823 results about "Power distribution unit" patented technology

The invention provides a split type direct current charging multi-split group charging and group control control system, and belongs to the technical field of split type direct current charging piles. The split type direct current charging system comprising a main control cabinet, a power distribution unit, a charging pile terminal and other hardware architectures is constructed; a voltage monitoring unit, a current sensor module, a harmonic filter and other multi-dimensional sensor networks are integrated to acquire power grid state data in real time, and a sliding time window method is used to carry out segmented analysis on the data to extract power grid characteristic parameters; establishing a multi-objective optimization model comprising a power balance equation and a power grid stability equation to calculate an optimal power distribution matrix, adopting a neural network to realize intelligent distribution and dynamic balance adjustment of the power of each charging pile terminal, and starting an emergency power redistribution mechanism to ensure stable operation of the system when the power grid is detected to be abnormal. The technical problem of unbalanced power distribution of the multi-pile charging system caused by power grid voltage fluctuation and harmonic pollution is solved.

A refuse vehicle includes a cab, a refuse compartment, a chassis, a high voltage power distribution unit (HVPDU) including a battery, a plurality of cables and a manual service disconnect. The manual service disconnect is accessed via a through hole of a wheel well of the refuse vehicle. The refuse vehicle further includes a platform removably coupled to the chassis and the HVPDU and configured to enclose the high voltage power distribution unit.

The invention relates to a high-sensitivity anti-interference satellite navigation signal receiving system and method based on Rydberg atoms, and the system comprises a signal detection unit which is used for receiving a satellite navigation direct signal and outputting an electric signal; the data receiving unit is used for processing the electric signal output by the signal detection unit and outputting a navigation message; the power distribution unit is used for providing power for the signal detection unit and the data receiving unit; the signal detection unit comprises an atomic antenna which comprises four miniature atomic air chambers and is used for receiving satellite navigation direct signals from different directions; the light path system is used for providing detection laser and coupling laser for the miniature atomic gas chamber so as to excite atoms in the miniature atomic gas chamber from a first low-energy-level state to a high-energy-level state; and the patch antenna is arranged on one side of the miniature atomic gas chamber and is used for providing a local oscillation microwave signal for the miniature atomic gas chamber so as to realize superheterodyne high-sensitivity microwave signal receiving.

The invention relates to the technical field of charging piles, and discloses a matrix split type direct current charging pile and a power distribution method thereof, and the charging pile comprises a power control unit which is configured to control the power output of the charging pile according to the connection information of a charging gun; the charging module unit is connected with the power control unit, the matrix power distribution unit is connected with the charging module unit, the matrix power distribution unit is controlled by a power distribution mainboard, direct-current electric energy output by the charging module unit is switched to a required direct-current bus, and the direct-current electric energy is conducted to a charging gun of a terminal cabinet through a high-voltage cable to charge a vehicle end; the terminal control unit is connected with the matrix power distribution unit; and the man-machine interaction unit is connected with the power control unit. According to the invention, the output of the power of the charging pile can be accurately controlled according to the connection information of the charging gun, efficient distribution of electric energy is realized, the charging process is optimized, the phenomenon of unbalanced power output in a traditional charging pile is avoided, and the charging efficiency is improved.

The invention discloses a fork type mobile robot power distribution unit dynamic distribution control method and system, and relates to the technical field of intelligent robots, and the method comprises the steps: arranging sensors at a robot PDU input end and each output channel, collecting an operation data set in real time, and carrying out the preprocessing to form a dynamic feature data set; the main control microcontroller carries out power response analysis and evaluates a channel response state based on the dynamic characteristic data set, generates a preliminary power distribution instruction, calculates a target current MI during preliminary power distribution, carries out thermal stress analysis, and constructs a thermal stress identification index Htt to carry out thermal accumulation risk evaluation; when a heat accumulation risk exists, calculating a channel target current MII when the secondary power supply is distributed, and adjusting the duty ratio of an MOSFET (Metal-Oxide-Semiconductor Field Effect Transistor) switch to carry out heat suppression regulation and control; and after the distribution is completed, calculating an energy utilization rate Nsys and executing energy efficiency state evaluation. According to the method, adaptive distribution and safe operation management of the multi-channel power supply of the robot are realized.

The invention discloses a distributed intelligent power distribution method and system for a power network, and belongs to the technical field of power distribution control, and the method comprises the steps: collecting multi-dimensional electrical parameters of a power generation node in real time, and carrying out the dynamic power monitoring at a feeder terminal of a transformer substation through an edge calculation node; executing line loss calculation and load prediction in the power distribution unit, generating a demand feedback instruction to a feeder terminal node, and triggering an adaptive power distribution strategy; and on the basis of a digital twin system of a regional dispatching center, credibility verification is carried out on operation decisions of all edge nodes, and global optimization compensation control is executed. The method has the remarkable advantages in the aspects of optimizing power distribution, reducing line loss, improving system stability and safety and achieving efficient energy utilization, and intelligent management of a power network becomes possible.

The utility model relates to a high-voltage power distribution box, the high-voltage power distribution box comprises a control unit and a power distribution unit, the control unit comprises a cover body, a control circuit board, a base, a plugging device and a control component group, the control component group is installed on the control circuit board, the cover body and the base are detachably connected, and the control circuit board is arranged between the cover body and the base. The power distribution unit comprises a bottom shell and a power distribution component set, the power distribution component set is installed on the bottom shell, the plugging device comprises a male end assembly and a female end assembly, one of the power distribution component set and the control circuit board is electrically connected with the male end assembly, the other one is electrically connected with the female end assembly, and the male end assembly is inserted into the female end assembly. And the control component group can be electrically connected with the power distribution component group through the control circuit board and the plugging device. According to the high-voltage distribution box provided by the invention, the problems that a large amount of internal space of the high-voltage distribution box is occupied and the assembly difficulty of the high-voltage distribution box is increased in an existing installation mode are solved.

The invention relates to the technical field of battery systems, and discloses a multifunctional power distribution unit and method for a heavy truck type battery system, full-function architecture design is carried out, and the method comprises the following steps: designing a main loop; designing a negative electrode end detection control loop; designing a heating loop; a communication control loop is designed, a battery management system is integrated in a designed battery distribution unit, and a communication connector group is externally connected with a whole vehicle system for data interaction; designing a pre-charging loop; solidifying the box body structure and the device positions, and carrying out device layout in the box body along the box wall and the box bottom; corresponding devices are reduced according to a preset mode, the total negative relays of the pre-charging loop and the negative electrode end detection control loop are adjusted to be connected in parallel according to needs, the collecting wire harness and / or the trend of the copper bar are adjusted, and different new frameworks are derived. The platform PDU is obtained through design, the box body serves as a shared platform, the multi-framework derivation capacity is achieved, the diversity and universality of the power distribution unit are improved, and the development cost and period of cross-configuration are optimized.

A cooling manifold for distributing liquid coolant to a plurality of liquid cooled information handling systems includes a temperature sensor, a pressure sensor, and a flow meter for detecting coolant temperature, pressure, and flow rate respectively. The cooling manifold may further be associated with a data acquisition device configured to convert signals representing temperature, pressure, and flow rate from the sensors to data signals and transmit the data signals to a data center building management system via a power distribution unit.

Disclosed embodiments provide methods, systems, and computer program products for implementing predictive three-phase power distribution unit (PDU) output load switching for input phase balancing. Disclosed embodiments measure PDU output port power values for powering a plurality of loads over time, perform pattern recognition on the PDU output port power values over time to produce recognized power patterns; and create switching rules based on the recognized power patterns to provide input phase load balancing, wherein the switching rules include at least one of (i) predicted output port power values for a periodic time interval, or (ii) predicted output port power values based on the measured PDU output port power values associated with the loads. Disclosed embodiments switch input phase connection to one or more PDU outputs based on the switching rules.

A combiner cabinet and an energy storage device are provided. The combiner cabinet includes a cabinet body and a power distribution unit, a control unit and a combiner unit that are arranged in the cabinet body. The cabinet body is provided with an opening and a first storage space, a second storage space and a third storage space that are sequentially arranged from top to bottom in a vertical direction. The power distribution unit is arranged in the first storage space. The opening is respectively in communication with the first storage space, the second storage space and the third storage space. The power distribution unit is arranged in the first storage space, the control unit is arranged in the second storage space, and the combiner unit is arranged in the third storage space.

The invention relates to the technical field of vehicles, in particular to a dual-redundancy power supply management system and method, and the system comprises an intelligent power distribution unit which is integrated with a first-stage power distribution circuit and a second-stage power distribution circuit; a plurality of MOS (Metal Oxide Semiconductor) tubes are arranged in the primary power distribution circuit and are used for executing corresponding switching operations according to different power failure modes; the secondary power supply distribution circuit comprises a plurality of high-side driving units and is used for providing controlled power supply output for a load, and the high-side driving units have the functions of current detection, temperature detection and fault protection; and the control unit is used for controlling the on-off states of the MOS tube and the high-side driving unit and realizing feedback and remote control of fault information through a bus. Therefore, the problems of low integration level, limited functions, insufficient safety, difficulty in meeting high-order intelligent driving requirements and the like of a vehicle power supply management scheme in related technologies are solved.

A system may comprise a vehicle having a frame. One or more rails may form at least a portion of the frame. The system may comprise a container configured to be mounted to the one or more rails. The system may comprise a plurality of battery packs positioned within the container below the one or more rails. Each of the plurality of battery packs may extend across an entire length of the container. The system may comprise a power distribution unit (PDU) to which the plurality of battery packs are connected. The plurality of battery packs may be configured to provide power to at least one component of the vehicle via the PDU. The container may protect against road debris and moisture.

The invention relates to the technical field of power distribution units, and discloses an intelligent elastic power distribution unit device of a liquid-cooled high-power server and a method thereof, and the device comprises a cabinet which is internally provided with a power distribution module and a plurality of server hosts; the heat dissipation assembly is used for dissipating heat of the plurality of server hosts; the dust cleaning assembly is used for cleaning dust on the heat dissipation assembly; the moisture-proof assembly is used for keeping the dryness in the cabinet; the heat dissipation assembly comprises a water tank. Through the arrangement of the heat dissipation assembly, the plurality of cooling pipes can enlarge the heat dissipation surface of cooling liquid, the three heat dissipation fans can accelerate the dissipation of heat in the plurality of cooling pipes through the air cooling effect, hot air can be discharged out of the cabinet in time, the accumulation of more heat in the cabinet is avoided, and the three heat dissipation fans can move up and down, so that the heat dissipation efficiency is improved. Therefore, air in the cabinet flows more uniformly, and the situation that hot air in local positions cannot be discharged out of the cabinet body in time is avoided, so that the heat dissipation effect of a plurality of server hosts is ensured.

The invention discloses a machine room fault positioning dynamic environment monitoring system, relates to the technical field of machine room monitoring, and solves the problems of inaccurate power supply fault source positioning and response lag of a traditional system. According to the technical scheme, the method comprises the steps that a current sensor set is arranged at the input end of a cabinet-level power distribution unit in a machine room, current values are monitored at the interval of 15-30 seconds, a power supply path database stores electrical connection topology and coordinates of a mains supply input cabinet, a UPS output cabinet, an array cabinet and the cabinet-level power distribution unit, and a central processing unit compares the current values with a preset threshold value; and when the current of a certain unit continuously exceeds a threshold value for 20-60 seconds, a primary alarm signal is generated, an upstream equipment sequence column head cabinet shunt, a UPS output cabinet circuit breaker and a mains supply input cabinet switch corresponding to the fault unit are extracted, and an alarm signal and sequence information are output. The system is used for machine room power supply fault accurate positioning and rapid processing, and the maintenance efficiency and the system reliability are improved.

An autonomous vehicle can include multiple low voltage power domains. Each low voltage power domain can comprise a low voltage power distribution unit (LVPDU). An LVPDU can include a failsafe switch that can selectively couple or de-couple the low voltage power domain from a shared backup low voltage power source, which can be configured to concurrently supply backup power multiple low voltage power domains or LVPDUs. A first LVPDU of a first low voltage power domain can generate a control signal to control the failsafe switch of a second LVPDU of the second low voltage power domain to disconnect the second low voltage power domain from the shared low voltage backup power source, and vice versa.

Embodiments for a battery pack for an electric marine vessel are described herein. In a particular embodiment, a battery pack for an electric marine vessel comprises a waterproof chassis, a high voltage battery comprising a plurality of battery cells disposed within the chassis, positive and negative high voltage connectors disposed on a front flange of the chassis, a manual disconnect connector disposed on the front flange of the chassis, and a signals connector disposed on the front flange of the chassis, the signals connector configured for signal communication with at least a power distribution unit and a vessel control unit. A battery management system disposed within the chassis and coupled to the signals connector comprises a battery management controller, a plurality of relays operable by the battery management controller, and a plurality of sensors electrically coupled to the battery management controller.

An electric work vehicle includes a power distribution unit (PDU), a plurality of battery strings, and a battery housing to house the plurality of battery strings. Each of the plurality of battery strings includes a plurality of battery modules connected in series, the PDU includes a first PDU housing to house a positive rail and a second PDU housing to house a negative rail, each of the first PDU housing and the second PDU housing are separate and spaced away from the battery housing, the first PDU housing is located on a first side of a centerline of the electric work vehicle that extends in a front-rear direction of the electric work vehicle, and the second PDU housing is located on a second side of the centerline of the electric work vehicle opposite to the first side of the centerline of the electric work vehicle.

The invention discloses a high-voltage power distribution unit supporting switching of double battery packs for an electric forklift and a control method, and belongs to the technical field of new energy power systems of electric forklifts. The high-voltage power distribution unit supports the electric forklift to be provided with one or two battery packs, each battery pack corresponds to one high-voltage power distribution unit, and the power distribution units are integrally installed in a battery box body. The power distribution unit comprises core loops and components such as a discharging loop, a charging loop, a pre-charging loop and a heating loop, through cooperative control of the BMS and the VCU, discharging, charging and low-temperature heating of a single battery pack can be achieved, non-inductive switching (automatic switching of a master pack and a slave pack and no influence on operation) of double battery packs can also be achieved, and the double battery packs are not limited by capacity and can be independently charged and replaced. According to the electric forklift, the problems that a traditional electric forklift cannot give consideration to rapid charging and rapid battery replacement at the same time, and the compatibility of batteries with different capacities is poor are solved, and the use flexibility, operation continuity and environmental adaptability of the electric forklift are improved.

The invention relates to the technical field of power distribution system protection, in particular to a high-safety energy storage system and a fault detection method thereof, the system comprises a measurement and control center, an insulation monitoring device, a bidirectional DC-DC converter and an integrated DC power distribution unit, the insulation monitoring device is connected with a DC power distribution bus, and the ground insulation state of the bus is monitored in real time; the input end of the bidirectional DC-DC converter is connected with the storage battery pack, and the output end is connected with the DC power distribution bus through the integrated DC power distribution unit to construct an electric energy distribution path. The integrated direct current power distribution unit comprises a circuit breaker, two voltage detection modules and two current detection modules, the first voltage detection module is connected with the direct current power distribution bus and the measurement and control center, the second voltage detection module is connected with the circuit breaker and the measurement and control center, and the circuit breaker is connected with the direct current power distribution bus. And the two current detection modules are connected in series between the output end of the bidirectional DC-DC converter and the circuit breaker to form a current detection loop. According to the invention, through multi-level real-time monitoring and centralized control, the safety and fault response capability of the system are significantly improved.

An electric work vehicle includes a power distribution unit (PDU). The PDU includes a first PDU housing to house a positive rail and a second PDU housing to house a negative rail, and the first PDU housing is spaced away from the second PDU housing. The first PDU housing is located on a first side of a centerline of the electric work vehicle that extends in a front-rear direction of the electric work vehicle, and the second PDU housing is located on a second side of the centerline of the electric work vehicle opposite to the first side of the centerline of the electric work vehicle.

The invention discloses a wind-solar-storage integrated direct-current micro-grid device and a control method, and relates to the technical field of rural distributed energy. The device comprises a perovskite photovoltaic module array, a vertical axis fan set, a lithium iron phosphate energy storage module, a direct-current power distribution unit, an intelligent control module and a household direct-current terminal, each energy unit and a load are directly connected through a direct current bus, AC / DC conversion loss is reduced, the intelligent control module dynamically adjusts a wind-solar-storage cooperative operation strategy based on illumination, wind speed and electrical load data, and the functions of five-hour stable off-grid power supply and peak-valley arbitrage are achieved. The method adapts to a rural farm house roof resource concentration scene, solves the problems of high loss and poor off-grid stability of a traditional alternating current micro-grid, remarkably improves the energy utilization efficiency, reduces the electricity utilization cost of farmers, and can be widely applied to energy transformation projects in rural areas such as coastal areas.

The invention discloses an intelligent power supply system for an integrated energy cabinet of a communication base station, and the system comprises a power supply parameter collection module which obtains parameters such as an input voltage fluctuation sequence and multipath load current data; the power supply feature extraction module performs fusion analysis on the parameters to generate a power supply feature vector set; the decision space construction module presets a power supply strategy knowledge base and a feature vector set, and establishes a power supply decision space index structure; the power supply decision module matches the optimal power supply strategy combination and outputs a first power supply control instruction set; the power supply execution module drives the power distribution unit to execute load power supply switching and storage battery charging and discharging control. The system comprises an energy pool module, an integrated photovoltaic device, a commercial power device and the like to realize access and dynamic distribution; the anti-countercurrent control unit ensures the energy flow safety; the zero-loss switch array regulates and controls an electric energy path to improve the efficiency; the power supply execution module drives multi-power-supply switching, security isolation and path switching, supports commercial power peak clipping, light stacking and off-peak power utilization, and improves the power supply reliability and energy efficiency of the base station.

A Power Distribution Unit (PDU) includes a cover and a base. The cover has multiple fastener receptacles and a pair of indentations located along its outer edge. The base has an opening on a short side of the PDU for receiving a cable connector and a window on a long side of the PDU, the window being secured to a second cover. The long side is perpendicular to the short side.

The embodiment of the invention provides a hybrid redundant power supply system and a vehicle. The system comprises a 12V power supply network, a 48V power supply network and a bidirectional DCDC, the 12V power supply network comprises a low-voltage power distribution unit, the low-voltage power distribution unit is integrated with a 12V safety switch, the 12V safety switch is used for 12V power supply redundant power supply and meets the function safety ASIL-D requirement, the 48V power supply network comprises a medium-voltage power distribution unit, the medium-voltage power distribution unit is integrated with a 48V safety switch, the 48V safety switch is used for 48V power supply redundant power supply, and the bidirectional DCDC is connected with the medium-voltage power distribution unit. And the bidirectional DCDC is connected in series between the 12V power supply network and the 48V power supply network, and is used for mutual standby power supply between the 12V power supply network and the 48V power supply network. On the basis of meeting the power supply requirement, the complexity and the failure rate of the power supply system are reduced, and the expansibility and the compatibility are improved.

The embodiment of the invention discloses a power distribution system, a power distribution method and a vehicle, the power distribution system comprises a main power supply, a central power distribution unit and a plurality of power distribution areas, and the main power supply is connected with the central power distribution unit; the central power distribution unit is respectively connected with the plurality of power distribution areas, and the plurality of power distribution areas are not connected; and the central power distribution unit is used for controlling the main power supply to supply power to each power distribution area. In this way, regional power distribution can be carried out on the vehicle, and independent power supply can be carried out on each power distribution region.

Disclosed embodiments provide methods, systems, and computer program products for implementing enhanced phase power load balancing of a set of systems (e.g., the set of systems of a data center) using a subset of the systems. Disclosed embodiments extract phase currents of a three-phase power source of the set of systems, and determine, based on extracted phase currents for the set of systems, input phase power load balancing for the subset of the systems. Disclosed embodiments alter the current input phase power balancing of the subset, unbalancing the input phase power load for the subset of the systems to provide enhanced phase power load balancing of the set of systems. Altering the current input phase power balancing for the subset of the systems can be implemented by power shifting between power supply units (PSUs), phase rotations, or input phase switching of power distribution unit (PDU) switchable output ports.

This disclosure provides an X-ray imaging device and its power distribution unit and wireless power transmission device. The power distribution unit includes: a first rectifier circuit, a charging circuit, an energy storage module, and a first inverter circuit; the input terminals of both the first rectifier circuit and the charging circuit are connected to the external power grid; the output terminal of the first rectifier circuit is connected to the input terminal of the first inverter circuit, and the output terminal of the first inverter circuit is connected to the wireless power transmission device of the X-ray imaging device; the output terminal of the charging circuit is connected to one end of the energy storage module, and the other end of the energy storage module is connected to the input terminal of the first inverter circuit. In this disclosure, the power supply from the power grid and the power supply from the energy storage module are in parallel, which can reduce the imaging device's demand on the power grid capacity. Since the charging circuit only participates in the charging process of the energy storage module and does not participate in the discharging process of the energy storage module, it can realize simultaneous charging and discharging of the energy storage module, and there are no excessive requirements on the power level of the charging circuit, which can reduce the cost of the charging circuit.

The invention discloses a fuel cell system without a direct-current converter, and relates to the technical field of high-voltage platform architecture of hydrogen fuel cell systems, and the system comprises a fuel cell module which is used for generating electric energy; the whole vehicle power module comprises a first high-voltage power distribution unit, a bidirectional DCDC unit and an energy storage unit, the first high-voltage power distribution unit is used for obtaining the electric energy, and the bidirectional DCDC unit is used for achieving energy conversion between the first high-voltage power distribution unit and the energy storage unit.

The invention relates to the technical field of electric power communication cabinets, in particular to an electric power communication cabinet visualization auxiliary device which comprises a cabinet body, a cabinet door and installation support assemblies used for installing communication equipment, the installation support assemblies are symmetrically and fixedly arranged in the cabinet body, and a cabinet door hinge is arranged on the cabinet body. A first power distribution unit is arranged at the upper end in the cabinet body through a mounting bracket assembly, a dynamic environment monitoring module is arranged at the lower end of the first power distribution unit, and a visual auxiliary device is arranged at the top of the inner side of the cabinet body at the upper end of the first power distribution unit; the visual auxiliary device is connected with a power and environment monitoring module arranged at the lower end of the first power distribution unit through a wire in the cabinet body; the power and environment monitoring module comprises a power and environment module, a data storage module, a management module and an alarm module; the system has the advantages that the management capability of data information of the electric power communication cabinet is improved, and real-time monitoring and management of internal equipment of the electric power communication cabinet are realized.