摘要
论文分析了三电平的拓扑结构及其SVPWM的简化算法,将传统两电平逆变器的电压空间矢量控制算法应用于三电平逆变器,减少了算法的运算量。同时将混合空间矢量调制引入三电平变频器,即通过调整各矢量的换向序列,在不同的区域选择不同的换向序列可以减少波形脉动,减少电流的谐波含量,提高控制精度。
Abstract： The topology, principle and SVPWM of three -level inverter are discussed in this paper. The traditional two - level SVPWM algorithm is applied to a three - level inverter, which can reduce the computational complexity of the algorithm. Hybrid SVPWM, which subdivides the sector through the change of the sequences of vectors, is applied to three - level inverter. Experiment results indicate that this method can decreases the fluctuation of waveform, reduces the harmonic component of current and improves the control accuracy.
出处
《煤炭工程》
北大核心
2010年第6期98-100,共3页
Coal Engineering
