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powernode
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.)
- 2007-07-10 19:08:09下载
- 积分：1
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一个时钟程序，c语言下的
一个时钟程序，c语言下的-a clock procedures, the language c
- 2022-03-09 20:47:20下载
- 积分：1
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read-and-display-data
读取测量到的数据，并显示波形图，历史曲线(read and display measurement data,as wave chart)
- 2012-03-16 11:48:14下载
- 积分：1
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示波器设计源工程
说明： 示波器设计，首先，AD模块对模拟信号进行采样，触发电路根据采样信号判断触发条件。满足触发条件后，连续采样一定数量的点（本系统中为640个点），存储到RAM中。峰峰值、频率计算模块对RAM中储存的波形数据进行计算，得到波形的频率以及峰峰值；VGA模块将波形显示出来，并显示计算得到的峰峰值和频率数值。(Firstly, the ad module samples the analog signal, and the trigger circuit judges the trigger condition according to the sampling signal. After meeting the trigger conditions, a certain number of points (640 points in this system) are sampled continuously and stored in RAM. The peak to peak and frequency calculation module calculates the waveform data stored in RAM to obtain the frequency and peak to peak of the waveform; the VGA module displays the waveform and displays the calculated peak to peak and frequency values.)
- 2021-01-02 17:29:54下载
- 积分：1
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计算质数的一个公式.
计算质数的一个公式.-calculation of a standard formula.
- 2022-02-06 18:57:01下载
- 积分：1
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dkink the jigsaw puzzle, very very simple, new favorite.
dkink的拼图游戏，很小很简单，新手的最爱。-dkink the jigsaw puzzle, very very simple, new favorite.
- 2022-03-20 21:37:19下载
- 积分：1
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水准网间接平差程序设计
水准平差程序，可以处理间接平差各个等级水准，采用VB编写(Leveling adjustment program, which can handle all levels of indirect adjustment, is written in VB)
- 2018-06-27 13:07:58下载
- 积分：1
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59564341BPneuro
说明： 神经网络进行预测控制，内含多个文件，请注意找到主函数进行运行(Neural Network for predictive control, including a number of files, please note to find the main function to run)
- 2020-12-23 20:29:05下载
- 积分：1
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showmdls
显现python模块属性和方法的小工具，用python开发(show python method and attribute)
- 2011-09-24 13:51:56下载
- 积分：1
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secret tool for reading, is hidden tools to use when reading, it seems should be...
秘密阅读工具，属于隐秘工具
在阅读时使用，好象应该不错
-secret tool for reading, is hidden tools to use when reading, it seems should be good
- 2022-03-12 00:26:25下载
- 积分：1
