cx5_5

按能量最大的观点自适应提取系统各测点特征频带下的暂态零模电流，并利用暂态零模电流相关性实现故障选线(According to the viewpoint of maximum energy, the transient zero mode current under the characteristic frequency band of each point in the system is extracted, and the fault line selection is realized by using the transient zero mode current correlation)

光伏阵列基于升压电路（BOOST）的最大功率跟踪算法 -差分进化算法，适用于多峰条件(Photovoltaic array based on booster circuit (BOOST) maximum power tracking algorithm, differential evolution algorithm, is suitable for the multi-peak conditions)

说明：  电力线载波通信的matlba模型，可以进行信号的调制和解调。(Power line carrier communication matlba model, can signal modulation and demodulation.)

用于计算位场数据的一阶或二阶水平方向导数，一般水平导数用于边界的识别。(The data used to calculate the potential field of a first-order or second-order horizontal directional derivative, the derivative of the general level of identification for border.)

30 Wind Power Penetration (DFIG-based Wind Farm)in IEEE 39 Bus Power System/MATLAB

说明：  本模型为单项你变模型，将直流电逆变成方波，分别采用四个脉冲发生器控制四个晶闸管，经滤波后得到输出结果。(This model is a single variable model, which transforms the direct current into square wave, uses four pulse generators to control four thyristors, and gets the output result after filtering.)

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. )

对地震数据进行逆F-K变换，得到的结果变回到时间域(The inverse F-K transform of seismic data is returned to the time domain.)

热电联供系统多能流建模，采用扩展牛顿—拉夫逊算法分解求解的方法进行计算。(The multi-energy flow model of cogeneration system is established, and the extended Newton-Raphson decomposition method is used to calculate the multi-energy flow.)

电流型两电平整流器simlink仿真，空间矢量调制，双闭环(SIMLINK simulation of current-source two-level converter)