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A 3-D PWM control, H-bridge tri-level inverter for power quality compensation in three-phase four-wired systems
Mak P.-I.; Wong M.-C.; U S.-P.
2004-09-07
Conference NameIEEE International Symposium on Circuits and Systems
Source PublicationProceedings - IEEE International Symposium on Circuits and Systems
Volume5
Pages948-951
Conference Date23-26, MAY-2004
Conference PlaceVancouver, CANADA
Abstract

A three-dimensional pulse width modulation (3-D PWM) control, H-bridge tri-level inverter, acts as a power quality compensator for three-phase four-wired systems, is proposed. Such compensator is an alternative of diode-clamped inverter based one, which generally suffers from the DC-link voltage unbalance problem and possesses low expandability in very high-voltage and high-power applications. This paper based on the concepts of switching function and state-variable formulation to deduce the mathematical model of H-bridge tri-level inverter, with also an enhanced switching table that balances the average switching frequency of the switches. The compensation is accomplished through a sign cubical hysteresis control strategy, which controls the total 27 space vectors in 3-D aspect to inject the nearest negative amplitude of harmonics into the load currents to compensate both the harmonic and in-phase currents into the systems to reduce the peak-load power supply from the generator. System-level simulation results demonstrate the feasibility and performance of such compensator.

URLView the original
Indexed BySCI
Language英语
WOS Research AreaComputer Science ; Engineering
WOS SubjectComputer Science, Artificial Intelligence ; Engineering, Electrical & Electronic
WOS IDWOS:000223103900237
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Citation statistics
Document TypeConference paper
CollectionDEPARTMENT OF ELECTRICAL AND COMPUTER ENGINEERING
AffiliationUniv Macau, Fac Sci & Technol, Taipa, Macao, Peoples R China
First Author AffilicationUniversity of Macau
Recommended Citation
GB/T 7714
Mak P.-I.,Wong M.-C.,U S.-P.. A 3-D PWM control, H-bridge tri-level inverter for power quality compensation in three-phase four-wired systems[C],2004:948-951.
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