218 results about "Supply network" patented technology

A converter (2) supplies a load (3) with electrical energy from a supply network (4). Using a desired power (P1*) of the load (3) and a state (Z) of the supply network (4), a control device (9) of the converter (2) determines a power (P2*) to be output by the converter (2) to the load (3). The control device (9) determines, using the power (P2*) to be output, control signals (C, C1, C2) for the converter (2) and controls the converter (2) by means of the control signals (C, C1, C2) such that the converter (2) outputs the power (P2*) to be output to the load (3). The control device (9) determines the state (Z) of the supply network (4) using variables (UZK, a, f) on which the determination of the control signals (C, C1, C2) is based.

The invention discloses an intelligent fire prevention and control and operation and maintenance optimization method and system for an electric power supply network, and the method comprises the steps: collecting temperature, humidity and smoke concentration data in real time through a sensor network, generating a comprehensive environment index data flow, and obtaining a fire initial signal through abnormality judgment; calling a medium selection model, and outputting an optimal environment-friendly insulating medium and release parameters thereof by querying an environment-friendly medium and insulating characteristic parameter library and performing matching calculation based on the equipment type; utilizing a response speed optimization algorithm to generate an accurate release instruction sequence containing a release path, a dose and a time sequence; controlling the medium atomization device to synchronously release the medium according to the instruction; and collecting equipment protection and power supply continuity data, performing risk assessment to generate an efficiency index, and updating the prevention and control strategy library to optimize a subsequent decision. Through intelligent decision making and closed-loop optimization, power supply continuity and equipment safety are guaranteed to the maximum extent while rapid and accurate fire extinguishing is achieved, and transformation from post-disaster disposal to operation and maintenance level prevention and control is completed.

The invention provides a digital twin enabling air-ground integrated dual power supply network supply-demand game method and system, and belongs to the technical field of intelligent management and control of energy and communication convergence networks. Comprising the following steps: constructing a digital twin system of an energy-communication fusion network, and accessing and mapping dynamic data from an energy network and a communication network in real time; based on the dynamic data, an energy side observation space and a communication side observation space are defined in the digital twin system, and the comprehensive supply and demand imbalance degree of the system is calculated; the energy side intelligent agent and the communication side intelligent agent output control instructions in a continuous action space according to respective observation spaces, and respectively aim at maximizing own long-term accumulated benefits; a final solution of the coordinated game framework is an optimal strategy combination meeting a Nash equilibrium condition; carrying out centralized training and distributed execution on the coordinated game framework by adopting a multi-agent depth deterministic strategy gradient algorithm based on supply and demand perception; and the intelligent agent carries out collaborative decision making based on the global supply-demand imbalance degree and local observation.

The object of the present invention is to achieve redundancy of a power supply function by a simple configuration, to ensure operational continuity in case of failure. A power grid (1) comprises: a first power supply path (20-1) that is connected to a main engine-driving power source (100-0) of a vehicle via a power conversion device (101) and to loads (40-1, 41, 42-1) ; and a second power supply path (20-2) that is connected to a power source (100-2) different from the main engine-driving power source (100-0), to loads (40-2, 41, 42-2), and to the first power supply path (20-1) via a switch SW0. The switch SW0 is closed when the first power supply path (20-1) and the second power supply path (20-2) are normal, and is opened when the first power supply path (20-1) or the second power supply path (20-2) is abnormal.

A communication method for artificial intelligence (AI) / machine learning (ML) operations includes a network entity discovering trustworthiness capabilities for analytics and / or models, where a network data analytics function (NWDAF) is enabled to support a model training logic function (MTLF) with trustworthiness capabilities for ML models, the NWDAF is enabled to support an analytics logic function (AnLF) with trustworthiness capabilities for analytics, or a network repository function (NRF) includes trustworthiness capability provisioning per ML model. The network entity can be the NWDAF or a NWDAF consumer.

The invention discloses a composite insulation monitoring equipment cooperative work control system and method suitable for a complex ship power supply network. An acquisition module in the system acquires a state signal of the complex ship power supply network through a digital quantity input signal cable; the control unit is in communication connection with the acquisition module and is used for receiving the state signal and executing cooperative control logic; the output module is in communication connection with the control unit and is connected with an expansion relay through a digital quantity output signal cable, and the expansion relay is used for controlling input or quit of the insulation meter. The on-off state of each circuit breaker and the operation state of each insulation monitor are collected, the input and the output of each insulation monitoring meter are controlled according to a manually set requirement principle, and the condition that one insulation meter continuously works is avoided by setting a certain cycle time and changing the priority among the insulation monitoring meters. According to the control method, various insulation monitoring devices on a certain type of ship can be matched for use, and a continuous and effective power grid insulation state monitoring function is realized.

The invention provides an integrated multichannel pulse modulation type power switch control technology, and a power switch control device with high integration level and high performance is created through a heterogeneous integration technology, a multichannel PWM (Pulse Width Modulation) architecture and an intelligent protection mechanism. Wafer level packaging (WLP) and flip-chip bonding technologies are adopted, a PWM control chip and a GaN / SiC field effect transistor of a CMOS technology and a driver and a protection circuit of a Bipolar technology are integrated in single surface-mounted packaging, the number of external elements is greatly reduced, the space utilization rate of a circuit board is improved, and the overall size is reduced. By optimizing a multi-layer PCB structure and separating a high-frequency signal path from a power supply network, parasitic inductance is effectively suppressed, and the problem of packaging stress caused by difference of thermal expansion coefficients among heterogeneous processes is relieved.

The invention discloses a micro-grid double-layer robust scheduling method based on wind and light prediction error classification, and relates to the field of power supply network scheduling, and the method comprises the steps: collecting the original data of a micro-grid, and the original data comprise photovoltaic wind power historical output data, meteorological data, and photovoltaic wind power prediction data of a prediction system; classifying the wind and light prediction errors by adopting a residual calculation and power decomposition combined classification method to obtain an error classification result; constructing a double-layer optimization architecture, and performing microgrid scheduling optimization according to an error classification result to obtain hour-level optimal scheduling and 15-minute-level optimal scheduling; and introducing a dynamic confidence interval, and regulating and controlling the output range of the diesel engine in the micro-grid according to an error classification result and hour-level optimal scheduling. Compared with a traditional scheduling method, the method can effectively reduce the operation cost, improve the economical efficiency of the micro-grid, promote the commercial popularization of the micro-grid, and provide powerful support for the stable and economical operation of the high-permeability wind and light micro-grid.

The application discloses a novel vehicle-mounted high-low voltage fusion power supply network, comprising: a modular 48V high-voltage energy storage unit, which is composed of N lithium ion battery packs with a nominal voltage of 48V in series, forms a high-voltage DC bus, and each battery pack is integrated with an independent battery management subsystem; a full-isolation three-port DC / DC converter, whose high-voltage input end is connected to the high-voltage DC bus, has two low-voltage output ends that are electrically isolated from each other and completely isolated from the high-voltage side, wherein the first low-voltage output end is a 12V output end, directly connected to a vehicle 12V electrical network, and the second low-voltage output end is a 48V output end, serving as a medium-voltage distribution bus; through modular high-voltage energy storage, full-isolation multi-port power conversion, intelligent power distribution control and hardware-level redundancy design, the architecture completely cancels the 12V lead-acid storage battery, and realizes efficient, safe and bidirectional flow of energy among multiple voltage domains.

During disasters, widespread power outages can occur, leading to delays and shortages in electricity supply. Furthermore, conventional power supply methods rely on fixed infrastructure, making it difficult to flexibly respond to fluctuations in electricity demand. [Solution] The present invention provides a power supply system that deploys or guides mobile distributed power sources to power demand locations based on power demand information relating to power demand locations. The system comprises distributed power sources, a control device, a communication network, and power demand points. The control device determines the placement or guidance of the distributed power sources based on the location information and power output of the distributed power sources and the power output required by the power demand points.

The utility model discloses a clock line magnetic induction chip with address code, magnetic button, scissors foot button and mechanical keyboard, the magnetic induction chip contains programmable address code, the magnetic induction chip integrates magnetic induction circuit, GRB multicolor drive circuit, the magnetic induction chip includes power supply foot, ground foot, data line foot, clock line foot, the power supply foot of n magnetic induction chip is parallel together and shares power supply network VCC, and the ground foot is parallel together and shares ground network GND, and the clock line foot is parallel together and shares clock line network CLK, and the data line foot is parallel together and shares data line network DIO and is connected to MCU, and magnetic data information, GRB multicolor information is transmitted under the cooperation of clock line foot through data line foot, the utility model discloses data line foot under the cooperation of clock line foot transmission information (including magnetic data information, GRB multicolor information), make its application more high time -effect and more reliable.

The application belongs to the field of natural gas supply, and particularly relates to a natural gas supply pipe network double-metering switching and leakage safety cut-off system, which comprises a double-metering switching subsystem and a leakage safety cut-off subsystem; the double-metering switching subsystem comprises a main metering channel module and a standby metering channel module, the main metering channel module and the standby metering channel module are connected with a dynamic data acquisition module, the dynamic data acquisition module is connected with a health degree diagnosis module, the health degree diagnosis module is connected with a historical performance analysis module, and the historical performance analysis module is connected with a dynamic credibility evaluation model; by adopting the main and standby double-metering channels with different measurement principles and combining real-time health diagnosis, historical performance analysis and the dynamic credibility evaluation model, the system can intelligently judge and automatically switch to a more reliable metering data source, so that the metering work is uninterrupted and the data is accurate and reliable when a single channel fails or performance declines.

The invention discloses an industrial control mainboard, a power supply control method, equipment and a storage medium, and relates to the technical field of Ethernet power supply, the industrial control mainboard comprises a PCIe slot electrically connected with a target power supply network card, a boost circuit, a power supply control circuit and a jump cap circuit connected between the boost circuit and the PCIe slot; the power supply control circuit is set to configure the jump cap circuit to be in an Ethernet power supply state when the Ethernet power supply network card is connected with the PCIe slot, so that Ethernet power supply voltage is provided for the Ethernet power supply network card connected with the PCIe slot through a power supply pin of the jump cap circuit; or when the standard equipment network card is connected with the PCIe slot, the jump cap circuit is switched from the Ethernet power supply state to the preset electrical suspension state so as to disconnect the electrical connection between the power supply pin and the PCIe slot, thereby realizing flexible configuration expansion application with low cost and high reliability.

The invention provides an optical storage and charging integrated power station hierarchical optimization scheduling method based on V2G flexibility, and relates to the technical field of new energy power system scheduling, and the method comprises the steps: obtaining the topological connection relation of each charging region in an optical storage and charging station, carrying out the clustering pairing of a power supply sub-network based on a V2G density evaluation value, activating a cross-network V2G scheduling strategy, and carrying out the clustering pairing of a power supply sub-network. And the electric vehicle group in the high V2G density area provides power support for the low V2G density area. Therefore, the problem of non-uniform load distribution between the power supply sub-networks can be effectively relieved, and the utilization efficiency of resources in the power station is improved. Meanwhile, by continuously evaluating the bus voltage data, the scheduling effect is dynamically optimized, and the operation stability of the power grid is improved. In addition, the cross-regional mutual aid capability of the photovoltaic storage and charging integrated power station can be remarkably enhanced, the flexibility of the V2G technology is fully exerted, deep fusion of the electric vehicle and the power grid is further promoted, and therefore the economical efficiency and reliability of overall operation of the power station are improved.

The example embodiments are directed to methods and systems for generating a model of an optimum flow of materials within a supply network based on a relax mixed integer programming model. For example, the method may include generating, via a software application, a model of the supply network based on the data stored in the storage device, executing a MIP optimizer on the model to generate a configuration of a flow of materials within the supply network, wherein the MIP optimizer is instructed to relax discrete constraints within the supply network when generating the configuration, generating a graphical user interface that includes a plurality of graphical objects corresponding to a plurality of locations included in the configuration and directional edges between the plurality of graphical objects corresponding to the flow of the materials between the plurality of locations, and displaying the graphical user interface.

The invention discloses a power supply network region division method and device for IP cores, and a storage medium. The method comprises the following steps: acquiring a position region of a power supply pin of each IP core in a circuit design drawing; the power supply pins comprise a power supply pin and a ground end pin; combining the position areas corresponding to the power supply pins of the same type to obtain a power supply area where the power supply pins are located and a ground end area where the ground end pins are located; and wiring the power supply pins of each IP core based on the wiring mode of the power supply pins in the circuit design drawing, the power supply area and the ground end area. According to the scheme, the power supply network area of the IP core can be automatically and accurately divided, and the design efficiency and accuracy are improved.

The invention provides a distributed power supply method based on multi-component connection, which relates to the technical field of power supply technology, and comprises the following steps: constructing a distributed power supply network according to power utilization component distribution and power supply requirements of a mobile combined device, the distributed power supply network comprising a plurality of independent power supply units, each independent power supply unit correspondingly supplies power to at least one electric component; detachable electric connection among the plurality of independent power supply units and detachable electric connection between the independent power supply units and the power utilization assembly are realized by adopting welding-free connecting joints; the plurality of independent power supply units are synchronously charged or independently charged through the centralized charging interface; according to the invention, the distributed power supply network is constructed, the plurality of independent power supply units are distributed at different positions of the mobile combined device, and each independent power supply unit only supplies power to nearby power utilization components, so that the power supply distance of a single power supply loop is greatly shortened, and the problem of traditional far-end voltage drop is effectively solved.

A game-theoretic long-term scheduling method for an electricity-gas interconnected community integrated energy system includes the following steps: Step 1: Establishing a mathematical model based on the community integrated energy system architecture; Step 2: Constructing a game-theoretic optimal scheduling model for all parties involved in the integrated energy system; Step 3: Solving the game-theoretic optimal scheduling model. In Step 1, the community integrated energy system includes an energy supply end, a community area end, and a user end. The energy supply end includes a natural gas company and a power supply company. The community area end includes gas turbines, gas storage devices, and electrical energy storage devices. The user end includes natural gas access points and electricity access points. The natural gas company connects to the community area end and the user end through the natural gas network. The power supply company connects to the community area end and the user end through the power supply network. At the community area end, gas-to-electricity conversion is achieved through gas turbines.

The invention relates to a method for operating a charger (1) for a motor vehicle, in particular an on-board charger for a motor vehicle, the charger (1) having a multi-phase input connection (3) for connection to a multi-phase supply network connection (4) of an in particular stationary supply network, and a voltage converter (5), the voltage converter (5) has at least one intermediate circuit (13) with at least one intermediate circuit capacitor (14, 15). According to the invention, after the input connection (3) is connected to the supply network connection (4), a first intermediate circuit voltage of the intermediate circuit (13) is detected by means of a voltage sensor (V13) of the intermediate circuit (13) before the intermediate circuit (13) is connected to a neutral phase (N) of the input connection (3) by means of an actuatable switching element (S4), and detecting a second intermediate circuit voltage of the intermediate circuit (13) after the intermediate circuit is connected to the zero line of the input connection; furthermore, on the basis of a comparison of the second intermediate circuit voltage with the first intermediate circuit voltage, it is determined whether the supply network connection (4) has a neutral line connected to the neutral line phase (N).

The invention relates to a method and a suitable device for detecting leakage points in a supply network having a line system through which a fluid is conducted, at different locations (x1, x2,... xN) of the line system, the pressure (p (t)) of the fluid and the volumetric flow rate (V (t)) of the fluid being captured in each case in a time-dependent manner using a measurement technique. The invention is characterized in that the pressure in the line system is regulated at a first location (x1) for a defined first duration (T1) by means of a predeterminable first reference signal (M1), and a curve of the regulated pressure signal and the volume flow signal is determined preferably at the first location (x1), when a time difference ([delta] t1) between the defined signal component of the pressure signal and the defined signal component of the volume flow signal is detected, a first distance from the leakage point to the first location (x1) is determined from the time difference ([delta] t1). The method according to the invention and the correspondingly designed device can be used in particular for detecting existing leakage points in supply networks.

Charging infrastructure (6) for charging at least one electrically powered or motorizable motor vehicle (8), comprising at least one charging network (10, 10a, 10b, 10c, 10d, 10e, 10f) with a number of charging columns (14) as charging points, - wherein the charging stations (14) are interconnected by means of an island network (16, 16a, 16b, 16c, 16d, 16e, 16f), - wherein the island grid (16, 16a, 16b, 16c, 16d, 16e, 16f) is coupled or can be coupled to an external supply network (18) and / or an energy generator (30), - wherein the charging network (10, 10a, 10b, 10c, 10d, 10e, 10f) has at least one battery storage unit (12) as an electrical buffer storage unit, - wherein the charging stations (14) of the charging network (10, 10a, 10b, 10c, 10d, 10e, 10f) are designed as a master charging station (32) and at least one slave charging station (34) coupled to it by signal technology, - wherein the master charging station (32) has a first voltage converter (36) as an interface between the island grid (16, 16a, 16b, 16c, 16d, 16e, 16f) and the supply grid (18), as well as a controller (38) as the central control unit of the associated charging network (10, 10a, 10b, 10c, 10d, 10e, 10f), characterized in that at least two charging networks (10, 10a, 10b, 10c, 10d, 10e, 10f) are coupled to each other via an extension point (24) in such a way that a common island grid (16) is formed.

An electrically powered motor vehicle (135) comprises an electrical energy storage device (140). A charging station (130) for such an energy storage device (140) comprises a first power connection for connecting to the motor vehicle (135) and a second power connection for connecting to a fixed local network (110). The local network (110) is connected to a power supply network (105). Furthermore, the charging station (130) comprises a data connection (170) for connecting to a billing meter (120) for electrical energy exchanged between the local network (110) and the power supply network (105); and a communication device (192) for transmitting the energy determined by the billing meter (120) to an external location (188).

The present application relates to the technical field of intelligent control, and discloses a power plant low bypass steam direct heating network circulating water dynamic shunting system, comprising: a data acquisition module, which is used for collecting power plant operation parameters and heating network demand parameters in real time; a model solving module, which is used for inputting the collected parameters into a preset multi-objective optimization model, and obtaining an optimal steam shunting ratio through online calculation of the model; an instruction generation module, which is used for converting the optimal steam shunting ratio into real-time control instructions for a shunting regulating valve group; an execution adjusting module, which is used for adjusting the shunting regulating valve group according to the control instructions, dynamically changing the flow of low bypass steam injected into the heating network circulating water, and discharging the remaining steam according to the original bypass system; and a safety monitoring module, which is used for independently monitoring key safety parameters, and when a safety threshold is exceeded, interrupting the main control process and executing a preset highest priority safety interlocking action. Under the premise of guaranteeing the heating quality of the heating network, the economic benefits of low-grade waste heat recovery are maximized.

A plant network has an electrolysis plant, a power supply source, and a central supply line connected to a DC voltage output of the power supply source for feeding a direct current into the central supply line. The electrolysis plant is connected to a central DC network for a high voltage via the central supply line. The power supply source has a wind turbine as a power generator and a rectifier with a DC voltage output for the high voltage. An energy storage system can feed a direct current into the central supply line. A DC supply network controls three different DC voltage levels independently, namely, a first DC voltage for charging and discharging an electrical storage battery of the energy storage system, a DC-Bus high voltage on the central supply line, and a DC operating voltage of the electrolysis plant.

The present application relates to the technical field of computing power load prediction, and discloses a load dynamic prediction and evaluation method for computing power-electricity deep coupling, obtains a multi-dimensional computing power operation parameter set of a target computing power cluster, obtains an electricity state parameter set of a matched electricity supply network, constructs a computing power-electricity coupling correlation mapping model according to the multi-dimensional computing power operation parameter set and the electricity state parameter set, performs rolling prediction on the computing power load demand of the target computing power cluster in a continuous time window, generates an initial load prediction sequence group, determines the computing power supply-demand balance degree, the electricity cost sensitivity and the resource utilization efficiency of a prediction result unit, generates a three-tuple evaluation index structure, performs confidence screening on the initial load prediction sequence group, obtains a credible load prediction sequence set, inputs a dynamic feedback adjustment framework, generates a power supply adjustment suggestion strategy, and improves the cooperative operation level of a heterogeneous computing power cluster and a diversified electricity system under the premise of ensuring the prediction accuracy and the real-time regulation.

This disclosure provides a method, apparatus, equipment, medium, and program product for managing goods. It can be applied to the field of smart supply chains. The method includes: acquiring transaction information of a target item within a historical time period; determining the turnover speed level of the target item based on the total number of transactions and the transaction resource range in the transaction information; matching a dynamic supply network corresponding to the target item from a warehouse network planning database based on the turnover speed level, wherein the dynamic supply network includes multiple supply nodes, and the warehouse network planning database includes dynamic supply networks corresponding to fast, medium, and low turnover speed levels respectively; predicting the demand for goods at each supply node based on the transaction volume of the target item at each supply node, obtaining a prediction result; and determining the procurement information for each supply node based on the prediction result and the procurement parameters of the supply node, so as to manage the target item based on the procurement information.

The invention discloses a main and distribution network fusion method and system based on active power distribution network modular modeling, and the system comprises an active power distribution network modular modeling module which is used for carrying out the topology analysis of a power supply network of an active power distribution network, and automatically generating a detailed power supply network small system simulation model and an equivalent load simulation model of a 220kV transformer substation below a 110kV bus side; the main and distribution network model mapping relation dictionary management module is used for establishing a mapping relation dictionary among a transformer substation name in an offline simulation calculation model adopted by main network simulation, a transformer substation name in an online simulation calculation model adopted by load modeling, a 110 kV / 35 kV transformer substation, a distribution line and a load node name; the main distribution network model fusion module is used for automatically splicing the detailed power supply network small system simulation model or the equivalent load simulation model of the active power distribution network with the main network simulation calculation model; the main and distribution network joint simulation solving module is used for performing main and distribution network integrated joint simulation analysis; and the precision, efficiency and flexibility of joint simulation of the main network and the distribution network are improved.

An energy distribution system is provided that includes a first AC bus; a second AC bus for connecting to at least one second AC load; a third AC bus for connecting to a supply network; a transformer that converts an alternating voltage of each of the first to third AC buses into an alternating voltage of each of the other of the first to third AC buses; a DC bus; an energy storage device connected to the DC bus; and a bidirectional AC-DC power converter that is connected between the first AC bus and the DC bus.