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TheDesignof35kVGridRelayprotection
本压缩包 包含 任务书、论文以及答辩ppt，虽说是课程设计，但是按照毕业设计书写，内容充实
本次课程设计主要是对象湖变的电网进行保护整定，对d1至d6共6个地方进行了最大方式与最小方式运行情况下的短路电流计算。计算完短路电流后，对L1至L5共5条线路进行电流保护整定。但是由于线路较短，线路阻抗较小。经计算后均不适合三段式电流保护。所以采取了纵联差动保护作为主保护，定时限过电流保护作为后备保护。对于变压器，采用纵联差动保护与气体保护共同作为主保护，过负荷保护作为后备保护。(The curriculum design is the object variable grid lake protection setting of D1 to D6, 6 places for the maximum and minimum operation mode under the condition of short-circuit current calculation. Calculation of short-circuit current after the end, L1 to L5 a total of 5 lines of current protection setting. But because of shorter lines, line impedance is small. The calculations are not suitable for three phase current protection. So take a longitudinal differential protection as the main protection, timing and limiting current protection as a back-up protection. For transformers, using longitudinal differential protection and gas protection as the main protection, overload protection as a back-up protection.)
- 2012-03-06 16:26:36下载
- 积分：1
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DDCFPGA
针对DVB-T标准ETSI EN 300 744 V1.5.1,设计了可用于DVB-T接收整机的多速率DDC模块,并在FPGA中仿真实现.在复用数字振荡混频模块的基础上,根据输入信号的不同带宽(6M/8MHz)选择不同的抽取滤波器组完成抽取因子为3或4的多速率处理任务,利用两级半带滤波器(HBF)级联完成4倍抽取滤波,单级奈奎斯特滤波器完成3倍抽取滤波. (For the DVB-T standard ETSI EN 300 744 V1.5.1, designed for DVB-T receiver machine multi-rate DDC module, and the simulation in the FPGA implementation. Numerical oscillation in the complex mixer module, based on the input signals of different bandwidths (6M/8MHz) choose a different group of complete decimation filter extracted factor 3 or 4 of the multi-rate processing tasks, using two half-band filter (HBF) cascade to complete four times decimation filter, single-stage Chennai Nyquist filter to complete three times the decimation filtering.)
- 2009-09-13 22:24:41下载
- 积分：1
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AD421
在AD421搭建的过程中如何检测A 联合开发网 - pudn.com
- 2013-09-27 15:58:10下载
- 积分：1
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paper688
随着并联机构学理论的日益成熟，并联摇摆台以其大刚度、高精度和重载等优点，广泛应用于机械、航海和航天等领域。其中，以车辆模拟台的应用最为广泛。车辆在行驶过程中由于受到路况等扰动因素的影响，会产生横摇、纵倾、转艏、前冲、横移和升降共6种位姿的运动，而通过六自由摇摆台能将车辆的这些运动真实的再现出来。
本文以项目——六自由度重型摇摆台的研制为依托，在对国内外六自由度摇摆台的研究现状做了比较深入、系统分析的基础上，对车辆重型摇摆台与负载锁定结构进行了分析优化，主要的研究内容如下：
首先，对六自由度重型摇摆台进行运动学建模，分析、优化机构在六种独立姿态及部分耦合位姿情况下支撑杆的运动范围，最终确定了支撑杆合理的转角空间和上下铰链座的结构，提高了机构的运动学、动力学性能。
(With the development of theory of parallel mechanism, parallel plat quickly enters the international market for high stiffness、high precision and heavy load, which is widely used in mechanical、navigation and aviation, etc. Among these parallel plats, the vehicle simulator is the most widely used. Due to the disturbance factors of ups and downs of the different roads, vehicle has 6 degrees of freedom during its traveling movements, such as rolling、pitching、yawing、surging、swaying and heaving that can be simulated in the use of 6-DOF platform.
Based on the project of heavy platform, this paper optimizes the platform and the load locking structure after the in-depth and systematic analysis of 6-DOF parallel plat at home and abroad, the main research contents are as follows:
Firstly, this paper establish the kinematic modeling that is used to analyze the rotating range of the axis belonging to the supporting pole in many traveling conditions, such as one of six movements indepe)
- 2012-09-08 17:47:11下载
- 积分：1
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HV_SOLAR_DC_DC
数字太阳能逆变器方案，全套设计资料。含祥细源码及硬件原理。(Digital solar inverter solutions, complete design information. Xiangxi containing source code and hardware schematics.)
- 2013-10-26 22:58:08下载
- 积分：1
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WT2000PFM1188
声音对讲和压缩IC，WT2000+FM1188设计方案参考(Voice intercom and compression IC, WT2000+FM1188 design reference)
- 2013-08-24 11:56:29下载
- 积分：1
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PhD-Dissertation
关于二型模糊的一篇博士论文，对于二型模糊的学习很有帮助(A fuzzy about two doctoral thesis, for two fuzzy learning helpful.)
- 2015-04-13 09:54:05下载
- 积分：1
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ABC-AFS
说明： 一种基于ABC-AFS算法的混合入侵检测系统，用于误用和异常检测(A hybrid intrusion detection system based on ABC-AFS algorithm for misuse and anomaly detection)
- 2019-04-05 19:49:09下载
- 积分：1
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NetPrograme
网络课程设计报告——以学院校园为背景，设计一个校园网方案(Online Course Design Report- to college campuses as the background to design a campus network program)
- 2009-10-12 14:08:47下载
- 积分：1
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danbihuanboost
boost变换器闭环控制设计方案及仿真模型(Boost converter closed-loop control design scheme and simulation model)
- 2020-11-07 17:19:50下载
- 积分：1
