snakeplannig

质子交换膜燃料电池模型，基于Matlab的燃料电池模型，适用于能源领域(The proton exchange membrane fuel cell model, Matlab-based fuel cell model, applicable in the field of energy)

E=input( enter the generator voltage: ) V=input( enter the infinite bus voltage: ) Gx=input( enter the reactance of generator: ) L1x=input( enter the line reactance: ) L2x=input( enter the line reactance: ) L3x=input( enter the line reactance: ) L4x=input( enter the line reactance: ) Pi=input( enter the input power: ) X1=Gx+L1x+((L2x*L3x)/(L2x+L3x))+L4x Pm1=E*V/X1 DO=asin(Pi/Pm1) A=((L2x*L3x)/(2*(L2x+L3x))) C=A B=((L3x/2)^2)/(L2x+L3x) X2=(Gx+L1x+A)+(L4x+A)+(Gx+L1x+A)*(A+L4x)/B Pm2=(E*V)/X2 X3=Gx+L1x+L2x+L4x Pm3=(E*V)/X3 DC=input( enter the fault clearing angle: ) Dm=(3.14-asin(Pi/Pm3)) a1=quad( sin ,DO,DC) A1=(Pi*(DC-DO)-Pm2*a1) a2=quad( sin ,DC,Dm) A2=Pm3*a2-Pi*(Dm-DC) if(A2>=A1) disp( the system is stable ) else disp( the system is unstable ) end Dcc=acos((Pi*(Dm-DO)-Pm2*(cos(DO))+Pm3*(cos(Dm)))/(Pm3-Pm2)) disp( critical clearing angle: ) Dcc

用matlab完成计算机控制中的连续系统与离散系统的实验，其间用到了关于控制技术中的各种函数，附带实验报告！(Matlab completed by computer-controlled experiments in continuous systems with discrete systems, during use of the various functions on the control technology, with a test report!)

潮流计算牛拉法和PQ分解法有详细解析，电力系统的基本潮流都有解析，纯手工(Flow Calculation cattle Rafah and PQ decomposition method has a detailed analysis)

说明：  利用小波分析具有时频局部化特性和熵能对系统状态进行表征的特点，将小波分析和熵结合起来，定义了3种小波熵（小波能谱熵、小波时间熵、小波奇异熵），并给出其算法，揭示了这3种小波熵对系统故障表征的机理，对两种理论信号和基于PSCAD/EMTDC仿真的输电线路故障信号(Based on the characteristics of time-frequency localization of wavelet analysis and entropy energy to represent system state, three kinds of wavelet entropy (wavelet energy spectrum entropy, wavelet time entropy and wavelet singular entropy) are defined by combining wavelet analysis and entropy, and their algorithms are given. The mechanism of these three kinds of wavelet entropy for system fault characterization is revealed. The results show that the three kinds of wavelet entropy can be used to characterize system fault Road fault signal)

matlab tutor for chinese. and in chinese.so who need it I think should be Chinese.

基于离散余弦变换的数字水印提取嵌入技术应用(Based on the discrete cosine transform digital watermark embedding technology to extract)

matlab扩展编程，系统的介绍了matlab扩展编程的用法和注意细节，对matlab的继续学习打下坚实的基础。(matlab extension programming, the system introduces the use of matlab extension programming and attention to detail, to the matlab' s continue to learn to lay a solid foundation.)

Labwindows Matlab interface project

说明：  设{ ,k=0,1,2,…}为N（0，1）白序列， ， =0，1,2,…,1000 。求： ； (Let {k = 0,1,2, ...} white sequence of N (0,1) = 0,1,2, ..., 1000 Requirements: )