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    • 29. 发明授权
    • DC voltage balance control for three-level NPC power converters with even-order harmonic elimination scheme
    • 具有偶次谐波消除方案的三电平NPC电源转换器的直流电压平衡控制
    • US07495938B2
    • 2009-02-24
    • US11354597
    • 2006-02-14
    • Bin WuSteven C. RizzoNavid R. ZargariCongwei LiuWeixing Feng
    • Bin WuSteven C. RizzoNavid R. ZargariCongwei LiuWeixing Feng
    • H02M1/12H02M7/521
    • H02M7/487H02M2007/53876
    • Three-level inverter and rectifier power conversion systems and space vector modulation (SVM) controls having even-order harmonic elimination for neutral voltage balancing with a predefined vector switching sequences for half-wave symmetry in open loop system operation. The vector sequence listings for each SVM diagram segment includes switching state entries individually indicating one of three possible switching state levels positive (P), zero (0), or negative (N) for each of three or more switching groups of the power conversion system, with listings for each pair of first and second diametrically opposite diagram segments include symmetrically opposite switching states, with positive levels in the entries of the listing for the first segment corresponding to negative levels in the entries of the listing for the second segment and vice versa.
    • 三电平逆变器和整流器电力转换系统和空间矢量调制(SVM)控制,具有用于中性电压平衡的偶次谐波消除,并具有用于开环系统操作中的半波对称的预定向量切换序列。 每个SVM图段的矢量序列列表包括分别指示功率转换系统的三个或更多个开关组中的每一个的三个可能切换状态电平正(P),零(0)或负(N)中的一个的切换状态条目 ,每对第一和第二完全相反的图段的列表包括对称相反的切换状态,对于第一段的列表的条目中的正电平对应于第二段的列表的条目中的负电平,反之亦然 。