• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>CES Transactions on Electrical Machines and Systems >Electric generators and motors: An overview
【24h】

Electric generators and motors: An overview

机译：发电机和电动机：概述

获取原文
获取原文并翻译 | 示例
       
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Starting with Faraday's law of electromagnetic induction in 1831, electric (electromagnetic) machines have been developed ever since as “assembles” of electric and magnetic coupled circuits that convert mechanical to electrical energy (in generators) and vice versa (in motors), via magnetic energy storage. Generators and motors are reversible. The Maxwell four equations (laws) later in 19th Century have prompted the rapid development of all basic (DC. brush and travelling field AC machines by 1900. Then by 1930 AC (alternating current) power (energy) systems evolved by connecting in parallel electric synchronous generators (with voltage boost and buck electric transformers for efficient AC power transmission lines) of rather constant frequency and voltage, driven by turbines (prime movers) that harness fossil (coal, gas or nuclear fuels), thermal or hydro energy. The last 50 years have witnessed a dramatic extension of generators power/unit, renewable energy generators and of variable speed AC motor drives in applications with variable output such as ventilators, pumps compressors, conveyors, orr-mills, electric transport (mobility), industrial automation, robotics, home appliances and info — gadgets. This formidable development, required by the need of more but cleaner energy, was mainly driven by power electronics, better materials, better modeling, design methodologies and digital control. This humble inaugural overview attempts to combine a brief history of electrical generators and motors with recent progress and trends in their design and control, for representative applications.
机译：从1831年法拉第的电磁感应定律开始，电气（电磁）机器就被开发出来了，它是电和磁耦合电路的“集合体”，它们通过磁将机械能转换为电能（在发电机中），反之亦然（在电机中）。储能。发电机和电动机是可逆的。 19世纪后期的麦克斯韦四个方程（定律）促使所有基本的（直流电刷和行波交流电）电机迅速发展，到1900年。到1930年，交流电（能量）系统通过并联电连接而发展起来。频率和电压相当恒定的同步发电机（具有用于高效交流输电线路的升压和降压变压器），由利用化石（煤，天然气或核燃料），热能或水能的涡轮机（原动机）驱动。 50年来见证了发电机功率/单位，可再生能源发电机和变速交流电动机驱动器在功率输出可变的应用领域的显着扩展，这些应用包括通风机，泵压缩机，输送机，轧机，电力运输（移动性），工业自动化，机器人技术，家用电器和信息产品–这种强大的发展需要更多但更清洁的能源，这主要是由电力电子设备驱动的。材料，更好的建模，设计方法和数字控制。这份不起眼的开篇概述试图将发电机和电动机的简要历史以及其设计和控制的最新进展和趋势结合起来，以用于代表性的应用。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号