seisrectime[1]

分别对速度、磁场两个分量进行独立控制。通过控制转子磁链，以转子磁通定向，然后分解定子电流而获得转矩和磁场两个分量，经坐标变换，实现正交或解耦控制(The velocity and magnetic field components are controlled independently. By controlling the rotor flux, the rotor flux is oriented, and then the stator current is decomposed to obtain two components of the torque and magnetic field. Orthogonal or decoupling control is realized by coordinate transformation.)

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：  PSCAD可变风场接配电网模型，内含详细模型参数说明，简单易懂，参考价值高，非常适合初学者学习，可运行(PSCAD variable wind field connected to the distribution network model, including detailed model parameters, easy to understand, high reference value, very suitable for beginners to learn, can run)

simulink光伏并网程序用于光照强度、温度变化情况下最大功率点跟踪及其并网。(the photovoltaic power grid connection generation system with solar irradiation change, and the maximum power point tracking is adopted.)

无功补偿装置链式三角形接法STATCOM的探究(study on universal STATCOM)

说明：  双馈风力发电机模型，可实现多种情况下的暂态仿真。(Model simulation of doubly fed wind turbine)

《电力系统稳态分析》第三版，中国电力出版社，书上P95页，例3-4。经过计算机C语言编程，运用牛顿拉夫逊法，把简单的电力系统潮流进行计算。(load calculation)

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.)

通过matlab中的simulink对基于svpwm的三相异步电机矢量控制系统进行仿真。(The vector control system of three-phase asynchronous motor based on SVPWM is simulated by Simulink in MATLAB.)

非常详细的14自由度车辆动力学模型，用于进行横向/纵向动力学参数预测(14DOF vehicle dynamics model)