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Detection-of-short-duration-power-quality-disturba
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)
- 2021-04-08 19:39:00下载
- 积分：1
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Hw432_MIAP
Matlab code for image processing. using a guassian filter on the image nad using fspecial function
- 2009-12-12 20:02:17下载
- 积分：1
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tau
计算时间序列的延迟时间，有例子，一看就明白啊！(The time series‘delay time is calculated , there is an example!)
- 2013-08-07 16:30:51下载
- 积分：1
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Current-Control-of-BLDC-Drive-for-EV-application
This topic presents a current blocking strategy of brushless DC (BLDC) motor drive to prolong the capacity voltage of batteries per charge in electric vehicle applications. The BLDC motor employs a simple torque hysteresis control (THC) that can offer a robust control and quick torque dynamic performance. At first, a mathematical modeling of BLDC motor and principle of torque hysteresis control will be described, so that the benefit offered by the proposed current blocking strategy can be highlighted. It can be shown that the current control method naturally provides current limitation, in which the current error (or ripple) is restricted within the pre-defined band-gap furthermore provide current protection. The benefit of proposed current blocking strategy will be highlighted such that it can prevent the current drained from the batteries when the torque demand is released to set to 0 Nm. The control scheme is validated and verified by the simulation and experimental results.
- 2020-11-16 18:09:40下载
- 积分：1
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LMSmatlab
关于lms的matlab仿真图，以及改进算法(Lms matlab simulation on the map, and the improved algorithm)
- 2013-12-21 14:30:13下载
- 积分：1
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Fuzzy-Logic
模糊逻辑控制仿真源代码,希望对大家有帮助(fuzzy logic cntrol Matlab simulation source code)
- 2012-02-11 09:15:53下载
- 积分：1
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MATLABGUI
gui的教程，书中的例子及题目的源码．彼此是对应的(gui of course, the book＇s source code examples and topics. Each other is the corresponding)
- 2009-05-31 20:43:29下载
- 积分：1
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xunhuanpingwenchuliguofangkeda
比较经典的循环平稳的书籍，国防科大出版的，可以参考，谢谢大家分享。(More classic smooth circulation of books, published by the National Defense Science, reference, thank you for sharing.)
- 2014-08-14 19:01:15下载
- 积分：1
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DefaultCorpusRanker
DefaultCorpusRanker extends AbstractCorpusRanker.
- 2013-11-28 11:05:29下载
- 积分：1
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regress
many regression functions for different regression techniques
- 2014-12-03 02:31:44下载
- 积分：1
