GA_OPF

对MMC拓扑结构进行描述，方面研究模块化多电平拓扑结构人员学习(The MMC topology is described, and the modular multilevel topology is studied.)

在这项研究工作中主要集中开发基于混合光伏风电系统的智能控制和电网整合以及电池存储系统。电网整合混合式PV-Wind与基于智能控制器的电池管理系统[BMS]已经在Matlab中开发了一个仿真模型，并分析了正常条件下的系统性能。同样的系统已经用UPFC模拟，并分析了不同故障条件下的系统性能。(In this research work focused on the development of smart grid integration and control, and battery storage system based on photovoltaic hybrid wind systems. Grid integration hybrid PV-Wind-based intelligent controller and a battery management system [BMS] has developed a simulation model in Matlab and analyze system performance under normal conditions. The same system has been used UPFC simulation, and analysis of the performance of the system under various fault conditions.)

说明：  对于电力系统网络，当其发生小电流接地故障时，分析其特性(For power system network, its characteristics are analyzed when a small current grounding fault occurs)

说明：  利用Blackman窗函数对工频信号进行加窗FFT后校正计算出基波和谐波的幅值、频率和初始相角。(Blackman window function using frequency signal windowed FFT is calculated after the correction of fundamental and harmonic amplitude, frequency and initial phase angle.)

是一个s7-200 smart与台达变频器通讯及电机控制的程序(Is a S7-200 smart and delta inverter communication and motor control procedures)

离网型DFIG控制的仿真，采用定子磁链定向的矢量控制实现对离网型DFIG的控制( U79BB u7783 u7A1 u5A1 u5B0 u5B0 u7B0 u7B0 u5BF U79BB u7F51 u578BDFIG u7684 u63A7 u5236)

说明：  对电力系统进行交流潮流计算，计算方法为极坐标系下的牛顿拉夫逊法。(The AC power flow of power system is calculated by Newton Raphson method in polar coordinate system.)

说明：  对于已知的电路结构，求解其网络分析的状态变量法(For the known circuit structure, the state variable method is used to solve the network analysis)

电力变压器是电力系统中的主要设备之一，利用它可以把不同电压的电网联结在一起，组成复杂的电网或庞大的电力系统，并在其中发挥着重要的作用。电力变压器的可靠运行关系到整个电网的安全，如何对电力变压器的运行中的故障进行诊断，已成为电力部门急需解决的问题。目前，以油中溶解气体为特征量对变压器的故障进行分析，得到了广泛应用。 本次设计要求对电力变压器的内部故障进行广泛了解，并应用BP神经网络对变压器进行智能故障诊断软件设计，实现变压器内部故障论断。主要包括以下内容： 1、掌握用以变压器油中气体为特征量，用BP神经网络诊断变压器内部故障的方法 2、用 Visual Basic编制变压器故障诊断软件，具有以下功能： a) 数据管理功能。包括变压器信息，色谱数据信息等 b) 故障诊断功能。包括用BP神经网络诊断变压器故障的具体实现方法，并给出故障诊断结果 c) 图形显示功能。包括对同一变压器内气体浓度变化曲线的显示等 d) 辅助功能。如帮助信息，诊断方法的介绍等 (Power transformer is one of the main equipment in power system, it can use the network of different voltage linked together, to form a complex network or large electric power system, and plays an important role in it. Power transformer for the reliable operation of the power grid safety, how to run in power transformer fault diagnosis, has become urgent to solve the problem of electric power sector. At present, the DGA in transformer fault analysis, obtained the widespread application. The design of power transformer internal fault is widely understood, and the application of BP neural network to transformer fault diagnosis software design, realization of transformer internal fault diagnosis. Mainly include the following contents: 1, master for gas in transformer oil as features, using BP neural network diagnosis method of transformer internal fault In 2, Visual Basic system of transformer fault diagnosis software, has the following functions: A ) data management function. )

说明：  BP神经网络预测汽油浓度，神经网络，MATLAB(BP neural network prediction of gasoline concentration, neural network, matlab)