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US20120200164 Power Conversion Apparatus and Electric Vehicle  
A power conversion apparatus capable of improving the impedance characteristics between each of two power modules and each of a plurality of capacitor cells, the power conversion apparatus...
US20130147264 THREE PHASE INVERTER DRIVER  
A system and method of use of a three-phase inverter driver is disclosed. In some exemplary embodiments three single-phase inverters are connected to the three-phase AC input of electric vehicle...
US20120049634 POWER CONVERSION USING DC AND AC CURRENT SHARING TO PRODUCE AN AC DISTRIBUTION OUTPUT  
Examples provide DC current sharing at a first stage and AC current sharing at a second stage to provide an AC power distribution output.
US20150137607 SWITCHED CAPACITOR DC-DC CONVERTER BASED DISTRIBUTED MAXIMUM POWER POINT TRACKING OF PARTIALLY SHADED PHOTOVOLTAIC ARRAYS  
A method and system for implementing DMPP tracking of partially shaded/uniformly illuminated photovoltaic arrays using switched capacitor DC-DC converter is disclosed. Here, a dedicated SC...
US20120153730 INTERLEAVED LLC CONVERTER EMPLOYING ACTIVE BALANCING  
An interleaved LLC converter, a method of operating an LLC converter and a power supply are disclosed herein. In one embodiment, the LLC converter includes: (1) a plurality of LLC power channels,...
US20120001491 Device and Method for Generating Alternating Current  
A solar power plant includes at least one photovoltaic module for generating power to be fed in a multi-phase grid. At least one inverter is provided for converting a direct voltage generated by...
US20110140536 CURRENT BYPASS FOR DISTRIBUTED POWER HARVESTING SYSTEMS USING DC POWER SOURCES  
A converter circuit providing multiple current bypass routes between the output leads to provide reliability in a series connection of several converters. If the converter malfunctions due to...
US20130234523 METHOD AND APPARATUS PROVIDING POINT OF INTERCONNECTION CONTROL FOR POWER PLANTS  
A method and apparatus to control power output of a power plant. A control module includes a plurality of controllers for different power parameters of the power plant and a master controller. The...
US20140253027 POWER RECEIVER AND CHARGING SYSTEM  
According to an embodiment, there is provided a power receiver including: a first rectifying circuit, a second rectifying circuit, a connecting part and a controller. The first rectifying circuit...
US20100134076 REACTIVE POWER REGULATION AND VOLTAGE SUPPORT FOR RENEWABLE ENERGY PLANTS  
Systems and methods are provided for reactive power regulation and voltage support for renewable energy plants. In one embodiment, a system and method are provided for coordinating voltage and...
US20120119586 Reconfigurable Microgrid Direct Current Interface  
Technologies are described herein for synchronizing multiple direct current (“DC”) voltages provided by multiple power sources. Multiple input voltages are received from multiple power sources. A...
US20140091631 DROOP COMPENSATION USING CURRENT FEEDBACK  
A system includes a boost converter configured to amplify input voltage received from one or more power sources into output voltage. The system also includes a current sensor configured to sense a...
US20080150368 CONFIGURABLE POWER SUPPLY INTEGRATED CIRCUIT  
A power integrated circuit includes, in part, a multitude of controllers, a multitude of pulse-width generators, a multitude of output stages and a configuration matrix. Each controller is adapted...
US20090160259 Distributed Energy Conversion Systems  
A distributed energy conversion system may include one or more DC power sources and two or more inverters to convert DC power from the power sources to AC power. The AC power from the two or more...
US20090085405 POWER CONVERSION DEVICE  
A power conversion device including sub-inverters, each connected in series with respective phase of a three-phase main inverter including a smoothing capacitor, which is fed from a power supply...
US20130026844 PHOTOVOLTAIC GENERATION SYSTEM, POWER CONVERSION DEVICE, AND COLLECTOR BOX  
A photovoltaic generation system includes: a solar cell array that includes a plurality of solar cell modules; a collector portion that collects power from the solar cell array; a power control...
US20080157594 Electric power generation system with multiple engines driven by a common prime mover  
An apparatus includes a vehicular electric power generation system comprising a variable speed internal combustion engine, a first variable speed electric power generator driven by the engine, a...
US20100277002 POWER CONVERSION SYSTEMS  
In a general aspect, a power conversion system includes a power converter, a transformer, and a voltage adjustment device. The power converter is configured to receive a variable DC power...
US20150214735 SOURCE TO PROVIDE A REDUNDANT OUTPUT TO A CONVERTER  
Examples disclose a system with a first source including a first output to provide input power to a first converter and a second output to provide input power to a second converter. The second...
US20120043823 Switching Circuits For Extracting Power From An Electric Power Source And Associated Methods  
A switching circuit for extracting power from an electric power source includes (1) an input port for electrically coupling to the electric power source, (2) an output port for electrically...
US20140117770 POWER CONVERTER  
A multi-source power converter is proposed to permit bidirectional DC to AC conversion from n (n≧2 and nεN) DC voltage sources to an AC load with a reduced number of switches, and DC to DC...
US20090174262 POWER SUPPLY AND CONTROLLER CIRCUITS  
A power supply system includes multiple power converter phases. A controller (e.g., a processor device) monitors energy delivery for each of multiple power converter phases that supply energy to a...
US20140132075 High Voltage Energy Harvesting and Conversion Renewable Energy Utility Size Electric Power Systems and Visual Monitoring and Control Systems  
A renewable energy, utility-size electric power system is provided with a high voltage, renewable energy harvesting network connected by a direct current link to a centralized grid synchronized...
US20110089765 POWER CONVERTING APPARATUS  
A power converting apparatus includes a first inverter circuit including a high-voltage first DC voltage source and operated at a low frequency using Si IGBTs having a high withstand voltage...
US20140084695 SERIALLY CONNECTED MICRO-INVERTER SYSTEM HAVING CONCERTINA OUTPUT VOLTAGE CONTROL  
The present invention is directed towards a serially connected micro-inverter (SCMI) system comprising a plurality of power sources for producing DC power, a plurality of micro-inverters, where...
US20100253150 AC Power Systems for Renewable Electrical Energy  
Renewable electrical energy is provided with aspects and circuitry that can harvest maximum power from an alternative electrical energy source (1) such as a string of solar panels (11) for a power...
US20110089766 Apparatus for phase rotation for a three-phase AC circuit  
An apparatus for power conversion. In one embodiment, the apparatus comprises a plurality of AC power sources, wherein each AC power source in the plurality of AC power sources has a phase...
US20140139031 PASSIVE UNIPOLAR REFERENCING FOR NON-ISOLATED INVERTERS  
Systems and methods for referencing a photovoltaic array are disclosed. An exemplary method includes converting DC power with an inverter from a photovoltaic array to AC power at a line frequency...
US20140239726 METHOD AND APPARATUS FOR REACTIVE POWER CAPABLE INVERTERS  
A system, method, and apparatus for converting DC input power to AC output power, including a DC-AC inverter employing: a first feedback loop for determining a maximum power point (MPP) and...
US20140191582 Power Converter Circuit with AC Output and at Least One Transformer  
A power converter circuit includes a synchronization circuit that is configured to generate at least one synchronization signal. A series circuit includes a number of converter units configured to...
US20140139032 MODIFIED PERTURN AND OBSERVE OF TRANSCONDUCTANCE TRANSFER FOR MAXIMUM POWER POINT TRACKING IN PHOTOVOLTAIC SYSTEMS  
In one example, a method of operating a photovoltaic (PV) system substantially at a maximum power point is described. The PV system includes a PV module and an inverter coupled to the PV module....
US20130076152 3-PHASE HIGH POWER UPS  
According to one aspect, embodiments of the invention provide a UPS comprising a plurality of electrical buses, a first AC/DC converter coupled to the electrical buses and configured to convert a...
US20120104863 System and Method for Combining Electrical Power from Photovoltaic Sources  
A photovoltaic system with photovoltaic (PV) panels is described. Each of the PV panels has a corresponding inverter module. The inverter module includes a maximum power point tracker (MPPT) for...
US20130320771 Integrated Photovoltaic Panel Circuitry  
A photovoltaic module is presented, which may include a photovoltaic panel and a converter circuit having a primary input connected to the photovoltaic panel and a secondary output galvanically...
US20140375134 Switching Circuits For Extracting Power From An Electric Power Source And Associated Methods  
An electric power system includes N electric power sources and N switching circuits, where N is an integer greater than one. Each switching circuit includes an input port electrically coupled to a...
US20120043818 Switching Circuits For Extracting Power From An Electric Power Source And Associated Methods  
An electric power system includes N electric power sources and N switching circuits, where N in an integer greater than one. Each switching circuit includes an input port electrically coupled to a...
US20120274145 Circuit for Rendering Energy Storage Devices Parallelable  
A circuit for rendering an energy storage device parallelable comprised of an energy storage device connected to a power adapter that converts the potential of the energy storage device into a...
US20080284252 Control methods for the synchronization and phase shift of the pulse width modulation (PWM) strategy of power converters  
A method of controlling a plurality of power converters 1a, 1b and 1c can be used to interface to a supply network, ac busbar etc. Each power converter includes a network bridge 14 operating in...
US20100013299 DIESEL-ELECTRIC DRIVE SYSTEM  
A diesel-electric drive system having a generator mechanically connected to a diesel motor on the rotor side and linked to a voltage source (intermediate) inverter on the stator side. The voltage...
US20130200709 Techniques for Grid Coupling Photovoltaic Cells Using Ratiometric Voltage Conversion  
Techniques for electrical power transfer in photovoltaic systems are provided. In one aspect, a photovoltaic system includes an array of photovoltaic power producing elements (e.g., concentrator...
US20120319494 SECURE CONTROL MECHANISM FOR DISTRIBUTED PHOTOVOLTAIC SYSTEM  
A system for controlling photovoltaic electricity production equipment comprising photovoltaic modules each equipped with a DC/DC microconverter connected to a DC bus, a DC bus manager, and an...
US20110121647 SOLAR POWER DISTRIBUTION SYSTEM  
The present invention is directed toward a solar power system including an array of photovoltaic panels. The photovoltaic array may include a first module electrically coupled to an AC load and a...
US20140070619 METHOD AND APPARATUS FOR BIDIRECTIONAL POWER PRODUCTION IN A POWER MODULE  
Method and apparatus for generating power. In one embodiment the method comprises determining a value of a DC parameter pertaining to a DC power source providing DC power to an inverter; comparing...
US20120112551 INTELLIGENT POWER CONVERTER CONTROL FOR GRID INTEGRATION OF RENEWABLE ENERGIES  
Embodiments according to the present invention provide methods and a system for a control approach that effectively maintains the DC link voltage at a constant set value under variable system...
US20150035284 POWER CONVERSION SYSTEM AND METHOD  
An exemplary power conversion system includes a first power conversion module, a second power conversion module, and a controller. The first power conversion module includes a first source side...
US20100194203 HIGH TORQUE STARTER/GENERATOR WITH LOW INPUT VOLTAGE  
An apparatus includes a plurality of starter/generator subsystems connected in parallel to a voltage distribution bus and to an input power supply. Each of the subsystems includes a...
US20140175888 Power Converter Circuit with AC Output  
A power converter circuit includes a synchronization circuit configured to generate at least one synchronization signal. A series circuit includes a number of converter units configured to output...
US20120223583 PHOTOVOLTAIC ENERGY EXTRACTION WITH MULTILEVEL OUTPUT DC-DC SWITCHED CAPACITOR CONVERTERS  
Switched capacitor multilevel output DC-DC converters can be used as panel integrated modules in a solar maximum power point tracking system. The system can also include a central input...
US20150130284 High Efficiency Interleaved Solar Power Supply System  
A high efficiency solar power system combining photovoltaic sources of power (1) can be converted by a base phase DC-DC photovoltaic converter (6) and an altered phase DC-DC photovoltaic converter...
US20080238208 DC-DC switching cell modules for on-board power systems  
A DC-DC switching cell module includes a switch, a rectifier, an output filter coupled to the rectifier, and an input port for receiving an external PWM control signal from a controller. The...