Journal ArticleDOI
A novel approach to minimize line-current harmonics in interfacing power electronics equipment with 3-phase utility systems
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TLDR
In this paper, a novel approach is presented to achieve nearly sinusoidal line current rectification of three-phase utility voltages by DC link current modulation, where only two transistor switches are required and a regulated DC voltage is provided at the output to simplify the design of the rest of the power electronics equipment.Abstract:
A novel approach is presented to achieve nearly sinusoidal line current rectification of three-phase utility voltages by DC link current modulation. Significant benefits of this approach are: only two transistor switches are required; a regulated DC voltage is provided at the output, thus simplifying the design of the rest of the power electronics equipment; the output DC voltage, which can be quite large, is automatically shared equally by two series-connected capacitors; and the usual disadvantages of passive filters are avoided. This approach can be applied to most of the power electronics equipment with three-phase utility input, as well as to interface generation using renewable energy resources such as wind and solar power. >read more
Citations
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Journal ArticleDOI
DC Link Active Power Filter for Three-Phase Diode Rectifier
TL;DR: The proposed dc link APF, which is composed of two series-connected bidirectional boost converters, intends to eliminate the input current harmonics and exhibits better total harmonic distortion of the ac line current when compared with the traditional ac side shunt APF.
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A Novel Three-Phase PFC Rectifier Using a Harmonic Current Injection Method
Jun-ichi Itoh,I. Ashida +1 more
TL;DR: In this article, a three-phase power factor correction (PFC) rectifier using a harmonics current injection method is proposed, which is more suitable than a conventional six-arm PWM rectifier.
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A Three-Phase Delta Switch Rectifier for Use in Modern Aircraft
TL;DR: It is shown that the three-phase -switch rectifier (comprising three -connected bidirectional switches) is well suited for this application and a novel PWM current controller modulation concept is presented, where all three phases are controlled simultaneously.
Proceedings ArticleDOI
Three-phase grid-connected inverters interface for alternative energy sources with unified constant-frequency integration control
Chongming Qiao,K.M. Smedley +1 more
TL;DR: Based on one-cycle control, a unified constant-frequency integration controller (UCI) is proposed for the dual-buck inverter, comprised of an integrator with reset, along with some linear and logic components.
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Fuzzy logic control of an active power line conditioner
Phumin Kirawanich,R.M. O'Connell +1 more
TL;DR: In this paper, a switch-mode active power line conditioner (APLC) that uses fuzzy logic to control the semiconductor switches is described, and a rule-based piecewise-linear fuzzy proportional-integral controller (FPIC) provides the appropriate switching pattern of the APLC to generate the actual compensation current.
References
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Update of harmonic standard IEEE-519: IEEE Recommended Practices and Requirements for Harmonic Control in Electric Power Systems
C.K. Duffey,R.P. Stratford +1 more
TL;DR: In this article, the authors present the changes in IEEE STD 519-1981, titled IEEE Guide for Harmonic Control and Reactive Compensation of Static Power Converters, that are to be made in 1988 as the result of a two-year review.
Journal ArticleDOI
Harmonic reduction in multiplex convertors by triple-frequency current injection
TL;DR: In this paper, the authors describe an investigation into a new method of eliminating these current harmonics at the source, this being a more fundamental method than merely suppressing their consequences, and an explanation of the fundamental action is presented, together with an analysis of the effects of triplefrequency current injection upon the harmonics generated by duplex convertor equipment.
Proceedings ArticleDOI
A digitally controlled AC to DC power conditioner that draws sinusoidal input current
C. P. Henze,N. Mohan +1 more
TL;DR: In this paper, an ac to dc power conditioner, which draws sinusoidal input current, is described and analyzed, and two control loops are used: an inner quantized-gain current program loop uses variable hysteresis to improve noise immunity, and a digital proportional-integral control provides output voltage regulation by adjusting the gain of the program loop.
Journal ArticleDOI
Generalised method of harmonic reduction in a.c.-d.c. convertors by harmonic current injection
TL;DR: In this paper, a general theory for a new method of current harmonic reduction in a.c.-d.c. convertors is described. And the principle of the method is to modify the current waveforms on the transformer by injecting harmonic currents at a particular frequency.
Proceedings ArticleDOI
A novel approach to minimize line-current harmonics in interfacing renewable energy sources with 3-phase utility systems
TL;DR: In this article, an approach to interfacing renewable energy sources such as photovoltaic, wind-electric, and small hydroplants with three-phase utility systems is presented.
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