A transport climate control system is disclosed. The system includes a compressor, a motor-generator-rectifier machine, a belt drive connected to the motor-generator-rectifier machine and the compressor, at least one condenser fan, at least one evaporator fan, and a DC to DC converter. The motor-generator-rectifier machine connects to the at least one condenser fan, the at least one evaporator fan, and the DC to DC converter. The motor-generator-rectifier machine includes a motor, a low voltage generator connected to the motor, and a rectifier connected to the low voltage generator. The motor-generator-rectifier machine can provide a first low voltage DC power to the at least one condenser fan, the at least one evaporator fan, and the DC to DC converter. The DC to DC converter can convert the first low voltage DC power to a second low voltage DC power that is different from the first low voltage DC power.

The present invention relates to sinusoidal components representative of particular commands (V.sub.CMD) or values, or a combination thereof, superimposed on DC power lines (V.sub.DC) as a means of communication between the prosumers wherein the communication will be tailored to commands for microgrids.

A direct current power supply system includes N power supply devices, N triple-pole direct current switches, a positive bus, an M bus, and a negative bus. A positive input terminal of an i.sup.th triple-pole direct current switch is coupled to a first output terminal of an i.sup.th power supply device, an M input terminal of the i.sup.th triple-pole direct current switch is coupled to a second output terminal of the i.sup.th power supply device, a negative input terminal of the i.sup.th triple-pole direct current switch is coupled to a third output terminal of the i.sup.th power supply device, a positive output terminal of the i.sup.th triple-pole direct current switch is coupled to the positive bus, an M input terminal of the i.sup.th triple-pole direct current switch is coupled to the M bus, and a negative output terminal of the i.sup.th triple-pole direct current switch is coupled to the negative bus.

An intrinsically safe (IS) luminaire disposed in a hazardous environment provides visible light and serves as a primary, auxiliary, back-up, and/or charging source of IS DC power for external devices disposed in the hazardous environment, such as process control devices and equipment. The luminaire includes a power converter that converts received power into DC power, an IS barrier that converts the DC power into IS DC power native to or utilized by a recipient external device, and a power distribution port via which IS DC power is delivered to the external device. In some configurations, the luminaire monitors communicates statuses, alerts, and/or other information corresponding to delivering IS DC power to one or more external devices to a host and/or portable communication device. The luminaire may include multiple IS barriers of same and/or different IS ratings, and may dynamically control activation/deactivation of the IS barriers and/or usages thereof.

A method for controlling a power supply system 30 of a vehicle 10 that includes: a first step of permitting or prohibiting, based on a combination of normality and abnormality of the respective energy storage apparatuses 50, each of the energy storage apparatuses 50 to cut off supply of current such that the current cut-off device 53 of at least one of the energy storage apparatuses is brought into an energized state; and a second step of bringing the current cut-off device 53 into a cut-off state when a BMU 100 of the energy storage apparatus 50 that is permitted to cut off the current detects an abnormality of the energy storage apparatus 50 at a point of time that the cut-off of the supply of current is permitted, or when the BMU 100 detects an abnormality of the energy storage apparatus 50 after the cut-off of the supply of current is permitted.

A power integration system with motor drive and battery charging and discharging function includes a motor, a power integration circuit, and a battery. The motor includes multi-phase paths, and each path has an inductor. The power integration circuit includes an inverter and a charger. The inverter includes multi-phase bridge arms, each bridge arm has an upper switch and a lower switch, and each bridge is correspondingly coupled to each inductor of the motor. The charger a switch, the upper switch and the lower switch of at least one bridge arm of the shared inverter, and the inductor of the shared motor. The switch is coupled between any two bridge arms. The power integration circuit receives a DC power provided by a DC power apparatus, and the charger converts the DC power to charge the battery, and the battery provides power required to drive the motor through the inverter.

A power integration system with motor drive and battery charging and discharging function includes a motor, a power integration circuit, and a battery. The power integration circuit includes an inverter and a charger. The inverter includes multi-phase bridge arms, and each bridge arm has an upper switch and a lower switch. Each bridge arm is correspondingly coupled to each phase winding of the motor. The charger includes a charging unit having at least a switch, an inductor, or a diode and the upper switch and the lower switch of at least one bridge arm of the shared inverter. The power integration circuit receives a DC power provided by a DC power apparatus, and the charger converts the DC power to charge the battery. The battery provides the required power of driving the motor through the inverter.

A control device to control a first DC-DC converter and a second DC-DC converter that supply power to equipment, the control device comprising a processor configured to: determine whether or not a predetermined condition is satisfied; and in a case in which a predetermined condition is determined to be satisfied, perform control to switch which of the DC-DC converters is prioritized for power supply to the equipment.

A multifunctional emergency starting power for motor vehicles is provided, including a bracket (10), an accumulator (20) mounted on the bracket (10), a first interface (50) for charging the accumulator (20), and a second interface (30) for outputting an emergency starting voltage to a motor vehicle. The bracket (10) is also installed with a vacuum cleaner (70) and a controller (60) for controlling the operation of the vacuum cleaner and the charging of the accumulator. The accumulator is respectively connected to the vacuum cleaner and the controller and supplies an electrical energy thereto. The emergency starting power and the vacuuming function are integrated, and the battery of the emergency starting power is configured for powering the vacuum cleaner and the controller of the emergency starting power is configured for controlling the power charging and the vacuum cleaner work.

The disclosure provides an electric energy storage device which includes four energy units with a substantially same voltage value. Each energy unit is provided with a positive electrode and a negative electrode. The electric energy storage device comprises a socket with eight independently arranged electrode terminals that are connected with the four energy units. The disclosure also provides an electric tool system using the electric energy storage device. The electric tool is provided with plugs that may be connected with the four energy units in different states, allowing the electric energy storage device to output multiple voltages.