Search - inrush

[Other] 7_MP1541

Description: Spec of monolitic power system The MP1541 is a 5-pin thin SOT23 current mode step up converter intended for small, low power applications. The MP1541 switches at 1.3MHz and allows the use of tiny, low cost capacitors and inductors 2mm or less in height. Internal soft start results in small inrush current and extends battery life. The MP1541 operates from an input voltage as low as 2.5V and can generate 12V at up to 200mA from a 5V supply. The MP1541 includes under-voltage lockout, current limiting, and thermal overload protection to prevent damage in the event of an output overload. The MP1541 is available in a small 5-pin TSOT23 package
Platform: | Size: 192512 | Author: eyespoint | Hits:

[matlab] STCT

Description: mfile for simulink Inrush current
Platform: | Size: 112640 | Author: hossein | Hits:

[AI-NN-PR] fuzzy

Description: 基于模糊神经网络的变压器励磁涌流鉴别的研究，对研究变压器故障提出了新办法-Based on fuzzy neural network identification of magnetizing inrush current research, the study proposed a new approach to transformer fault
Platform: | Size: 283648 | Author: 高亮 | Hits:

[AI-NN-PR] mhsj

Description: 运用模糊神经网络来区分变压器励磁涌流和内部故障，模糊神经网络的在变压器中的应用-The use of fuzzy neural network to distinguish between magnetizing inrush current and internal fault, fuzzy neural network in the Transformer
Platform: | Size: 30720 | Author: 桃源青天 | Hits:

[AI-NN-PR] Ph.D.Thesis

Description: 这是一篇关于岩石力学的博士论文 svm及其在矿井突水信息处理中的应用与研究-This is a doctoral thesis on rock mechanics and mine water inrush svm Information Processing Research
Platform: | Size: 155648 | Author: 舒久明 | Hits:

[DSP program] 2

Description: 单相准Z 源逆变器及其SVPWM 控制策略研究冷志伟，齐琛，陈希有（大连理工大学，辽宁大连116024）摘要：主要研究了一种新型拓扑结构的Z 源逆变器，即单相准Z 源逆变器。分析了其等效电路及其运行状态，并将空间矢量脉宽调制（SVPWM）技术应用到单相准Z 源逆变器中，着重分析了调制的基本原理并给出了单相准Z 源逆变器基于SVPWM 的控制策略。仿真和实验结果表明，相对常规Z 源逆变器，准Z 源逆变器能够有效抑制启动冲击电流，显著降低Z 源网络中电容器件的电压应力，从而节省整体成本、增强了系统可靠性。关键词：逆变器；空间矢量脉宽调制；单相-Research on Single Phase Quasi-Z-source Inverter with SVPWM Control Strategy LENG Zhi-wei， QI Chen， CHEN Xi-you （Dalian University of Techology，Dalian 116024，China） Abstract：This paper mainly develops a novel topology，which is called quasi-Z-source inverter（QZSI），derived from the traditional Z-source inverter（ZSI）.The equivalent circuit and operating principle analysis are given and the space-vector PWM technique is applied into single phase QZSI（spQZSI），the basic modulation principle and control strategy of spQZSI based SVPWM are showed.The simulation and experimental results indicate the presented QZSI has merits of suppress the inrush current and remarkable lower component voltage ratings，thus save the entirety costs and strength the system reliabilities. Keywords：inverter；space vector pulse width modulation；single phase Foundation Project：Supported by National Natural Science Foundation of China（No.50877007）
Platform: | Size: 205824 | Author: 赵刚 | Hits:

[matlab] inrush

Description: this the matlab programming to determine or analyze inrush current with variable voltage value-this is the matlab programming to determine or analyze inrush current with variable voltage value
Platform: | Size: 1024 | Author: izwan | Hits:

[matlab] EMTPandMATLAB

Description: This Project distinguish between inrush currents and internal faults in the protection of power transformers with Emtp Program And Matlab Code. Simple Methot is used in Project.
Platform: | Size: 223232 | Author: abbas | Hits:

[Wavelet] An-improved-Hilbert-Huang-method-for-analysis-of-

Description: The Hilbert–Huang method is presented with modifications, for time-frequency analysis of distorted power quality signals. The empirical mode decomposition (EMD) is enhanced with masking signals based on fast Fourier transform (FFT), for separating frequencies that lie within an octave. Further, the instantaneous frequency and amplitude of the constituent modes obtained by Hilbert spectral analysis are improved by demodulation. The method shows promising time-frequency-magnitude localization capabilities for distorted power quality signals. The performance of the new technique is compared with that of another multiresolution analysis tool, the S-transform—a phase corrected wavelet transform. Analysis on actual measurements of transformer inrush current from an existing laboratory setup is used to demonstrate this technique.
Platform: | Size: 835584 | Author: imed | Hits:

[matlab] radio_pf

Description: 利用MATLAB语言实现的关于励磁涌流二次谐波和基波的比例程序。-The use of the MATLAB language of the ratio of the magnetizing inrush current of secondary harmonic and fundamental program.
Platform: | Size: 1024 | Author: 王刚 | Hits:

[matlab] mine-water-inrush-discriminant

Description: 无导师学习神经网络的分类——矿井突水水源判别-mine water inrush discriminant
Platform: | Size: 3072 | Author: yanjie | Hits:

[Technology Management] 5

Description: 目前牵引变压器差动保护原理在某些因素的影响下并不能准确地区分变压器内部故障和外部故障，可能造成保护误动或拒动，危及电气化铁道系统的安全运行。针对这一现状，建立了计及铁芯非线性特性和磁滞效应而又无需铁芯的B－H曲线数据的牵引变压器模型，提出了一种通过参数辩识理论来辩识牵引变压器绕组参数实现牵引变压器微型机保护的方法。该方法能有效地区分内部故障、外部故障和励磁涌流。仿真计算表明了该方法的正确性和可行性。-Traction transformer differential protection principle in the safe operation and can not accurately distinguish between the transformer internal faults and external faults, may be to cause protection mistaken or refuse to move, endangering the electrified railway system under the influence of certain factors. In response to this situation, taking into account the core nonlinear characteristics and hysteresis and without traction transformer core of the B-H curve data model, a the traction transformer winding identification through parameter identification theory parameters to achieve traction transformer microcomputer protection. This method can effectively distinguish internal faults, external faults and magnetizing inrush current. The simulation results show that the correctness and feasibility of the method.
Platform: | Size: 152576 | Author: dxw | Hits:

[Other] wavelet

Description: 基于小波变换的mallat算法，用于检测信号的奇异性，实现励磁涌流的鉴别-Based the wavelet transform mallat algorithm for detection signal singularity inrush current identification
Platform: | Size: 1024 | Author: 李明 | Hits:

[matlab] nca

Description: 神经网络的分类算法，举例：矿井突水水源判别-Neural network classification algorithm, for example: mine water inrush discriminant
Platform: | Size: 1024 | Author: 沈大 | Hits:

[Energy industry] bianyaqiliciyongliu

Description: 电力系统变压器空载合闸时励磁涌流的仿真，设置好了合闸时间，对励磁涌流波形和存在的谐波进行分析，能直观体现励磁涌流的特点。-Power system transformer load switching inrush current simulation, set closing time, the inrush current waveform and the presence of harmonic analysis, can directly reflect the characteristics of the inrush current.
Platform: | Size: 12288 | Author: wnghongtao | Hits:

[matlab] sagar

Description: mitigation inrush current
Platform: | Size: 8192 | Author: sushil | Hits:

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