请求翻译毕业设计的摘要

来源:百度知道 编辑:UC知道 时间:2024/05/29 15:58:42
中文摘要如下:
在现代科学技术的许多领域中,变频调速已被公认为是最理想、最有发展前途的调速方式之一,采用通用变频器构成变频调速传动系统的主要目的,一是为了满足提高劳动生产率、改善产品质量、提高设备自动化程度、提高生活质量及改善生活环境等要求;二是为了节约能源、降低生产成本。随着变频器的不断发展和推广应用,越来越多的场合需要对变频器进行网络通讯和监控,过去多采用传统的RS485/422接口采集实时信息,通过操作员界面修改参数。今天,由于网络和现场总线技术的发展和应用,变频器之间的通讯、变频器实时监控等功能已经已经演变成为数字化时代,带数字接口的变频器不但具有提供更多的数据信息网络通信能力,而且还可以实现基于网络的参数在线优化
A-B公司生产的PowerFlex系列变频器就是基于罗克韦尔自动化的NetLinx 开放网络体系,为DeviceNet,ControlNet和EtherNet/IP网络提供一系列通用的特性和服务,并导致更低的所有生产者成本。当用户进行控制、组态和采集数据的时候,可以很容易地管理从车间底层到顶层的信息并无缝地将它们成为一个完整的系统。它适用于DeviceNet,ControlNet,Universal RIO,RS485DF1,Profibus, interbus-S等网络。 其中控制层网络 (ControlNet)、设备层网络(DeviceNet)和信息层网络(EtherNet)的三层网络结构为罗克韦尔自动化公司最新开发出来的网络结构, 基于这种网络结构设计的ControlLogix系统将这种网络思想体现的淋漓尽致。

In many areas of modern science and technology, variable-frequency regulating speed technology has recognized as the most ideal, the most promising speed by means of general inverter frequency, constitute the main purpose of the variable speed drive system, one is to meet the increasing productivity, improve product quality, improve equipment automation degree, improve the quality of life and improve the living environment; etc. Two is to save energy and reduce the production cost. With the continuous development of inverter and applied more and more places to frequency converter for network communication and monitoring, past many traditional RS485/422 interface acquisition real-time information, through the operator interface modification parameter. Today, because of network and fieldbus technology development and application of inverter frequency, the communication between the function such as real-time monitoring has been turned into a digital era, with digital interface converte