ass2

本文研究了一种用于三相电压型并网逆变器的新型直接功率控制策略——预测直接功率控制（Predictive Direct Power Control，简称P-DPC）。重点讨论了P-DPC不同的电压矢量选择原则和电压矢量作用时间的处理方法，以降低低次电流谐波成分，获得更好的动、静态性能。(In this paper, a new direct method for three-phase voltage power grid-connected inverter control strategy- predictive direct power control (Predictive Direct Power Control, called P-DPC). Focused on the P-DPC different voltage vector selection principles and action time voltage vector processing method to reduce the low current harmonics components, better dynamic and static performance.)

一个简易的频率计，主要用检测在一定范围内的频率，当然频率过大会有误差(A simple frequency meter, mainly used for testing in a range of frequencies, of course, frequency of errors over the General Assembly)

MCS-51单片机软件仿真器(MCS-51 Software Simulator)

操作stc单片机内部eeprom程序实例(Operation stc microcontroller internal eeprom program instance)

一个AVR的TWI双机通讯(主机：mega16从机：mega8)(The AVR TWI a two-machine communication (host: mega16 Slave: mega8))

说明：  针对stm32裸机的先入先出队列，在串口接收缓存中有很大作用(First in first out queue for STM32 bare metal)

Wiegand 26/34转RS485、RS232信号转换模块（原理图+PCB+BOM）,输入韦根信号，转换为串口输出(Wiegand 26/34 to RS485, RS232 signal conversion module (schematic + PCB + BOM), input Wiegand signal, converted to serial output)

说明：  使用STM32f103编程实例工程，有ADC、DMA、USART、TIMER、GPIO等编程讲解(STM32f103 programming example project, ADC, DMA, USART, TIMER, GPIO programming explanation)

说明：  基于matlab/simulink永磁同步电机的模糊PID控制仿真模型，适用于永磁同步电机，仿真效果还可以(The fuzzy PID control simulation model based on MATLAB / Simulink is suitable for PMSM, and the simulation effect can also be)

MODBUS RTU 程序，可以移植到51单片机中，支持01 02 03 04 05 06功能(MODBUS RTU program, can be transplanted to 51 single-chip computer, supporting 01 02 03 04 05 06 function)