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Design
典型结艺产品三维结构快速设计方法Typical three-dimensional structure of product rapid knot Arts Design(Typical three-dimensional structure of product rapid knot Arts Design)
- 2011-06-21 08:26:59下载
- 积分：1
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QNMVD100系列高压变频器的使用说明手册
QNMVD100系列高压变频器的使用说明手册。本产品的技术方案采用串桥级联多电平逆变器的主电路拓扑结构。高压变频器通过移相隔离变压器将三相6kV高压交流电，变换成3×5组错相的三相690V低压交流电，分别经功率单元整流、逆变、串联叠加形成0~6kV、0~50Hz的交流电压输出至异步电动机(QNMVD100 series of high-voltage inverter)
- 2011-07-15 15:25:53下载
- 积分：1
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5
说明： 基于agent 的入侵检测系统，希望对大家有用(Agent-based intrusion detection system, in the hope that useful to everybody)
- 2008-08-05 16:20:48下载
- 积分：1
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01327802
Exact Thresholds and Optimal Codes for the
Binary-Symmetric Channel and Gallager’s
Decoding Algorithm A
- 2010-07-29 15:03:13下载
- 积分：1
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softwarephaselockedloop
在电网电压频率波动或者三相不平衡的情况下,硬件锁相很难准确检测到基波正序的相位。在结合PWM整流器空间矢量解耦控制算法的基础上,将软件锁相环技术应用在PWM整流器控制系统中,并用仿真和实验验证了该方案的可行性。实验结果表明,该方案解决了电网电压频率波动及三相不平衡时的相位同步等问题,并在工程上具有一定参考价值。(Frequency or voltage fluctuations in three-phase unbalanced case, the hardware lock is difficult to accurately detect the fundamental positive sequence phase. In the space vector PWM rectifier with decoupling control algorithm based on the software used in the PWM rectifier PLL control system, and use simulation and experimental verification of the feasibility. Experimental results show that the solutions to address the voltage and frequency fluctuations of the phase unbalanced three-phase synchronization issues, and the project has a certain reference value.)
- 2020-10-19 09:17:26下载
- 积分：1
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double-input-z-source
double in pu z source inverter amterea
- 2012-07-01 14:18:26下载
- 积分：1
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based-on-SVPWMvectorcontrol
为了给变频调速系统提供必要的设计参数，依据空间电压矢量脉宽调制（SVPWM）基本原理，介绍了
异步电动机及 SVPWM 算法在 Matlab/Simulink 环境下的建模过程及基于矢量控制理论的变频调速系统动态
模型建立。详细地阐述了实现仿真的方法，并针对仿真中的关键问题及系统的仿真结果进行了分析。仿真结
果表明，采用该控制系统，电压及转矩波动小，转速响应迅速，系统的各项指标都满足电机实际运行特性要
求。其仿真算法对于实现数字化控制变频调速系统具有一定的价值。
(To provide the necessary design parameters for the actual motor control system, the modeling course of
voltage space vector pulse wide modulation（SVPWM）agrithmetic and AC motor under Matlab/Simulink environment
are introduced. The dynamic model of variable frequency speed regulating system based on vector control is
discussed according to the principle of SVPWM. The new method of realizing simulation, key problems and
results of the simulation are analyzed in detail. The experimental simulation results show that this system has
smaller fluctuations of voltage and torque, quicker response speed, and all of the indicators accord with the
performance of the actual motor. The simulation agrithmetic have value to realize controlling motor with digital
signal processing.
)
- 2021-04-21 10:48:49下载
- 积分：1
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HVDCLIGHTSYSTEM
SIMULINK MODELS OF HVDC LIGHT SYSTEM
- 2011-10-20 05:09:00下载
- 积分：1
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s-tranformandinverse_st
关于s变换的和反变换代码，也是做毕业论文时搜到的，希望大家没能用到(A basis for efficient representation of the S-transform invert S-transform ,also have some examples)
- 2014-05-06 10:57:16下载
- 积分：1
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5kW
5kW光伏最大功率点跟踪电路的设计,采用DCDC模式升压(5kW photovoltaic maximum power point tracking circuit design, DCDC mode boost)
- 2013-01-23 13:04:54下载
- 积分：1
