110 results about "Power setting" patented technology

The invention discloses an aggregation regulation and control method and system for multiple virtual power plants, and relates to the technical field of intelligent power grid regulation and control, and the method comprises the steps: enabling a trust anchor to synchronize a link health abstract and preset a safe operation envelope and an autonomous rule when the communication is normal; after link disconnection is detected, an autonomous mode is immediately switched to generate power setting; during the autonomous period, recording power deviation and events and generating a hash track; after the link is recovered, two-way identity verification is completed through quantum key handshake, then a fingerprint set and sparse differences are uploaded, and latest global constraints are received; an aggregation composer reconstructs a system model based on a constraint relaxation matrix and a compensation weight vector, generates an optimized power instruction, smoothly replaces an autonomous instruction with a slip coefficient, recursively allocates spare capacity, and finally realizes the transition from autonomous smooth transition to unified scheduling of each virtual power plant; the method gives consideration to toughness, integrity, fairness and safety, and significantly and integrally improves the distributed energy regulation and control reliability and recovery efficiency.

The invention discloses a grid construction type new energy fault ride-through method and system for realizing amplitude-phase stability, and the method comprises the steps: obtaining a power grid voltage amplitude and a deviation phase angle relative to the steady-state power grid voltage based on the power grid voltage after the fault when a power grid breaks down; performing power setting based on a power angle of the system in a steady state, the power grid voltage amplitude and the deviation phase angle to obtain an active power reference value and a reactive power reference value; and performing network construction type control based on the active power reference value and the reactive power reference value to realize fault ride-through. According to the fault ride-through method, the fault ride-through of the network construction type new energy can be realized only by adjusting the power reference value of the control link, only the control link needs to be added at the network construction type control front end, the change of the original network construction control link is reduced, the realization difficulty is low, and the fault ride-through strategy does not need to add a current loop in the network construction type control link, so that the fault ride-through efficiency is improved. Compared with the traditional fault ride-through control based on current, the control response speed and stability of the network construction type new energy are improved.

The invention discloses a multi-energy complementary coordination control system and coordination control method based on mixed water and light storage. The system comprises a data acquisition unit, a data storage unit, a coordination control unit, an optimization scheduling unit and a telecontrol communication unit. The data acquisition unit is in data connection with the hydropower station, the photovoltaic power station and the energy storage system; the coordination control unit is in communication connection with the data storage unit; the optimal scheduling unit is in communication connection with the coordination control unit; and the telecontrol communication unit is used for issuing the active power setting instruction generated by the coordination control unit and the optimization scheduling unit to the hybrid hydropower station, the photovoltaic power station and the battery energy storage system. According to the method, active power control with real-time performance, coordination and robustness is realized, the consumption capability of new energy is improved, and the impact of new energy access on power grid operation is relieved.

The embodiment of the invention provides a power information configuration and acquisition method and device, and the method comprises the steps: transmitting the power information and / or path loss information of one or more frequency domain units to a second node, and can solve a problem that a receiver needs an extra time-frequency resource to adjust the power setting. By directly notifying the second node of the power information and / or the path loss information, it is ensured that data of one or more carriers can be correctly received without consuming extra time-frequency resources for power setting.

The invention provides a power flow convergence method and system based on direct current power flow preprocessing and staged decoupling, and belongs to the field of power system analysis and control. Comprising the following steps: performing multi-stage verification and parameter adjustment on original power flow data, executing active balance preliminary verification of a power system, and generating a node active power set initial value set; setting an initial value set based on the active power of the nodes to carry out direct-current power flow calculation, obtaining an initial phase angle of each node, identifying a heavy-load line with a power angle difference exceeding a preset threshold value, and carrying out adjustment to obtain initial phase angle distribution; in combination with a preset initial voltage amplitude and the initial phase angle distribution, performing staging decoupling load flow calculation and adjustment to obtain load flow parameters; and taking the power flow parameter as an initial value, and carrying out full-coupling power flow calculation to obtain a final power flow solution meeting the convergence precision requirement. According to the method, the physical root of the convergence problem can be intelligently diagnosed and positioned, and the convergence and robustness of load flow calculation under complex working conditions are effectively improved through small-range targeted adjustment.

The invention relates to a unified distributed dynamic optimization control method and device for a micro-grid in an autonomous station area, and the method comprises the steps: embedding a frequency regulator at a virtual synchronous converter, estimating the average frequency of the autonomous micro-grid through the frequency regulator, comparing the average frequency with a rated frequency to generate an error term, and calculating the optimal value of the error term; inputting the error term into an integrator to obtain a first power correction term; embedding a benefit optimizer at the virtual synchronous converter, generating a neighborhood error through the benefit optimizer, and inputting the neighborhood error into an integrator to obtain a second power correction term; and adding the first power correction item and the second power correction item with a reference power item to obtain a power setting item, and taking the power setting item as the input of the virtual synchronous converter. According to the invention, stable voltage and frequency support can be provided, and global optimal control is realized.

The invention provides an extra-high voltage hybrid direct current transmission fault recovery optimization control method, device and equipment, and relates to the technical field of extra-high voltage hybrid direct current transmission. The system comprises a plurality of sending end converter stations and a plurality of receiving end converter stations, and the plurality of receiving end converter stations are connected to different alternating current systems in a layered manner; the method comprises the following steps: when a receiving end has a fault, obtaining a sub-module capacitor voltage of a target receiving end converter station; based on the sub-module capacitor voltage and a preset sub-module capacitor rated voltage, calculating a power unbalance amount of the target receiving end converter station; and determining an active power setting value of the target receiving-end converter station based on the direct-current side input power and the power unbalance amount of the target receiving-end converter station, and controlling the target receiving-end converter station based on the active power setting value. According to the method, the fault degree can be prevented from being further deepened, so that the fault recovery speed of the hierarchical access system is accelerated.

A continuity detector for determining the continuity of a Unit Under Test (UUT). The detector comprises a housing defining an interior volume, an electronics package disposed within the interior volume defined by the housing assembly, a first test contact and a second test contact to interface with the electrical wire or harness assembly, a precision resistance standard disposed within the housing and electrically coupled to the electronics package, and a power source disposed within the housing assembly. The first test contact and the second test contact are external to the interior volume. The first test contact and the second test contact are electrically coupled to the electronics package. The electronics package comprising a resistance measurement device and a comparator circuit. The comparator circuit is configured to determine if the resistance of the UUT is greater than, less than, or equal to the resistance of the resistance standard.

Methods and systems are disclosed for reducing power consumption of refrigerated display cases with electronic door displays. A door system for a refrigerated display case includes: a movable door configured to provide access to the refrigerated display case; an electronic display mounted to the movable door; a sensor; at least one processor in electronic communication with the sensor and the electronic display; and a data store coupled to the at least one processor having instructions stored thereon which, when executed by the at least one processor, causes the at least one processor to perform operations comprising: receiving, from the sensor, data indicating a position of the movable door; and in response to receiving the data indicating the position of the movable door, adjusting a power setting of the electronic display.

A signaling system includes a pre-emphasizing transmitter and an equalizing receiver coupled to one another via a high-speed signal path. The receiver measures the quality of data conveyed from the transmitter. A controller uses this information and other information to adaptively establish appropriate transmit pre-emphasis and receive equalization settings, e.g. to select the lowest power setting for which the signaling system provides some minimum communication bandwidth without exceeding a desired bit-error rate.

1. Name of the product in this design: Graphical User Interface for Lighting Control Operation of Electronic Equipment. 2. Purpose of this design: An electronic device. 3. The key design features of this product are the graphical user interface content on the screen. 4. The picture or photo that best illustrates the key design points: Design 1 front view. 5. Electronic devices are designed in a conventional way, so the rear view, left view, right view, top view, and bottom view of each design are omitted. 6. Design 1 is designated as the basic design. 7. Purpose of Graphical User Interface: Graphical user interfaces are used for the control and operation of lighting equipment. The main view of Design 1 is the main interface for menu settings. Click the "Power and Output" icon in the middle of the main view of Design 1 to enter the interface change state diagram 1; click "Maximum Power Setting" in the interface change state diagram 1 to enter the interface change state diagram 2; click "AC Power" in the interface change state diagram 2 to enter the interface change state diagram 3; click the numerical label on the right side of the interface change state diagram 3 to enter the interface change state diagram 4; click "OK" in the interface change state diagram 4 to complete the settings. The interface interaction from the main view of Design 2 to the interface change state diagram 2 is the same as the interface interaction operation from the main view of Design 2 to the interface change state diagram 2; click "Lamp Cable" in the interface change state diagram 2 to enter the interface change state diagram 3 of Design 2; click the numerical label on the right side of the interface change state diagram 3 to enter the interface change state diagram 4 of Design 2; click "OK" in the interface change state diagram 4 of Design 2 to complete the settings.

The invention relates to the technical field of energy storage converter testing, and aims to solve the problems that a traditional test needs to be disassembled and is low in efficiency. The method comprises the following steps: directly connecting a communication cable with a configuration screen through an exposed RS-485 (Recommend Standard 485), a CAN (Controller Area Network) bus or an Ethernet interface of the energy storage converter, and establishing a non-intrusive closed-loop communication link; the configuration screen issues control instructions such as start and stop, power setting, operation modes and the like, synchronously collects alternating current and direct current side electrical parameters, temperature and fault information of the energy storage converter, and automatically judges a test result after visual display and data processing. According to the method, disassembly or additional hardware is not needed, operation is convenient, multiple communication protocols are compatible, manual testing, automatic multi-working-condition testing and fault diagnosis can be achieved, the method is suitable for production delivery, operation and maintenance inspection and other scenes, the testing efficiency and consistency are greatly improved, and the testing safety and accuracy are guaranteed.

The present invention provides a method and system for controlling the opening of a turbine governor. The method comprises the following steps: obtaining water head data, a frequency signal, and an initial PID control signal of the turbine; generating a difference correction coefficient by combining the water head data and a preset power setting; correcting the initial difference coefficient preset in the turbine using the difference correction coefficient to obtain an adjustment difference coefficient; generating an adjustment PID control signal by combining the frequency signal, the initial PID control signal, and the adjustment difference coefficient; generating an opening control signal by combining the water head data, the power setting, and a preset opening setting; and superimposing the adjustment PID control signal with the opening control signal to generate a control signal for the turbine. The present invention eliminates the need to set a dead zone for power or opening regulation and solves the problem that a single frequency regulation may not operate or operate incorrectly under small frequency differences.

A power manager of an apparatus exposes an application programming interface (API) usable to specify priority and quality-of-service (QoS) parameters (e.g., latency, throughput) for a workload. An application, for instance, specifies the priority and QoS parameters for a workload to be processed using a hardware compute unit. The priority and QoS parameters are employed by the power manager as a basis to configure the power setting of a hardware compute unit. In particular, resource prioritization is extended to both real-time and best-effort workloads to satisfy specified QoS parameters for inference workloads.

The present invention discloses a method and system for collaborative optimization of intelligent master control and frequency regulation of power systems, which relates to the technical field of automated control of power systems. The method comprises the following steps: constructing a deviation function based on the real-time collected grid frequency; determining the primary frequency regulation response power based on the frequency deviation and the unit regulation parameters; dynamically superimposing the primary frequency regulation response power with the power setting value of the automatic power generation control to form a comprehensive power instruction; and dynamically adjusting the weight ratio of the primary frequency regulation and the automatic power generation control. By collaboratively optimizing the regulation actions of the primary frequency regulation and the automatic power generation control, the present invention can provide a faster response when the frequency fluctuation is large, and optimize the unit power regulation when the frequency fluctuation is small, thereby avoiding the conflict and inefficiency caused by the inconsistent regulation time scales of the two in the traditional method. This not only improves the frequency regulation accuracy of the system, but also enhances the dynamic response capability of the system.

Methods and systems are disclosed for reducing power consumption of refrigerated display cases with electronic door displays. A door system for a refrigerated display case includes: a movable door configured to provide access to the refrigerated display case; an electronic display mounted to the movable door; a sensor; at least one processor in electronic communication with the sensor and the electronic display; and a data store coupled to the at least one processor having instructions stored thereon which, when executed by the at least one processor, causes the at least one processor to perform operations comprising: receiving, from the sensor, data indicating a position of the movable door; and in response to receiving the data indicating the position of the movable door, adjusting a power setting of the electronic display.

An apparatus, system, and method are disclosed for automatically controlling a power setting of a power supply unit (PSU). The apparatus includes a processor and non-volatile memory having a switch configured to instruct the PSU to operate in a first overcurrent protection (OCP) mode.

The invention relates to an automatic control method for a network-related test of an energy storage system, and the method comprises the steps: analyzing a structured configuration file, storing a test identifier, total instruction delay time, and power setting values and duration parameters contained in each power setting stage into a predefined data structure, and after a test starting instruction is received, starting the test starting stage according to the test starting instruction. Performing initial delay according to the total instruction delay time, entering a power setting cycle, sequentially reading a power set value and a duration parameter corresponding to a current power setting stage from a predefined data structure, and sending the read power set value to a control system of the energy storage system, s4, the power setting stage is executed, delay waiting is carried out according to a duration parameter corresponding to the power setting value, whether all power setting stages in the predefined data structure are executed or not is judged, if not, the step S4 is executed, the next power setting stage is read and executed, and if yes, the test process is ended.

Methods and systems are disclosed for reducing power consumption of refrigerated display cases with electronic door displays. A door system for a refrigerated display case includes: a movable door configured to provide access to the refrigerated display case; an electronic display mounted to the movable door; a sensor; at least one processor in electronic communication with the sensor and the electronic display; and a data store coupled to the at least one processor having instructions stored thereon which, when executed by the at least one processor, causes the at least one processor to perform operations comprising: receiving, from the sensor, data indicating a position of the movable door; and in response to receiving the data indicating the position of the movable door, adjusting a power setting of the electronic display.

The application discloses a multi-source low-temperature waste heat self-adaptive grid-connection optimization method based on electric-thermal cooperative scheduling, relates to the technical field of energy management, and comprises the following steps: according to a dynamic weight coefficient, a node marginal electricity price and a real-time power generation instruction, an economic objective function and a carbon emission objective function are established, multi-objective cooperative optimization is carried out, and a power setting value of a power generation device is generated; power generation operation is carried out based on the power setting value of the power generation device, hierarchical control instructions of a heat pump and a heat exchanger are generated, equipment operation state parameters are collected to construct a digital twin, and an actual heating load value is generated through a compensation algorithm; and the deviation between the actual heating load value and a heat network load prediction curve is used to update global federated learning model parameters.The application realizes high-dimensional space-time modeling of a nonlinear coupling relationship between economy and a carbon emission target, and breaks through the technical limitation that it is difficult to respond to real-time fluctuations of an electricity price and a carbon price.

The present invention provides a control device (10) for a secondary battery (110) that can limit the power value of the secondary battery (110) per unit time without excessively limiting the allowable power value of the secondary battery (110). The control device (10) for the secondary battery (110) includes an allowable power setting unit (421) and an allowable power limiting unit (422). The allowable power setting unit (421) sets an allowable power value for the secondary battery (110) during at least one of discharging and charging, based on specified information of the secondary battery (110). The allowable power limiting unit (422) limits the power value before the power value of the secondary battery (110) reaches the allowable power value. The allowable power limiting unit (422) limits the power value in stages at two or more different ratios.

The application relates to the field of communication devices, and discloses a signal collection device for a base station communication equipment testing device, which comprises a base, a collection mechanism arranged at the top end of the base, an angle mechanism rotatably connected to the top end of the base, a pitching mechanism arranged at the top end of the collection mechanism, a protection mechanism arranged outside the collection mechanism, and a linkage mechanism arranged between the angle mechanism and the protection mechanism; the collection mechanism is designed to be flexible and retractable, thereby improving the field survival capability; the protection mechanism is arranged to facilitate protection of the device in an emergency environment; the linkage mechanism is a connecting channel arranged between the angle mechanism and the protection mechanism, which facilitates operation of the protection mechanism when the collection mechanism is adjusted, and reduces the redundant power setting of the device; when not working, all components are protected in all directions; when working, the linkage mechanism can disconnect the angle mechanism and the protection mechanism, thereby reducing the power load when the angle mechanism operates, and making the power more sufficient when being adjusted.

The application discloses a variable-speed unit primary frequency modulation method based on power setting value correction, which comprises the following steps: obtaining real-time operation parameters of a target variable-speed unit; a converter of the target variable-speed unit calculates an electromagnetic power variation corresponding to a primary frequency modulation action; a control amount of a mechanical hydraulic system of the target variable-speed unit is calculated and input into the mechanical hydraulic system to obtain a mechanical hydraulic control amount; and the primary frequency modulation of the variable-speed unit is completed according to the electromagnetic power variation and the mechanical hydraulic control amount. The application further provides a system for implementing the variable-speed unit primary frequency modulation method based on power setting value correction. The variable-speed unit primary frequency modulation method and system based on power setting value correction provided by the application not only realize the primary frequency modulation of the variable-speed unit, but also have the advantages of fast frequency modulation speed, high reliability, good practicability and good frequency modulation effect by virtue of the innovative control strategy design.

A multi-channel amplifier system for power supplies with specific power output ratings. The system includes first and second output channels, each containing a power amplifier, an adjustable voltage limiter, and an adjustable impedance circuit. A constraint controller with predefined partial power settings is able to adjust the voltage or impedance based on specific constraint patterns. Power distribution balance between output channels is regulated by a multi-contact switch. Real-time data of the output channels is acquired by a sensing system including temperature, current, and voltage sensors, allowing dynamic adjustments within predefined ranges. The system also integrates an input signal digital signal processor (DSP) compressor or limiter that works in conjunction with a microcontroller to limit audio signals based on specified thresholds. This innovative design enables efficient and adaptive power distribution without the need for a graphical user interface, making it ideal for various audio applications.

The invention relates to power saving operation and AP behavior for Coex unavailability. Methods and apparatus for transmitting data in a wireless local area network are envisaged. In an embodiment, a first wireless device (AP) is configured to transmit a data packet to a second wireless device (STA), and transmit an initial control frame (ICF) to the STA, the ICF indicating a transmit opportunity time period (TXOP) for data transmission from the first wireless device to the second wireless device. In response to the ICF, the second wireless device returns an initial control response (ICR) indicating an unavailability (e.g., Coex unavailability) period of time. Alternatively, the STA may transmit an unsolicited unavailability advertisement (UUA) containing unavailability information for the STA to the AP without a prompt. In response to receiving the ICR or UUA, the AP may modify a transmission plan, such as shortening or cancelling the TXOP, or transmitting a portion of the data to another STA, etc. A power setting may be determined based on the unavailability time period.

A user equipment (UE) may receive a configuration message including a configuration for transmitting a set of positioning signals associated with a plurality of transmit (Tx) power settings. The set of positioning signals may include a first subset of positioning signals and a second subset of positioning signals. The UE may transmit a first subset of the positioning signals using a first Tx power setting of the plurality of Tx power settings. The UE may transmit a second subset of the positioning signals using a second Tx power setting of the plurality of Tx power settings.

The application discloses a power supply circuit, a power supply method, a server, a product and a medium, relates to the technical field of server power supply, and disperses the total power demand of a server through a multi-power board parallel design, reduces the bus current of a single board connected to a first voltage to the safe bearing range of a MOS tube, reduces the risk of impact, matches the overcurrent protection threshold of an electronic fuse with the power setting of a single board, shortens the short-circuit protection response time, independently deploys power supply bricks for each board to realize local conversion of a second voltage, reduces the output current of a single board, combines a multi-board output end merging power supply design, disperses heat sources to eliminate accumulated heat and doubles the current passing capacity through a parallel path, and improves the heat dissipation and electrical design feasibility of a circuit board. The technical problems of MOS tube over-limiting, overcurrent protection delay, and circuit board heat accumulation and current passing difficulty caused by large current of a power supply in a high-power server are solved, and the technical effects of enhancing power supply reliability and optimizing energy efficiency are achieved.

This invention relates to an automatic servo testing system and method based on a programmable power supply. The testing system includes a host computer module providing a testing software interface; an automatic power supply start-up and test information setting module for reading and storing power supply and test setting information; an automatic power supply on / off control module for automatically controlling the power supply and control power supply; an automatic command sending and feedback acquisition and processing module for acquiring test command types and command cycles, sending test commands, and judging and extracting received feedback data; an automatic fault judgment and processing module for periodically querying the status of the control power supply and power supply, querying and judging feedback data in real time, and receiving and judging position feedback in real time; and an automatic process monitoring and processing module for automatic real-time monitoring. This invention solves the problems of high manpower requirements, low automation, slow fault handling, and low safety and reliability in existing servo product testing.

The invention relates to the technical field of infrared sensing, in particular to an infrared emission control method and device and an automatic door, and the method comprises the steps that an infrared emission head is controlled to emit an infrared emission signal, the infrared emission signal comprises a plurality of emission pulse segments, and one emission pulse segment corresponds to one emission power; acquiring the pulse receiving number of the transmitted pulse segments received by the infrared receiving head; whether the pulse receiving number meets a power setting condition or not is judged, and the power setting condition is that the pulse receiving number is a preset receiving number; and if the judgment result is yes, setting each transmitting power corresponding to the infrared transmitting signal as the current transmitting power, and controlling the infrared transmitting head to work based on the current transmitting power. The problem that in the prior art, when an automatic door is controlled based on infrared emission, misjudgment is likely to be generated due to improper infrared emission power control can be solved.