NDLI: An integrated three-phase voltage regulated current source inverter topology

Content Provider	IEEE Xplore Digital Library
Author	Espinoza, J. Joos, G. Ziogas, P.
Copyright Year	1993
Description	Author affiliation: Dept. of Electr. & Comput. Eng., Concordia Univ., Que., Canada (Espinoza, J.; Joos, G.; Ziogas, P.)
Abstract	PWM current source inverters (CSI's) are usually operated with a fixed pattern and fed from a thyristor rectifier controlled current source. Transient response of the output current is slow and input power factor is low. This paper proposes a symmetrical PWM CSI topology with a two loop control structure. A voltage regulated current source inverter ensures instantaneous output voltage control through on-line PWM current generation. The PWM rectifier maintains unity displacement power factor, thus improving the power factor. Furthermore, it maintains the DC link current to a value such that the inverter modulation index remains high at all times; this results in reduced voltage harmonic distortion at the output. The topology is particularly well suited for fast fluctuating loads. It also has regenerative capabilities, inherent short circuit protection and increased reliability. The paper describes the power circuit topology and the two control loop structure and presents controller design considerations and procedures. The complete topology is implemented on a 2 kVA unit and experimental results confirm theoretical and simulation results.
Starting Page	663
Ending Page	668
File Size	494620
Page Count	6
File Format	PDF
ISBN	0780312279
DOI	10.1109/ISIE.1993.268725
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1993-06-01
Publisher Place	Hungary
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Pulse width modulation inverters Pulse width modulation Reactive power Circuit topology Rectifiers Thyristors Transient response Voltage control Maintenance Harmonic distortion
Content Type	Text
Resource Type	Article

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