Matlab_powerflow

MITSUBISHI 三菱M70数控系统参数表 三菱数控机床 三百两(MITSUBISHI IS VERY BEAUTIFUL CPU I LIKE THIS MITSUBISHI IS VERY NICE)

it维修管理系统+网站，原创，接修、派工、更正、返修，维修记录，客户管理，客户网站查询维修情况等。(it maintenance management system+ site, the original, then repair, dispatching, correction, repair, maintenance records, customer management, customer website maintenance and so on.)

框架剪力墙结构ansys软件APDL命令流，结构受力分析(Frame shear wall structure ansys software the APDL command-stream structural stress analysis)

地震解释处理matlab工具箱，由权威的CREWES小组发行，直接解压后复制到matlab的toolbox下就可使用(seismic interpretation Matlab toolbox, the authority issued CREWES group, unpacked directly copied to the Matlab toolbox can be used under)

NET Core+EF Core实例,自己使用了,很好,没有问题(NET Core+ EF Core instance, oneself use, is very good, no problem)

说明：  这是一个变电站的监控程序，数据库采用的是sql server7.0(This is a substation of the monitoring program, the database is used in sql server7.0)

基于FFT的快速SAR分布目标回波模拟算法. 大面积分布目标的合成孔径雷达(SAR)回波模拟需要大量的运算，文中提出了一种合成孔径雷达回波模拟的快速算法，算法利用时域插值和FFTl’来缩减运算量，对于大面积目标回波模拟时，该算法有很高的效率。文中详细分析sinc函数插值所带来的误差以及补偿方法，并在次基础上提出了一种利用增采样插值方法，该方法以增加少量运算为代价，使得模拟精度的大幅度提高。文中比较了传统方法和基于FFTl’的快速SAR分布目标回波模拟算法的模拟结果，证明了这种快速算法确实行之有效。(The simulation of distributed targets is very important to the design of synthetic aperture radar(SAR)sys- tems．Since the end product is SAR images，the echo of SAR signals needs to be simulated and then processed form SAR images，an d the parameters needs to be measured and the perform ance of the images should be，an d then evaluated．The designing parameters of SAR could be adjusted to meet the requirement of users before developing SAR systems，specially in space—bome SAR systems．Th e simulation data is also needed during the developing an d debugging of a space—borne SAR real—time processor．Another purpose of simulation is to supply a great deal of simulation imag es to train image usors of space—bo rne SAR before it launch．)

该程序实现红绿灯的触摸屏控制，编程巧妙。(traffic lights with touch screen)

用于流域水文过程模拟和预报的水箱模型，主要是在水利行业应用(For hydrological modeling and forecasting model tanks, mainly in the water industry applications)

牛顿－拉夫逊法潮流计算 基本步骤： 　　（1）形成节点导纳矩阵 　　（2）将各节点电压设初值U， 　　（3）将节点初值代入相关求式，求出修正方程式的常数项向量 　　（4）将节点电压初值代入求式，求出雅可比矩阵元素 　　（5）求解修正方程，求修正向量 　　（6）求取节点电压的新值 　　（7）检查是否收敛，如不收敛，则以各节点电压的新值作为初值自第3步重新开始进行狭义次迭代，否则转入下一步 　　（8）计算支路功率分布，PV节点无功功率和平衡节点柱入功率。(Newton-Raphson method flow calculation basic steps : (1) formation of nodal admittance matrix (2) to set up the initial node voltage U, (3) the initial node-generation-related demand. calculated that the constant term formula Vector (4) nodes will be incorporated into the initial voltage-seeking, calculated Jacobian matrix elements (5) solving that equation, seek to amend the vector (6) to strike a new node voltage value (7) to check whether convergence, if not restrained. concentrated in the nodes of the new voltage as the initial value since the first three steps to re-start the narrow iterations. Otherwise, turn into the next (8) Calculation branch power distribution, PV nodes reactive power and balance-node into power.)