Description: a transmission line fault location model which is based on an Elman recurrent network
(ERN) has been presented for balanced and unbalanced short circuit faults. All fault situations with
different inception times are implemented on a 380-kV prototype power system. Wavelet transform
(WT) is used for selecting distinctive features about the faulty signals. The system has the advantages of
utilizing single-end measurements, using both voltage and current signals. ERN is able to determine the
fault location occurred on transmission line rapidly and correctly as an important alternative to standard
feedforward back propagation networks (FFNs) and radial basis functions (RBFs) neural networks. Platform: |
Size: 761856 |
Author:charlie |
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Description: 三相感应电动机单相短路故障的瞬态过程仿真，大家一起学习-Three-phase induction motor single-phase short-circuit fault transient process simulation, we study together Platform: |
Size: 158720 |
Author:张莹 |
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Description: The works presented in this dissertation are focussed on the design and the development of a
diagnosis procedure by parameter estimation for stator and rotor faults in induction motor.
Firstly, we review briefly the main techniques for fault detection in electrical utilities in the aim to study theirs performances. Secondly, we have developed a new approach based on the
introduction of a faulty model in the healthy one in order to explain the faults and a parameter estimation method with integration of physical knowledge. Used for faults detection occurring in magnetic core, experimental test results exhibit good agreement and demonstrate the possibility of detection and localization of di?erent failures. Platform: |
Size: 6417408 |
Author:lakhdar |
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Description: 本程序为基于多回路理论的单相异步电机故障诊断程序，具有良好的效果-This program is based on multi-loop theory for single phase induction motor fault diagnosis procedures, with good results Platform: |
Size: 2048 |
Author:钱雅云 |
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Description: 优秀论文及配套源码。电压暂降是动态电能质量问题中最受关注的热点之一。大量新型电力电子设备的广泛使用对电网电能质量的要求越来越高，而且电压暂降在电网中又具有一定的传播性。因此，无论从电网还是用户都迫切需要对电压暂降进行研究和治理。对电压暂降的检测是解决电压暂降的前提条件，故本论文主要对电压暂降的检测方法进行研究。
本文分析了国内外短时电能质量扰动检测的研究现状，并着重讨论了短路故障、感应电动机启动和变压器激磁三种电压暂降扰动情况下电压暂降的特性；在此基础上选择了基于S变换的短时电能质量扰动检测方法，从S变换的结果S模矩阵及S复矩阵中提取出所需数据并以此来对各种扰动情况下的电压暂降的幅值、相位跳变、持续时间和谐波含量进行分析。仿真结果表明，该方法很好地实现了对电压暂降各特征量的检测。
-The voltage sag is one of most hot topics in dynamic electric energy problems. Masses of new power and electron facilities have been put into use widely, requiring a high quality of electric network and power, chiefly the voltage sag. Moreover, the voltage sag can spread in the electric network. So people have every reason to research and control the voltage sag. However, before developing the voltage sag, people have to detect it. On account of the above, this essay will chiefly focus on the detect methods of the voltage sags.
In this paper, the status of the short duration power quality disturbance based on the different method are researched firstly, and emphasizes the characteristic of the voltage sag under the situation of the three kinds of voltage sag disturbances like the short circuit fault, induction motor start-up and transformer excitation. On the basis of the above, the short duration power quality disturbance detection method based on S transform is chosen. The complex m Platform: |
Size: 541696 |
Author:NBB |
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Description: DTC异步电机驱动系统中逆变器故障工况研究The DTC induction motor drive system with inverter fault condition research-The DTC induction motor drive system with inverter fault condition research Platform: |
Size: 1533952 |
Author:win666 |
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Description: 带变频驱动系统的感应电机故障诊断研究Belt drive system of induction motor fault diagnosis-Belt drive system of induction motor fault diagnosis Platform: |
Size: 417792 |
Author:zz121 |
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Description: 多介质工频电场分析的快速多极子边界元法Multiple fault of cage rotor induction motor by current distribution-Multiple fault of cage rotor induction motor by current distribution Platform: |
Size: 566272 |
Author:dd888 |
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Description: 变频电源笼型异步电机断条故障诊断仿真Variable frequency power supply of squirrel cage induction motor broken bar fault diagnosis simulation-Variable frequency power supply of squirrel cage induction motor broken bar fault diagnosis simulation Platform: |
Size: 452608 |
Author:king121 |
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Description: 采样系统慢时变扰动比例积分观测器鲁棒控制Variable frequency power supply of squirrel cage induction motor broken bar fault diagnosis simulation-Variable frequency power supply of squirrel cage induction motor broken bar fault diagnosis simulation Platform: |
Size: 474112 |
Author:king121 |
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Description: The fault of broken rotor bars in a three phase induction motor is diagnosed by using the wavelet multiresolution analysis Platform: |
Size: 520192 |
Author:yamaka02 |
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Description: 5管脚三相交直交异步电机控制模型，可用于容错控制，节省晶闸管。-5-pin three-phase DC-AC induction motor control model can be used for fault-tolerant control, saving thyristor. Platform: |
Size: 28672 |
Author:YANGHUANWEN |
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Search - induction motor fault