Electricity has been chosen as the most convenient and useful form of energy, due
to its ease of transportation over large distances and easy conversion to other
energy forms. The biggest inconvenience with electricity is that it cannot be stored
and must be utilized at the moment of generation. The storage of a large amount of
electrical energy is usually connected with its conversion to other types of energy,
which significantly reduces the efficiency of such processes. The aim of the power
system, often treated as the biggest and the most complex machine ever built, is to
deliver uninterruptible electric energy of demanded quality parameters to
consumers.
资源简介：Electricity has been chosen as the most convenient and useful form of energy, due to its ease of transportation over large distances and easy conversion to other energy forms. The biggest inconvenience with electricity is that it cannot be ...
上传时间： 2020-06-07
上传用户：shancjb
资源简介：由于能源危机和环境污染，世界各国均在投巨资发展电动汽车。燃料电池电动汽车成为电动汽车发展的“热点”。大功率DC/DC变换器能够改善燃料电池的输出特性，是燃料电池轿车动力系统中关键的零部件。然而它作为一种BUCK形式的开关电源，主电路是很强的电磁干扰...
上传时间： 2013-06-15
上传用户：superhand
资源简介：Abstract: Alexander Graham Bell patented twisted pair wires in 1881. We still use them today because they work so well. In addition we have the advantage ofincredible computer power within our world. Circuit simulators and filter design pro...
上传时间： 2014-11-26
上传用户：Vici
资源简介：Abstract: Class D amplifiers are typically very efficient, making them ideal candidates for portable applications that require longbattery life and low thermal dissipation. However, electromagnetic interference (EMI) is an issue that common...
上传时间： 2013-11-23
上传用户：哈哈hah
资源简介：高频开关电源由于其在体积、重量、功率密度、效率等方面的诸多优点，已经被广泛地应用于工业、国防、家电产品等各个领域。在开关电源应用于交流电网的场合，整流电路往往导致输入电流的断续，这除了大大降低输入功率因数外，还增加了大量高次谐波。同时，开关...
上传时间： 2022-07-24
上传用户：slq1234567890
资源简介：高频开关电源由于其在体积、重量、功率密度、效率等方面的诸多优点，已经被广泛地应用于工业、国防、家电产品等各个领域。在开关电源应用于交流电网的场合，整流电路往往导致输入电流的断续， 这除了大大降低输入功率因数外，还增加了大量高次谐波。同时，开...
上传时间： 2022-07-24
上传用户：trh505
资源简介：在电子设备及电子产品中，电磁干扰（Electromagnetic Interference）能量通过传导性耦合和辐射性耦合来进行传输。为满足电磁兼容性要求，对传导性耦合需采用滤波技术，即采用EMI滤波器件加以抑制；对辐射性耦合则需采用屏蔽技术加以抑制。在当前电磁频谱日趋...
上传时间： 2022-07-24
上传用户：d1997wayne
资源简介：Spread-spectrum techniques are methods by which electromagnetic energy generated in a particular bandwidth is deliberately spread in the frequency domain, resulting in a signal with a wider bandwidth. These techniques are used for a variety...
上传时间： 2017-06-06
上传用户：royzhangsz
资源简介：Communication today is not as easy as it was in the past. Protecting numerous com- munication services, which are operating in the same or adjacent communication channels, has become increasingly challenging. Communication systems have to b...
上传时间： 2020-05-27
上传用户：shancjb
资源简介：This paper presents a new type of electromagnetic damper with rotating inertial mass that has been devel oped to control the vibrations of structures subjected to earthquakes. The electromagnetic inertial mass damper (EIMD) consists ...
上传时间： 2021-11-04
上传用户：a1293065
