三相双BUCK并网逆变器SVPWM调制研究

孙维广

孙维广.三相双BUCK并网逆变器SVPWM调制研究[J].电测与仪表,2015,52(8):.
sun Wei-guang.Study of SVPWM Method for Three-Phase Dual-Buck Grid-connected Inverter[J].Electrical Measurement & Instrumentation,2015,52(8):.

三相双BUCK并网逆变器SVPWM调制研究

Study of SVPWM Method for Three-Phase Dual-Buck Grid-connected Inverter

DOI：

中文关键词: 双Buck逆变器空间矢量脉宽调制单周控制

英文关键词:dual-buck inverter, space vector pulse width modulation, one-cycle control

基金项目:

作者中文名	作者英文名	单位
孙维广	sun Wei-guang	河海大学

摘要点击次数: 1977

中文摘要:

双Buck拓扑克服了传统桥式同一桥臂直通的问题，将其用于三相并网逆变器里，可以避免死区信号的加入，带来并网电流谐波含量的增加。针对该电路拓扑本文提出了空间矢量脉宽调制和单周期控制相结合的方法，在一个周期里，将三相交流母线电压分成6个区间，在每个子区间使用单周期控制。三相双Buck并网逆变器采用该控制开关频率固定，具有效率高和可靠性高的优点。通过Saber仿真验证了该系统控制策略的正确性。最后制作了一台10kW样机，结果表明该逆变器具有良好的稳态性能，能以高功率因数向电网供电。

英文摘要:

The dual-buck topology overcomes the straight-through problem of the traditional bridge topology in the same bridge. It is used in three-phase grid-connected inverter can avoid the increase of current harmonics caused by the dead-time. So this paper presents a new method of combining space-vector algorithm with one-cycle control, the AC voltage of three-phase bus bar is divided into six regions which are all in one cycle and a one-cycle control model is built for each regions. The three-phase dual-buck grid-connected inverter used this control method can possesses fixed switching frequency, high efficiency and high reliability. The validities of control method have been proved by Saber. At last, making a 10kW prototype whose result shows that the inverter possessed satisfied steady state performance and can transmit electric power under high power factor.

查看全文查看/发表评论下载PDF阅读器

关闭