基于DSP的分布式电网动态电压恢复器模拟系统的研究  

Research of the distributed power system dynamic voltage restorer simulation based on DSP

作　　者：赵巧妮[1] 

机构地区：[1]湖南铁道职业技术学院,湖南株洲412001

出　　处：《电子设计工程》2016年第9期116-118,共3页Electronic Design Engineering

基　　金：湖南省教育厅科学研究项目(14C0754)

摘　　要：本文旨在通过设计一款分布式电网动态电压恢复器模拟系统装置,解决电力设备运行过程中电压暂降或中断情况下的动态电能安全问题。装置采用"直流-交流"及"交-直-交"双重结构,控制系统采用TMS320F28335为控制核心,采用规则采样法和DSP片内EPWM模块功能实现SPWM波,经过软硬的设计,经测试本装置在PFC环节,功率因数基本接近1;SPWM调制算法近似性引入的误差、直流侧电压波动、检测电路及AD转换器的误差小。开机自检、输入电压欠压及输出过流保护,在过流、欠压故障排除后能自动恢复。This paper aims to design a distributed grid simulation system dynamic voltage restorer means to solve the problem of dynamic energy security in case of equipment operating in the electricity voltage sag or interruption. Means the use of＆quot;DC-AC＆quot;and＆quot;AC-DC-AC＆quot;dual structure, control system uses TMS320F28335 to control core sampling method within the rules and DSP chip EPWM module functions to achieve SPWM wave, after hardware and software design, the test of the PFC link device, the power factor was close to 1; a small error SPWM modulation algorithm approximation introduced DC voltage fluctuation detection circuit and AD converter error. POST, input under-voltage and output over-current protection, over-current, under-voltage troubleshooting can automatically restore.

关 键 词：PFC 逆变 SPWM 锁相 DSP 

分 类 号：TN925[电子电信—通信与信息系统]