490 results about "Power distribution unit" patented technology

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 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.

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.

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.

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.

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 vehicle power distribution method, device and equipment based on a centralized domain controller, and a storage medium. The method comprises the following steps: collecting multi-source vehicle power distribution associated data through a centralized domain controller; wherein the centralized domain controller is a vehicle part integrating a whole vehicle control unit, an intelligent power distribution unit, a communication gateway unit and a redundant power supply module into a single shell; performing fusion processing on the multi-source vehicle power distribution associated data to obtain target fusion data; generating a vehicle power distribution control instruction based on a pre-constructed load power supply priority rule, a preset software configuration rule and the target fusion data; and on-off states of a large-current power distribution module and a small-current intelligent power distribution module of the intelligent power distribution unit are controlled based on the vehicle power distribution control instruction so as to realize power supply of each load. The technical effects of improving the integration level and the control precision of the power distribution system and guaranteeing the power supply stability are achieved.

The invention relates to the technical field of data center computing power and electric power resource cooperative control, in particular to an electric power dynamic monitoring system based on a knowledge graph. Comprising a heterogeneous data spin mapping unit used for collecting current waveform data and voltage data of an intelligent power distribution unit; the topological coupling force field construction unit is used for acquiring physical topological data and logical topological data of the data center and generating a coupling strength matrix defining association weights among nodes; the dynamic potential energy evolution and gradient analysis unit is used for generating a potential energy gradient vector for indicating a regulation and control direction; the potential energy guiding regulation and control decoding unit is used for receiving the potential energy gradient vector; monitoring the modulus length of the potential energy gradient vector; and after the closed loop feedback logic and the hardware control signal are executed, the physical operation states of the intelligent power supply distribution unit and the server calculation unit are changed. According to the method, the mathematical abstraction ability and the quantization accuracy of the stability monitoring of the complex data center system are remarkably improved.

Embodiments of the present disclosure provide a modular power supply (MPS) system and device providing an ability for all-in-one or most-in-one device configurations. In various embodiments, the available components include Direct Current (DC) to Alternating Current (AC) power supply, DC to DC power supply, AC to DC power supply, system health monitoring solutions, power distribution solutions, common, toolless interfaces and universal packaging and mounting. Embodiments include a control module, at least one power module, an inverter module, a power distribution unit module, a signal interface and a mechanical interface to facilitate use and operation of the device as an integrated unit.

This application provides a power distribution device, a charging device, an energy storage device, and a charging system. The power distribution device includes at least one power distribution unit, each power distribution unit including at least one power port, multiple load ports, at least one connection port, and a switch matrix. Each power port is used to connect to a power module in the charging device, and each load port is used to connect to a load. The switch matrix is ​​used to disconnect or connect any two of each power port, each load port, and each connection port. At least one power distribution unit of the power distribution device includes a first power distribution unit, and one connection port of the first power distribution unit is used to connect to the power distribution units of other charging devices. This application embodiment can flexibly adjust the output power of the load ports of the power distribution device to meet the charging power requirements of different loads.

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.

A medical imaging system includes an X-ray source configured to emit X-rays. The medical imaging system also includes a high voltage generator configured to provide power to the X-ray source. The medical imaging system further includes a high efficiency power distribution unit configured to receive electrical power from an electrical grid and to store the electrical power, wherein the high efficiency power distribution unit includes an active rectifier configured to regulate a high voltage direct current outputted to components of the medical imaging system including the high voltage generator.

The invention discloses a scheme-stage cable type selection configuration design method, device and equipment, a medium and a program product, and the method comprises the steps: inputting the plant layout information of a target plant and a plant equipment data list set into a pre-constructed cable type selection intelligent agent model for cable type selection configuration, and generating a power distribution unit strategy of each substation, evaluating each power distribution unit strategy, re-performing cable type selection configuration on the substation corresponding to the power distribution unit strategy of which the evaluation score does not reach a preset score threshold value, outputting the power distribution unit strategy of each substation as a cable data list of a target plant area, determining a to-be-adjusted substation in the target plant area based on plant area layout adjustment information, and performing cable type selection configuration on the to-be-adjusted substation according to the determined to-be-adjusted substation. The power distribution unit strategy corresponding to the substation to be adjusted in the cable data list is adjusted, the adjusted cable data list is output based on the adjustment result, complex project scheme changes are effectively coped, project design requirements are accurately met, and cable design rationality and design efficiency are improved.

The utility model discloses a power distribution device and a charging system, and relates to the technical field of charging. The device is applied to the charging system, the charging system comprises at least three power modules, and the device comprises at least one first switch unit and a second switch unit; the first switch unit comprises three groups of first nodes and three groups of first controllable switches, every two groups of first nodes are connected through one group of first controllable switches, each group of first nodes are respectively connected with each power module, and at least one group of first nodes is connected with the charging interface; at least two groups of first nodes in the first switch units are provided with first output buses, and at least one first output bus of each first switch unit is connected through a second switch unit. Therefore, the modularization and the expansibility of the power distribution unit are improved.

The invention discloses an AC-DC hybrid power distribution system, and belongs to the technical field of power distribution control. The device is applied to a low-voltage side of a distribution transformer area of a power distribution network and supports alternating-current power distribution and direct-current power distribution at the same time. Comprising an MPR controller, an alternating-current power distribution unit and a direct-current power distribution unit which are arranged in a power distribution cabinet, and the MPR controller is connected with the alternating-current power distribution unit and the direct-current power distribution unit for bidirectional communication; the medium-voltage direct-current bus is connected with the alternating-current power distribution unit through a bidirectional four-leg PCS and is connected with the direct-current power distribution unit; the bidirectional four-bridge-arm PCS realizes electric energy bidirectional conversion between the AC power distribution unit and the medium-voltage DC bus, and provides a stable DC power supply for the DC power distribution unit. According to the invention, scenes such as rated grid connection and margin absorption of photovoltaic power generation are formed by adding energy storage and micro-grid control, so that the stability of power supply is ensured; the bidirectional four-bridge-arm PCS is used for solving the electric energy quality problems of three-phase imbalance, harmonic waves, reactive compensation and the like.

The invention relates to the technical field of vehicle control, and discloses a heavy electric vehicle high-voltage power distribution system and a control method. The battery power distribution unit is integrated with a high-voltage main loop on-off module, a centralized pre-charging module and a short-circuit protection module, and is used for centralized on-off control and centralized pre-charging management of high-voltage electric energy; the charging interface is used for external charging; the power electronic unit is integrated with a motor controller, a direct-current converter, an auxiliary system controller and a power distribution module and forms a plurality of high-voltage power utilization loops, and high-voltage electric energy transmitted by the integrated battery power distribution unit is distributed to the high-voltage power utilization loops; the motor controller is configured to actively discharge the high-voltage electric loop; the power distribution system and the high-voltage electric appliance are cooperatively controlled through a whole vehicle CAN network. According to the invention, system architecture hardware simplification is realized by optimizing a whole vehicle CAN network communication mechanism and a whole vehicle high-voltage control strategy, and the reliability and safety of a high-voltage power distribution system are improved through a control mode of centralized pre-charging and sequential enabling of electric appliances.

A vehicle load power distribution control method and apparatus, and a computer program product. The method comprises: when it is detected that a certain load of a vehicle has a fault, automatically turning off a power distribution port of a power distribution unit for the load; identifying whether a state transition triggered on the basis of an operation of a driver is present on a vehicle bus communication network; and when the state transition is identified, sending a power-on request to the power distribution unit for the load, so as to restore the power distribution of the load. By means of restoring an abnormally disabled power distribution function from an unconscious habitual operation of a customer during traveling, the restoration process becomes imperceptible, thereby greatly mitigating adverse experience of customers. Fault recovery can also be performed without stopping, thereby significantly improving the safety and convenience of traveling, and providing a smoother and more comfortable driving experience for drivers.

The utility model relates to a computer and power distribution cabinet body for a CT machine, which comprises a plurality of layers of drawers arranged in an upper layer area and connected to computer area support columns arranged on two sides along the height direction of the cabinet body in a drawable manner; the emergency power supply and switch supporting plates in the middle area are horizontally mounted on the upright posts on the two sides of the cabinet body; the power distribution unit installation area of the lower layer area comprises a front panel and a rear panel, and further comprises four power area supporting columns arranged in the height direction of the cabinet body, gaps are formed between the power area supporting columns and the front panel and between the power area supporting columns and the rear panel respectively, the front panel is provided with input and output terminal holes matched with input and output terminals of a power distribution unit, and the rear panel is provided with input and output terminal holes matched with input and output terminals of the power distribution unit. The rear panel is provided with protection and control terminal holes matched with protection and control terminals of the power distribution unit. The power distribution unit is installed on a supporting crossbeam at the bottom of the cabinet body. According to the utility model, the technical problems of low space utilization rate and unreasonable layout of the CT cabinet body in the prior art are solved.

The invention discloses a vehicle-mounted adaptive multi-mode intelligent switching power supply system, and belongs to the electrical field. The system comprises a diesel generating set, a dual-power-supply automatic switching control box, an uninterruptible power supply, a power battery pack, an alternating-current power distribution unit, a direct-current power supply, a direct-current power distribution unit, an alternating-current switching box, a master control panel and a power supply and distribution system cable network. The diesel generating set is used as a standby power supply and is automatically switched with the mains supply through the dual-power-supply automatic switching control box; the uninterruptible power supply realizes alternating current conversion and battery inversion backup; the direct-current power supply provides low-voltage direct-current output; the alternating-current and direct-current power distribution units realize electric energy distribution and control; the alternating current switching box realizes single-path input and multi-path output; and the master control panel centrally controls the start, stop and on-off of the system. The system has the characteristics of multi-mode self-adaption, intelligent switching, fault self-recovery and high reliability, and is suitable for stable power supply of vehicle-mounted equipment such as a military command vehicle.

This invention discloses a charging control system and method for electric vehicles. The system includes: a vehicle controller, a power distribution unit (PDU), a charging socket, a first pre-charge relay, a first positive charging relay, and a first negative charging relay. The first positive charging relay is connected in series between the positive output terminal of the PDU and the positive terminal of the charging socket, and the first negative charging relay is connected in series between the negative output terminal of the PDU and the negative terminal of the charging socket. The first pre-charge relay and the first positive charging relay are connected in parallel. When the charging socket and charging plug are plugged in, after the power battery charging and discharging circuit is connected, the vehicle controller first controls the first pre-charge relay and the first negative charging relay to close, so as to perform pre-charging through the PDU pre-charge circuit. When the voltage difference across the first positive charging relay is less than a set value, the vehicle controller controls the first positive charging relay to close and controls the first pre-charge relay to open, forming the PDU main charging circuit. This invention can improve compatibility and safety with charging piles.

This application discloses a method, a power cabinet, and a power distribution control system for controlling power distribution from a power module to a charging terminal. A power distribution method includes: a power control unit determining a power distribution mode for one or more charging terminals, including: obtaining the number of available modules in the power module; calculating the required number of modules based on the power demand from one or more charging terminals and the rated power of a single power module; comparing the required number of modules with the number of available modules; determining an efficiency-priority mode or a power-priority mode as the power distribution mode based on the comparison result; the power control unit selecting a target power module and determining a target power path based on the power distribution mode; and the power control unit sending an instruction to a power distribution unit, causing the power distribution unit to invoke the target power module to distribute power to the charging terminal by controlling the operation of a switch associated with the target power module and the target power path.

The invention discloses a controller assembly and a vehicle, and belongs to the technical field of motor control. The controller assembly has a first direction, a second direction and a third direction which are mutually perpendicular in pairs, the first direction is parallel to the width direction of the vehicle, the second direction is parallel to the height direction of the vehicle, and the third direction is parallel to the length direction of the vehicle; the controller assembly comprises a first integrated module and a second integrated module, and the first integrated module and the second integrated module are arranged in a stacked mode in the second direction. The first integrated module comprises a first box body, a power supply module and a high-voltage power distribution unit; the second integrated module comprises a second box body, a filtering assembly, a supporting capacitor, an integrated plate assembly and an output terminal. According to the controller assembly, the number of parts can be reduced, the manufacturing cost can be reduced, the size in the third direction can be reduced, and therefore the forecabin collision energy absorption space is increased.

This utility model relates to the field of novel power battery pack technology, specifically to a wireless display system for power batteries. It includes a power battery pack, a housing, and a display screen. The power battery pack contains a power distribution unit for collecting battery status data. The housing has a built-in wireless module that connects to the power distribution unit via a wiring harness to achieve wireless data transmission. The display screen communicates wirelessly with the wireless module and has a built-in independent power supply unit to ensure that key parameters can still be displayed even when power is off. This utility model solves the problems of easy breakage and signal instability in traditional wired connections in dynamic scenarios through wireless transmission technology. Simultaneously, the use of partition isolation and shielded cable design effectively reduces electromagnetic interference and improves data acquisition accuracy. It is suitable for scenarios requiring real-time battery status monitoring, such as new energy vehicles and construction machinery, and can significantly improve the safety and stability of power battery monitoring.

A power distribution unit includes a housing, a BMS assembly, an overcurrent assembly, and a wiring harness assembly. The housing includes a lid and a bottom wall disposed in a first direction, a first mounting cavity and a second mounting cavity disposed in the first direction being formed between the lid and the bottom wall. The BMS assembly is mounted in the first mounting cavity, where a wiring space is formed between the housing and a side of the BMS assembly in a second direction. The wiring harness assembly passes through the wiring space to be connected to the BMS assembly and the overcurrent assembly separately.

The utility model relates to lighting equipment technical field, especially a kind of electrical system of high-voltage direct current power supply with emergency function, including ac distribution unit, HVDC unit, main control unit, direct current distribution unit, leakage detection unit, emergency energy storage unit, communication network, high-voltage direct current network and distributed lighting node;The ac distribution unit, HVDC unit, main control unit, direct current distribution unit and leakage detection unit are integrated in control cabinet;Ac distribution unit is connected with HVDC unit and main control unit;HVDC unit is connected with main control unit, emergency energy storage unit and distributed lighting node and supplies power;Main control unit is communicated with HVDC unit, emergency energy storage unit, direct current distribution unit and leakage detection unit, distributed lighting node by communication network;Emergency energy storage unit is connected with communication network and high-voltage direct current network.The utility model can realize more quickly, more reliable, more high integration degree's emergency control.

The application discloses a kind of multi-level distribution unit fusion feature safety evaluation method and system, it is related to multi-level distribution unit fusion technical field, the application includes data fusion processing, feature extraction, safety evaluation coefficient calculation, safety state analysis and control instruction generation, the consistency and availability of multi-source heterogeneous data are effectively promoted by data fusion processing, by comprehensively extracting multidimensional features such as steady state, transient state and event, system operating state can be fully described;Further based on multiple safety evaluation coefficients and comprehensive safety evaluation coefficients, hierarchical analysis from data to function to control layer is realized, the accuracy of safety state judgment is improved;Finally, safety state identification and strategy library are combined to dynamically generate control instruction, realize the closed-loop management from state perception to decision execution, greatly improve the response speed and control precision of system in response to abnormal working condition, enhance the reliability and toughness of distribution system operation.