Patent
Filter arrangement for a converter circuit
Henniger W,Povh D,Schraudolph M +2 more
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TLDR
In this paper, an improved filtering arrangement for a converter circuit in which a highpass filter, tuned to have a cutoff frequency which is less than the lowest harmonic to be filtered is provided instead of the customary plurality of filters tuned to individual harmonic currents.Abstract:
An improved filtering arrangement for a converter circuit in which a highpass filter, tuned to have a cutoff frequency which is less than the lowest harmonic to be filtered is provided instead of the customary plurality of filters tuned to individual harmonic currents. In a 12 pulse converter circuit, at least one highpass filter which is tuned to filter out harmonics starting with the fifth harmonic and which has a resonant frequency above the 11th harmonic is used.read more
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Patent
Power source system
TL;DR: In this paper, a power source system consisting of a converter for converting AC power on an AC bus into DC power, a damped filter connected between the AC bus and ground and including a capacitor and an inductor, a diode-rectifying circuit for taking out and rectifying fundamental and harmonic waves produced across the inductor in the damped filters, and a circuit for connecting a DC output circuit in the diode rectifying circuit in series with the output of the converter.
Patent
Active filter for power distribution system with selectable harmonic elimination
Colin Huggett,Gabor Kalman +1 more
TL;DR: A power distribution system includes an ac power source; a power bus connected to the ac power sources; a capacitor bank shunt-connected to the power bus; and an active filter shunt connected to power bus as mentioned in this paper.
Patent
Composite filter for suppressing harmonic frequencies on electric power transmission lines
TL;DR: In this article, a composite filter for the eleventh and thirteenth harmonics was proposed to eliminate undesirable harmonics so that they will not be transmitted over power lines where they can cause telephone interference and undesired heating of electrical equipment.
Patent
Circuit arrangement and method for the compensation of harmonic currents
TL;DR: In this paper, the compensation of harmonic currents in a network, including a wideband high-pass filter having a choke connected in parallel with a damping resistor and a capacitor connected in series therewith, and a harmonic converter connected to the highpass filter, is discussed.
Patent
Marine propulsion system with reduced on-board network distortion factor
Stefan Iden,Gustav Vaupel +1 more
TL;DR: In this article, a ship with electrical propulsion was used to reduce the distortion factor in the medium voltage network by means of connecting two power converters or groups of converters together such as to behave like a 24-pulse power converter to the network.
References
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Patent
D.c. to a.c. power converter
TL;DR: In this paper, a D.C. to A.A. converter is presented, in which the lower even harmonics are attenuated by a plurality of series resonant circuits, each connected between the collector and emitter.
Patent
Dc transmission device for superconductive cable
TL;DR: In this paper, a superconductive cable is coupled to an upper harmonic voltage converter via corresponding voltage dividers, each voltage divider comprises a smoothing inductor, having a low resistance to direct current, coupled to the corresponding converter and a capacitor and an inductor connected to a point at ground potential.