332 results about "Power regulation" patented technology

The application discloses a kind of ship generator set reactive power testing device, method and computer program product, wherein the device includes: at least two adjustable reactors and control unit;The control unit includes at least two switch units and busbar;The adjustable reactor is connected in parallel by one the switch unit and accesses the busbar;The control end of the control unit is connected to each the adjustable reactor;The control unit is used to control the on-off state of the switch unit, and the reactive power regulation of the adjustable reactor and the adjustable reactor in ship generator power test.The technical scheme provided by the embodiment of the application can avoid the problem of repeated wiring under different test power, adapt to the test requirements of multiple power changes, and improve the test efficiency.

The application discloses a kind of plasma reactor and the method for power compensation to focus ring, and plasma reactor includes: reaction cavity, substrate support unit, is arranged at the inside bottom of reaction cavity;Substrate support unit includes: pedestal, which is connected to the radio frequency power supply device located outside the reaction cavity by matching circuit;Electrostatic chuck is arranged on the pedestal;The upper surface of electrostatic chuck is used to adsorb substrate;Focus ring, focus ring surrounds electrostatic chuck;Power regulating device is respectively connected with focus ring and matching circuit radio frequency coupling;Power regulating device includes: series inductance and variable capacitor, for adjusting the impedance of branch where focus ring is located, to adjust the radio frequency power coupled on focus ring, prolong the service life of focus ring, prolong maintenance period.

This invention provides an intelligent operation and maintenance system for prefabricated substations based on big data, belonging to the field of prefabricated substation operation and maintenance technology. The data access unit unifies the time alignment of electrical operation, environmental monitoring, and historical operation and maintenance data, constructing a constrained time-series data structure based on equipment topology; the state evolution modeling unit extracts multi-scale features, generating three sets of evolution parameters: impedance, capacity, and load; the control variable reconstruction unit generates enhanced control input vectors through component mapping and iterative feedback; the real-time control execution unit outputs reactive power regulation and voltage control commands accordingly; and the human-machine feedback unit embeds manually corrected information and updates control parameters. This invention solves the problems of lack of topological constraints in multi-source data and the difficulty of embedding human experience into automated control, improving the intelligence level, control accuracy, and adaptability of prefabricated substation operation and maintenance.

This invention discloses a wide-range power adjustment device for a power vehicle, comprising a frame, a foot crank, a flywheel shaft, a flywheel, a static friction plate, an annular airbag, an airbag baffle, a return spring, a cantilever beam force sensor, a Hall sensor, and a controller. The flywheel shaft with the foot crank is rotatably connected to the frame, and the flywheel is fixedly connected to the flywheel shaft. The static friction plate, the annular airbag, and the airbag baffle are respectively clearance-fitted to the flywheel shaft. The annular airbag is fixedly connected between the static friction plate and the airbag baffle. Each return spring is connected between the static friction plate and the airbag baffle. The fixed cantilever beam force sensor is connected to the top of the static friction plate via a top steel wire rope. The speed measuring probe of the Hall sensor faces the flywheel. The inflation mechanism, the deflation mechanism, the cantilever beam force sensor, and the Hall sensor are all connected to the controller. This invention adopts a friction-damped power adjustment method, without a transmission structure, achieving zero power output and increasing the maximum power range.

This invention provides a microgrid power coordination method and system based on state-enhanced Kalman filtering, relating to the fields of new energy, power electronics, power conversion, and control technologies. The method includes: constructing a state-space model of an AC microgrid and modeling feeder impedance as an augmented state, thus constructing an augmented state-space model of the AC microgrid; based on the augmented state-space model, using an improved Kalman filtering algorithm, calculating the optimal estimate of the feeder impedance of each distributed power source unit, and using an optimal impedance adjustment algorithm to calculate the virtual impedance of each distributed power source unit; and adjusting the output voltage of each distributed power source unit according to its virtual impedance to achieve reactive power regulation of the AC microgrid. This invention effectively solves the problem of the difficulty in directly obtaining feeder impedance in practical engineering and compensates for feeder impedance mismatch by allocating virtual impedance, thereby achieving reactive power balance in the AC microgrid.

The application discloses a hydrogen fuel cell power supply adaptability ground test method, system, equipment, medium and product of a UAV, relates to the UAV test technical field, obtains the ground test data of the to-be-tested UAV, carries out power demand analysis by using the ground test data, obtains a plurality of motor input total power, a plurality of motor output shaft power and weighted average propeller force efficiency, carries out power supply test on the preset hydrogen fuel cell by using each motor input total power, obtains a safety detection result and a plurality of variable load power response times, when the safety detection result is qualified, then carries out power supply adaptability detection according to each variable load power response time, each motor input total power, each motor output shaft power and weighted average propeller force efficiency, and obtains a power supply adaptability detection result. The application solves the problem that the existing hydrogen fuel cell lacks the safety buffer and power regulation capability of lithium batteries, which easily leads to the risk of stack overheating and reduces the reliability of the hydrogen fuel cell in the application of the UAV.

This utility model discloses a wireless charging circuit and a power bank. The circuit includes a power management module, a buck-boost module, a wireless charging module, and a control module. The power management module is electrically connected to both the buck-boost module and the control module. The buck-boost module is also electrically connected to both the wireless charging module and the control module. The control module includes a power regulation unit electrically connected to the wireless charging module and a voltage sampling unit electrically connected to the battery. The control module is configured to: when the voltage sampling unit detects that the battery operating voltage is within a first voltage range, the power regulation unit outputs a first power regulation signal to control the wireless charging module to output a first power; when the voltage sampling unit detects that the battery operating voltage is within a second voltage range, the power regulation unit outputs a second power regulation signal to control the wireless charging module to output a second power. This utility model not only improves wireless charging efficiency but also ensures safety and stability, enhancing the user experience.

The application provides an amplifier current-limiting control method for fusing power regulation and load characteristic monitoring, comprising: realizing controllable front-stage signal through differential input and band-pass clamping, establishing voltage, current and multi-point temperature monitoring and combining overvoltage detection to generate out-of-limit indication, setting voltage and current upper limit in silicon-controlled voltage regulating module and executing voltage reduction and current limiting, realizing orderly switching through front-stage shutdown and relay stable control when impedance gear is switched, keeping front-stage closed and shutting down power drive when out-of-limit continues to exist, and until monitoring quantity recovers to safe range. Through the collaborative design of "source power limiting, state monitoring, orderly switching and linkage protection", the application effectively suppresses transient impact, shortens protection response time, reduces distortion accumulation, and realizes the unity of high-power output and high reliability of wide-band multi-gear amplifier.

This invention relates to a hierarchical voltage regulation method for main and distribution networks that considers the regulation capabilities of virtual power plants. First, a multi-resource aggregation model of the virtual power plant, including distributed generation, energy storage, and flexible loads, is constructed to quantify its active / reactive power regulation potential and dynamic response characteristics. Second, a three-layer coordinated control framework of the main grid, distribution network, and virtual power plant is designed, clarifying the control objectives and responsibilities of each layer and establishing a command decomposition and feedback iteration mechanism between layers. Then, a hierarchical optimization mathematical model is constructed. The upper layer performs global optimization with the objectives of minimizing network losses and voltage deviation, while the lower layer dynamically allocates the internal resource output of the virtual power plant based on an improved particle swarm optimization algorithm, achieving hierarchical coordination through alternating iterations. Compared with existing technologies, this invention has advantages such as effectively reducing voltage deviation, lowering system network losses, and significantly improving the voltage stability and resource utilization efficiency of the main and distribution networks.

This invention relates to the field of metallurgical control technology, specifically to a power adjustment method and system for a steel pipe threading machine based on PLC logic control. The method includes: acquiring real-time load current of the main drive mechanism in the threading machine, real-time position data of the billet on the conveyor rollers, real-time temperature data of the billet, and real-time feedback torque of the main drive mechanism; when the billet reaches the biting start position, the PLC obtains a first target torque based on the temperature-corrected reference torque, and generates a control signal to control the main drive mechanism after deviation comparison; after the billet is bitten, the load current waveform is identified to obtain a status signal, the coupling relationship between current fluctuation and temperature is analyzed during the stabilization piercing stage to obtain a speed-torque composite adjustment coefficient, the roller speed and the second target torque are adjusted, and the output torque of the main drive mechanism is adjusted in real time through torque deviation judgment; this invention can improve the efficiency of power adjustment of a steel pipe threading machine based on PLC logic control.

This invention relates to the field of single-phase power regulation technology, and more particularly to a multifunctional single-phase power regulator, comprising: a main circuit module for connecting the power supply and load and setting power regulation devices in series; an internal power supply and voltage regulation module that draws power from the main circuit and performs current limiting, rectification, and voltage regulation; a control and regulation module that generates control signals based on input signals and main circuit parameters under its power supply; a trigger suppression and synchronous start module that prohibits triggering before the power supply is stable or synchronization conditions are met; a protection monitoring module for monitoring main circuit parameters and prohibiting triggering in case of abnormalities; and a heat dissipation and maintenance module with an independent disassembly and assembly structure. In this invention, by drawing power from the main circuit and uniformly supplying power to the control and trigger modules for coordinated operation, control conditions are synchronously established when the main circuit is turned on, thereby improving the problem of false triggering and inconsistent start-up that easily occurs in traditional single-phase power regulators due to asynchronous power supply between the main control and the main circuit.

The application discloses a kind of light hydrogen storage fills integrated energy management system and method, it is related to energy management technical field, system includes light hydrogen storage fills integrated module and energy management module, energy management module is used for: the operating state data of each module of the light hydrogen storage fills integrated module is collected, obtains system state vector;Based on the initial allocation weight between each module and the system state vector to be allocated power, determine the initial allocation power of each module;For each module in light hydrogen storage fills integrated module, call corresponding power regulation agent, correct the initial allocation power corresponding to module, output correction result;Based on correction result, determine the final allocation power of each module;Based on final allocation power, determine the reference state vector of system state vector after power allocation, reference state vector is mapped as the control instruction of each module by cause-effect mapping relationship.This application improves the reliability of energy management system.

The application discloses a reactive power voltage regulation method and device based on multi-photovoltaic cooperative game, a device and a medium. The current voltage data of each public connection point is obtained. For each photovoltaic power station, the target direction prediction table of the current voltage regulation period is used to determine the reactive power regulation direction of the neighboring power station corresponding to the photovoltaic power station according to the current voltage data. The preset adjustable amount determination model is used to determine the target reactive power adjustable amount of the neighboring power station according to the reactive power regulation direction. The target multi-photovoltaic cooperative game model is used to calculate the reactive power regulation amount of the photovoltaic power station in the current voltage regulation period according to the target reactive power adjustable amount and the target voltage regulation demand data of the photovoltaic power station. Finally, the photovoltaic power station is regulated based on the reactive power regulation amount. Thus, the cooperative game theory and the distributed control strategy are used to realize adaptive voltage regulation of the power distribution network with many changes, so as to meet the actual application requirements and improve the voltage safety.

The present application relates to power distribution network operation control technical field, especially to a kind of photovoltaic power station reactive power voltage distributed collaborative control method, comprising: in the process of distributed reactive power voltage control operation, each photovoltaic power station node is not under the condition that fixed collaborative control object or fixed neighborhood relationship is not set in advance, based on the operating state of each node independently participates in reactive power regulation;During reactive power regulation, the voltage change information of own node is continuously collected, and the voltage change information is associated with the operating state change information of other photovoltaic power station nodes in the operation process, to form operating response data;Based on operating response data, other photovoltaic power station nodes that affect the voltage of own node are identified, and a collaborative object set is formed locally;In the process of control operation, each photovoltaic power station node evaluates the collaborative relationship, and updates the collaborative object set when the evaluation result changes, and independently executes reactive power regulation decision based on the updated collaborative object set.

Provided in the present solution are an energy storage system and an operation method therefor. The energy storage system is configured to be coupled to a power grid so as to provide the power grid with power regulation of which the maximum value is an agreed capacity. The energy storage system comprises an energy storage unit, a measurement unit and a control unit. The measurement unit is used for measuring the operation frequency of the power grid. The control unit is coupled to the measurement unit and the energy storage unit and is used for receiving the operation frequency of the power grid that is measured by the measurement unit. When the operation frequency of the power grid that is measured by the measurement unit is greater than or equal to a first frequency boundary value and smaller than or equal to a second frequency boundary value, the control unit sets the regulation ratio of the power regulation to a first operation ratio, the first operation ratio being smaller than or equal to 0 and greater than or equal to a first input boundary value, the first frequency boundary value being smaller than a first frequency and / or the second frequency boundary value being greater than a second frequency.

The application discloses a kind of multi-port solid state transformer coordination control method, device, terminal and medium, it is related to power distribution network technical field, the scheme provided in the present application is matched with bus voltage hierarchical threshold by equipment type division, the coordination control logic of different equipment is dynamically matched, the collaborative optimization of photovoltaic power generation maximum power tracking, energy storage charge-discharge power regulation and load hierarchical switching is realized, ensure that photovoltaic, energy storage and load equipment form optimal cooperation under different working conditions, with the advantages of improving the reliability of multi-energy system power supply and power quality, avoiding direct current bus voltage overrun and equipment overload risk.

The present application relates to the technical field of communications, and discloses a power regulation method and an optical communication system. The power regulation method comprises: obtaining a power difference between first power of a first amplifier in a target transmission span and second power of a second amplifier in the target transmission span, wherein the first amplifier is used for transmitting a first waveband signal, the second amplifier is used for transmitting a second waveband signal, and the first power is smaller than the second power; when the power difference is greater than or equal to a threshold value, determining a first compensation amount of the first power and a second compensation amount of the second power on the basis of the power difference, the sum of the first compensation amount and the second compensation amount being smaller than the power difference; and increasing the first power of the first amplifier to first correction power according to the first compensation amount, and decreasing the second power of the second amplifier to second correction power according to the second compensation amount, so that a power difference between the first correction power and the second correction power is smaller than the threshold value.

The present application relates to the technical field of power system operation analysis and regulation, and specifically discloses a kind of VSC-HVDC system power flow regulation capability evaluation method, comprising the following steps: S1, the power flow regulation range mathematical model of establishing containing back-to-back flexible HVDC transmission system BTB;S2, establish new energy output uncertainty model;S3, construct power flow over-limit risk and risk adaptive power regulation mechanism;S4, generalized polynomial chaos matrix method is used to evaluate the two-way power flow regulation range;S5, output power flow regulation range evaluation results and visual index.The present application uses the above-mentioned VSC-HVDC system power flow regulation capability evaluation method, realizes the collaborative quantification of new energy randomness, operation risk and BTB regulation capacity, improves the accuracy and engineering practicability of the evaluation results, and provides a decision basis for power system planning and design, operation control.

This invention proposes a fast frequency control method and device for wind-solar-storage power stations, belonging to the field of fast frequency and active power control technology for new energy power stations. The method includes: at the arrival of each sampling period, updating the active power target values ​​of wind turbines, photovoltaics, and energy storage based on whether the grid connection frequency of the wind-solar-storage power station is outside the upper and lower limits of the frequency warning and the active power regulation capabilities of wind, solar, and energy storage, reserving the maximum active power regulation capability of photovoltaics and energy storage; calculating the total active power regulation of the wind-solar-storage power station based on whether the grid connection frequency is outside the upper and lower limits of the frequency and the active power frequency droop curve function; updating the active power target values ​​of wind turbines, photovoltaics, and energy storage based on the active power regulation demand and the active power regulation capabilities of photovoltaics and energy storage; and performing active power correction for energy storage and photovoltaics when the fast frequency response time arrives. This invention can utilize the fast active power regulation capabilities of photovoltaics and energy storage to compensate for the capacity loss due to the inability of wind turbine active power regulation to be implemented on time, restoring the fast frequency response capability of the power station.

The present application relates to the technical field of intelligent manufacturing control, and more particularly to an energy consumption perception and dynamic power regulation system for mechatronic equipment, which synchronously collects and standardizes the multi-dimensional physical field information of the equipment's execution unit and peripheral collaboration unit through a multi-source signal acquisition module, achieving comprehensive perception of the operating state. The system analyzes the residual error between the actual operating signals and the job process benchmark model based on a working condition feature recognition module, extracts the kinetic parameters and energy consumption fluctuation characteristics, and further evaluates the mechanical fatigue and electrical loss level by an electromechanical life quantification module to form a life loss state vector. On this basis, the energy flow collaborative scheduling module realizes the optimization of the whole cycle energy flow through action phase adjustment under the premise of meeting the life threshold constraint. Combined with dynamic tolerance planning and error compensation execution, the motion accuracy and energy consumption efficiency are synergistically improved, thereby prolonging the service life of the equipment and reducing the overall energy consumption.

The application discloses a kind of based on reinforcement learning's hydropower station primary frequency modulation governor parameter optimization method, including constructing water machine electric coupling simulation model;Frequency disturbance is applied to water machine electric coupling simulation model under different working conditions, and the primary frequency modulation performance index under each working condition is calculated;With water machine electric coupling simulation model as environment, with water head and initial power as state input, with the control parameter of speed regulator as action output, with the primary frequency modulation performance index as reward signal, reinforcement learning model is constructed;The optimal strategy is obtained by training reinforcement learning model using preset algorithm, and the optimal strategy can output optimal control parameter according to current state.The application solves the systematic problem that traditional fixed parameter governor is difficult to consider adjustment safety, dynamic response and adjustment accuracy under multiple working conditions and multiple indexes, significantly improves the primary frequency modulation qualification rate of hydroelectric generating set in the whole working condition range, enhances the stability of power regulation process, and supports the effect of safe and reliable operation of power grid frequency.

The application discloses a kind of wisdom road lighting energy-saving control circuit, it is related to lighting energy-saving control technical field, including micro control module, according to the voltage size of photoelectric conversion, control photovoltaic control module carries out photoelectric conversion, power regulation, isolation voltage transformation and electric energy superposition, during illumination, energy storage control module cooperates photovoltaic control module power supply and carries out constant current voltage stabilizing drive to first lighting module and second lighting module, when the electric energy of energy storage control module is lower than second low voltage threshold, cooperate auxiliary regulation module separately power supply for second lighting module, mains module cooperates photovoltaic control module and is powered for first lighting module, when the electric energy of energy storage control module is lower than power shortage threshold, mains module cooperates photovoltaic control module and carries out constant current voltage stabilizing drive to first lighting module and second lighting module.The application wisdom road lighting energy-saving control circuit can improve voltage gain, improve energy-saving effect, improve electric energy utilization rate and carry out electric energy distribution reasonably and efficiently.

The present application belongs to the technical field of photovoltaic power generation grid-connected control and energy storage power regulation, and relates to an output power fluctuation compensation control method of an energy storage photovoltaic power generation system. The present application acquires output power and sampling interval, and calculates the current power change rate; determines the voltage power response parameter according to the output power change and the voltage change; identifies the power overshoot overrun direction or the falling overrun direction and calculates the overrun amplitude; generates compensation instructions according to the overrun amplitude and the fast energy storage unit; and drives the slow energy storage unit to perform energy supplement or recovery on the fast energy storage unit. The present application solves the problems that the fixed power change rate limit value is difficult to adapt to the grid-connected point voltage response state and the state of charge of the fast energy storage unit continuously deviates in continuous compensation, and achieves the effects of reducing the influence of output power mutation of the grid-connected point, maintaining the continuous compensation capability of the fast energy storage unit, and improving the output power fluctuation compensation stability of the energy storage photovoltaic power generation system.

This invention belongs to the field of marine hybrid power system control and discloses an energy allocation optimization method and system for hierarchical control of a marine DC microgrid. The method includes: establishing a top-level optimized power allocation strategy model with the goal of minimizing diesel generator output and battery life loss; solving the top-level optimized power allocation strategy model using the second-generation non-dominated sorting genetic algorithm NSGA-II and the top-to-bottom solution distance method TOPSIS to obtain the power allocation scheme with optimal overall performance; introducing power regulation and voltage compensation in the intermediate layer, combined with droop control in the execution layer, to form an improved droop control, thereby achieving power allocation and current sharing control. This invention achieves optimal overall performance in marine power systems, including extended battery life, reduced fuel consumption, and efficient, energy-saving, and environmentally friendly operation.

This invention discloses a photovoltaic cell power regulation method, system, device, and medium based on PSO (Power Optimization Scale), relating to the field of new energy photovoltaic power generation technology. The method includes: acquiring light intensity; when the light intensity changes, altering the operating voltage of the photovoltaic cell to be regulated and performing a power search to obtain the maximum power of the photovoltaic cell under the changed light intensity, and determining the operating voltage corresponding to the maximum power as the target voltage; adjusting the operating voltage of the photovoltaic cell to be regulated to the target voltage, enabling the photovoltaic cell to operate at maximum power; and obtaining the optimal power generation of the photovoltaic cell under the current light intensity through power search, thereby optimizing the photovoltaic cell power regulation. This ensures that the photovoltaic cell can quickly respond to changes in light intensity under various light conditions to achieve optimal output power, significantly improving the photovoltaic cell power generation efficiency, and thus providing a new feasible solution for improving the efficiency of new energy power generation.

A method and apparatus for calculating the frequency deviation of the sending-end power grid are disclosed. The method includes: obtaining the active power support scheduling demand of the DC system for the sending-end power grid, the power regulation provided by the MMC converter station, the power regulation provided by the thermal power units of the sending-end power grid, and the power regulation provided by the wind power units of the sending-end power grid; and calculating the frequency deviation of the sending-end power grid using an active power-frequency coupling model of the sending-end power grid based on the active power support scheduling demand of the DC system for the sending-end power grid, the power regulation provided by the MMC converter station, the power regulation provided by the thermal power units of the sending-end power grid, and the power regulation provided by the wind power units of the sending-end power grid. The method and apparatus provided by this invention reveal the support effect of wind power frequency regulation transmission via a flexible DC system on the frequency stability of the sending-end power grid, providing a technical means to improve the safe and stable operation level of the power grid under high-proportion renewable energy access.

This application relates to a control method, apparatus, computer equipment, and medium for frequency support in a grid-connected system. The grid-connected system includes an energy storage unit and a renewable energy generation unit. The energy storage unit includes a rechargeable battery pack and a discharge battery pack. The method includes: in response to a power regulation command for the grid-connected system, acquiring a first current state of charge (SOC) of the rechargeable battery pack, a second current SOC of the discharge battery pack, the maximum available power of the renewable energy generation unit, and grid frequency deviation data; determining a comprehensive SOC of the energy storage unit based on the first and second SOCs; and determining a target power regulation strategy for the grid-connected system based on the comprehensive SOC, frequency deviation data, and the maximum available power of the renewable energy generation unit, to control the power generation of the energy storage unit and the renewable energy generation unit. This method can extend the battery pack's lifespan while ensuring grid frequency stability.

This utility model discloses a high-temperature cooling plate cooling device with a built-in cooling tube, including a cooling plate. A cooling plate is fixedly connected to the inner surface of the cooling plate, and an ultra-low temperature probe is fixedly connected to the outer surface of the cooling plate. A cooling tube is disposed inside the cooling plate, extending from the left side of the cooling tube to the left side of the cooling plate and connected to a connecting hose. An ultra-low temperature chiller is connected to the left side of the connecting hose, and a placement box is fixedly connected to the top of the ultra-low temperature chiller. This utility model first monitors the temperature of the cooling plate in real time using the ultra-low temperature probe. The monitoring data is analyzed and judged by a control terminal. When the monitored temperature is greater than or less than a preset temperature value, the control terminal sends a signal to a power regulation module, which increases or decreases the operating power of the ultra-low temperature chiller. At this time, the temperature of the cooling device can be detected and adjusted in real time.