摘要:
A vehicle power system may include a gate driver configured to drive a traction gate and a generator gate corresponding to switches of a variable voltage controller such that the gates have alternating pulse width modulation ON periods. The gates may be driven in response to a throughput magnitude falling below a threshold. The gate driver may be further configured to drive the gates such that a duty cycle of one of the gates is zero in response to the throughput exceeding the threshold.
摘要:
A DC electrical generation system for an aircraft propelled by a turbine engine, such as a turbojet, includes at least one electrical energy storage capacity, at least one generator driven mechanically by a rotation shaft of the turbine engine and electrical connections between the electrical energy storage capacity, the generator and the aircraft equipment for powering the above-mentioned equipment with DC current, also including at least one alternative for supplying DC current to the equipment, which are autonomous in relation to any mechanical driving by a rotation shaft of the turbine engine, and a device that can cut-off power to the generator(s) and simultaneously activate the alternative current supply. The power cut-off device for triggering power cut-off and activating the alternative current supply is controlled by a control or operating parameter of the turbine engine. The alternative current supply is preferably formed by one or more supercapacitors.
摘要:
In one illustrative embodiment, a wind-driven charging system includes a wind-driven rotation device coupled to a rotatable shaft, and a plurality of electric generators disposed at different longitudinal locations along the rotatable shaft and each of the plurality of electric generators are rotationally driven simultaneously by the rotatable shaft. By having the electric generators disposed at different longitudinal locations, more electric generators may be simultaneously driven by a common shaft. In some instances, a controller may be configured to enable more of the electric generators to provide electrical current to recharge a battery when the speed of rotation of the rotatable shaft increases, and may disable more of the plurality of electric generators to not provide electrical current when the speed of rotation of the rotatable shaft decreases.
摘要:
An electric power system includes a plurality of combinations of one of electric loads, which transmit/receive electric power, and one of power converters which is connected to the one of the electric loads and performs power conversion operation according to a predetermined switching synchronization signal so that electric power is transmitted/received to/from the electric load, the combinations being connected to a predetermined intermediate point so as to be parallel to each other, and a power conversion control unit which controls operations of the power converters. The power conversion control unit variably sets switching phases of the power converters depending on operating conditions of the power converters.
摘要:
The invention relates to an electrical conversion and distribution system for an aircraft, the system comprising a synchronous starter-generator (ENG S/G) intended to be coupled to an aircraft engine, a rectifier (R) capable of transforming alternating voltage into direct voltage, an auxiliary synchronous starter-generator (AUX S/G) intended to be coupled to an auxiliary power group, a first, a second and a third power converter (CV1, CV2, CV3) capable of transforming direct voltage into alternating voltage or vice versa, and at least one battery (BATT).
摘要翻译:本发明涉及一种用于飞行器的电气转换和分配系统,该系统包括旨在耦合到飞机发动机的同步起动器 - 发电机(ENG S / G),能够将交流电压转换为直流电压的整流器 ,用于耦合到辅助电源组的辅助同步起动器 - 发电机(AUX S / G),能够将直流电压转换为交流电压或副变压器的第一,第二和第三功率转换器(CV1,CV2,CV3) 和至少一个电池(BATT)。
摘要:
An apparatus for the management of one or more power sources when connected to one or more batteries, in particular on a boat, comprises a first power source such as an engine alternator (11) connected to a first source charge manager (26) and a second power source such as a solar panel (13,14) connected to a second source charge manager (26). The first and second source charge managers (26) are connected to a rail (5) maintained over a predetermined range of voltage. The rail (5) is connected to a battery charge manager (33), which manager is connected to a battery such that the battery can be charged from at least one of the first and second power sources.
摘要:
A DC electrical generation system for an aircraft propelled by a turbine engine, such as a turbojet, includes at least one electrical energy storage capacity, at least one generator driven mechanically by a rotation shaft of the turbine engine and electrical connections between the electrical energy storage capacity, the generator and the aircraft equipment for powering the above-mentioned equipment with DC current, also including at least one alternative for supplying DC current to the equipment, which are autonomous in relation to any mechanical driving by a rotation shaft of the turbine engine, and a device that can cut-off power to the generator(s) and simultaneously activate the alternative current supply. The power cut-off device for triggering power cut-off and activating the alternative current supply is controlled by a control or operating parameter of the turbine engine. The alternative current supply is preferably formed by one or more supercapacitors.
摘要:
The present disclosure provides systems for storing electrical energy. A system for storing energy comprises a plurality of separable energy storage devices that are operatively connected in series or parallel. Each energy storage device of the plurality comprises a housing that includes a magnet that generates a magnetic field, an armature coil that rotates relative to the magnetic field upon user movement of the housing or the armature coil, and an energy storage unit electrically coupled to the armature coil and adapted to store electrical energy generated upon rotation of the armature coil in the magnetic field.
摘要:
In one illustrative embodiment, a wind-driven charging system includes a wind-driven rotation device coupled to a rotatable shaft, and a plurality of electric generators disposed at different longitudinal locations along the rotatable shaft and each of the plurality of electric generators are rotationally driven simultaneously by the rotatable shaft. By having the electric generators disposed at different longitudinal locations, more electric generators may be simultaneously driven by a common shaft. In some instances, a controller may be configured to enable more of the electric generators to provide electrical current to recharge a battery when the speed of rotation of the rotatable shaft increases, and may disable more of the plurality of electric generators to not provide electrical current when the speed of rotation of the rotatable shaft decreases.
摘要:
A hybrid hydraulic excavator includes: an engine; a generator motor; an electric storage device; a commanding system being configured to command at least activation of a service mode for maintenance and execution of a charge-release process for the electric storage device; a display being configured to provide at least information on the charge-release process for the electric storage device; and a display controller being configured to control displaying of the display. The display controller commands the display to display charge-release-failure information when the charge-release process is ongoing at the elapse of a predetermined duration of time since the activation of the service mode was commanded.