274 results about "Power sharing" patented technology

A quantum-distributed microgrid controller employing a synchronization mechanism by leveraging the quantum properties of qubits. Since the distributed control problems of electrical networks such as microgrids can be modeled as networked differential equations, a proposed master equation is leveraged to construct the network of differential equations. By characterizing proper observables, expectation values of all the observers at all nodes will eventually get synchronized to a possibly time-varying target value and the synchronization rule follows the forced Kuramoto model. The quantum synchronization scheme is exploited to regulate AC microgrids' frequency and DC microgrids' voltage and guarantee precise power sharing. Due to the superposition feature of qubits, the QDC provides a foundation for introducing more enhanced quantum-secure distributed control for microgrids through randomizing the θ angle of qubits in the initialization step, which finally results in an unprecedented security for distributed control of AC and DC microgrids.

The invention provides an edge gateway computing power sharing method based on an MQTT protocol. An edge terminal sends a computing power request to an edge gateway through the MQTT protocol, wherein the computing power request comprises a computing task type identifier and a priority identifier; after receiving the computing power request, the edge gateway dynamically schedules heterogeneous computing resources of a built-in neural network processing unit (NPU) and a built-in central processing unit (CPU) according to a computing task type identifier and a priority identifier; and the edge gateway executes a corresponding calculation task by using the scheduled calculation resource, feeds back a processing result to the edge terminal initiating the request through an MQTT protocol, and synchronizes own calculation power state information.

A control system for a direct current (DC) microgrid is described. The control system includes a DC bus with a positive bus line and a negative bus line, DC battery circuits with a positive coupler connected to the positive bus line and a negative coupler connected to the negative bus line, switches including a control input terminal located in each DC battery circuit, a distributed generator circuit connected to the DC bus, a constant load power circuit connected to the DC bus, a computing device connected to each control input terminal, the DC bus, the distributed generator circuit and the constant load power circuit. The computing device includes an electric circuitry, a memory, and at least one processor to determine a DC bus voltage, determine the SoC of the DC battery circuits, generate PWM signals that control the DC bus voltage, and balance the SoC of the DC battery circuits.

The invention discloses a rail transit multi-system fusion platform, and relates to the technical field of intelligent operation and maintenance of rail transit vehicles, and the platform comprises a fusion platform host, a communication switch, an application system and terminal equipment thereof. The core of the system is that logic functions of all application systems are packaged in an SDK mode, interaction with a fusion platform host is achieved through a unified API interface, computing power sharing of hardware resources such as an AI module and an MPU module in the host is achieved through a 10-gigabit PCIE bus, a SWITCH switch module dispatches data transmission in a unified mode, the independent computing capacity of a subsystem is reserved, and the data transmission efficiency is improved. By means of the framework, the newly-added system does not need to additionally deploy a host, the function can be expanded only by accessing terminal equipment meeting the standard, the limitation that in a distributed framework, hardware needs to be added to the newly-added system is effectively solved, and elastic reuse of the hardware resources is achieved.

The invention provides a grid-connected system and method based on parallel operation power equalization of synchronous motor units, and relates to the technical field of new energy and electric power engineering. The system comprises a new energy station power generation system and a parallel synchronous motor unit group, wherein the parallel synchronous motor unit group at least comprises two synchronous motor units which have the same electrical parameters and are connected in parallel; the first end of the parallel synchronous motor unit group is connected with the new energy station power generation system, and the second end is connected with the power grid. The method comprises the following steps: connecting one ends of all synchronous motor units to the same power supply bus, applying excitation current to the motor at the end, applying excitation current to the motor at the other end, then measuring the generator end voltage waveform, adjusting the relative mechanical angles of the synchronous motor units according to the measurement result, and ensuring that the relative mechanical angles of all the motor units are equal. And power equalization between parallel synchronous motor units is realized. The system structure can be simplified, the cost can be reduced, and the reliability and the flexibility of the new energy grid-connected system can be improved.

An example aircraft includes a parallel propulsion unit, the parallel propulsion unit comprising: a propulsor configured to provide forward propulsion of the aircraft; a gas turbine engine configured to drive the propulsor; an electrical machine configured to generate, for output via one or more electrical busses, electrical energy using mechanical energy derived from the gas turbine engine; and a power sharing module configured to control a ratio of the mechanical energy derived from the gas turbine engine used to drive the propulsor and used to generate electrical energy; and a plurality of series propulsion units, each series propulsion unit comprising a respective propulsor of a plurality of propulsors that are configured to provide forward propulsion of the aircraft and a respective electrical machine each configured to drive a respective propulsor of the plurality of propulsors using electrical energy received from one or more electrical busses.

An example aircraft includes a parallel propulsion unit, the parallel propulsion unit comprising: a propulsor configured to provide forward propulsion of the aircraft; a gas turbine engine configured to drive the propulsor; an electrical machine configured to generate, for output via one or more electrical busses, electrical energy using mechanical energy derived from the gas turbine engine; and a power sharing module configured to control a ratio of the mechanical energy used to drive the propulsor and used to generate electrical energy; and a plurality of series propulsion units, each series propulsion unit comprising a respective propulsor of a plurality of propulsors that are configured to provide vertical propulsion of the aircraft and a respective electrical machine of a plurality of electrical machines, each respective electrical machine configured to drive a respective propulsor of the plurality of propulsors using electrical energy received from one or more electrical busses.

The invention provides a direct-current boost collection converter of an offshore wind power full-direct-current sending-out system, and the converter can quickly suppress residual direct-current fault current, so that quick direct-current fault isolation is realized by utilizing a direct-current switch. And the fault clearing time is obviously shortened from about 500ms to below 14ms, so that rapid system recovery is realized. The working principle of the topology under the conditions of normal operation and direct-current fault is elaborated, and enhanced power equalization control is provided, so that direct-current voltage and current equalization among sub-modules of the topology is realized. In addition, after interleaving control is adopted, the number of direct-current reactors of the topology is remarkably reduced. A simulation result verifies the effectiveness of the hybrid DC / DC converter and the control scheme thereof in the aspects of blocking fault residual current and promoting direct current fault ride-through by using the DCS.

The embodiment of the invention discloses a control system of a multi-voltage bus hybrid micro-grid. The control system comprises a control layer and a hardware layer, wherein the medium-voltage direct-current bus is used for being connected with a distributed energy module of which the power is higher than a first set power value; the low-voltage direct-current bus is used for connecting an equipment assembly of which the power is lower than a second set power value, and the equipment assembly at least comprises a direct-current load of which the power is lower than a set value and a data center load; the AC bus is compatible with a traditional power grid and an AC load; the main control layer is used for realizing closed-loop regulation of voltage and current; the auxiliary control layer realizes the consistency of multi-bus voltage and frequency based on state estimation, bus impedance identification and virtual inertia control; and the comprehensive power management layer realizes cross-bus energy balance and power sharing based on a model predictive control and optimal scheduling algorithm. The technical problems that in the prior art, a control layer and a hardware layer of the multi-voltage bus hybrid micro-grid are independent of each other, a cooperative relation is lacked, and the dynamic self-adaptive adjustment type is poor are solved.

The invention provides an active support control method for a single-phase cascaded optical storage grid-connected system, aiming at challenges caused by fluctuation, intermittency and reverse peak regulation of photovoltaic resources in a photovoltaic energy consumption process and the problem of insufficient active support capability of a micro-grid for a large power grid under the access of high power electronic equipment. The low-voltage photovoltaic units are boosted by inverter cascading, and each photovoltaic unit is equipped with stored energy to stabilize photovoltaic fluctuation. A grid-side current source inverter is controlled by a virtual synchronous generator (VSG), so that the active support of the inverter on a large power grid frequency is ensured; other voltage source inverters adopt power factor angle droop control, and an active power compensation item is introduced, so that self-synchronization between the inverters and accurate power equalization between energy storage units are ensured. Compared with a traditional control method, the method can control active power and reactive power at the same time, has frequency supporting capacity, is low in communication cost, and provides a new solution thought for the problem of large-scale photovoltaic grid connection.

The invention discloses an electric ship standby battery control strategy based on improved droop control. The electric ship standby battery control strategy comprises the following steps: step 1, constructing a cooperative work model of an electric ship standby battery and a main battery; 2, improving a traditional droop control strategy through a translation droop curve, and achieving power equalization; step 3, based on the improved droop control strategy in the step 2, compensating voltage offset by using a fuzzy algorithm to improve the voltage control precision; and 4, accurately distributing the output current of each direct current bidirectional converter through output current information interaction between the main battery direct current bidirectional converter and the standby battery direct current bidirectional converter. According to the electric ship standby battery control strategy based on improved droop control, the output power of the standby battery can be rapidly and accurately adjusted according to the real-time operation state of the electric ship, and the electric ship standby battery control strategy has the practical application value for maintaining the voltage and frequency stability of a ship electric power system and improving the comprehensive utilization efficiency of energy.

The invention relates to the technical field of AI computing power scheduling, in particular to an AI computing power sharing scheduling system based on a cloud native architecture, which comprises a data acquisition and convergence module, a resource portrait construction module, a resource efficiency optimization module, an operation and maintenance self-healing module and a closed-loop feedback module, the data acquisition and convergence module is responsible for acquiring cluster dynamic operation data and AI task life cycle data; a resource portrait construction module respectively constructs resource portraits for the computing nodes and the AI tasks based on the data; the resource efficiency optimization module executes a resource optimization decision through a Kubernetes scheduler and a cluster management queue according to the resource portrait; the operation and maintenance self-healing module executes a predictive operation and maintenance decision through a Kubernetes API based on the resource portrait; and the closed-loop feedback module feeds back the execution result of the optimization and self-healing decision as new data to the front-end module, so that continuous updating of the resource portrait and self-optimization of the system are realized, and a complete intelligent closed loop is formed.

Systems, methods, and instrumentalities are configured for NTN-TN idle mode mobility for network energy savings. A WTRU may receive configuration information for a first and second candidate NTN cell, each associated with different orbit types and power sharing statuses. The WTRU may receive a message to perform suitability determinations for these cells, conduct measurements, and determine if the first cell satisfies suitability conditions based on its power sharing status, orbit type, and measurement. Additionally, the WTRU may receive a second message from a TN cell indicating a shutdown, prompting the exclusion of these TN cells from re-selection.

The bagging device for paper diaper production mainly comprises a conveying device, a device bottom table, a storage box, a pushing mechanism, a bag opening mechanism and a heat sealing mechanism, the storage box is designed to be a single-row narrow-interval storage space, paper diapers are arranged in order through a guide plate, a bottom falling opening is matched with a pushing area to ensure quantitative falling, and the packaging effect is good. The material pushing mechanism adopts a linear motion module to drive a material pushing frame, the functions of pushing paper diapers and closing a falling opening are synchronously completed, the bag opening mechanism achieves self-adaptive opening of a bag opening through a one-way lead screw and spring buffering design and is in linkage with the material pushing mechanism, power sharing is achieved through transmission of a worm gear, a worm and a rack, and the material pushing mechanism is in linkage with the bag opening mechanism. The heat sealing mechanism is controlled through a ratchet wheel and a reciprocating lead screw, and heat sealing action is triggered only when the material pushing frame returns. The device realizes automatic quantitative bagging, bag opening and sealing through mechanical linkage, reduces the use of electrical elements, has the characteristics of compact structure, high efficiency and strong adaptability, and is particularly suitable for standardized packaging production of paper diapers.

Systems including a power supply and multiple chips or die, wherein settings may be configured that when applied to a first one of the chips or die configure the first chip or die to associate a power allocation limit with at least a second one of the chips or die, wherein a sum of the power allocation limit and a power consumption limit of the first chip or die exceeds a total power capacity of the power supply. The systems operate the first chip or die at a lower priority than the other chips or die for receiving operating power from the power supply, and the first chip or die is operated as a master controller of allocation of the operating power from the power supply to the first chip or die and to the other chips or die.

The invention relates to dynamic power sharing with power event feedback. Techniques are described for incorporating telemetry related to power source load and frequency of power control events as part of a power balancing algorithm to control electronic device power budget between devices sharing a common power source. The techniques utilize telemetry and control loop algorithms to dynamically balance power between two or more electronic components, which may include CPUs and GPUs. Techniques described herein are used to monitor power source loads and the frequency of a set of predetermined events, which may include performance and / or power control events. Based on this information, the power budget of the device may be dynamically adjusted up or down to maximize performance, which is compared to conventional use of artificial static performance upper limits.

A wireless transmit / receive unit (WTRU) may receive a first set of simultaneous uplink (UL) grants for transmitting first simultaneous transmissions using a first set of two or more beams. The WTRU may transmit a first power headroom report (PHR) including a first power sharing indication. The first power sharing indication may indicate a first power sharing status for the first simultaneous transmissions. The WTRU may receive a second set of simultaneous UL grants for transmitting second simultaneous transmissions. The second simultaneous transmissions may be transmitted using a second set of two or more beams. The WTRU may determine a second power sharing status for the second simultaneous transmissions. The WTRU may transmit a second PHR when the determined second power sharing status is different than the first power sharing status.

The invention discloses a ship energy sharing management method based on multi-mode adaptive droop control. The ship energy sharing management method comprises the following steps: acquiring shipborne micro-grid data; connecting a plurality of electric ships in parallel with a direct-current micro-grid, and constructing a direct-current micro-grid cluster by using the obtained shipborne micro-grid data; and performing multi-mode adaptive droop control on the constructed DC micro-grid cluster, and coordinating a power control strategy of the whole DC micro-grid cluster. And establishing a small-signal analysis model for the direct-current micro-grid cluster to judge the stability of the system. According to the ship energy sharing management method, decentralized power sharing of a micro-grid cluster based on a plurality of electric ship parallel DC micro-grids is realized through multi-mode adaptive droop control, and a power control strategy of the whole micro-grid cluster is coordinated, so that the micro-grids can operate independently and can also provide power support mutually.

The invention relates to the technical field of intelligent network connection automobiles, and discloses a vehicle-mounted computing power sharing system and method, a storage medium and a program product, and the system comprises a control plane network element, a computing power sharing network management center, an intelligent vehicle, a user plane function network element and a unit computing power dispatching center. The control plane network element is in communication connection with the plurality of user plane function network elements, and the one or more unit computing power dispatching centers are in communication connection with at least one user plane function network element; the computing power sharing network management center is used for defining network slices for communication resources contained in the control plane network element and the user plane function network element, distributing the network slices for the unit computing power dispatching center, and creating a corresponding relation between the unit computing power dispatching center and the intelligent vehicle through a unique identifier of the network slices; when the target intelligent vehicle runs into a network coverage range of a target user plane function network element connected with a correspondingly supported target unit computing power dispatching center, the target intelligent vehicle establishes a resource calling session with the target unit computing power dispatching center through a pre-allocated target network slice; and the target unit computing power scheduling center calls the computing power resources of the target intelligent vehicle through the target network slice. According to the invention, the stability and low cost of the vehicle-mounted computing power sharing network can be considered at the same time.

The invention relates to the technical field of mismatch compensation, and discloses a photovoltaic module series mismatch compensation method and device. The method comprises the following steps: performing clustering analysis processing on a synchronous data set to obtain a mismatch feature vector containing a mismatch degree, mismatch distribution and a mismatch scale; performing direct current conversion processing on the mismatch feature vector through an LLC resonant topological structure to obtain a working parameter set of an MPPT controller; performing optimization processing on the working parameter set of the MPPT controller through a PID parameter setting algorithm to obtain a controller configuration scheme including resonant network parameters and switching frequency; carrying out distributed cooperative processing on the controller configuration scheme through power line carrier communication to obtain a multi-controller power balancing strategy; and performing performance evaluation processing on the multi-controller power balancing strategy through a standard working condition test to obtain a system operation parameter optimization scheme. According to the invention, the efficiency and accuracy of series mismatch compensation of the photovoltaic module are improved.

USB charging system and method. For example, a USB charging system includes: a first AC-to-DC conversion unit configured to generate a first voltage and a first current; a second AC-to-DC conversion unit configured to generate a second voltage and a second current; a first USB output port corresponding to the first AC-to-DC conversion unit; a second USB output port corresponding to the second AC-to-DC conversion unit; a switch connected to the first AC-to-DC conversion unit and the second AC-to-DC conversion unit; and a control chip connected to the first AC-to-DC conversion unit and the second AC-to-DC conversion unit and configured to open the switch and close the switch; wherein the control chip is further configured to: determine whether the first USB output port is connected to a load device and whether the second USB output port is connected to a load device.

The invention discloses a repetitive control-based circulating current suppression method between grid-forming type energy storage units, and relates to the technical field of power electronics and control, the method adopts three rings of power, voltage and current to regulate and control a grid-forming type multi-machine parallel inverter, a repetitive controller is introduced into a current inner ring, and the repetitive controller is introduced into a current outer ring to control the circulating current between the grid-forming type energy storage units. The method has the advantages that periodic harmonic current is accurately tracked and suppressed, meanwhile, a narrow-band resonance circuit and LC filter state feedback and pole assignment design are introduced into a current loop, LC filter resonance peaks are effectively eliminated through LC filter state feedback and pole assignment, typical harmonic circulation in a parallel system is further suppressed through the narrow-band resonance circuit, and the harmonic current suppression efficiency is improved. Efficient suppression of circulation among the units and uniform distribution of power are further realized; according to the technical scheme, the stable operation of the system can be guaranteed, the power sharing capability and the grid-connected adaptability of the energy storage unit are improved, a complex distributed communication structure is avoided, and the operation reliability of the network construction type energy storage system in a complex power grid environment is improved.

The invention provides a gear transmission system which comprises a shell, the upper end of the front face of the shell is rotationally connected with a straight gear set, the lower end of the front face of the shell is rotationally connected with a bevel gear set, the bevel gear set and the straight gear set are connected in a meshed mode, and the gear transmission system integrates the efficient heat dissipation function and the intelligent self-lubricating function. Through a closed-loop type lubricating oil circulating cooling structure, heat conduction coil pipes, heat dissipation fins and semiconductor coolers are combined, rapid heat dissipation is achieved, and the temperature of the system is kept stable; and on the basis of real-time monitoring of the liquid level and oil state sensor and intelligent switching of the double electromagnetic valves, lubricating oil is accurately distributed to all parts when the lubricating oil is insufficient or the performance is reduced, and a dynamic oil film is formed to reduce friction. In addition, the system adopts a power sharing design, extra energy consumption is reduced, a self-lubricating heat dissipation mechanism is integrated in the shell, the leakage risk is reduced, a fault safety mechanism further guarantees the operation reliability, the service life of equipment is effectively prolonged, and the maintenance and operation cost is reduced.

The invention discloses a hybrid micro-grid coordination control method based on hierarchical regulation of interconnection converters, which relates to the technical field of power electronics and comprises the following steps of: constructing physical connection among an alternating-current micro-grid, a direct-current micro-grid and the interconnection converters according to a micro-grid group topology model, and configuring a communication network to establish a communication link between adjacent interconnection converters; a distributed secondary control framework under sparse communication topology is established in each independent micro-grid, and the defects of traditional droop control are corrected through a dynamic consistency protocol; a self-adaptive power mutual aid strategy is designed for interconnection converters among micro-grids, dynamic power sharing among micro-grid clusters is achieved, and reliability of power mutual aid is ensured. Through multi-dimensional data fusion and a distributed consistency algorithm, the operating state of the micro-grid is accurately sensed, the adaptability and the communication efficiency are remarkably improved, in the aspect of multi-time scale coordination, collaborative optimization of different time scale control targets is achieved through a hierarchical control architecture and a dynamic optimization algorithm, and the system performance is improved. The dynamic response and the steady-state precision are effectively considered, and the reliability is enhanced through the multi-energy channel design.

Described are systems and methods for monitoring and managing power sharing across multiple loads connected to a shared direct current (DC) bus. Embodiments of the present disclosure may be implemented to monitor and manage power sharing between multiple propulsion mechanisms (e.g., motors) of an aerial vehicle, such as an unmanned aerial vehicle (UAV). One or more shape functions establishing current limits as a function of the DC bus voltage may be determined for each load (e.g., propulsion mechanism / motor) of the multiple loads (e.g., propulsion mechanisms / motors) connected to the DC bus, and the current consumed by each load can be limited based on the DC bus voltage and each shape function.

The invention relates to a renewal processing method and device, electronic equipment and a storage medium, and the method comprises the steps: responding to a first request sent by a first terminal, based on a first account carried by the first request, generating assistance sharing information corresponding to the first account, the first request being used for indicating to cancel the automatic renewal of a virtual asset corresponding to the first account; sending the assistance sharing information to the first terminal, so that the first terminal shares the assistance sharing information to each second terminal; acquiring account use information corresponding to the first account and acquiring power-assisted operation information of each second terminal for the power-assisted sharing information; determining a reduction strategy of the renewal virtual assets according to each piece of acquired power-assisted operation information and account use information; and sending the deduction strategy to the first terminal, so that the first terminal completes renewal of the virtual assets based on the deduction strategy. According to the invention, the renewal saving efficiency of potential lost users and the return rate of platform investment are improved.

The invention relates to the technical field of intelligent network connection automobiles, and discloses an automobile computing power sharing system, a resource scheduling method, a storage medium and a program product, and the system comprises a computing power sharing network management center, a unit computing power scheduling center, a core network control plane and a computing power sharing automobile. The core network control plane serves as a public network control center and is used for establishing communication connection with the computing power sharing automobile, so that the computing power sharing automobile is accessed to a public network; the unit computing power dispatching center is used for generating a computing power task and a computing power demand message; the computing power sharing network management center is used for acquiring the vehicle-mounted computing power resources corresponding to the computing power sharing automobiles from the core network control plane and sorting the vehicle-mounted computing power resources according to the network quality of the vehicle-mounted computing power resources to form a computing power supply queue; the computing power sharing network management center is also used for receiving the computing power demand messages of the unit computing power dispatching centers and sorting the unit computing power dispatching centers according to the priorities of the unit computing power dispatching centers to form a computing power demand queue; and sequentially allocating the vehicle-mounted computing power resource with the highest network quality in the computing power supply queue to the unit computing power dispatching center with the highest priority in the computing power demand queue. According to the invention, the computing efficiency of the computing power task in the vehicle-mounted computing power sharing network is improved.

The application provides a charging pile cluster power sharing control method, system and device, which comprises the following steps: calculating the residual power of the charging pile cluster at the current time according to the total power upper limit of the charging pile cluster at the current time, the total number of charging piles possessed by the charging pile cluster at the current time and the actual output power of each charging pile; calculating the weight of each charging pile in distributing the residual power according to the performance state of each charging pile; and obtaining the power output upper limit of each charging pile at the next time according to the residual power at the current time, the weight of each charging pile and the actual output power. The application can automatically adjust the power output upper limit of each charging pile in real time, thereby improving the equipment utilization rate and load utilization rate of the charging station.

The invention discloses a non-communication power equalization method and system for a network-construction-type inverter parallel system, and relates to the field of network-construction-type inverter control design. The objective of the invention is to solve the problems of non-uniform reactive power distribution during parallel operation of a plurality of grid-forming inverters in an island micro-grid and poor dynamic response and low reliability caused by dependence on PCC point voltage measurement or continuous communication in an existing scheme. The method does not need to collect PCC point voltage and continuous communication, after each inverter records initial reactive power, through two steps of virtual impedance disturbance detection matched with the capacity ratio, total reactive power and expected reactive power are deduced by calculating reactive power variation, and then virtual impedance is corrected in real time through integral adjustment, so that the reactive power is accurately equally divided according to the capacity ratio. The system reliability is improved; and the cost is reduced.

Methods, systems, apparatus for wireless communication are described. One example method includes receiving, by a wireless device, from a network device, configuration information related to a beam power sharing in a serving cell; and making a decision, by the wireless device, based on the configuration information, about a transmission operation or a reception operation of the wireless device.