摘要
针对普通晶闸管变流装置谐波问题,通过对比6脉动和12脉动晶闸管变流装置,并考虑电机启动要求,本文介绍了6/12脉动双桥串联顺序控制方法。通过MATLAB仿真得到了该装置在典型触发角α下,输入电流、输出电流、输出电压波形FFT的分析结果。仿真表明:12脉动变流装置对电网危害比6脉动要小,且通过6/12脉动顺序控制策略可以提高功率因数。
Considering the problem of harmonics of thyristor converters,a new approach is paroposed, which is based on the sequential control of two serial connected bridges. The FFT results of the input current, output current and output voltage waveforms are obtained by MATLAB simulation. The results show that the 12 pulse thyristor converters would take less bad effect on the power system than 6 pulse＇s and the power factor is alos improved.
出处
《自动化技术与应用》
2007年第11期81-82,123,共3页
Techniques of Automation and Applications
关键词
变流装置
顺序控制
谐波
仿真
thyristor converter
sequence control
harmonic
simulation
