Class / Patent application number | Description | Number of patent applications / Date published |
307078000 | Generator sources | 15 |
20080203823 | Arrangement for Converting Mechanical Energy Into Electrical Energy - The invention relates to an arrangement for converting mechanical energy into electrical energy comprising a piezo-electric auxiliary generator producing an auxiliary voltage and a main generator which is coupled mechanically with the auxiliary generator and producing the electrical energy. | 08-28-2008 |
20100084922 | Three-Level Inverter - The present invention provides a three-level inverter including first and second direct voltage generators connected in series, each between a common center point and first and second end points, and first and second switching arms. Each of the first and second switching arms are connected between a respective one of the first and second end points and an output point and include at least one IGBT transistor. The IGBT transistors of the first and second switching arms are in series between the first and second end points. Each of the IGBT transistors includes an antiparallel-connected diode. The three-level inverter also includes a third switching arm which includes two IGBT transistors connected head-to-tail. Each head to tail transistor includes an antiparallel-connected diode. | 04-08-2010 |
20100090535 | SERIES CONNECTION APPARATUS FOR GENERATORS - In an apparatus for series-connecting at least two engine generators driven by an internal engine and each generates and outputs alternating current through single-phase two-wire output terminals, there are equipped with a magnetic coupler such as transformer that can magnetically couple the single-phase two-wire output terminals of the generators with the primary side and the secondary side, and a connector that can connect one of the single-phase two-wire output terminals of one of the generators and one of the single-phase two-wire output terminals of other of the generators. With this, single-phase three-wire output terminals are formed by the single-phase two-wire output terminals of the generators using the connector as a neutral line, without a communication line. | 04-15-2010 |
20110031815 | FUSE FOR DISCONNECTING AN INVERTER FROM A PHOTOVOLTAIC GENERATOR - A photovoltaic system includes an inverter, a photovoltaic generator with a plurality of serially connected photovoltaic modules, said photovoltaic generator connected to the inverter by an electrical supply line, a controllable fuse interconnected in the electrical supply line between the inverter and the photovoltaic generator and having a signal input, and a voltage-dependent resistor connected between the signal input of the controllable fuse and the electrical supply line and generating a control signal which triggers the controllable fuse responsive to the control signal and interrupts the electrical supply line. The controllable fuse can be used to disconnect the electrical connection of the photovoltaic system to the inverter when a switch short-circuiting one or more modules of the photovoltaic generator malfunctions. The arrangement permits operation of photovoltaic system at an operating voltage of close to 1000 V, thereby allowing use of thinner cables. | 02-10-2011 |
20110115299 | High Voltage Array Converter - A direct current to pulse amplitude modulated (“PAM”) current converter, denominated a “PAMCC”, is connected to an individual source of direct current. The PAMCC receives direct current and provides pulse amplitude modulated current at its output. An array of PAMCCs constructed in accordance with the present invention form a distributed multiphase inverter whose combined output is the demodulated sum of the current pulse amplitude modulated by each PAMCC. The array is configured as a series of stages, wherein the power sources within each stage are in parallel. The series of stages provides for a high voltage AC or DC output. In some embodiments a weak power source is compensated for by adjusting the voltage or the current of the weak power source. | 05-19-2011 |
20130328404 | VOLTAGE CONVERSION APPARATUS, POWER GENERATION SYSTEM, AND VOLTAGE CONVERSION METHOD - A voltage conversion apparatus converts a voltage of an electricity generator. The voltage conversion apparatus includes a maximum power tracking portion that is adapted to output a voltage which is output by the electricity generator to an external device at a predetermined ratio such that an operation point of the electricity generator tracks an optimal operation point at which power of the electricity generator reaches a maximum level, and a voltage output portion that is adapted to output a voltage which is output by the electricity generator to the external device when the maximum power tracking portion is not being operated normally. | 12-12-2013 |
20140049116 | INFORMATION PROCESSING APPARATUS AND METHOD - An information processing apparatus includes: a plurality of electric power generating elements; detection means for determining whether each of the plurality of electric power generating elements has an electromotive force equal to or higher than a predetermined value; determination means determining an input operation performed by a user by identifying an electric power generating element having an electromotive force below the predetermined value when at least one of the plurality of electric power generating elements is determined as having an electromotive force below the predetermined value according to the detection means; processing means carrying out a process associate with the input operation determined by the determination means; and bypass means which is provided in parallel with the electric power generating elements and through which a current flows when the electric power generating elements have an electromotive force below the predetermined value. | 02-20-2014 |
20140054969 | Photo-Voltaic Maximum Power Point Trackers - A maximum power point tracking (MPPT) device is provided that includes a converter, having a switched mode topology, where the switched mode topology includes a boost topology that establishes a variable transfer ratio between a variable input voltage and a variable output voltage of the converter, where the switched mode topology changes according to a power load on a power generator. The MPPT device further includes a control section, where the control section maximizes an output power of the power generator by controlling the variable transfer ratio, where the MPPT device optimizes an electrical operating point, of the power generator. | 02-27-2014 |
20150035371 | APPARATUS AND METHOD FOR VOLTAGE AND CURRENT BALANCING IN GENERATION OF OUTPUT POWER IN POWER GENERATION SYSTEMS - An apparatus for voltage balancing parallel arranged direct current (DC) voltage source strings in a power generation system includes a string voltage balancing circuit having reverse blocking switches to control a current flow and an output voltage of the DC voltage source strings. Capacitors are connected to a corresponding reverse blocking switch and in series with a corresponding one of the plurality of DC voltage source strings to construct a voltage difference for a corresponding one of the plurality DC voltage source strings. The string voltage balancing circuit adjusts an output voltage of the DC voltage source strings by controlling a current flowing in the plurality of DC voltage source strings to adjust a voltage constructed across corresponding ones of the capacitors to balance the output voltage for the DC voltage source strings to be substantially the same output voltage. Current balancing using differential power processing is also provided. | 02-05-2015 |
20150364918 | SYSTEM AND METHOD OF OPTIMIZING LOAD CURRENT IN A STRING OF SOLAR PANELS - A system and method for optimizing load current in a string of solar panels. A string of solar panels includes a microprocessor coupled to the string of solar panels. The system includes a first DC-to-DC converter comprising input terminals coupled to a load and output terminals coupled to each solar panel in the string of solar panels. The first DC-to-DC converter is operable to supply a compensatory power for compensating a drop in the peak current arising due to shading of one or more solar panels. Moreover, the system includes a second DC-to-DC converter coupled to the first DC-to-DC converter. The second DC-to-DC converter is operable as one of a voltage adder and a voltage subtractor to generate a compensatory voltage for compensating a drop in the load current arising due to panel mismatch among the string of solar panels. | 12-17-2015 |
20160013642 | APPARATUS AND SYSTEM FOR COUPLING POWER ELECTRONICS TO A PHOTOVOLTAIC MODULE | 01-14-2016 |
20160105028 | DEVICE AND METHOD FOR OPTIMIZATION OF POWER HARVESTED FROM SOLAR PANELS - A device for optimizing the electric power produced by direct current electric power generators, specifically photovoltaic panels, can be interposed between the generators of a string and its inverter and it includes a DC/DC conversion module suitable to implement an algorithm of MPPT, bypass means and a reactive energy compensation module. By measuring the voltage and current at input and output of the device a suitable algorithm activates and manages the above modules to extract from the panels the maximum amount of energy. | 04-14-2016 |
20160172861 | POWER CONVERSION APPARATUS, METHOD FOR POWER MANAGEMENT, AND POWER CONVERSION SYSTEM | 06-16-2016 |
20160181799 | DC POWER GENERATION SYSTEM AND PROTECTION METHOD FOR DC POWER GENERATION SYSTEM | 06-23-2016 |
20190148947 | SYSTEM AND DEVICE FOR EXPORTING POWER, AND METHOD OF CONFIGURING THEREOF | 05-16-2019 |