three

说明：  fdmpi是用于并行环境的地震正演软件，可以做三维正演模拟(fdmpi environment for parallel seismic forward software, can do three-dimensional forward modeling)

说明：  单相锁相环的几种策略，matlab仿真模型验证(Several strategy models of single phase phase-locked loop, MATALB simulation)

说明：  用于新型空调平行流换热器的matlab程序设计(Matlab programming for new heat exchangers)

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)

基于PSCAD的IEEE39节点测试系统，可实现电磁暂态仿真、机电暂态仿真以及小信号稳定性仿真分析等。通过E-TRAN将PSS/E数据转换为PSCAD模型，模型包含有E-TRAN的元件库等。(IEEE New England 39-bus test system based on PSCAD/EMTDC. The model can be used in electromagnetic transient simulations, electromechanical transient simulations, and small-signal stability similations. The model is developed by using E-TRAN to transform PSS/E data to PSCAD/EMTDC model.)

模拟发送GOOSE SV SNTP等，是智能变电站应用开发的实用工具，详细的说明在压缩包里边，压缩包里包含三个压缩包，分别是集成测试工具、协议安装包、协议安装说明等。(Analog transmission GOOSE SV SNTP, are intelligent application development utility substation, detailed instructions inside the archive, compressed package includes three compressed, respectively, integrated test tools, protocol package, installation instructions and other agreements)

说明：  10kv SVG采用H桥级联，外环无功发生为电网电压控制模式，采用阻抗跌落电网电压(10kV SVG adopts H-bridge cascade, the reactive power of the outer ring is generated in the grid voltage control mode, and the impedance drop grid voltage is adopted)

单机无穷大系统的暂态稳定分析，附m文件和word使用说明(Transient machine infinite system stability analysis, attached files, and word instructions for use m)

地震剖面显示,主要用于石油地震勘探中地震剖面的显示，可以显示波形、变面积和变密度剖面(Seismic data display，mostly used for seismic data processing,it can display waveform, variable area and variable density)

单相光伏阵列并网过程的应用与分析包括动态过程(Single-phase photovoltaic array)