【摘要】 介绍了静止同步补偿器的结构和运行原理，分析了三电平电压源逆变器在采用选择谐波消去调制方式下的运行特性，提出了当触发角发生偏差时描述谐波特性变化程度的灵敏度系数的概念，特别研究了在３个脉冲和５个脉冲的选择谐波消去调制方式下三电平电压源逆变器的谐波特性及其关于触发角误差的灵敏度系数。更多还原

【Abstract】 The structure and operation principle of the STATCOM are introduced. The characteristics of a three-level voltage source inverter using selective harmonics elimination modulation (SHEM) are analyzed. The harmonic sensitivity showing the variety of harmonic is put forward when the errors of firing angles occur. Finally, the harmonic distortion and its sensitivity of a three-level voltage source inverter using different SHEMs are studied in detail.更多还原