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风光互补发电系统的知识，最大功率跟踪控制方法的介绍和研究(the content on wind and solar hybrid power generation system and the introduce about the maximum power point tracking)

用于基本的机械领域的飞轮建模分析，熟悉apdl的基本建模技巧(for modling the flywheel by using the apdl)

求取谐波频率，记算出各次谐波的幅值，有效值(The harmonic frequency is calculated, and the amplitude and effective value of each harmonic are calculated)

abaqus焊接高斯热源子程序for文件，能运行的(ABAQUS welding Gauss heat source subroutine for file, able to run)

国际电工委员会TC57指定了《变电站通信网络和系统》系列标准，简称IEC61850(International Electrotechnical Commission TC57 specify a substation communication network and system series of standards, referred to IEC61850)

说明：  可利用wigb对地震数据进行地震剖面的绘制，以便后续处理(Seismic data can be plotted by wigb for subsequent processing.)

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.)

example for wavelet analysis using pscad.

说明：  一个10自由度齿轮传动系统动力学模型，通过调用ode45进行求解，考虑了轴承刚度和阻尼。(one 10-dof dynamic model of the gear transmission system with its analysis process)

说明：  线路自动重合闸，三相和单项短路后，又重新恢复正常。(After three-phase and single short circuit, the line will return to normal again.)