化纤、建材、石油、化工、冶金、市政、造纸、食品饮料、烟草等行业以及公用工程(中央空调、供水、水处理、电梯等)中,变频器都在发挥着重要作用。通过对PLC及变频器的综合应用,两者相辅相成,实现各种机械设备及生产过程的准确高效运作,实现了系统技术升级,降低了设备能耗,提高了电气控制系统运行的可靠性。带动我国经济更高,更快的发展!
关键词:PLC / 变频器 / 应用 / 三相异步电动机 展开
关键词:PLC / 变频器 / 应用 / 三相异步电动机 展开
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As China's rapid economic development, microelectronics, computer technology and automation technology have developed rapidly, and PLC and frequency converter has also been widely used. PLC Programmable Logic Controller: English full name of the Programmable Logic Controller, Chinese full name of programmable logic controller, is defined as: a digital computing operation of electronic systems for applications in industrial environments designed. It uses a class of programmable memory, for its internal storage procedures, and logical operations, sequence control, timing, counting and arithmetic operations and other user-oriented instruction, and, through digital or analog input / output control of various types machinery or production processes. The inverter is the English translation of VFD (Variable-frequency Drive), this may be the reverse of modern technology by the Chinese translated into English one of the few examples. Frequency converter is applied technology and microelectronic technology, electrical work by changing the frequency and amplitude of the power to control AC motors of electric drive components. It has a frequency energy saving, energy-saving power factor compensation, soft start and speed control and other energy-saving features. In power, textile, building materials, petroleum, chemical, metallurgy, paper making, food and beverage and tobacco industries, and utilities (central air conditioning, water supply, water treatment, lift, etc.), the inverter are playing an important effect. Through the comprehensive application of PLC and inverter, the two complement each other to achieve a variety of mechanical equipment and production process accurate and efficient operation of the system to achieve a technology upgrade, lower power requirements, improved electrical control system's reliability. Drive our economy more, and faster development!
Key words: PLC / Inverter / Applications / three-phase asynchronous motor
Key words: PLC / Inverter / Applications / three-phase asynchronous motor
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