test4

基于FPGA的16点FFT快速傅立叶变换的Verilog源代码。(the FFT implement of Verilog based on FPGA)

本文为直流微电网中的多个dc-ES建立了分布式协同控制框架，并给出了系统的小信号稳定性分析。 主要级别实现下垂控制以协调多个dc-ES的操作。 次级控制基于一致性算法来调节直流母线电压基准，并结合dc-ES之间的充电状态（SOC）平衡。 通过该设计，协同控制可以实现平均直流总线电压一致，并且仅使用邻居到邻居信息来维持不同dc-ES之间的SOC平衡。 此外，开发了具有主控制器和辅助控制器的四个dc-ES系统的小信号模型。 提出了特征值分析，以显示通信权重对系统稳定性的影响。(This paper establishes a distributed cooperative control framework for multiple dc-ESs in a dc microgrid and presents the small-signal stability analysis of the system. The primary level implements a droop control to coordinate the operations of multiple dc-ESs. The secondary control is based on a consensus algorithm to regulate the dc-bus voltage reference, incorporating the state-of-charge (SOC) balance among dc-ESs. With the design, the cooperative control can achieve average dc-bus voltage consensus and maintain SOC balance among different dc-ESs using only neighbor-to-neighbor information. Furthermore, a small-signal model of a four dc-ESs system with the primary and secondary controllers is developed. The eigenvalue analysis is presented to show the effect of the communication weight on system stability.)

棋盘格 棋盘格标定图纸27X27

说明：  姜弘道编写的弹性力学问题的边界元程序，用matlab运行。(The boundary element program of elastic mechanics compiled by Jiang Hongdao is run by MATLAB.)

testing upload of 2 length must be higher

说明：  matlab编写的二级齿轮动力学求解程序，考虑了时变刚度。(Matlab program for solving the dynamics of secondary gears takes into account the time-varying stiffness.)

说明：  一款效果使用纯js和CSS3制作的炫酷3D立体卡通文字特效(A cool 3D cartoon text special effect using pure JS and CSS3)

客流统计系统源程序, 客流统计系统源程序-Passenger statistics system source code

说明：  将频域信号变换到波数域，希望可以帮助大家(Transform the signal in the frequency domain to the wavenumber domain)

化学方程配平软件-chemical equation balancing software