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A new grid load frequency control approach is proposed for the doubly fed induction generator based wind power plants. The load frequency control issue in a power system is undergoing fundamental changes due to the rapidly growing amount of wind energy conversation system, and concentrating on maintaining generation-load balance and disturbance rejection. The prominent feature of the linear active disturbance rejection control approach is that the total disturbance can be estimated and then eliminated in real time. And thus, it is a feasible solution to deal with the load frequency control issue. In this paper, the application of the linear active disturbance rejection control approach in the load frequency control issue for a complex power system with wind energy conversation system based on doubly fed induction generator is investigated.

电子科技大学，数学学院，本科二年级，数学实验课程作业：扫地机器人的路径规划问题 实验是内容是规划并利用MATLAB模拟扫地机器人的清扫路径，并与随机游走的清扫方式做对比 编程思路： 规定扫地机器人的尺寸为1×1的网格，地图尺寸为20×15（参数可修改），在利用矩阵Tag储存障碍物信息（障碍物标1，非障碍物标0），barrier_generate函数随即生成障碍物 路径规划考虑采用深度优先搜索算法，根据标记矩阵Tag的信息，找到网格之间可达性关系，建立图的邻接压缩表，深度优先搜索求出路径（深度优先所搜算法是在别人的代码上进行修改） 可视化过程中首先建立起地图网格，利用网格着色体现扫地机器人的运动过程，白色表示未清扫过，黑色表示障碍物，蓝色表示清扫过一次，红色表示反复清扫过。 随机游走采用向上下左右四个方向等可能地游走，可视化过程和路径规划的一样 主函数返回的是路径规划和随机游走所花的总步数(Simulation of Robot Sweeper)

这是一个关于计算机图的一些简单操作的程序，初次作品，谢谢支持-This is a map on the computer of some simple operating procedures, the initial entries, I would like to thank support

说明：  用S7-200自由口与安科瑞多功能电表通讯 ,读出五个变压器的当前正向有功电度,分开每天谷 峰 平段电度,保存31天,并读出变压器电流,计当前功率. 减轻电工劳动强度,动力室抄表更加灵活性(Communication between Siemens Freeport and Intelligent Meter 645 Protocol)

看游戏自己把拉链放进罐子里就行了

灰色理论原理，对数学建模解决预测问题很有用的ppt，如有不足，希望大家多多改正！-Gray theory principle of mathematical modeling to solve the issue of prediction useful ppt, is insufficient, I hope everyone a lot to correct!

OP27G数据手册,精密运算放大器，来自德州仪器公司。(OP27G datasheet)

OPC 服务端 通用软件 支持各种windows版本(OPC Server CAN BE UESED WHEN YOU NEED)

这是DS12887的源程序-This is the source of DS12887

Yousay Illegal I say Legitimate