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DFIG
关于DFIG的低压穿越能力的研究。对以后实现低压穿越做一些探索性的工作(Along with the sharp increase in the proportion of wind power supply some areas the impact of Large-scale wind farms for the stability of regional power grid is more significant. The research on low voltage ride-through (LVRT) of wind power system based on doubly-fed induction generators (DFIG) becomes a hot issue. In this paper ,Firstly introduces the concept of low voltage ride-through technology, The standards of LVRT of some European countries are presented, And then analyses and compares the kinds of common realize low voltage ride- technology and improve control strategy. The transient characteristics of DFIG when the grid voltage sagging.)
- 2012-03-18 16:18:38下载
- 积分:1
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wsn path using Dijkstra
wsn using djkstra, use to find the shortest path between the nodes
- 2018-01-24 02:35:05下载
- 积分:1
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transforms_C
transform program in OpenGL.
this program is written using c++.
- 2009-10-21 14:09:13下载
- 积分:1
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OURS-IOTV2-2530
能够用来开发物联网的系统,北京奥尔斯电子开发套件(System can be used to develop the Internet of Things, Beijing OURS Development Kit)
- 2012-12-26 12:17:37下载
- 积分:1
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05.03广东WAP
说明: 05.03广东WAP
0 5.03广东WAP
05.03广东WAP(05.03 Guangdong WAP 05.03 05.03 Guangdong WAP )
- 2005-11-02 15:10:55下载
- 积分:1
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Applying-Power-Battery--in-Grid
通过动力电池参与电网调峰应用分析,论述电动汽车动力电池移动储能技术应用优势、可行性和基本
系统模型,为今后的研究提供参考
(In this paper, the application ofpowerbatteries for the peak regulation in gridwas analyzed. The advanta-
ges, feasibilities and basic system model of the mobile energy-storage technology were discussed, which provided
some references for further research.
)
- 2011-08-10 11:14:03下载
- 积分:1
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survey
这个对运动估计的一个综述性论文,IEEE论文,很权威,对于把握图像处理研究。很值得看看(In the motion estimation, a review paper, IEEE papers, very authoritative, for the capture image processing research. It is worth a look)
- 2013-07-31 15:34:32下载
- 积分:1
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fund
基金投资从入门到精通 基金投资从入门到精通 基金投资从入门到精通(funds from the investment fund proficient portal to portal investment from the investment of funds from proficient to proficient portal Fund investment income from proficient doors to investment funds from entry level to proficiency)
- 2007-06-13 16:32:37下载
- 积分:1
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JTXHFANGZHEN
本文在分析城市交通信号控制研究现状和交叉口交通信号控制原理、评价方
法的基础上,设计了单交叉口交通信号两级模糊控制系统。分级模糊控制能有效
减少模糊规则数,易于提取模糊规则,适合于交通状况复杂的城市交叉口交通信
号控制。但它存在难以由人工合理定义全部模糊隶属度函数的问题。为此本文进
一步采用遗传算法对两级模糊控制器中模糊隶属度函数进行优化。本文提出的方
法具有分级模糊控制的优点,同时可以使模糊隶属度的选取更为合理,获得更好
的控制效果。对一个四相位单交叉口,利用MATLAB在不同的交通条件下进行
了仿真,并利用交通仿真软件PARAMICS进行了可视化仿真。仿真结果表明该
方法能有效降低通行车辆在交叉口的平均等待时间,明显优于传统控制方法(After analyzing the city-traffic developments,the grade crossings control theory
its method of evaluation,the paper designs a traffic signal two-stage fuzzy control
tem for single intersection.Two-stage fuzzy controller,which is easy to acquire
zy rules and can greatly decrease the number of fuzzy rules,is very suitable to
plex urban intersection control.But it still presents a difficulty for deciding all the
bership functions correctly only by human experience.Therefor,to solve this
blem,a technique using genetic algorithm to modify its fuzzy membership
ctions is proposed.This method not only possesses the advantages of hierarchical
zy control,but also can change its membership functions adaptively to an optimal
ing in different traffic situations as well,and in this way the currency power of the
an intersection is improved.For a single urban intersection with four-phase,
ulation of different traffic condition is processed by using MATLAB.Moreover,
ble simulation is proce)
- 2009-12-07 22:30:53下载
- 积分:1
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WInternet-From-thing-to-IOT
最新的物联网的前沿研究讨论,对物联网的发展有一定参考意义。(The latest cutting-edge research of Internet of things to discuss, has certain reference significance to the development of the Internet of things.)
- 2013-11-05 12:46:49下载
- 积分:1