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| Number | Title | Issue Date |
| 7884580 | Constant-power brushless DC motor and the generator thereby The present invention relates to a constant-power brushless DC motor and a generator using the same, and in particular, to a constant-power brushless DC motor and a generator using the same, which stably generates power upon load fluctuation. Since the stator is wou... | 02/08/2011 |
| 7342382 | Method of determining transition from starter to alternator function by monitoring battery voltage or current The present invention is directed to determining and controlling the appropriate moment at which a combined starter/alternator should transition from start-up mode to alternator/generator mode following an IC engine start-up sequence. The method relies on battery vo... | 03/11/2008 |
| 7292011 | Electrical protection of a generator controller A generator system includes a generator control for providing electrical power to a main generator. The main generator is mechanically coupled to an electrical power source that provides electrical power to the generator control during operation of the main generato... | 11/06/2007 |
| 7174731 | Rotational speed control system, rotatingly driving system, air blow system, clean bench, outdoor unit of air conditioner This invention relates to a rotational speed control system including a plurality of motor drivers for driving motors, and the object thereof is to drive a plurality of motors at the same rotational speed without depending on the number of motor drivers and without ... | 02/13/2007 |
| 6949902 | Controller of rotating electric machine for vehicle A controller of a rotating electric machine for a vehicle has a magnetic field electric current command arithmetic device for commanding a magnetic field electric current by the command of a torque and electric power command arithmetic device, an electric power conv... | 09/27/2005 |
| 6934468 | Brushless DC motor and circuit for controlling the same Disclosed is a multiphase brushless DC motor of a concentrated winding type having shunt connection, and a control circuit. The brushless DC motor includes a rotor made up of a permanent magnet with M number of poles, and a stator operating in K number of phases by ... | 08/23/2005 |
| 6933704 | Slip-inducing rotation starting exciter for turbine generator A dynamoelectric machine combining the functions of an exciter, a turning motor, and a starting motor for a turbine. The machine operates in a first mode where the slip between a first stator winding and a first armature winding is positive and thus the magnetic fie... | 08/23/2005 |
| 6781331 | Method and apparatus for regulating motor generator output A method and system of regulating an output voltage of a boiling water reactor nuclear reactor plant recirculation system motor generator are provided. The method includes sensing an alternator output voltage and transmitting an alternator output voltage signal to a... | 08/24/2004 |
| 6768277 | Gas turbine system and method for controlling the same In a gas turbine system having first power converter converting power system N AC voltage to DC voltage, second power converter converting the DC voltage into AC voltage, generator connected to second power converter's AC output and rotated by turbine and turbine co... | 07/27/2004 |
| 6710581 | Constant-power brushless DC motor A constant-power brushless DC motor is provided, including a stator which is wound in parallel by phases and polarities and configured of n multi-phases, a rotor having a predetermined number of polarities, which is required to concentrate magnetic flux on its area,... | 03/23/2004 |
| 6552515 | Engine speed controlled generator set having an inverter and direct current output smoothing capacitor The performance of a generator is improved in a higher range of the output by correcting a decrease in the average direct current voltage supplied to an inverter. An average calculator calculates an average of direct current voltage inputs to the inverter... | 04/22/2003 |
| 6490511 | Torque-based monitor in a hybrid electric vehicle A torque based monitor method, apparatus, and system, for a torque splitting hybrid electric vehicle (HEV) powertrain and regenerative brake 54 system. The preferred powertrain configuration includes an internal combustion engine 20, generator 32, and ele... | 12/03/2002 |
| 6429613 | Generation control device of hybrid electric vehicle A generation control device of a hybrid electric vehicle is able to satisfactorily generate power with an excellent responsiveness with respect to a high output requirement from a motor. If a charge level SOC sensed by a charge level sensing device is not... | 08/06/2002 |
| 6177738 | Isolated electrical system including asynchronous machine with prime mover and inverter/rectifier An electrical system for use in isolation, the electrical system comprising a main engine (14), such as a gas turbine or a diesel engine, a generator (13) driven by the main engine (14) for generating a first alternating voltage (19), a first rectifier un... | 01/23/2001 |
| 5804947 | Generator controller used in hybrid electric vehicle A generator controller used in hybrid electric vehicle. The battery current is sampled and accumulated for T seconds. The obtained accumulated value is used to determine the control target of the generated power. Since the generated power is controlled ac... | 09/08/1998 |
| 5654624 | Method of starting an asynchronous machine The invention relates to a method of starting an asynchronous machine irrespective of whether the rotor of the machine is rotating or not when the machine is supplied by an inverter provided with a separate moment and flux or moment and magnetizing curren... | 08/05/1997 |
| 5543703 | Generator motor for vehicles A vehicular generator motor performing generator operation and motor operation is disclosed. The generator motor comprises an AC-DC converter means and a switching means. The converter means is composed of a plurality of MOSFETs and connected between each... | 08/06/1996 |
| 5519276 | DC compound motor having an auxiliary generator which supplies power for shunt field winding excitation A DC compound motor of the type having a series winding and a shunt field winding includes an auxiliary generator driven by the motor for supplying power to the shunt field winding. The generator can be chosen, or a control circuit added, to control the c... | 05/21/1996 |
| 5504414 | Electric system for electric vehicle An electric system for an electric vehicle enabling a secondary battery to be charged easily without using a large capacity and bulky charging system. The system can maintain integrity of power on a distribution network during charging. When charging the ... | 04/02/1996 |
| 4806841 | Constant speed and frequency generating system An output frequency control circuit is mounted on the rotating shaft connecting a motor and generator. The motor-generator system includes exciter circuits, an input power factor control and an output voltage regulator. The input power factor control ensu... | 02/21/1989 |
| 4575671 | Methods and apparatus for synchronizing multiple motor driven generators Methods and apparatus are disclosed for synchronizing multiple AC motor driven synchronous generators to the voltage on a common output bus. In one method, the rotating motor is disconnected from its AC power source, the generator voltage is phase synchro... | 03/11/1986 |
