摘要:
A hybrid power system for an aircraft. The hybrid power system comprises a high-voltage DC (HVDC) bus and a generator-motor system configured to (1) selectively receive electric power from the HVDC bus to assist in providing propulsion and (2) provide electric power to the HVDC bus during regulated power extraction. An LPS generator/motor is coupled with an LPS shaft of an engine. An HPS generator/motor is coupled with an HPS shaft of the engine. A first AC/DC converter is connected to the LPS generator/motor and the HVDC bus. A second AC/DC converter is connected to the HPS generator/motor, the first AC/DC converter, and the HVDC bus. An electric motor is connected to the HVDC bus and configured to provide propulsion and/or electric power. Further, AC and DC distribution systems are connected to the HVDC bus. A control system is configured to selectively control connections to the HVDC bus.
摘要:
A system and method for providing power to a vehicle is disclosed. The system can include a plurality of parallel module converter modules (“modules”) each capable of supplying a predetermined electrical load. The plurality of parallel module converter modules can be networked to form a parallel module converter (“converter”) for prioritizing and allocating each electrical load to one or more parallel module converter modules. Each module can include an internal protection controller and a logic controller. The individual modules can provide power to various loads in the vehicle either alone, or in concert with other modules. The system can enable fewer power controllers to be used, saving weight and time. The controllers in the system can also be utilized at a higher level reducing unnecessary redundancy.
摘要:
An electric drive system including an impedance balancing noise filtering circuit is disclosed. The electric drive system includes a direct current (DC) power source configured to output DC power to an output port and an inverter configured to convert the DC power output by the DC power source into alternating current (AC) power that is provided to an input port of an AC load. The impedance balancing noise filtering circuit includes an impedance bridge electrically intermediate the output port of the DC power source and the input port of the AC load. The impedance balancing noise filtering circuit includes different sets of passive components that are positioned on both the DC-side and the AC-side of the inverter. These sets of passive components are configured to facilitate impedance balancing that reduces common-mode (CM) electromagnetic interference (EMI) emission at the output port of the DC power source.
摘要:
An electrical power system for regenerative loads may include a DC bus and an electrical actuator load, where back-driving the electrical actuator load generates regenerative electrical energy, and where the electrical actuator load is configured to transmit the regenerative electrical energy to the DC bus. The system may also include at least one additional load, where at least a portion of the regenerative electrical energy is transmitted to the at least one additional load.
摘要:
Provided is a low-weight, high-efficiency inductor design for use with or in electrical power equipment, such as inverters. A toroidal power inductor includes a support structure comprising an outer shell, an inner shell, and one or more coolant channels formed therebetween, a plurality of conductors wrapped around and supported by an exterior surface of the outer shell, and an interior cavity substantially enclosed by the inner shell of the toroidal support structure. The plurality of conductors are configured to provide an inductance for the toroidal power inductor, and the one or more coolant channels are distributed beneath the exterior surface of the outer shell to cool the plurality of conductors. An air-core power inductor may implement the conductors using high-temperature superconducting (HTS) tapes cooled by cryogenic fluid flowing within the coolant channels.
摘要:
A method and apparatus for establishing a validated stable design for a stable electrical power system. An initial design for an electrical power system is established. The initial design for the electrical power system satisfies design requirements. The initial design for the electrical power system is simulated for a plurality of simulated operating conditions for the electrical power system to generate simulation data. Stability parameter requirements for a stable design for the electrical power system are established from the simulation data. A hardware implementation of the stable design for the electrical power system is tested to generate hardware testing data. The stable design for the electrical power system is validated using the hardware testing data to establish a validated stable design for the electrical power system.
摘要:
A method and apparatus for providing regulated direct current power for a direct current load on an aircraft. A regulated transformer rectifier unit on an aircraft comprises a plurality of converter modules connected in parallel between an input and an output. Each converter module in the plurality of converter modules comprises a transformer rectifier unit. The plurality of converter modules are controlled by a controller to provide regulated direct current power at the output from alternating current power provided at the input from an alternating current power source on the aircraft.
摘要:
A synchronous brushless machine having a single exciter field stator winding. The single exciter field stator winding is energized by a high frequency alternating current to provide a single excitation field to magnetically couple with the exciter field armature winding in both the starter mode and the generator mode. With a higher excitation frequency relative to the main armature current frequency, a steady main field voltage can be achieved which improves stability control while in the starter mode. In one or more configurations, the single exciter field stator winding is driven by a H-bridge converter.
摘要:
A method for real time power control over a plurality of motor controllers by at least one processor on a computer system may include determining a power load demand from a first set of motors, selecting a combination of motor controllers to match the power load demand, assigning a first set of system-wide priorities, configuring a power switching network to connect the first set of motors to the motor controllers, receiving from a control unit a power request for a motor, determining a priority designation for that motor, assigning a second set of system-wide priorities, determining a second power load demand from a second set of motors, wherein the second plurality of active motors comprises the first plurality of active motors and the first motor, selecting a second combination of motor controllers necessary to match the second power load demand, and configuring the power switching network in accordance with the second set of system-wide priorities.
摘要:
A synchronous brushless machine having a single exciter field stator winding. The single exciter field stator winding is energized by a high frequency alternating current to provide a single excitation field to magnetically couple with the exciter field armature winding in both the starter mode and the generator mode. With a higher excitation frequency relative to the main armature current frequency, a steady main field voltage can be achieved which improves stability control while in the starter mode. In one or more configurations, the single exciter field stator winding is driven by a H-bridge converter.