Patent application number | Description | Published |
20120303277 | WIND TURBINE AND METHOD FOR DETERMINING PARAMETERS OF WIND TURBINE - A wind turbine includes multiple blades, multiple Micro Inertial Measurement Units (MIMUs) mounted on each of the blades and sensing parameter signals of the blades, and a parameter processing unit receiving sensed parameter signals from the MIMUs and determining parameters of the blades according to the sensed parameter signals. | 11-29-2012 |
20140037448 | CONTROL SYSTEM AND METHOD FOR MITIGATING ROTOR IMBALANCE ON A WIND TURBINE - A wind turbine includes multiple blades, multiple Micro Inertial Measurement Units (MIMUs) for sensing parameter signals of the blades, and a control system. The control system includes a blade bending moment calculation unit, a blade bending moment error signal calculation unit, and a pitch angle compensation command calculation unit. The blade bending moment calculation unit is used for calculating blade bending moment values of the blades based at least on the sensed parameters. The blade bending moment error signal calculation unit is used for calculating blade bending moment error signals of the blades based on the calculated blade bending moment values of the blades and multiple blade bending moment commands. The pitch angle compensation command calculation unit is used for calculating pitch angle compensation commands of the blades based on the calculated blade bending moment error signals to adjust pitch angles of the blades respectively. | 02-06-2014 |
20140084679 | POWER SUPPLY MANAGEMENT APPARATUS AND METHOD THEREOF - An apparatus comprising an onboard energy storage device, an onboard power conversion device configured to be electrically coupled to an external power source for receiving electrical power therefrom, and at least one drive system electrically coupled to the onboard energy storage device and the onboard power conversion device, wherein the onboard energy storage device and the onboard power conversion device cooperatively provide electrical power for the at least one drive system. A vehicle and a method for managing power supply are also disclosed. | 03-27-2014 |
20140152225 | Electric Drive System and Energy Management Method - An electric drive system includes an energy storage system (ESS), a power conversion system, and an alternating current (AC) traction system. The ESS provides or receives electric power. The ESS includes a first energy storage unit and a second energy storage unit. The power conversion system is electrically coupled to the ESS for converting an input power to an output power. The AC traction system is electrically coupled to the power conversion system for converting the output power of the power conversion system to mechanical torques. The AC traction system includes a first AC drive device and a second AC drive device. An energy management system (EMS) is in electrical communication with the ESS, the AC traction system, and the power conversion system for providing control signals. | 06-05-2014 |
20140265942 | ELECTRIC VEHICLE WITH IMPROVED ELECTRIC DRIVE SYSTEM - An apparatus includes at least one energy source and a drive system coupled to the at least one energy source. The drive system converts electrical power received from the at least one energy source and provides converted electrical power for driving at least one load. The drive system includes a first converter, a second converter, and a first switch module coupled to outputs of the first and second converters. When the apparatus is operating under a first mode, the first switch module is switched to assume a first state to allow a first output electrical power provided from the first converter and a second output electrical power provided from the second converter to be combined for driving a first load with the combined output electrical power. | 09-18-2014 |
20140277884 | DRIVE SYSTEM AND METHOD FOR DRIVING A VEHICLE - A drive system includes a control unit and a traction device. The control unit is configured to receive a load variation signal indicating a vehicle load is to be or being changed and generate a traction torque in response to the load variation signal. The traction device is coupled to the control unit and configured to drive a vehicle according to the traction torque. | 09-18-2014 |
20150081152 | APPARATUS AND METHOD FOR ELECTRIC BRAKING - The present invention discloses an apparatus comprising an energy source, a first motor, a second motor and a control system. The first motor is configured to drive a first load and the second motor is configured to drive a second load. The control system is coupled to the energy source, the first and the second motors. The control system dumps the baking power generated by the first load at least partially on the first motor according to a first baking command. The control system dumps the baking power generated by the second load at least partially on the second motor, according to a second baking command. The present invention also discloses other varieties of apparatuses, vehicles, such as electric tractors, electric forklifts and relative methods, etc. | 03-19-2015 |
20150086362 | CONTROL SYSTEM AND METHOD FOR MITIGATING ROTOR IMBALANCE ON A WIND TURBINE - A wind turbine includes a rotor comprising multiple blades mounted on a hub, MIMUs mounted on each blade for sensing parameter signals thereof, and a control system. The control system includes a wind speed calculation unit, a wind shear calculation unit, a pitch angle compensation command calculation unit, and a pitch control unit. The wind speed calculation unit is used for calculating wind speeds at the blades based at least on the sensed parameter signals. The wind shear calculation unit is used for calculating a characteristic shear exponent based at least on the calculated wind speeds. The pitch angle compensation command calculation unit is used for calculating pitch angle compensation commands of the blades based at least on the calculated characteristic shear exponent. The pitch control unit is used for adjusting the pitch angles of the blades based on the calculated pitch angle compensation commands. | 03-26-2015 |