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异步电机软起动仿真5.16
说明： 异步电机作为电网中较为主要的负荷，对其的控制一直是重要问题。在异步电机的起动过程中，若直接起动，则会引起较大的电流，会影响电网的稳定和安全；且起动转矩和运行效率也较低。为改善上述问题，使用软起动器对异步电机进行起动，可实现启动电压的无极调节，从而限制启动电流，可在一定程度上改善电机性能。本文采用电流闭环作为控制方式，并采用MATLAB对异步电机软起动系统进行模型搭建和仿真，进而说明了软起动的优势。(As the main load in the power network, the control of asynchronous motor is always an important problem.In the starting process of asynchronous motor, if directly started, it will cause a large current, will affect the stability and safety of the power grid;The starting torque and operating efficiency are also low.In order to improve the above problems, the use of soft starter to start the asynchronous motor can realize the non-pole adjustment of starting voltage, thus limiting the starting current, which can improve the motor performance to a certain extent.In this paper, the current closed-loop is adopted as the control mode, and MATLAB is used to build the model and simulate the soft starting system of asynchronous motor, and then the advantages of soft starting are illustrated.)
- 2021-01-16 21:38:46下载
- 积分：1
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Protel99
protel添加库()
- 2018-05-20 23:37:16下载
- 积分：1
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VLMpc
Vortex lattice analysis and design: VLMpc(John Lamar s two surface vortex lattice program, developed at NASA Langley. The program treats two lifting surfaces using up to 200 panels. Vortex flows are estimated using the leading edge suction analogy. This program was typed in the NASA TN D, which contained the listing, by students in Applied Computational Aerodynamics nearly 10 years ago. John Lamar didn t have a copy of the code anymore. It has been modified to run in WATFOR, and to produce 80 column output. Now it runs in Compaq Visual Fortran. In November 2002 an executable has been added. The source now includes PC directory code specific to PCs. )
- 2015-10-23 22:14:40下载
- 积分：1
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this a vb series of the GPS program's source code, as long as you will want...
这个是一个vb编的GPS程序的源代码，呵呵希望对大家会有所帮助！-this a vb series of the GPS program"s source code, as long as you will want to help!
- 2022-02-02 06:01:30下载
- 积分：1
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2018-2019-2离散数学复习资料
复习离散数学，提高学习能力，更加清楚离散(Reviewing Discrete Mathematics to Improve Learning Ability and Clear Discrete Mathematics)
- 2021-01-28 21:28:36下载
- 积分：1
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API(keyboard and mouse)
Labview使用API方式调用Windows的鼠标键盘(Labview calls Windows mouse keyboard using API)
- 2019-04-27 15:47:07下载
- 积分：1
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AEB_Function
说明： 利用相对速度、相对距离，根据TTC时间模型，可实现基本AEB功能(This code implements basic AEB functions)
- 2020-07-01 21:20:02下载
- 积分：1
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织构程序
用于解织构下的雷诺方程，用于在表面价织构的油润滑轴承(The Reynolds equation for texture analysis is applied to oil lubricated bearings on surface texture.)
- 2021-04-08 10:09:01下载
- 积分：1
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非常经典的关于LLC的杨波博士论文
说明： 经典的LLC论文，通过学习该文档，加深对LLC电路的理解。(Classic LLC thesis, through learning this document, deepen the understanding of LLC circuit.)
- 2020-02-23 20:16:11下载
- 积分：1
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VB时时聊天系统
vb服务器和客户端，时时通讯程序，已经通过测试，代码简洁，运行速度快，局域网和广域网都能用。本程序代码采用UDP广播形式连接，不占用cpu资源。
- 2023-08-13 15:05:03下载
- 积分：1
