摘要
介绍了以数字信号处理芯片TMS320F2808为控制核心,用以检测蓄电池性能的交流激励源设计思想和实现方法。电路设计中采用全桥电路与相应电力电子器件为基础,利用双极性等面积脉宽调制波的算法,产生不同频率的SPWM波,具有速度快、波形谐波小、变频方式灵活的优点。设计通过实验进行了应用和验证,取得了较好的效果,为蓄电池的在线检测和故障诊断提供了一种实用的方法。
The paper introduces the design idea and realization way of excitation source for storage battery performance testing,with the control of digital signal process TMS320F2808.With the principle of bipolar SPWM modulation,the design can obtain SPWM signal waves with different frequencies on the basis of the full bridge circuit and corresponding power electronic devices in circuit design.The design has the advantages of fast computation speed,low total harmonic distortion and can vary the frequency flexibly.This method is implemented and verified by experiment,and the effect is admirable.It provides a practical method of online fault detection and diagnosis for storage battery testing.
出处
《电测与仪表》
北大核心
2011年第5期75-78,共4页
Electrical Measurement & Instrumentation
关键词
激励源
全桥电路
SPWM
excitation source
full bridge circuit
SPWM
