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Patent Searching and Data


Matches 401 - 450 out of 7,475

Document Document Title
WO/2015/085926A1
Providing is an AC voltage regulator that regulates the output AC voltage level regardless of the varying AC input voltage utilizing high frequency series inductors L3-L6 that only process a proportion of the total output power and using...  
WO/2015/086416A1
The invention relates to a cycloconverter (4) having a number of first converter groups (6), which in turn each have a number of line-commutated first power converters (7). The first power converters (7) are designed at least as bipolar ...  
WO/2015/078094A1
An AC-AC voltage transformation device, which is used for transforming the voltage of an AC power source (100) and supplying same to a load, and contains a first to a fourth diode (D1, D2, D3, D4), a transformer (10) and an electronic sw...  
WO/2015/080598A1
A push-pull inverter for an inductive power transmitter including a DC power supply that supplies power to a first and second branches; a resonant inductor connected between a first node on the first branch and a second node on the secon...  
WO/2015/078093A1
An AC-AC power source conversion device, comprising a rectifier circuit (10), an active power factor correction circuit (20), an automatic charge pumping circuit (30) and an inverter circuit (40), wherein the rectifier circuit is connect...  
WO/2015/010827A3
A module (30) for use in a voltage source converter comprises: first and second terminals (48,50) for connection to an electrical network; an energy storage device (52); at least one switching element, the or each switching element being...  
WO/2015/075019A1
There is provided a bi-directional AC/DC converter comprising a first AC terminal for connection to a first AC circuit terminal, a neutral line terminal for connection to a neutral AC circuit terminal, a common node, a first AC side acti...  
WO/2015/062865A1
A power system (100) for a floating vessel, in particular a drilling vessel, is provided. The power system has at least two AC transformer units (21, 22, 23) adapted to provide transformation of AC electric power, each AC transformer uni...  
WO/2015/062483A1
A bidirectional AC series voltage regulator that regulates an output AC voltage level regardless of the varying AC input voltage utilizing high frequency series inductors that only process a proportion of the total output power. The AC s...  
WO/2014/203282A3
A bi-directional AC/AC converter is designed to provide improved AC/AC power conversion along with reduced switching losses, reduced harmonic distortion and improved power factor. The converter is characterized by bi-directional switches...  
WO/2015/058538A1
A power source circuit comprising a rectifier (10), a first direct-current bus (40) and an inverter (20) which are connected in sequence, and also comprising a switch power source (30). The input end of the switch power source (30) is co...  
WO/2014/105771A3
A load control device to control current flow to an AC load (10) includes a circuit (20) having line-side switche (22, 24, 26)s and floating-neutral side switches (28, 30, 32), along with a controller (46) connected to the circuit that i...  
WO/2015/057405A1
A turbine-based energy generation system (100) includes an electric generator (102) and auxiliary load (112). A power system for the turbine-based energy generation system includes a main converter (106) and an auxiliary converter (110)....  
WO/2015/052497A1
An AC/AC boost converter comprising input terminals, output terminals, an inductor, a bridge arm comprising a pair of bi-directional switches, a capacitor and a control circuit for controlling the switches. The bridge arm and the capacit...  
WO/2015/043457A1
A power supply apparatus for a high-voltage direct-current electronic device replaces a high-voltage transformer with multiple cascaded medium-voltage transformers, and couples a power source at the ground potential to a high-potential e...  
WO/2015/043600A1
According to some aspects, a power conversion system for converting electrical power produced by a generator is provided. The power conversion system comprises at least one first power converter configured to convert alternating current ...  
WO/2015/043249A1
Disclosed are a method and system for regulating a contactless transformer; the method is applied to the regulating system comprising the contactless transformer and a detection device (2), the contactless transformer comprises a transmi...  
WO/2015/041111A1
Provided is a power conversion device that reduces the power capacity that is required of a power buffer circuit. A converter (3) performs full-wave rectification with respect to a single-phase voltage (Vin) and outputs a rectified volta...  
WO/2015/041638A1
Embodiments of a bypass system for a multi-cell power supply are provided. An aspect includes a plurality of power cells, each of the plurality of power cells comprising a respective bypass device comprising one or more contactors. Anoth...  
WO/2014/099897A3
An apparatus includes at least one external source terminal configured to be connected to at least one secondary terminal of a distribution transformer and at least one external load terminal configured to be connected to a load. The app...  
WO/2015/037455A1
A transformer device provided between a power source and a load, and equipped with a front-stage circuit and a rear-stage circuit, each of which has the function of alternately switching the polarity of an output with respect to an input...  
WO/2015/038995A1
A method and apparatus for line-cycle storage of a single-phase cycloconverter. The method includes receiving input power from an input port of the singe-phase cycloconverter and monitoring an AC output port of the single-phase cycloconv...  
WO/2015/032598A1
The invention relates to a device (1) and a method for controlling the stability of a local network (3). The local network (3) comprises a plurality of outgoing circuits (41, 42,..., 4M,), each having at least one load (5) and/or at leas...  
WO/2015/028663A1
The invention relates to a pump-storage power plant, in particular an electric unit comprising a converter (3), a rotating electric synchronous machine (4), and a charging unit (5), which has at least one transformer (6) and a switch (7)...  
WO/2015/029720A1
Provided is a transformer, which is a distributed constant transformer provided between an AC power source having a frequency (f) and a load having a resistance (R), comprising, with a wavelength of λ for the frequency (f): a first tran...  
WO/2015/029744A1
Provided is a transformer device provided between a power source and a load with a resistance value R, wherein, where n is a natural number of at least 4, provided is a two terminal pair circuit configured by mutually connecting n reacta...  
WO/2015/024583A1
The invention relates to a method for controlling a self-commutated converter (1) that is connected to further self-commutated converters (1) by means of its AC voltage connection via an inductive component (2) using a coupling point (3)...  
WO/2015/025133A1
Apparatus for regulating high power voltage supplies, comprising a voltage input, voltage regulating means arranged to receive the AC input voltage and output a regulated output voltage under control of a control means connected to the v...  
WO/2015/023809A1
Some embodiments provide a UPS 100 including a non-current commutated solid-state bypass switch 120. The bypass switch may include at least one transistor configured to control current to the load. Further embodiments provide a UPS inclu...  
WO/2015/022691A1
A power controller for controlling power supply to a load at medium voltage is disclosed. The power controller may include a switching module electrically connected between a medium voltage AC power supply and a load to switch on or to s...  
WO/2014/114755A3
The invention relates to a method for producing a digital signal (DS) from an analog signal (UA) produced by means of a frequency converter on the basis of a pulse-width modulation having a variable period duration, wherein values of the...  
WO/2015/015216A1
Embodiments of the present invention provide an apparatus for controlling a voltage provided to a load, comprising a transformer having primary and secondary windings in circuit between an AC electrical supply and a load, wherein the pri...  
WO/2015/016977A1
A battery module including a first positive terminal, a second positive terminal, a ground terminal, a power conversion circuit, and a power assembly. The power assembly includes a plurality of battery cells coupled in series and dispose...  
WO/2014/113228A3
Systems and methods for reducing current imbalance between parallel bridge circuits used in a power converter of a power generation system, such as a wind driven doubly fed induction generator (DFIG) system, are provided. The power conve...  
WO/2014/127090A3
A system and method for capturing current information for a power converter is disclosed. The current monitoring system includes a control system operably connected to a circuit having a plurality of semiconductor switches that are contr...  
WO/2014/140004A3
The invention relates to a charging device for an electric vehicle (1) that can be driven by means of an electrical energy store (2), the charging device comprising a charging interface (5) outside the electric vehicle (1), which chargin...  
WO/2014/209741A1
A system and method for controlling an adjustable speed drive (ASD) to decelerate an AC load during a generating mode of operation is disclosed. The ASD includes a capacitor and an inverter coupled to a DC link. A current sensor system i...  
WO/2014/210125A1
A printed circuit board power cell (100) having a printed circuit board (110) including a DC bus disposed within the printed circuit board. The printed circuit board power cell includes a plurality of capacitors (106) connected to the DC...  
WO/2014/198821A1
The invention relates to a converter unit (10; 10a) comprising at least one inverter (12; 12a) for supplying a direct voltage applied on the input side to at least one output-side load (14; 14a), comprising at least one braking chopper u...  
WO/2014/198371A1
The present invention relates generally to drive systems having at least one electric motor, which can be powered by means of power electronics that can be connected to a voltage source via a DC voltage circuit, and an energy storage app...  
WO/2014/031585A3
A system and method for performing diagnostics in a medium voltage drive. The system includes a power cell (405) and a bypass mechanism. The bypass mechanism is operably connected to(410) output terminals (T1,T2) of the power cell and co...  
WO/2014/196013A1
A power conversion device comprises: transformers (20n) each equipped with primary windings connected to input terminals (R, S, T) and secondary windings consisting of a plurality of single-phase open windings insulated from each other; ...  
WO/2014/187064A1
A power module for a medium and high-voltage frequency converter and a frequency converter comprising same. The power module has a three-phase alternating current input and a single-phase alternating current output, and comprises a circu...  
WO/2014/188219A1
A power adaptor which comprises an input for connection to an AC power supply, a resonant circuit (LCL) coupled to the input that provides an output suitable for driving a load (LCL), at least one half-bridge drive circuit (Ql, Q2) for p...  
WO/2014/120850A3
Apparatus and methods in accordance with this invention provide a multi-cell power supply for receiving power from a source and delivering power at an output terminal to a load. The multi-cell power supply includes a first power cell cou...  
WO/2014/152765A3
An improved interface for renewable energy systems is disclosed for interconnecting a plurality of power sources such as photovoltaic solar panels, windmills, standby generators and the like. The improved interface for renewable energy s...  
WO/2014/125445A3
An electric energy conversion device having a master electric energy conversion unit (2a) and a slave electric energy conversion unit (2b); and wherein the master conversion unit (2a) is synchronized with the slave conversion unit (2b).  
WO/2014/176739A1
A voltage adjusting power source, comprising: a controller (230), an adjustable voltage source group (210) and a switch group (220). The adjustable voltage source group comprises at least two adjustable voltage sources (211, 212 … 21N)...  
WO/2014/179365A1
Electrical power systems and methods using bidirectional power converters to provide, among other functions, uninterruptible power supplies for loads such as cell towers. The power-packet-switching power converter can be connected, for e...  
WO/2014/176036A1
A power supply, for a plasma cutter or a plasma arc welder, having a variable switching frequency and method of operating the power supply is generally disclosed. The power supply includes a switch for setting the switching frequency and...  

Matches 401 - 450 out of 7,475