74 results about "Overload control" patented technology

The invention relates to the field of transformer overload control, in particular to a method and system for dynamically evaluating the overload capacity of a transformer, and the method comprises the steps: firstly, precisely extracting load step features and eliminating interference through a high-precision collection and sliding window differential verification technology; then, operating a finite-state machine based on a fluid dynamics principle, and switching among three modes of steady-state coupling, inertial decoupling and linear recovery according to load change; especially, a decoupling mode is entered during load impact, adiabatic temperature rise is utilized to deduce and replace lagged actually measured top oil temperature, and the problem of calculation distortion of a traditional model during oil flow lagging is effectively solved. In addition, the system executes double-thread calculation of the standard model and the inertial sensing model in parallel, outputs the final hot spot temperature through the maximum arbitration logic, and deduces the remaining allowable operation time according to the final hot spot temperature so as to generate a protection control signal. According to the invention, the evaluation accuracy and the operation safety of the transformer under the short-time overload condition are obviously improved.

The embodiment of the invention provides a power distribution cabinet intelligent spare power switching and overload management and control method and system, and the system comprises a multifunctional instrument which is used for detecting the current and voltage of an incoming line of a current system and a circuit breaker position contact signal, and carrying out the output of detection data based on a preset communication protocol and a preset communication standard; the programmable logic controller is in communication connection with the multifunctional instrument, and is used for identifying and reading the detection data of the multifunctional instrument, executing spare power switching based on the detection data, and determining whether to unload the three-level load of the transformer or not to generate and output a control instruction based on the current load of the transformer and a preset load threshold value; and the touch screen man-machine interface is in communication connection with the programmable logic controller and is used for responding to the control instruction to switch among different control modes and reserving the IP address setting of the multifunctional instrument and the removal configuration function of the three-level load. The system improves the intelligent control level and the operation and maintenance efficiency of the power distribution system.

The invention discloses a regulation and treatment method for reverse heavy overload and overvoltage of an active transformer area, the transformer area is connected with a plurality of distributed photovoltaic inverters, and the method comprises the following steps: configuring an acquisition period according to the access scale and operation characteristics of the distributed photovoltaic inverters in the transformer area, periodically collecting operation parameters of the transformer area and operation parameters of each distributed photovoltaic inverter; the transformer area operation parameters at least comprise distribution transformer capacity, total active power and maximum outlet voltage, and the distributed photovoltaic inverter operation parameters at least comprise active power, reactive power, real-time voltage and operation state; the regulation and control modes are started according to the priority sequence, the priority is divided into a reverse heavy overload regulation and control mode, an overvoltage regulation and control mode and a power recovery regulation and control mode from high to low, after a regulation and control instruction is issued every time, a new round of operation parameter collection is triggered immediately, the grading mode regulation and control are started, and a regulation and control closed loop is formed.

The invention discloses an anti-overload control method for a motor lifting stereo garage, and belongs to the technical field of stereo garages, a lifting motor is connected with a current sensor for collecting real-time current of a system, a control unit corrects an original current value through a linear formula y = KX + m, X is a real-time current value, K is a correction coefficient corresponding to a motor and a transmission mode, and m is a positive integer; m is used for representing the transmission efficiency error of a steel wire rope and a chain in a motor transmission type garage, and the control unit judges the state of the vehicle carrying plate according to the corrected standard current value y and the comparison threshold value range; when the threshold value is A, judging that the vehicle carrying plate is in a no-vehicle state; when the threshold value is Alt; yt; Yt; when the threshold value is B, determining that the vehicle carrying plate has a vehicle state; when ygt; according to the invention, the technical problems of complex structure and high cost of a traditional detection system are solved, and the system is widely applied to electromechanical stereo garages.

This invention proposes a method and system for electrothermal coordination overload control of grid-connected wind power systems. The method involves acquiring current measurements of the transmission components and wind farm of the grid-connected wind power system; predicting wind speed based on meteorological data; obtaining the temperature of the transmission components; and predicting the active power of the wind farm within a set time step of the current control cycle. Considering the predicted wind speed, transmission component temperature, and wind farm active power, an optimization problem is established based on the electrothermal coordination model of the grid-connected wind power system. Process-oriented electrothermal coordination control is then implemented to ensure that the temperature of the grid-connected line does not exceed limits during overload control. The optimization problem is solved under constraints to determine the optimal control sequence. The active power of the first wind farm group in the optimal control sequence is applied to the current wind farm's power generation control. This invention uses the maximum allowable temperature of the transmission components as a limit to dynamically coordinate and continuously optimize the wind farm output and the temperature of the external transmission components in the grid-connected system. Compared to traditional overload control methods, this method can further tap the overload potential of the external transmission components, which is beneficial for alleviating the contradiction of wind energy consumption.

This invention discloses an online maintenance and overload control method for multi-source IDS alarm correlation tracing graphs in vehicles. Rule-based intrusion detection systems (IDS) are deployed in the vehicle host domain, vehicle Ethernet domain, and Controller Area Network (CAN) to generate alarms. At the vehicle gateway electronic control unit (ECU) side, multi-source alarms undergo event standardization, sliding time window buffering and waterline out-of-order tolerance, deduplication aggregation, and indexed candidate retrieval. Under the condition of satisfying alarm correlation judgment rules, a directed alarm tracing graph is incrementally constructed. By suppressing forks and overloads through in / out-degree limits, node / edge budgets, and priority pruning, combined with two-stage expiration recycling and tracking record solidification, stable alarm correlation and tracing are achieved under resource-constrained conditions. This method can be used for real-time tracing and offline forensic analysis on the vehicle side.

A method for HTTP stream tuning during load and overload control includes determining a load / overload level at a first network node (NF). The method further includes determining an initial value for the HTTP SETTINGS_MAX_CONCURRENT_STREAMS parameter. The method also includes publishing the initial value of the HTTP SETTINGS_MAX_CONCURRENT_STREAMS parameter to a second network node (NF) sending traffic to the first NF. The method further includes determining that the load / overload level of the first NF has changed. In response to determining that the load / overload level has changed, the method further includes adjusting the value of the HTTP SETTINGS_MAX_CONCURRENT_STREAMS parameter based on the load / overload level and the direction of the change. The method also includes publishing the adjusted value of the HTTP SETTINGS_MAX_CONCURRENT_STREAMS parameter to the second NF.

The present application provides a resource management method and apparatus, and a device. The method comprises: for each resource object comprising at least one resource identification point, acquiring load data of each resource identification point, the load data representing resource usage of the resource identification point; on the basis of the load data of each resource identification point, determining a load level of the resource object; on the basis of the load level, determining an overload control object, the overload control object comprising at least one of: a background task of the resource object, a foreground service object of the resource object, and a token bucket object for backpressuring host IO; and controlling resources occupied by the overload control object. By means of the technical solution of the present application, a current load can be prevented from exceeding the maximum processing capacity of a distributed storage system, and the operational stability and service reliability of the distributed storage system can be effectively improved.

This invention discloses a DFIM short-time overload control method and system based on MPPC, comprising: acquiring motor operating signals and calculating current power and torque; determining a short-time overload factor based on power reference values ​​and rated values, and identifying the system as normal, short-time overload, or exit state in conjunction with overload accumulation; enumerating candidate switching states of the rotor-side converter under a model predictive control framework, and predicting the power, current, and torque corresponding to each state; constructing a multi-objective cost function including power error, rotor current constraint, torque change rate, switching cost, and overload penalty term; selecting the optimal switching state for control; and smoothly reverting to the power reference value at a preset slope upon exit. This invention directly embeds short-time overload constraints into predictive control, and jointly manages the overload depth and duration through overload factor and accumulation, thereby improving dynamic response speed, suppressing current surges and torque oscillations, and achieving smooth exit from overload conditions while ensuring safety.

The invention discloses a vehicle dynamic weighing system based on multi-mode AI perception, and relates to the field of road overload control, and the system comprises a sensing module which is used for sensing a vehicle weighing scene, vehicle weighing and related information; the management module is used for receiving the vehicle weighing and the associated information thereof sensed by the sensing module in real time, and distinguishing, marking and storing the vehicle weighing and the associated information thereof; synchronous operation of dynamic weighing and vibration sensing is ensured through a unified time reference, the influence of environmental interference on data accuracy is reduced in combination with cooperative data acquisition of multiple devices, and data reliability is further improved through repeated weighing, vibration and image acquisition.

The utility model relates to the technical field of overload control detection, and particularly discloses a device for preventing vehicle violation at an overload control detection position at an expressway entrance, and the device is characterized in that the device comprises a weighing platform; a cavity is formed in the lower end of the weighing table, and a weighing device is arranged in the cavity and connected with the weighing table in a matched mode; a plurality of overhaul wells are arranged on the two sides of the weighing platform, the overhaul wells are communicated with the cavity, infrared detectors are arranged in the overhaul wells, and the infrared detectors are electrically connected with an alarm remotely arranged in an office or a duty room; the manhole cover is arranged on the inspection well and is connected with the inspection well in a matched manner; the manhole cover is provided with a fixing rod for limiting and fixing the manhole cover, and the two ends of the fixing rod are fixedly connected with the ground through ground locks.

The invention provides a method for generating a maneuvering instruction of a fixed-wing unmanned aerial vehicle, and the method comprises the steps: 1, carrying out the generation of a three-dimensional track, and forming a training data set; step 2, establishing a deep deterministic policy gradient algorithm (DDPG)-based actor network as a neural network of an off-line training network structure, and performing off-line training by using the training data set to obtain initial actor network parameters; step 3, establishing an unmanned aerial vehicle simulation model and a lower controller, establishing a corresponding network structure based on a depth deterministic strategy gradient algorithm DDPG, and designing different maneuvering trajectory lines for online training to obtain a neural network controller; and 4, deploying the neural network controller as an upper-layer controller in flight control, and performing combined control by combining with an overload controller and a rolling controller of a lower-layer controller. According to the method, the multi-task requirement of the unmanned aerial vehicle in a training scene is met, development time is shortened, and task adaptability is improved.

The embodiment of the invention discloses an anti-overload control method and system for a numerical control machine tool cutter, and aims at solving the problems that a traditional fixed threshold value protection mechanism is poor in adaptability and lags in response. In the aspect of the control method, a tool load self-learning function is started through a G code, the maximum load rate of a main shaft in normal machining is recorded, a load monitoring threshold value is dynamically calculated in combination with a self-learning coefficient, and precise protection of one-tool one-threshold value is achieved. And during secondary machining, the load value and the threshold value are compared in real time, a stepped adjusting mechanism is started when the limit is exceeded, the feeding rate is reduced firstly to relieve overload, and alarm shutdown is triggered if the limit is invalid. In the aspect of the system, a modular architecture comprising a control unit, a data acquisition and storage unit, a self-learning start-stop unit and a comparison and adjustment unit is constructed, and all the units cooperate to realize full-process management and control of an anti-overload function. And aiming at the turning and milling composite machine tool, a main shaft switching protection unit is additionally arranged, protection objects in different machining modes are automatically adapted, and the practicability and compatibility of the system are improved.

The utility model relates to the technical field of overload control boxes, in particular to a source science and technology overload control device for highway traffic and transportation enterprises. Comprising a control box, a control panel, an upper cover plate and a side cover plate, the control panel comprises a power supply main switch, power supply sockets, a 220V input interface, a 220V output interface, a 12V output interface, a fault display screen, a partition plate and a network communication module, the power supply main switch is installed above the control panel, the power supply sockets are installed on the right side of the power supply main switch, and the three power supply sockets are arranged along a linear array; a 220V input interface is installed on the left side of the power supply main switch, a 220V output interface is installed below the 220V input interface, a 12V output interface is installed below the 220V output interface, a fault display screen is installed on the right side of the 12V output interface, indicator lamps are arranged on the right side of the fault display screen, and the indicator lamps comprise a power supply indicator lamp and a fault indicator lamp. A partition plate is installed below the fault display screen, and a network communication module is installed below the partition plate.

The invention provides an overload control unit, a flexible direct-current power transmission converter valve submodule and a working method, and belongs to the technical field of flexible direct-current power transmission, and the submodule comprises a main power loop, an overload branch, a sensor module and an overload control unit. The main power loop comprises at least two main power devices, an energy storage capacitor and a bypass switch, the at least two main power devices are connected in series to form a half-bridge structure, the energy storage capacitor is connected in parallel at two ends of the half-bridge structure, one end of the bypass switch is connected with a common connection point between an upper bridge arm and a lower bridge arm of the half-bridge structure, and the other end of the bypass switch is connected with one end of the half-bridge structure; the overload branch is connected in parallel with the main power loop, the sensor module is connected with the energy storage capacitor and a bridge arm of the main power loop, the overload control unit is connected with the main power device, the bypass switch and the sensor module, and the overload control unit is externally connected with a power supply. The problem that an existing flexible direct current sub-module is difficult to bear excess current and voltage under short-time load sudden increase can be solved.

The application provides a method for overload and attitude hybrid control and mutual switching conversion of unmanned aerial vehicle, which measures the pitch angle and vertical overload by a gyroscope and an accelerometer respectively, and then forms a pitch angle error signal and an overload error signal according to an instruction; then carries out odd transform and exponential square root hybrid transform respectively to obtain an error comprehensive signal; then carries out odd transform, odd softening transform, and cubic and linear mixed anti-saturation segmented integration to obtain a non-linear translation signal of error and a hybrid differential signal of error, and then obtains a pitch attitude control law and a pitch overload control law through the comprehensive of the above signals; finally, when the pitch angle error is small, the attitude control is adopted, and when the pitch angle error is large, the overload instruction is generated according to the overload error, and the overload control is switched to, so that the fast and stable switching control of the unmanned aerial vehicle is realized.

The invention provides a fixed-wing unmanned aerial vehicle barrel rolling maneuvering control method based on a control index, and the method comprises the following steps: 1, introducing a maneuvering expected height, an overload feedforward initial quantity and maneuvering time, comprehensively and automatically calculating a real-time instruction rolling instruction and an overload instruction in a current unmanned aerial vehicle state, and taking the real-time instruction rolling instruction and the overload instruction as the input of a control channel in the step 2; and 2, a three-channel design is adopted, a longitudinal overload control channel, a rolling control channel and a yaw control channel are included, control instructions of the unmanned aerial vehicle are achieved, and then maneuvering control over the barrel rolling machine is completed. According to the method, the barrel rolling maneuvering action of the fixed-wing unmanned aerial vehicle can be achieved, the method has the advantages of being adjustable and high in adaptability, and function decoupling and automatic generation of maneuvering control instructions are achieved through the structural design of the two-layer controller.

The utility model discloses an overload control device of pneumatic winch, including deceleration pneumatic motor, pneumatic winch, shaft coupling, rotary gas distribution valve, pneumatic alarm and brake control valve. Deceleration pneumatic motor is driven with pneumatic winch through shaft coupling, and is provided with a plurality of springs between the left wheel disc and the right wheel disc of shaft coupling, and the outside of the transmission shaft of deceleration pneumatic motor is provided with rotary gas distribution valve, and the left wheel disc of shaft coupling is provided with pneumatic travel switch, and the right connecting axle block of right wheel disc is provided with travel block. When the pneumatic winch is overloaded, the deceleration pneumatic motor rotates, the spring between the left wheel disc and the right wheel disc is compressed, the travel block triggers the pneumatic travel switch, and the compressed air that flows back to the rotary gas distribution valve drives the pneumatic alarm to work or drives the brake control valve to work in emergency brake, which effectively prevents the safety accident caused by overload.

An optimal configuration method for a decommissioned battery energy storage system in power distribution network heavy overload treatment comprises the steps that a life loss model of current-carrying equipment is established, and the severity of power distribution network heavy overload is measured through a current-carrying equipment life loss fluctuation quantity sum index; constructing an energy storage system ESS economic evaluation model considering battery capacity attenuation and compensation, and quantifying the annual net cost of the energy storage system ESS; establishing a dual-objective optimization model based on the total life loss fluctuation quantity of the current-carrying equipment and the annual net cost of the energy storage system ESS; an improved fuzzy membership function is adopted to convert double targets into a single target optimization problem, and an energy storage system ESS optimal configuration and output strategy is solved based on an adaptive inertia weight particle swarm optimization algorithm. According to the method, a more accurate and economic scheme is provided for energy storage optimization configuration in a power distribution network heavy overload treatment scene.

The application discloses a ladder rack multi-source load overload operation control method and system of a cloud ladder fire engine, adopts a strain sensor to detect strain values generated by multi-source loads such as arm frame self weight, platform load, wind load, acceleration inertia load, water cannon counterforce, bridge counterforce and the like in real time, and then calculates real-time bending moments of the ladder rack from the strain values. When the real-time bending moment of the ladder rack is less than the maximum bending moment, the ladder rack can continue to increase the amplitude even if overloaded, otherwise, the ladder rack will stop the action. When the real-time bending moment of the ladder rack approaches the maximum bending moment, the ladder rack is proportionally decelerated until the action stops. The application can realize overload control within the safe operation range of the cloud ladder fire engine, and effectively improves the rescue efficiency.

A method for performing slice-specific overload control in a wireless communication system includes detecting slice-specific overload in a radio area network (RAN) based on a physical resource block (PRB) utilization threshold and a predetermined time period, wherein a specific RAN network slice is identified via network slice selection assistance information (S-NSSAI), mapping the slice to an access category in the RAN, and informing the RAN of an action to be taken to mitigate the detected slice-specific overload.

The application relates to the technical field of Internet, and particularly provides a vehicle comprehensive overload management platform, a terminal and a storage medium, which comprise a network interface layer used for information interaction with a vehicle information transmission interface and a law enforcement system; an information input layer used for preprocessing vehicle position data, driving data and vehicle data collected by the network interface layer; a data processing layer used for calling road restriction rules corresponding to a position where a vehicle is located and a position where the vehicle is about to arrive based on the vehicle position data and the driving data, matching the vehicle data with the road restriction rules, and obtaining a rule violation judgment result; and a data output layer used for generating a law enforcement task based on the rule violation judgment result, and calling the network interface layer to distribute the law enforcement task to the law enforcement system. The application improves the comprehensiveness of rule violation management and information security.

The application discloses a kind of in-transit dynamic weighing data fusion free flow method of overloading, comprising the following steps: S1, the high-speed dynamic weighing system and in-transit weighing data fusion overloading platform are arranged;S2, weighing system records weighing data and weighing time, portal system sends vehicle information to weighing system;Weighing system carries out fusion to vehicle information and weighing data at the same time in-transit weighing, and only uploads the weighing data of truck type to overloading platform;S3, in-transit weighing data fusion overloading platform carries out fusion correction to heavy data, and uploads fusion result to charging system;S4, charging system issues data to adjacent toll station according to self rules.The application realizes in-transit weighing, compares in-transit weighing data with exit weighing data at exit, focuses on abnormal comparison result, identifies the behavior of midway cargo transfer, and can achieve the purpose of overloading and auditing in free flow mode.

This invention discloses an overload prevention control method and system for telescopic boom cranes based on boom strain, relating to the crane-related field. The method includes: arranging strain acquisition units along the length and circumference of multiple boom sections to acquire multi-dimensional strain data and construct a spatial strain distribution field; analyzing the consistency of strain response to identify local abnormal regions and determine the structural stiffness degradation state; extracting asymmetric strain components on the boom cross-section to construct force flow offset characterization parameters; performing time-series evolution analysis to obtain basic strain components and additional load components, and inverting the equivalent load and its application position on the boom; performing a prediction of the boom's true load-bearing capacity; and optimizing the control strategy based on safety constraints configured according to the prediction results. This application solves the problems of existing boom overload prevention control systems, such as inability to adapt to structural changes, incomplete monitoring, and difficulty in responding to overload risks. It achieves accurate adaptation to boom structural changes, comprehensive monitoring of the stress state, and effective response to overload risks.

The application relates to a switch cabinet for automatic control of an intelligent power grid and an overload control method thereof, which comprises a cabinet body, a static contact is arranged on a wiring board, a rotary disc is arranged on a wiring block, a switch blade is arranged in the cabinet body, a fuse is arranged on the switch blade, a moving contact is arranged on the other end of the fuse, a separation structure is further arranged on the switch blade, the separation structure can drive the rotary disc to rotate, an induction structure is arranged on the cabinet body, the induction structure comprises a heating resistor connected with a line, the rotary disc and the induction structure are connected through a one-way driving structure, the induction structure can drive the rotary disc to rotate through the one-way driving structure, so that the moving contact is in contact with the static contact or is separated from the static contact, a signal receiver is further arranged in the cabinet body, the state of the line can be monitored in real time through the induction structure, the induction device can monitor the load through resistance heating, the error of the induction value is small, the fluctuation is small, and the line has hysteresis when the line is restored to the pass-through state.

The invention discloses a method, a system, equipment, a medium and a product for controlling extreme events under typhoon, and the method is characterized in that the method comprises the steps: obtaining typhoon meteorological data, and the structure parameters and real-time operation data of a power distribution network; mapping nodes and lines in the power distribution network into a space-time diagram structure, and inputting the typhoon meteorological data and the real-time operation data into the space-time diagram structure to represent a dynamic coupling relationship between typhoon evolution and the state of the power distribution network so as to obtain coupled space-time characteristics; inputting the coupled spatial-temporal characteristics into a deep reinforcement learning control model to generate a discrete action control instruction based on the state vector, generating a corresponding continuous action control parameter according to the discrete action control instruction, and determining a typhoon control strategy of the power distribution network in combination with the discrete action control instruction and the continuous action control parameter; and carrying out collaborative optimization control on power distribution network equipment of the power distribution network under the typhoon disaster based on the typhoon control strategy. According to the invention, the accuracy of power grid cascade overload control under typhoon disasters can be improved.

The application discloses an overload controller and control method suitable for a thrust-adjustable direct force device, which is composed of a direct force device starting control time discrimination module, a high-low temperature working state discrimination module, a self-adaptive control parameter module, a main controller based on overload deviation control and a filter, can overcome the influence of thrust deviation caused by different temperatures, and can accurately and quickly track the overload instruction after the nozzle opening degree instruction output by the overload controller reaches the direct force device.

The invention provides an anti-overload control method applied to an industrial and commercial energy storage system and a related device, which are applied to the technical field of integrated control of the energy storage system. The method comprises the steps that in the charging process, whether the total apparent power of a transformer meets a preset anti-overload control condition or not is judged, and if yes, the corresponding total charging and discharging execution power is executed. Specifically, when the total apparent power of the transformer is smaller than an overload control starting threshold value, issuing is carried out according to a total charging and discharging power actual issuing value; adjusting a total charging and discharging power set value according to a first-stage overload power reduction coefficient and then issuing the total charging and discharging power set value when the first-stage overload power limit value is within the range of the return difference of the overload power limit value; when the power is within the range above and below the return difference between the secondary overload power limit value and the overload power limit value, the total charging and discharging power set value is adjusted according to the secondary overload power reduction coefficient and then issued; and when the three-level overload power is greater than the three-level overload power limit value, adjusting the total charging and discharging power set value according to the three-level overload power reduction coefficient and then issuing.