Class / Patent application number | Description | Number of patent applications / Date published |
307047000 | Dynamoelectric-type source | 10 |
20080252143 | Method and Device For Injecting Reactive Current During a Mains Supply Voltage Dip - The invention relates to a method and device for injecting current during a mains supply voltage dip. The inventive method consists in permanently monitoring the magnitude and phase of the mains supply voltage and, upon detection of a voltage dip, injecting reactive current in the affected main supply phase(s) in a manner that can vary over the duration of the voltage dip, at very short intervals, proportionally to the magnitude of the dip, thereby absorbing the necessary active current. The device comprises a voltage measurement switch, a transformer (low voltage/medium voltage), a DC/AC inverter, a capacitor, a voltage dip detection circuit, and a control circuit. | 10-16-2008 |
20080272653 | Power Source Apparatus and Control Method of the Power Source Apparatus - The present invention provides a solar cell that can be utilized as a stable electric power source for cloudy weather. An output voltage V | 11-06-2008 |
20100109437 | Battery pack disconnection method for a hybrid vehicle - A control methodology for an engine-driven electric machine of a hybrid vehicle electrical system for enabling continued operation of the vehicle electrical system under failure mode conditions that require disconnection of the battery pack from the electrical system. At the onset of a failure mode condition requiring disconnection of the battery pack, the electric machine is operated as a generator and controlled in accordance with a first mode of operation such that its output substantially matches the instant electrical load requirements of the vehicle without supplying charging current to the battery pack. When the battery pack current falls below a near-zero threshold, a relay is activated to disconnect the battery pack from the electrical system, and the electric machine is then controlled in accordance with a second mode of operation for maintaining the operating voltage of the electrical system at a specified value. | 05-06-2010 |
20100171366 | TRANSIENT ENERGY SYSTEMS AND METHODS FOR USE OF THE SAME - This disclosure relates to transient energy systems for supplying power to a load substantially instantaneously on demand. Transient energy systems may include a flywheel coupled the rotor of an induction motor generator. One embodiment of the disclosure refers to systems and methods for reducing loads on a bearing in a transient energy system. In another embodiment, the disclosure refers to an induction motor generator that is optimized for high power transient power generation, yet low power motor operation. Yet another embodiment of the disclosure refers to using a flywheel as a drag pump to cool components of a transient energy system. In yet another embodiment, a slip control scheme is discussed for regulating a DC bus. In yet a further embodiment of the disclosure a method is provided for reducing unnecessary turbine starts by making turbine start a function of the rotational velocity of a flywheel. | 07-08-2010 |
20100231045 | Photovoltaic Power Plant Output - A photovoltaic power system can include a photovoltaic array, an inverter, and a battery. | 09-16-2010 |
20110140524 | MULTIPLE BI-DIRECTIONAL INPUT/OUTPUT POWER CONTROL SYSTEM - A multiple bi-directional input/output power control system includes a network of functional blocks housed in a single enclosure, providing DC power to one or more DC loads, and providing control and internal pathways, sharing one or more AC and/or DC power inputs. The system feeds back AC power from the DC power source into an AC input connection, and the fed-back AC power is shared by other AC loads. The system operates at least one alternative source of DC in a dynamic manner, allowing maximization of power generating capability at respective specific operating conditions of the moment. Power isolation may be handled by an AC isolation block right at a power input. Therefore all other blocks within a multi-function power control unit (MFPCU) are isolated from AC ground. | 06-16-2011 |
20130187464 | System and Method for Portable Solar Array Deployment - A deployable portable solar system is provided. The portable solar system provides power for industrial use situations. The portable solar system contains solar cells, one or more charge controllers, one or more battery banks, DC to AC inverters, and a disconnect. Optionally, the solar system contains a backup AC generator, one or more transfer switches, a backup DC generator, a utility line connection, one or more transformers, and a variable frequency drive. | 07-25-2013 |
20130320763 | DUAL GENERATOR SYSTEM - A dual generator system includes a main generator and an auxiliary generator. The main generator generates at least a first phase main output and a second phase main output. The auxiliary generator generates at least a first phase auxiliary output and a second phase auxiliary output, wherein the first phase auxiliary output is combined with the first phase main output to generate a first phase main output. An auxiliary generator control unit (AGCU) monitors the first phase combined output and the second phase combined output and in response independently regulates the first phase auxiliary output and the second phase auxiliary output. | 12-05-2013 |
20140265580 | INERTIAL ENERGY GENERATOR FOR SUPPLYING POWER TO A DOWNHOLE TOOL - A downhole power supply is provided that includes an energy storage adapted to operate at high temperatures, and a rotary inertial energy generator to capture the shock energy and vibrational energy of downhole movement of the drill string. The energy storage may include at least one ultracapacitor. | 09-18-2014 |
20140306532 | Linear Alternator - A linear alternator to supply the electrical utility needs of homes and small businesses comprises a radial arrangement of five cylinders around a common crankshaft. Mechanical input power is applied to the crankshaft for conversion to electrical output power. Each of the five radial cylinders is in itself a single linear alternator in which four sets of equally spaced shuttle magnets are arranged head-to-toe and separated by spacers and insulators. The shuttle magnets are mounted as an assembly on a rod independently driven by the crankshaft such that each of five rods can correspondingly move back and forth inside four matching sets of equally spaced pickup coils. Alternating currents from each of the twenty total pickup coils are individually rectified, filtered, and regulated to charge banks of batteries or ultra-capacitors. Solid-state inverters can be connected to the batteries or ultra-capacitors to produce utility grade AC power, or DC power outputs can be tapped directly. | 10-16-2014 |