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guideline design PCB layout to reduce noise

给出了双馈风力发电机的原理和一种有效的控制方法介绍，对于双馈风机的学习很有帮助。(DFIG given principles and introduce an effective control method for DFIG very helpful.)

三相电压型逆变器的建模、设计，IEEE，讲解非常细致深入，非常有帮助！(Three-phase voltage source inverter modeling, design, IEEE, explaining in great detail in depth, very helpful!)

为了更好地进行谐波和无功功率的补偿与控制，叶FBD(Fryze一Buchholz一DPenbrock)法的定 义进行了完善，并给出了补偿电流检测的直接法和间接法，在三相电力系统中对FBD间接法进行 了推广研究，利用参考电压进行投影变换，不仅可以检测出功率电流和零功率电流，还可以检测出 基波有功电流、基波无功电流、谐波电流以及任意次谐波电流等，大大拓展了FBD法的应用范围和领域。MATI一AB仿真和实验结果表明了所定义和推广的电流检测方法的正确性和有效性。 (In order to improve the performance of active power filter(APF) harmonic current detection method, a harmonic current detection based on FBD(Fryze-Buchholz-Dpenbrock) algorithm was proposed. Reference voltage was generated by phase locked loop(PLL), and load current was projected to reference voltage, and then the active power fundamental current, reactive power fundamental current, harmonic current, fundamental negative sequence current, any harmonic current and so on can be detected accurately by using low-pass filter(LPF), and in the case of distorted voltage, the method was also applicable. The simulation results verify the fast dynamic speed, high detection accuracy, simple implement and good project value of the proposed algorithm. MATLAB simulation results confirm the feasibility and validity of the method.)

说明：  Robot Distance Meter (Motor DC) / c / protues

very good programs,I hope all members can have a look and learn somthing from it !

说明：  ADVANCE OF STATCOM RO USE KORI PARIBO AT DISTRIBUTION SIDE RE

有关参加全国大学生电子设计竞赛培训的一些情况介绍(Some related to take part in the national undergraduate electronic design contest training was introduced )

针对DVB-T标准ETSI EN 300 744 V1.5.1,设计了可用于DVB-T接收整机的多速率DDC模块,并在FPGA中仿真实现.在复用数字振荡混频模块的基础上,根据输入信号的不同带宽(6M/8MHz)选择不同的抽取滤波器组完成抽取因子为3或4的多速率处理任务,利用两级半带滤波器(HBF)级联完成4倍抽取滤波,单级奈奎斯特滤波器完成3倍抽取滤波. (For the DVB-T standard ETSI EN 300 744 V1.5.1, designed for DVB-T receiver machine multi-rate DDC module, and the simulation in the FPGA implementation. Numerical oscillation in the complex mixer module, based on the input signals of different bandwidths (6M/8MHz) choose a different group of complete decimation filter extracted factor 3 or 4 of the multi-rate processing tasks, using two half-band filter (HBF) cascade to complete four times decimation filter, single-stage Chennai Nyquist filter to complete three times the decimation filtering.)

Proteus 仿真软件在单片机设计中的应用(摘 要 单片机应用技术所涉及到的实验实践环节比较多，而且硬件投入比较大。在具体的工程实践中，如果因为方案有误而进 行相应的开发设计，会浪费较多的时间和经费。Proteus 仿真软件很好的解决了这些问题，他可以象Protel 一样画好硬件原理图 与KEIL 编程软件结合进行编程仿真调试。)