About 29 results
https://drivepatents.com/patents/994336 · 2 Jan 2013
An UPS system and a method of supplying power to a non-linear load are provided. The UPS system may include a bypass module (100) configured to supply a fundamental wave current to a non-linear load of the UPS system; and a power module (200) configured to...
https://drivepatents.com/patents/1000956 · 27 Jun 2012
The apparatus (400) for applying a torsional electromagnetic wave to a power line (300) is electrically isolated from a power source unit providing power to a load. The apparatus can be used regardless of the power supply system such as a single-phase elec...
Control method for converting power, and electronic power converter adapted to carry out said method
https://drivepatents.com/patents/1002507 · 9 May 2012
Control method for converting power in which a DC voltage is converted into alternating voltage, a first alternating voltage (AC1) and a second alternating voltage (AC2) being obtained by means of a first inverter (1) and a second inverter (2) respectively...
https://drivepatents.com/patents/1003667 · 4 Apr 2012
The power filter module has an input unit that receives reference load currents and phase voltages of three-phase supply network (1) corresponding to a non-linear load (2). A transformation unit transforms the load currents and phase voltages in alpha-beta...
https://drivepatents.com/patents/1006886 · 21 Dec 2011
Disclosed is a method for the improvement of the line quality in a system, in which a common feeding (1), via at least one distribution transformer (3), feeds at least two non-linear loads (11) drawing non-sinusoidal currents from the common feeding (1), w...
https://drivepatents.com/patents/1008092 · 2 Nov 2011
A system and method for managing power uses a power meter that is electronically connected to a first point on a multiphase power distribution system to measure power information at that point. It determines harmonic distortion and true power factor correc...
https://drivepatents.com/patents/1008266 · 26 Oct 2011
A power supply device adapted for supplying electrical power to a load, comprises a first electrical generator (201) adapted for providing a first output current (301) having a first phase angle; at least a second electrical generator (202) adapted for pro...
https://drivepatents.com/patents/1009747 · 31 Aug 2011
A method of controlling the grid-side current of a single-phase grid-connected converter having an LCL filter connected between the output of the converter and the grid, the method comprising the steps of measuring a grid voltage (½ S ) and at least one s...
https://drivepatents.com/patents/1014687 · 23 Mar 2011
A method for determining a fault in a power filter of a wind turbine generator, the method including the steps of: calculating a reactive power consumed by the power filter; and comparing the calculated reactive power to a predefined threshold reactive pow...
https://drivepatents.com/patents/1070581 · 25 Jan 2006
EMCfilter, for connection between a supply network and a electric-operated appliance to reduce conduction noise between said supply network and said appliance, comprising virtual shunt nodes inductively coupled to the power line. Thisdisposition allows the...