24results about How to "Improve power utilization efficiency" patented technology

The invention discloses a photovoltaic off-grid hydrogen production system and a control method thereof, and the method comprises the following steps: obtaining original data of an environment sensor, carrying out synchronous collection through a distributed data collection system, and obtaining standardized environment data through an STL algorithm, Z-score standardization and wavelet noise reduction processing; carrying out photovoltaic output power prediction by adopting an integrated learning method, and carrying out MPPT control optimization; an electrolytic cell dynamic model is constructed, multi-objective optimization and energy storage system state estimation are carried out, and energy storage optimization scheduling is achieved; and finally, realizing overall optimization of the system through a multi-time-scale coordination control framework. The system operation efficiency is improved, the system reliability is enhanced, the operation cost is reduced, and the system is particularly suitable for an off-grid hydrogen production scene with large photovoltaic energy volatility.

The invention discloses a charging pile dynamic power scheduling method, and relates to the technical field of charging pile power scheduling, and the method specifically comprises the following steps: obtaining node state information of each remaining normal node in real time, and generating a remaining bearing capability index and a load balancing index of each normal node; and constructing a power distribution evaluation model for the generated residual bearing capacity index and the load balancing index of each normal node, generating a power distribution evaluation coefficient of each normal node, analyzing the power distribution evaluation coefficient after generation, and evaluating the power bearing capacity of each normal node. Dividing each normal node into a high-bearing node, a middle-bearing node and a low-bearing node according to an evaluation result; and respectively adopting a corresponding power scheduling strategy according to a division result of each normal node. According to the invention, the problem that the power resource cannot be quickly and efficiently allocated after the fault node exits is solved, and efficient and stable dynamic balanced power scheduling and system operation are realized.

The invention discloses a distributed photovoltaic grid management method and system, and relates to the technical field of distributed photovoltaics, a distributed photovoltaic efficiency analysis module of the system monitors and evaluates the power utilization efficiency Psys of the whole system in real time by constructing a power efficiency formula, and compares the power utilization efficiency Psys with a preset efficiency threshold value X. When the operation efficiency of the system is lower than a set threshold value, the intelligent scheduling and energy distribution module starts an optimization strategy according to an electric power balance scheduling analysis result, redistributes electric power supply, preferentially meets a high-demand area or an area with insufficient energy storage, and ensures electric power supply and demand balance. According to the system, through an intelligent scheduling algorithm, power distribution is flexibly adjusted based on the priority factor of each micro-grid unit, and the operation efficiency of the system is improved. An intelligent feedback and iterative scheduling mechanism enables the system to still maintain efficient operation under continuously changing load and power generation conditions, power loss is reduced, resource waste is reduced, and the overall power utilization rate is improved.

The invention discloses an energy storage charging and discharging management method and device under load fluctuation, and relates to the technical field of energy management, and the method comprises the steps: collecting the equipment operation and demand electric charge data of an enterprise; acquiring enterprise load fluctuation and electricity price floating data; according to the load fluctuation and the electricity price floating, peak and valley load time periods are determined; generating a charging and discharging strategy of the energy storage system based on the time period; equipment operation, electricity price and energy storage system state of an enterprise are monitored in real time, and optimization constraint conditions are generated; and inputting the optimization constraint condition into the demand electric charge calculation model, and further optimizing the charging and discharging strategy. The technical problem that an existing energy storage system cannot dynamically adapt to enterprise load fluctuation and electricity price change in the charging and discharging process is solved, and the technical effects of reducing the enterprise demand electric charge and improving the electric power utilization efficiency are achieved.

The target tracking-oriented aircraft cluster networking radar power distribution method is suitable for tracking a target object, and comprises the following steps: S101, simulating a target scene of a tracking task; s102, determining a tracking performance index of the aircraft cluster to the target object; s103, establishing a power distribution mathematical model; and S104, solving a model exact solution of the power distribution optimization model based on an optimization power distribution algorithm of an iterative dichotomy to determine the power distribution degree, thereby improving the tracking efficiency of the target object.

The invention provides a capacitor detection method for reactive power compensation equipment, and relates to the field of reactive power compensation equipment detection, and the method comprises the steps: carrying out the real-time monitoring of the reactive power compensation equipment in a power system, inputting the real-time monitoring data into a trained health state evaluation model, and outputting the health state of a capacitor; comprehensively evaluating and analyzing the health state of the capacitor, and judging the risk condition of the capacitor according to the comprehensive evaluation and analysis result; and correspondingly determining the operation on the capacitor according to the risk condition of the capacitor, and executing the operation on the capacitor. According to the capacitor detection method of the reactive power compensation equipment, the normal operation data of the equipment is collected and is taken as a sample to judge whether the capacitor in the reactive power compensation equipment needs to be overhauled or replaced, so that the important significance of the reactive power compensation equipment on improving the utilization efficiency of the electric energy of a power grid is brought into play.

The present invention discloses a battery cell and a battery pack. The battery cell includes a cylinder. The two ends of the cylinder are respectively provided with a first end cover and a second end cover. The cylinder, the first end cover and the second end cover define a containing space. A battery cell assembly is provided in the containing space. A heat exchange tube is provided on the first end cover and the second end cover and passes through the containing space. The outer wall of the heat exchange tube is in contact with the battery cell assembly. The heat exchange tube is connected to an external low-temperature fluid and exchanges heat with the battery cell assembly to take away part of the heat generated by the battery cell assembly, thereby avoiding the situation where the internal temperature of the battery cell rises and the battery charging and discharging efficiency and reliability are reduced. The heat exchange tube is connected to an external warm fluid and exchanges heat with the battery cell assembly, which can help the battery cell assembly to quickly heat up under extremely cold conditions, thereby improving the efficiency of electric energy utilization. The battery pack includes at least two battery cells. The heat exchange tubes of adjacent battery cells are connected. After the external fluid is input from the heat exchange tube at one end of the battery pack, all battery cells can be heat exchanged.

The invention relates to an electric vehicle charging pile reactive power regulation method and system based on cloud processing. The method comprises the steps that real-time electric quantity and operation state data are collected through an intelligent electric meter and a charging pile; utilizing historical data and a machine learning algorithm to predict a reactive power regulation range meeting voltage safety constraints; based on the target power factor or the power grid adjustment instruction, establishing a reactive power optimization model, and calculating a reactive power distribution scheme of the charging pile; and issuing the optimization instruction to each charging pile for execution, and dynamically adjusting the strategy. The system comprises a data acquisition unit, a communication unit, a cloud processing unit, an instruction issuing unit and a user interface unit, and centralized management and optimization of reactive power regulation of the charging pile are realized. Compared with a traditional mode, the bidirectional reactive power regulation capability of the charging pile is fully utilized, the equipment investment is reduced, the energy efficiency is improved, high efficiency and flexibility are achieved, the requirement of a future power grid for reactive power regulation is met, and the wide application prospect is achieved.

The present application belongs to the field of medical device control technology, and provides a control method for an electric stapler and an electric stapler. The electric stapler includes a working part, a motor and a control board. The control method is applied to the control board. The control board is connected to the motor, and the motor is connected to the working part. The control board includes a control circuit, a motor drive circuit, a sampling circuit and a boost circuit. The method includes: determining the motor speed, tissue impedance, drive voltage and a first duty cycle of the motor control signal through a sampling signal and a speed Hall signal; and according to the comparison results of the motor speed and the preset motor speed, the tissue impedance and the impedance threshold, the first duty cycle and the duty cycle threshold, and the drive voltage and the drive voltage threshold, the motor can be adaptively controlled to stop working and reset, increase the motor speed or reduce the motor speed according to various tissue thickness conditions, and the motor can be controlled to rotate forward or reverse to drive the working part to work, thereby improving the working efficiency of the stapler.

The invention relates to the field of tile conveying equipment, in particular to a multifunctional tile conveyor which comprises a supporting bottom plate, a vertical plate is arranged on the rear portion of the upper end face of the supporting bottom plate, and a conveyor is arranged on the front portion of the upper end face of the supporting bottom plate. According to the tile conveyor, the functions of feeding, guiding, positioning and transporting are integrated, the functional diversity of equipment and the conveying efficiency of batch tiles can be effectively improved, meanwhile, the tile feeding stability and protection performance can be effectively improved in the mode that the tiles are supported and fed from bottom to top, and the tile conveying efficiency is improved. And by means of bearing type conveying of the three sets of conveying belts, the protection performance of the tiles during conveying can be effectively improved, and therefore the efficiency of follow-up batch conveying of the tiles is improved.

The application relates to the technical field of battery equipment, and discloses a battery formation capacity pressurizing system and a battery production line. The battery formation capacity pressurizing system comprises a hydraulic source and a plurality of actuators, the plurality of actuators are connected with the hydraulic source in parallel, in one actuator, the actuator comprises at least one hydraulic structure and at least one clamp structure, the hydraulic structure is connected with the hydraulic source, the clamp structure comprises a body part and a clamping part, the clamping part is slidably arranged on the body part, the clamping part and the body part form a containing space for placing a battery monomer, and a large surface of the battery monomer faces the clamping part, the hydraulic structure is installed on the body part, and a piston rod of the hydraulic structure is drivingly connected with the clamping part. The battery formation capacity pressurizing system provided by the technical scheme can improve the utilization rate of the hydraulic system and is convenient to maintain.

This utility model provides a bidirectional charging and discharging system for ship-shore use, relating to the field of ship energy supply technology. It includes a high-voltage input module, an AC power distribution module, a low-voltage power distribution module, an AC / DC conversion module, and cable equipment. The high-voltage input module connects to a shore-based AC power source, which is stepped down by a first transformer to supply power to the low-voltage power distribution module. The voltage is then stepped down by a second transformer and output as DC power via the AC / DC conversion module to charge the ship's energy storage unit. The AC / DC conversion module employs a bidirectional AC / DC conversion structure, enabling bidirectional power transmission between the ship and the shore-based power grid. The system uses a modular prefabricated structure, isolating the AC and DC side functional units to improve system integration and operational efficiency. It also ensures flexible switching between shore power supply and ship energy storage discharge during ship berthing, possessing excellent energy regulation capabilities and grid adaptability.

The invention relates to the technical field of electric vehicle energy management and charging control, and discloses a vehicle pile interaction robust optimization scheduling method considering behavior uncertainty, and the method comprises the steps: obtaining the historical working condition data of an electric vehicle, and constructing a working condition index database; retrieving a plurality of groups of historical track points matched with the current working condition in real time, and extracting a power extreme value at each scheduling moment to construct a power fluctuation envelope interval; according to the method, a multi-target optimization scheduling model with the optimal station domain total charging load curve stability and the lowest user side cost as targets is established, an envelope interval is used as a feasible region boundary of optimization calculation, and a vehicle pile cooperative charging control instruction is generated. The uncertainty constraint is converged from the statistical space to the compact physical feasible region, the power utilization rate of the power supply equipment in the charging station is effectively improved, and the response precision and the operation real-time performance of the charging control system are enhanced.

The invention discloses a differential pressure power generation and flywheel energy storage coupling system and a power generation method, the differential pressure power generation and flywheel energy storage coupling system comprises a differential pressure power generation system and a dynamic voltage recovery system, the dynamic voltage recovery system comprises a flywheel energy storage unit and a dynamic voltage restorer, under the condition that the voltage of the differential pressure power generation system is normal, the flywheel energy storage unit is charged, and the flywheel energy storage unit is recovered. Under the condition of voltage sag or voltage sag, the flywheel energy storage unit supplies power to the auxiliary power load, under the condition of voltage sag or voltage sag, the flywheel energy storage unit is charged through the dynamic voltage restorer, and under the condition that voltage sag or voltage sag recovers normal voltage, the auxiliary power load is supplied with power through the power grid. According to the scheme, through the coupling differential pressure power generation and flywheel energy storage technology, electricity generated by the expansion machine is stored at any time and taken at any time when used, under the condition that the voltage of the differential pressure power generation system is abnormal, the stability of the voltage is guaranteed through the dynamic voltage recovery system, and therefore the stability of the differential pressure power generation system in the gas power station and the electric energy utilization efficiency are improved.

The utility model relates to a tandem type double-rotor unmanned aerial vehicle transmission system, which is characterized in that reversing speed reduction units of a front rotor and a rear rotor are connected through a plurality of sections of synchronous long shafts, and the tandem type double-rotor unmanned aerial vehicle transmission system comprises a three-stage speed reduction structure, namely a first-stage synchronous belt speed reduction structure, a second-stage bevel gear speed reduction structure and a third-stage planetary gear train speed reduction structure, the second-stage bevel gear speed reduction realizes power transmission through a bevel gear, and the third-stage planetary gear train speed reduction transmits power to a rotor shaft through meshing of a planetary gear, a sun gear and a gear ring; the system solves the problems that a traditional tandem rotorcraft transmission system is single in structure, slow in clutch response, difficult in engine starting, insufficient in power, poor in emergency risk avoiding capacity and difficult to maintain, and the performance and reliability of the unmanned aerial vehicle are improved.

The utility model relates to a hybrid power driving device and a vehicle, the hybrid power driving device comprises a differential mechanism, a first driving mechanism and a second driving mechanism, and the differential mechanism comprises a differential mechanism and a first transmission assembly in transmission connection with the differential mechanism. The second transmission assembly and the third transmission assembly are in transmission connection to the output end of the motor, and the transmission ratios of the second transmission assembly and the third transmission assembly are different. The second driving mechanism comprises an engine and a fourth transmission assembly in transmission connection with the output end of the engine, and the fourth transmission assembly is in separable transmission connection with the first transmission assembly. The hybrid power driving device is configured in the mode that the second transmission assembly and the third transmission assembly are separately connected to the first transmission assembly in a transmission mode. In the embodiment of the invention, the hybrid power driving device can have multiple modes and is suitable for multiple conditions, and it is guaranteed that sufficient driving force is output under the multiple conditions.

The present application relates to the technical field of prediction optimization, and discloses a photovoltaic power prediction optimization method and system for a photovoltaic power station, which comprises the following steps: step 1, normalizing photovoltaic probability prediction into quantile form, and determining a default probability budget and a standby trigger probability budget; step 2, comparing a confidence level prediction value with a maximum available output to obtain a baseline output; step 3, determining an upward adjustment standby capacity and a downward adjustment standby capacity, and setting a power range constraint; step 4, determining a bid curve segmentation, a standby quota and an energy storage plan; step 5, calculating a real-time deviation, and determining an error cost threshold; step 6, determining energy storage supplement charging capacity, discharging capacity and necessary limiting generation capacity, and solving a minimum total cost of rescheduling; and step 7, counting a default rate and a standby trigger rate, updating unified risk budget parameters, and generating a default and standby trigger probability budget. The present application realizes the efficiency and stability of power grid dispatching, and improves the power generation utilization rate of the photovoltaic power station.

The application relates to the technical field of ship power system control, in particular to a mechanical-electrical hybrid propulsion ship power system and a control method thereof. The application uses a bidirectional motor as a mechanical energy and electrical energy conversion node, and cooperates with a control and switching device to make the propulsion system and the power system communicate in the form of electrical energy, realizes power mutual conversion and application between the two systems, and effectively improves the power utilization efficiency of the ship power system by combining the corresponding control method. The application realizes the communication between the propulsion system and the power system, that is, the relative independence of the two systems is maintained, the propulsion system and the power system can be backed up for each other, and the vitality of the propulsion system and the power system is greatly improved. The application improves the low noise of the ship under low-speed working conditions, the power crossover makes the arrangement of the propulsion system more flexible, and helps to improve the overall space utilization efficiency of the ship.

The invention belongs to the technical field of energy conservation and environmental protection of photovoltaic buildings, and particularly relates to a novel phase-change refrigeration glass enclosure structure capable of providing cold and heat, which comprises a photovoltaic phase-change glass window, a thermoelectric air conditioning system and a control system, the photovoltaic phase-change glass window is mounted on a wall of a building house, and the thermoelectric air conditioning system is arranged above the glass window. The photovoltaic phase-change glass window is composed of a window framework and a rotatable photovoltaic phase-change shutter mechanism. The window framework is composed of a window frame, first glass and second glass. The rotatable photovoltaic phase change shutter mechanism comprises a first driver, a second driver, a first swing arm, a second swing arm, a third swing arm and a motor, and the foldable shutter thermoelectric air conditioning system comprises a first fan, a second fan, a battery, an electric heating device and a switch. The control system comprises a controller, an outdoor temperature sensor, an indoor temperature sensor and a magneto-optical effect sensor. Solar photo-thermal cooperative utilization is achieved, building energy consumption can be effectively reduced, and the solar energy utilization rate is increased.

This invention discloses a power control method, apparatus, storage medium, processor, and electronic device. The method includes: acquiring a target dataset, wherein the target dataset includes: first data, second data, and third data; determining charge / discharge power information based on the target dataset, wherein the charge / discharge power information is used to record the charge / discharge power of a power battery installed in a target vehicle at multiple different temperatures and multiple different states of charge; and controlling a power supply circuit installed in the target vehicle to supply power according to the charge / discharge power information, so as to enable power interaction between the power battery and the power supplier. This invention solves the technical problems of short battery life, low power utilization efficiency, and poor user experience associated with traditional power control methods.

The invention provides an electric energy quality disturbance signal classification method and device considering new energy access, and relates to the technical field of data analysis, and the method comprises the steps: obtaining an electric energy quality disturbance signal generated by a new energy power station; variational mode decomposition parameter optimization is carried out based on a sparrow search algorithm, and optimal decomposition parameters of various disturbance signals are determined; decomposing the disturbance signal into a plurality of sub-signals by using an optimal parameter variational mode; and training a classifier by using the constructed feature set, inputting the disturbance signal into the training classifier after training is completed, and outputting the type of the disturbance signal. Through variational mode decomposition parameter optimization based on a sparrow search algorithm, accurate decomposition of signals is realized, much noise caused by decomposition errors is avoided, and the accuracy of signal classification is improved.

The application relates to the charging technical field and discloses a charging power distribution method and electronic equipment. The charging power distribution method comprises the following steps: acquiring pile charging demand information of each charging pile in a target charging group, the target charging group comprising at least two charging piles; determining group actual distribution power of the target charging group, the group actual distribution power being the highest power distributed to the target charging group; determining pile upper limit power of each charging pile in the target charging group; and determining pile actual distribution power of each charging pile according to the group actual distribution power, the pile charging demand information and the pile upper limit power. According to the charging demand of a charging vehicle, the output power of each charging pile can be flexibly adjusted, the charging demand of each charging vehicle can be maximally satisfied, meanwhile, the recovery and release of the redundant power among the charging piles can be realized, and the power utilization efficiency is improved.

The invention discloses an energy management system and management method for an intelligent building, relates to the technical field of electric energy analysis and management, and solves the problems that in electric energy management of the intelligent building, management time periods adapted to own characteristics of different intelligent buildings are neglected, and in management of electric energy according to the management time periods, the management time periods are neglected. And adaptive discharge operation is difficult to carry out on different areas. According to the method, the dynamic time periods and the management areas of the intelligent building are obtained, the electricity consumption characteristic values of the management areas in the dynamic time periods are obtained, the standard electricity consumption of the management areas in the next dynamic time period is obtained based on the electricity consumption characteristic values, and the standard electricity consumption is summed to obtain the standard total electricity consumption of the intelligent building; obtaining important factors of each management area, sending a discharge instruction based on the standard total power consumption, and performing discharge operation on each management area based on the discharge instruction and the important factors; electric energy distribution can be flexibly controlled, and the overall electric energy utilization efficiency of the intelligent building is improved.

The invention relates to the field of dust collector shell processing, in particular to a processing device for dust collector shell processing, which comprises a material guiding device for material guiding and supporting, a workpiece blanking bin is arranged on the upper end surface of the material guiding device close to the middle part, and a driven gear is arranged on the side end surface of the material guiding device close to the rear end. When a dust collector workpiece is shaped, the servo motor can synchronously drive the dust collector shell pressing die and the dust collector shell punching die to circularly move up and down on the upper part of the pressing die through the two groups of transmission crankshafts and transmission guide plates; meanwhile, the transmission crankshaft can synchronously provide intermittent power for the material guiding device through a first synchronous belt, a driven gear and the transmission device, so that the material guiding device can be matched with the dust collector shell pressing die and the dust collector shell punching die to move up and down to accurately guide workpieces in the pressing die to the bottom of a machining station; and the machining efficiency of the equipment on the dust collector shell workpiece is effectively improved.