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所在平台: Udemy |
课程主页: https://www.udemy.com/course/design-of-electric-motors/
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课程名称：从零开始设计电动机 课程概述：本课程将教授各种类型电动机的设计，这些电动机广泛应用于日常生活中的电器、工厂机械、生产线、井泵、污水处理、灌溉等多个领域。课程内容包括电动机的全部设计，直流电动机和交流电动机的工作原理，直流和交流电动机的速度控制方法，各类直流和交流电动机的类型与结构功能，以及电动机设计计算和基本方程。 学习目标： 1. 区分各种电动机的类型和形态。 2. 理解设计电动机的技术数据。 3. 学习交流和直流电动机在电路中的运行原理。 4. 选择适合项目应用（如工厂和电气机器）的电动机。 5. 在实践工作坊和实验室中进行电动机的设计。 电动机的发展始于19世纪初，随着电磁铁的发现而逐步推进。1820年，丹麦物理学家汉斯·克里斯蒂安·奥斯特德发现电流通过的导线会产生周围的磁场。1821年，迈克尔·法拉第的实验表明电流会使导线围绕磁基旋转。之后，亨利、格拉姆和特斯拉等科学家相继进行了大量的实验与发明，推动了直流电动机与交流电动机的商业化和技术进步。 本课程面向希望掌握电动机设计原理及应用的学员，旨在通过理论与实践结合的方式，提升学员的技能和知识水平。
In this course, you will learn the design of all types of electric motors used in various daily life applications, including electrical appliances in homes, machines and electrical machines used in factories, production lines, well pumps, sewage, irrigation and many others..In this course you will learn:Design of electric motors of all kindsThe working principle of DC motors and AC motorsMethods for controlling the speed of DC and AC motorsTypes and forms of AC and DC motors and the functions of their internal componentsDesign calculations and basic equations for AC and DC motorsIn this course you will be able to:Distinguishing the types of electric motors in all their shapes and typesUnderstand and know the technical data for the design of electric motorsOperation of AC and DC motors in electrical circuitsChoosing the necessary motors in the application of projects, as in factories and electrical machinesDesign of motors in practical workshops and laboratoriesThe development of electric motors began at the beginning of the nineteenth century with the discovery of electromagnets. In 1820 AD, the Danish physicist Hans Christian Oersted discovered that a wire in which an electric current passes generates a magnetic field around it (around the current). When the current passes through a looped wire (formed in the form of a loop), the generated magnetic field will be more intense inside the loop, and the direction of the field will be perpendicular to the plane of the loop. In the late 1820s, American physicist Joseph Henry showed that a more powerful electromagnet could be created by wrapping several turns of insulated wire around a piece of iron, i.e. acting like a magnet.In 1821 AD, the English physicist Michael Faraday suspended a wire of copper and dipped it in a container of mercury, and in the mercury was a magnetic rod. When Faraday passed an electric current through the wire, he found that it began to revolve around the magnetic base in mercury. Faraday found that the electric current created a circular magnetic field around the wire.In 1827, the Hungarian physicist, Aniosh Yedlik, conducted an experiment using wire files. He modified the experiment so that the motor consisted of three components of a direct current motor: a fixed member, a rotating member, and an electric exchanger. This device does not use a self-magnet, but the magnetic fields are produced by the two electric currents passing through the stator windings and the rotating member windings.In 1873 AD, the first commercially successful direct current motor appeared, as it was demonstrated by a Belgian electrical engineer named Zenob Theophile Gram in Vienna. Gram also presented a portfolio that would improve the efficiency of primitive electric motors and generators.In 1888 AD, an engineer of Serbian origin named Nikola Tesla invented the alternating current motor. At the beginning of the twentieth century AD, many advanced electric motors were developed.In the first decade of the twentieth century, many engineers and inventors experimented with linear electric motors. Instead of rotating, such motors produce an electromagnetic wave that can directly drive a vehicle. The use of linear actuators became more common thanks to the pioneering work of electrical engineer Eric Lethwaite in the 1950s and 1960s.
