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Details regarding Electrical machines
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在电力系统通信中,数字光纤通信由于其本身的优点得到越来越广泛的应用。数字光纤通信系统中,从电端机传输过来的电信号均要结合数字光纤通信传输的特点经过线路码型的转换。通过线路码型的转变平衡数字码流中的“0”和“1”码字,从而避免码流中出现长“0”或者长“1”的现象。在数字光纤通信系统中比较常用的线路码型就是mBnB码型,mBnB线路码型的最大优点就是最大相同码元连码和少、定时信息丰富、并且有简单成熟的误码监测与码组同步的方法。
-In the power system communication
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UBC大学关于发电机建模的博士论文,详尽的介绍了同步机与异步机传统的建模方法,在此基础上介绍了VBR等先进的建模方法。可供学电机的同学参考。-Modeling of electrical machines.Most machine models are based on the dq reference frame.The phase-domain model.This thesis focus on improving the numerical efficiency and accuracy
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Basic Descr iption on Electrical Machines
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无刷直流电动机利用电子换相代替机械换相,不但具有直流电动机的调速性能,而且体积小、效率高,在许多领域已得到了广泛应用。采用无位置传感器控制技术之后,不但克服了外置式位置传感器的诸多弊病,而且进一步拓宽了无刷直流电机的应用领域。目前,无刷直流电机无位置传感器控制已成为无刷直流电机控制技术的发展方向。 本文纵观了无刷直流电动机的兴起、发展与现状,概括了无刷直流电动机无位置传感器控制技术的现有水平及存在的问题,以研制、开发全直流变转速空调产品为依托,从理论和实践两个方面对这些问题展开了较为全面的研究和
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Control Methods for Electrical Machines - Husson_ Rene
The control of electrical machines very much depends on the context and
environment in which motors are considered. How a machine is used has a strong
influence on its control laws. These
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basics of electrical machinesbasics of electrical machines
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basics of electrical machinesbasics of electrical machinesbasics of electrical machinesbasics of electrical machines
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basics of electrical machines
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basics of electrical machines
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some text about electrical machines this paperes about electrical machines for year 2010 and later
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Steam turbines are found to operate at fairly good efficiency only at high speeds. The high speed operation of rotors tends to increase mechanical losses and so the rotors should have a smooth external surface. Hence, smooth cylindrical type rotors w
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Abstract - The majority of electrical machines are designed to
produce the rotary motion, there by exploiting the blessing of
circularity which man has enjoyed since the discovery of the
wheel. Electromagnetic forces may also be employed to pro
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electromagnets for electrical machines
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IEC 60034-1_(1999)_Rotating electrical machines-Rotating and performance
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IEC 60034-5_(2000)_Rotating electrical machines-Degrees of protection
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Advances in computing power have resulted in the
development of more and more powerful computer
aided design tools for electrical machines.
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comparativestudy between two control strategies of electrical machines: Direct Torque Control (DTC-SVM), andPredictive Direct Torque Control (MPDTC).
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