New three-level voltage source inverter with different 25 space voltage vectors

Mohamed H. Saied, M. Z. Mostafa, T. M. Abdel-Moneim, H. A. Yousef

نتاج البحث: Conference contribution

1 اقتباس (Scopus)

ملخص

This paper presents a new switching strategy controlling a new three-level voltage source inverter, resulting in different 25 space voltage-vectors. The new inverter combines some desirable features of two and three-level inverters. The proposed open-leg switching strategy (OLSS) intentionally opens one of the three inverter-legs per-time, in a pre-planned sequence. Thus, the number of allowed switching states becomes 64 compared to 27 originally proposed by other modulation strategies. For a wye-connected load operating at low modulation index (M<0.5 p.u.), the output phase-voltage becomes a seven-level, 12-step waveform, instead of the 6-step one. Thus, the total harmonic distortion is highly reduced. Three new conduction-modes are presented, each verifies a reduced common-mode-voltage time-variation (dv/dt), low third harmonic content, and reduced switching frequency harmonics. For higher modulation indexes, a forth conduction mode is presented, eliminating the low frequency harmonics in the neutral-point current, consequently reducing the dc-link capacitors sizes, and cost. Analytical models, computer simulation results, and experimental verification are presented.

اللغة الأصليةEnglish
عنوان منشور المضيف2006 2nd International Conference on Power Electronics Systems and Applications, ICPESA
الصفحات102-107
عدد الصفحات6
المعرِّفات الرقمية للأشياء
حالة النشرPublished - 2006
منشور خارجيًانعم
الحدث2006 2nd International Conference on Power Electronics Systems and Applications, ICPESA - Hong Kong, Hong Kong
المدة: نوفمبر ١٢ ٢٠٠٦نوفمبر ١٤ ٢٠٠٦

سلسلة المنشورات

الاسم2006 2nd International Conference on Power Electronics Systems and Applications, ICPESA

Other

Other2006 2nd International Conference on Power Electronics Systems and Applications, ICPESA
الدولة/الإقليمHong Kong
المدينةHong Kong
المدة١١/١٢/٠٦١١/١٤/٠٦

ASJC Scopus subject areas

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