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DC voltage balance control for three-level NPC power converters with even-order harmonic elimination scheme
DC voltage balance control for three-level NPC power converters with even-order harmonic elimination scheme
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机译: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
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摘要
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.
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