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chongfukongzhi
实现有源电力滤波器的电流跟踪控制，能够代替传统PI控制策略(Active power filter current tracking control can replace the traditional PI control strategy)
- 2017-08-28 19:27:40下载
- 积分：1
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FDA range-angle dependent transmit beamforming
频率分集阵列发射波束图仿真，发射波束具有距离-角度耦合性，发射波束图最大值周期性出现，周期等于c/Deltaf。另外，提供了仿真所用的参考文献。(Transmit beamforming of frequency diverse array is range-angle dependent and its maximam is periodic occurrence. the period is equal to c/Deltaf. besides, the references are provided.)
- 2018-07-02 15:02:12下载
- 积分：1
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三相永磁同步电机矢量控制建模与仿真
本文首先分析了永磁同步电机矢量控制的发展概况，然后从机电能量转换的角度出发，解释三相永磁同步电机的机电能量转换原理，推导拉格朗日运动方程。此外，列写出永磁同步电机在三相静止坐标系和dq坐标系下的数学模型。基于Simulink建立了转速电流双闭环矢量控制系统的仿真模型，通过对仿真结果分析，验证了永磁同步电机矢量控制系统性能的优越性。(This paper first analyzes the development of permanent magnet synchronous motor vector control, and then explains the electromechanical energy conversion principle of three-phase permanent magnet synchronous motor from the perspective of electromechanical energy conversion, and deduce the Lagrange motion equation. In addition, the mathematical model of permanent magnet synchronous motor (PMSM) in three phase stationary coordinate system and dq coordinate system is listed. Based on Simulink, a simulation model of speed and current double closed loop vector control system is established. By analyzing the simulation results, the performance of PMSM vector control system is verified.)
- 2018-03-27 17:09:35下载
- 积分：1
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_基于射线跟踪模型的3.5 GHz无线传播特性研究
说明： 3.5 GHz 是 5G 网络部署的重要频段，本文结合射线跟踪模型，对 3.5 GHz 的无线传播特性进行了研究，并于 1.8 GHz 进行了对比，提出 5G 网络初期部署的建议(3.5GHz is an important frequency band for 5g network deployment. In this paper, the radio propagation characteristics of 3.5GHz are studied in combination with ray tracing model, and compared with 1.8GHz. Suggestions for initial deployment of 5g network are proposed)
- 2019-12-11 10:08:09下载
- 积分：1
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基于阵型的误差分析
对等边直角三角形阵和立体三棱锥阵进行仿真建模，并进行了定向定位的误差分析，得到了相应的波形。(The simulation modeling of the equilateral triangle array and the stereoscopic three pyramid array is carried out, and the error analysis of directional positioning is carried out, and the corresponding waveforms are obtained.)
- 2017-12-05 11:34:47下载
- 积分：1
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lcl滤波并网
说明： 并网逆变器通常采用L滤波器，虽然结构和控制简单，但是随着功率级别的增加会地带来体积重量增大等问题。LCL滤波器适用于功率较大的场合。(Grid-connected inverters usually use L filters. Although the structure and control are simple, problems such as volume and weight increase with the increase of power level. The LCL filter is suitable for occasions with large power.)
- 2020-03-16 19:10:24下载
- 积分：1
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无人机模型_GUI
说明： 无人机模型，GUI界面，模拟飞机飞行过程(UAV model
GUI interface
Simulation of aircraft flight process)
- 2020-10-29 17:22:20下载
- 积分：1
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UMMDp180718
说明： 新的屈服准则ABAQUS子程序UMAT，含有多种较新的准侧，能很好运用(The new yield criterion ABAQUS subroutine UMAT contains a variety of newer standards and can be used very well.)
- 2021-03-22 21:19:16下载
- 积分：1
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2dcohesive
说明： 平面用cohesive单元模拟仿真裂纹扩展和结构失效，裂纹扩展(Plane simulation of crack growth and structure failure, crack growth with cohesive element)
- 2019-11-21 10:38:54下载
- 积分：1
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insert_cohesive
说明： 在abaqus中可以实现零厚度的cohesive插入(Implementing cohesive insertion with zero thickness)
- 2021-03-02 21:29:34下载
- 积分：1
