一种铁路功率调节器的样机设计  

Software and Hardware Design of Electric Railway Power Quality Conditioner System

作　　者：孙娟[1] 罗安[1] 马伏军[1] 张久林[2] 

机构地区：[1]湖南大学电气与信息工程学院,湖南长沙410082 [2]重庆市电力公司检修分公司,重庆400015

出　　处：《电力电子技术》2011年第6期87-90,共4页Power Electronics

基　　金：国家"十一五"科技支撑计划项目(2009BAG12A09)~~

摘　　要：分析了铁路功率调节器(Railway Static Power Conditioner,简称RPC)的基本结构和补偿原理,提出一种RPC的样机设计方法。控制系统采用基于TMS320F2812的数字控制器,集成了DSP,SRAM,EEPROM,A/D,PWM等模块,硬件部分设计采样电路和硬件死区延时模块。控制器软件分为主程序和中断程序,实时检测负载电流并计算得到负序与谐波补偿参考量,采用双闭环策略控制直流侧电压和逆变器输出电流,内环电流采用多模递推PID控制算法,实现有功功率转移以及谐波和无功补偿。实验结果表明,在所设计的硬件模块和软件系统下,RPC具有良好的负序和谐波补偿性能。This paper analyzes the basic structure as well as compensation principles of railway static power condi-tioner,and proposes a model machine design method.The control system adopts digital controller based on TMS320F2812,which is integrated with DSP,SRAM,EEPROM,A/D,PWM modules and so on.In hardware section,it focuses on design of sampling circuit and dead-time delay module.Software of the controller is divided into two parts,the main program and interruption routines,which can detect load current in real-time and calculate negative se-quence and harmonic compensation reference volume.DC-side voltage and output current of inverter is controlled with dual-loop strategy,and the inner current adopts multi-recursive mode PID control algorithm to achieve active power transfer and harmonic and reactive compensation.Experimental results show that RPC has a good negative sequence and harmonic compensation performance under the designed hardware modules and software systems.

关 键 词：调节器 数字控制器 负序 谐波 

分 类 号：TP214[自动化与计算机技术—检测技术与自动化装置]