A system for the electric power supply of a vehicle, wherein the vehicle comprises multiple electricity users, comprises an energy accumulator and a DC/DC converter, wherein the energy accumulator comprises n strands each having at least one energy accumulator cell and the DC/DC converter comprises n input modules, wherein each time one strand of the energy accumulator and one input module of the DC/DC converter form a closed circuit, wherein n circuits are interconnected, and wherein each circuit is connected to the users.

A control method for a power source, including the following steps: detecting the electric power quality of multiple channels of inputs of a power source; in response to the electric power quality of the multiple channels of inputs being normal, acquiring and comparing the resistance of a relay when the power source is respectively working at each channel of input; in response to the resistance of the relay at each channel of input meeting a preset condition, acquiring the duration how long each power source is working at one channel of input among the multiple channels of inputs; and in response to the duration how long the power source is working at the channel of input in the multiple channels of inputs being greater than a threshold value, adjusting the power source to work at other channel of input.

An in-vehicle power supply system supplies electric power to a large electric power load and a small electric power load. The in-vehicle power supply system includes a first power supply unit to output electric power having a first voltage higher than a total power supply voltage required by the large and small electric power loads, zone management units to manage predetermined zones on the vehicle, a power supply trunk line unit connecting the first power supply unit and the zone management units and a step-down conversion unit disposed in a zone of one zone management unit of the zone management units and to convert the electric power having the first voltage into electric power having a second voltage lower than the first voltage. The power supply trunk line unit includes a high-voltage power supply line to distribute the electric power having the first voltage.

A hydrogen production power supply system is provided by the present disclosure, wherein two stage conversion modules are arranged between the power supplies, and each output end of the second stage conversion module is connected to a power supply end of each hydrogen production device, respectively, so that independent power supply is provided for each hydrogen production device, which eliminates the loss of gas production caused by the non-uniform load among the hydrogen production devices. In addition, being different from the conventional technology, it is unnecessary for the hydrogen production power supply system to adapt the voltage by using a customized power frequency converter in the present disclosure. Therefore, the path loss issue can be avoided.

A power distribution system is provided that ensures that a car is able to operate safely in an autonomous mode. The system includes multiple power rails, including a pair of safety critical power rails. Associated with each safety critical power rail is a safety switch, vehicle sensors (e.g., vehicle location and obstacle sensors), vehicle actuators (e.g., braking and steering actuators) and an autonomous control unit. If a fault is detected during vehicle initialization or general operation, the safety switch which detected the fault opens and that particular power rail is decoupled from the general purpose power rail as well as the remaining safety critical power rail. The remaining safety critical power rail is then able to provide power to a sufficient number of sensors, actuators and controllers to allow the car to safely and autonomously complete an emergency stop on the side of the road.

A low voltage signal line and a high voltage signal line are connected to a power distribution ECU which controls charging and discharging of an assembled battery. A base portion and a shield member are interposed between the low voltage signal line and the high voltage signal line having different applied voltages. These signal lines and the base are connected by a connecting member.

A photovoltaic system includes an inverter, a controller, and at least two converters. An input terminal of each of the at least two converters are connected to a corresponding photovoltaic module, and output terminals of the at least two converters are connected in series and connected to an input terminal of the inverter. The controller is configured to set a voltage limiting value of at least one of the at least two converters, so that an output voltage of the at least one converter is less than or equal to the voltage limiting value when the converter works in a voltage limiting mode. The voltage limiting value of the at least one converter is proportional to an open circuit voltage of the photovoltaic module connected to an input terminal of the converter. Open circuit voltages of different photovoltaic modules vary with different parameters or models of the photovoltaic modules.

A software-defined power management and distribution system for spacecraft and other remote systems, which maximizes adjustability of the electrical power systems thereof using software, and without having to change the associated hardware is described. Embodiments of the present apparatus are remotely adjustable, thereby enabling more rapid configuration of spacecrafts during construction as well as reconfiguration thereof while in orbit.

A power management system for managing power of a climate control unit (CCU) configured to be used with at least one of an electric vehicle, a trailer, or a transport container and at least partially powered by the electric vehicle is disclosed. The system includes a power distribution system that includes a power input, a power distributor electrically connected to the power input, a fault detecting and isolating circuit electrically connected to the power input, and a connection point for receiving the CCU. The connection point is electrically connected to the fault detecting and isolating circuit. A power controller is electrically connected to the power distribution system. The power controller includes a processor and a memory.

A direct current power system. The direct current power system includes a direct current bus system, a solar power system, an energy storage system and a wind power system. The solar power system is configured to supply a first direct current power. The energy storage system has an input electrically coupled to the solar power system and is configured to supply a second direct current power at 380 volts to the direct current bus system. The wind power system includes is electrically coupled to the energy storage system and is configured to supply a third direct current power.