41results about How to "Improve acceleration and deceleration performance" patented technology

The purpose of this invention is to simplify the train control by eliminating a switching section. In the alternating current feeding system, one sub-station of a plurality of sub-stations is provided with a first three-phase alternating current power source that has a first frequency; a transformer that is used for changing the three-phase alternating voltage from the first three-phase alternating current power source to a two-phase alternating voltage, and for connecting one of the one-phase output terminal of the two-phase output terminal to a single phase alternating current feeding electric wire; a first power converter that has an alternating current output terminal connected to M seat of the two-phase output terminal of the transformer; a second power converter that has an alternating current output terminal connected to T seat of the two-phase output terminal of the transformer; a direct current smoothing capacitor connected to a common direct current terminal of the first and second power converters; a compensation current control means for controlling a compensation current generated from the first and the second power converters; a second three-phase alternating current power source that has a second frequency; and a diode rectifier for converting the three-phase alternating current of the second three-phase alternating current power source to a direct current and feeding direct current power to the direct current smoothing capacitor.

An energy converting device having an eccentric rotor includes a fixed portion and an eccentric rotor. This fixed portion has a central axis, an outer frame, and several fixed coil portions. The eccentric rotor has a bearing, a rotatory shaft, an eccentric arm, an eccentric shaft portion, a supporting plate, an inner annular magnetic portion, and an outer annular magnetic portion. The inner magnetic portion and the outer magnetic portion are concentric and aligned with the eccentric shaft portion. The eccentric shaft portion is offset from the rotary shaft. When the rotary shaft of the eccentric rotor rotates, these fixed coil portions cut through the inner magnetic portion and the outer magnetic portion repeatedly, so magnetic flux passing through the coils alternates accordingly to generate electromotive force. Conversely, it can be used as an electric motor. In addition, it can be integrated with a cycloidal speed reducer to form a motor with speed reduction and torque augmentation capability. The integrated cycloidal motor is compact, does not need a shaft coupler to transmit power from a motor to the reducer, and therefore may operate more smoothly.

The purpose of the present invention is to provide a hybrid power system with two engines and three blades for a ship with composite energy storage, including a gas engine, a generator, an electric motor, a pod propeller, and a natural gas storage and supply device. The output of the gas engine is connected to the input of the gearbox, the input of the generator is connected to the output of the gearbox, the output of the gearbox is connected to the motor, the propeller is connected to the output of the motor, the pod propeller is connected to the ship power grid, and the power source is super Capacitors, fuel cells, generators and batteries. When the load of the system in the present invention changes, the energy can be stored or released rapidly, preventing the impact of too fast energy change on the power grid, improving the operating efficiency of gas engines, generators and motors, improving the utilization efficiency of fuel and reducing emissions, and improving the efficiency of ships. The dynamic response improves the application range of the system, and the fuel utilization rate has been further improved.