PCA

脉冲宽度调制（PWM）是英文“Pulse Width Modulation”的缩写，简称脉宽调制。它是利用微处理器的数字输出来对模拟电路进行控制的一种非常有效的技术，广泛应用于测量，通信，功率控制与变换等许多领域。一种模拟控制方式，根据相应载荷的变化来调制晶体管栅极或基极的偏置，来实现开关稳压电源输出晶 体管或晶体管导通时间的改变，这种方式能使电源的输出电压在工作条件变化时保持恒定。　　脉冲宽 (Pulse width modulation (PWM) is the English " Pulse Width Modulation" acronym, or pulse width modulation. It is the use of the microprocessor to the digital output of analog circuits for the control of a very effective technology, widely used in measurement, communications, power control and many other fields with the transformation. An analog control means, in accordance with the corresponding changes in load modulation transistor gate or base bias, switching power supply to achieve the output transistors or transistor on-time changes in power in this way can the output voltage in the workplace conditions of constant change. Pulse width)

具体介绍了光伏并网与有源滤波控制原理，以及控制流程，论文结果非常具有代表性，具有较高的参考价值(Specific photovoltaic (pv) grid and active filter control principle are introduced, and control process, the paper the results is very representative, has the high reference value)

动态管理频谱分配的代码，在matlab开发环境下，简单计算频谱分配法则贪心法(Dynamic management of spectrum allocation code in the MATLAB development environment, a simple calculation spectrum allocation rules greedy method)

说明：  首先从微电源、储能元件、负荷各方面对微网建模展开研究,并在对现有的电力系统随机潮流算法进行全面对比分析的基础上,重点研究了基于半不变量及Gram-Charlier级数的随机潮流算法,将其应用于微网的随机潮流计算分析中。(Firstly, micro-grid modeling is studied from the aspects of micro-power supply, energy storage components and load. On the basis of comprehensive comparative analysis of existing power system stochastic power flow algorithms, the stochastic power flow algorithm based on semi-invariant and Gram-Charlier series is studied, and applied to the stochastic power flow calculation and analysis of micro-grid.)

descripteur sift 3D

simulation sous simulink, de la machine asynchrone triphase avec commande pleine onde, et vecteurs complexex de la MAS

规划求解的matlab程序，用于实现通过线性规划来寻求最优解。(Programming in matlab program, used to achieve the linear programming to find the optimal solution. )

binary tree explaination ebook

在Matlab应用系统中，创建数据文件，得到符合要求的界面(in Matlab Application System to create data files, to be compliant interface)

ED problem Increase monthly production and sales by 20 by second quarter of this year