cementedsand

电力市场下日无功计划优化模型和算法的研究,电力市场下日无功计划优化模型和算法的研究(Electricity Market Day reactive plan optimization model and algorithm research, Electricity Market Day reactive plan optimization model and algorithm research)

这是分别基于两电平SVPWM和三电平SVPWM的PMSM矢量控制模型，对初学者比较实用，采用matlab2012以上版本打开！(This is based on two level SVPWM and three level SVPWM PMSM vector control model, more practical for beginners! Use matlab2012 or more to open.)

Mifare USBMiCard.DLL - Visual C/C++ Source Program(Mifare USBMiCard.DLL- Visual C/C++ Source Program)

说明：  用于激光扫描的RTC5振镜控制程序，带界面(RTC5 Galvanometer Control Program for Laser Scanning with Interface)

电力系统潮流计算，基于三机九节点，可以在说明的基础上增加节点，改变线路阻抗导纳以及功率(Power system power flow calculation)

煤矿信息管理系统是基于SuperMap Object，使用 C#语言开发的煤矿信息管理系统 系统主要实现煤矿信息的管理，包括属性数据和图形数据的管理。其中最重要的部分是钻孔数据的管理， 比较理想的解决了钻孔数据的查询、浏览、修改、添加、删除和导出，并着重实现了钻孔剖面示意图的自动绘制， 此外还实现了计算机图件的管理、地图数据集导出、地图输出打印等功能。(Mine information management system is based on SuperMap Object, using the C# Language developed by the Information Management System for Mine realize mine of information systems management, including the attribute data and graphical data management. One of the most important part is the management of borehole data, a more satisfactory solution to the borehole data query, browse, modify, add, delete and export, and focus on the achievement of the drilling section diagram of automatic drawing, in addition to realize a computer management maps, maps derived data sets, maps output printing.)

gpt2w5模型代码 通过更改参数可得到对流层延迟量值 MATLAB(gpt2w5 model code MATLAB Tropospheric delay can be obtained by changing parameters)

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.)

电力系统IEEE 300节点标准数据，包含IEEE标准数据格式cdf和pti格式，是电力系统潮流计算的标准case(Power systems IEEE 300-node standard data, including the IEEE standard data formats cdf and pti format is the standard case of power flow calculation)

测绘小软件，七参数坐标转换，解决一些坐标转换问题，复杂问题简单化(surveying and mapping)