95 results about "Maximum efficiency" patented technology

The invention relates to the technical field of power system operation or management, in particular to a partial discharge monitoring strategy optimization method and system based on dynamic resource allocation, and the method comprises the steps: constructing a three-stage monitoring system comprising a sensor node, a sink node and a cloud processing center, firstly initializing monitoring parameters, and then obtaining system state information periodically or in a triggering manner, calculating the risk level of each monitoring point in combination with a dynamic risk evaluation model; constructing an efficiency-maximized resource allocation optimization model based on risk levels and resource constraints, solving an optimal scheme by adopting an improved multi-target particle swarm algorithm, and issuing the optimal scheme to each node to adjust monitoring behaviors to form closed-loop optimization; and meanwhile, model parameters are dynamically updated through an online learning mechanism. According to the method, dynamic matching of risks and resources is realized, the monitoring accuracy and the resource utilization rate are improved, the adaptability of the system to the equipment state and the environment change is enhanced, and the method is suitable for partial discharge monitoring scenes of various power equipment.

The invention relates to the technical field of torque converters, in particular to a hydrodynamic transmission power chain optimization method and system.The method comprises the steps that a hydrodynamic torque converter parameterized geometric model is built, and a pump impeller blade outflow angle, a guide wheel runner input / output angle, turbine blade geometric parameters and the relative position of a pump impeller and a turbine are set as design variables; based on CFD three-dimensional flow field simulation, a k-epsilon model is adopted for rapid analysis, an SST model is adopted for transient simulation, and simulation data under different variable combinations are obtained; training a BP neural network by using the simulation data, inputting each design variable, and constructing a multi-target optimization model with maximization of efficiency and minimization of noise as targets; a design variable combination is selected in the Pareto optimal solution set, a model is reconstructed, and an optimized hydraulic torque converter is obtained; according to the method, the problems that the design optimization efficiency of the hydraulic torque converter is low, the parameter adjusting period is long, and good compromise between the transmission efficiency and noise suppression is difficult to obtain can be solved.

Provided is a heat gun formed by wave-type heating bodies. The heat gun includes a housing assembly and a heating assembly mounted in the housing assembly, where an air supply assembly is fixedly mounted in the housing assembly. The heating wire is wound into a wave-type structure by dedicated equipment. Compared with a traditional slingshot-wire-type structure, the wave-type structure is capable of resisting deformation of the heating wire at a high temperature and in a process from a high temperature to a normal temperature such that defects caused by thermal expansion and contraction when the heating wire operates or stops can be avoided. After the wave-type structure of the heating wire is wound around a mica plate, a direction of the wave-type structure is exactly perpendicular to a direction of an air channel such that wind generated by a fan behind can blow out heat with maximum efficiency.

The invention relates to a machine learning and physical priori knowledge constraint-based double perovskite halide material layer-by-layer screening method, equipment and a medium, and aims at solving the problems of low efficiency, large candidate space and insufficient multi-performance balance of a traditional data-driven screening framework, and constructing a cascade screening method taking spectral maximum efficiency (SLME) as a guide. Discovery of a high-precision photovoltaic material is realized through a progressive decision chain strictly following the sequence of space group symmetry, SLME, band gap characteristics and thermodynamic stability. A candidate material space is constructed based on an element coordination environment and a charge neutrality principle, the structural stability is primarily screened by using a new tolerance factor, then layer-by-layer screening is performed sequentially through a machine model, and finally a high-performance material is screened out. Compared with the prior art, the invention provides a layer-by-layer screening method which takes SLME as a core and is constrained by physical priori knowledge, and multi-dimensional efficient screening from structure, optics, electricity to stability is realized.

The embodiment of the invention discloses a control method and device of a wireless power transmission system, equipment and a storage medium, the wireless power transmission system at least comprises a transmitting end and a receiving end which are in communication connection, and the method is applied to the receiving end. The method comprises the steps of obtaining an output voltage of a receiving end, an output voltage reference value and an estimated value of a first pulse density instruction of a transmitting end, wherein the output voltage is used for reflecting voltages at two ends of a to-be-powered load; determining an internal control quantity by using the output voltage, the output voltage reference value and a preset proportional-integral controller; determining a second pulse density instruction of the receiving end according to the estimated value and the internal control quantity; and sending the second pulse density instruction to the transmitting end. The power efficiency decoupling control method is realized through the method, the pulse density of the transmitting end can follow the receiving end, the interference of maximum efficiency tracking on voltage control is avoided, and the speed of the MEPT is improved.

The invention discloses an optimal control method for load shedding water hammer pressure of a pumped storage power station containing a fixed-variable speed unit. The method comprises the following steps: firstly, based on a pump turbine full-characteristic curve, performing variable-speed unit efficiency optimization, and determining the highest efficiency of a variable-speed unit and the corresponding optimal rotating speed; then, establishing a transition process mathematical model of the water delivery and power generation system of the pumped storage power station containing the constant-variable speed unit, and calculating Pareto leading edges taking the maximum pressure of a volute and the minimum pressure of a draft tube as optimization targets under different control schemes by adopting different guide vane closing rules for the constant speed unit and the variable speed unit; and finally, carrying out normalization processing on the maximum pressure of the volute and the minimum pressure of the draft tube, establishing a transient characteristic multi-target evaluation function, and screening out an optimal control scheme from the Pareto frontier. By means of the method, the water hammer pressure extreme value caused by hydraulic interference between the constant-speed unit and the variable-speed unit can be effectively improved, the operation stability and safety of a power station are improved, and good engineering adaptability is achieved.

The application discloses a kind of fuel cell centrifugal air compressor optimization design methods based on advanced analysis, first build centrifugal air compressor performance test platform, then test to a certain centrifugal air compressor, establish its numerical calculation model and simulation, then the test value and simulation value of performance parameter are compared and analyzed;After verification, the analysis model and advanced analysis model of the centrifugal air compressor are established;Finally, the structural parameters of centrifugal air compressor are modified, the numerical calculation model of centrifugal air compressor with different structural parameters is established and simulated;Then the analysis model and advanced analysis model of different structural parameters are established, to reduce loss and improve efficiency as target, the structural parameters are iteratively optimized, until the structural parameters of centrifugal air compressor that meet minimum loss and maximum efficiency are obtained simultaneously.The application starts from the angle of energy loss, and realizes the high-efficiency and low-loss optimization of centrifugal air compressor by using advanced analysis.

The invention relates to a forklift truck (2) comprising a hydraulic system (10) and at least one hydraulically operated component (30), as well as a method for operating a hydraulic system (10) of the forklift truck (2). The hydraulic system (10) comprises a first hydraulic pump (11), a second hydraulic pump (12), and a hydraulic line system (15). The hydraulic line system (15) is designed and configured to connect the hydraulically operated component (30) selectively either exclusively to the first hydraulic pump (11), exclusively to the second hydraulic pump (12), or simultaneously to both the first hydraulic pump (11) and the second hydraulic pump (12). The first hydraulic pump (11) has a maximum efficiency at a first flow rate (102) and a first operating pressure (101). The second hydraulic pump (12) has a second maximum efficiency at a second flow rate (102) and a second operating pressure (101).The first operating pressure (101) is greater than the second operating pressure (101) and / or the first volume flow rate (102) is smaller than the second volume flow rate (102).

The invention discloses an inverse design method for a dual-mode internal contraction combined air inlet channel, and relates to a hypersonic air inlet channel of an aircraft. Comprising the following steps: designing a bimodal basic flow field based on a high / low-speed modal cruise Mach number as a design point; the inlet shape design of the air inlet channel is combined with the flight-launch integrated matching requirement; designing an air inlet compression molded surface by a streamline tracking technology; designing the optimal position of the rotating shaft of the splitter plate based on the maximum splitting control efficiency; designing a flow distribution plate rotation angle according to a flow distribution requirement in a flight envelope; the expansion effect caused by rotation of a turbine channel splitter plate and the compression effect generated by area shrinkage in a shared flow channel are comprehensively considered; and a turbine channel and a stamping channel are designed to be separated from each other. The dual-mode conversion adaptability of the internal contraction combined air inlet channel is remarkably improved, and the flow distribution requirements of all channels under different flight working conditions are met.

Computerized methods of classifying compute-intensive and memory-intensive applications are disclosed. A maximum efficiency for a user application is identified. A peak performance for a machine implementation is identified under one or more Quality of Service (QoS) parameters. Actual performance and resource usage of the application implementation using one or more performance vectors is measured and compared with the maximum efficiency and the peak performance. One or more areas of interest are identified using the performance vectors. If a critical hotspot area is identified from the one or more areas of interest, at least one feature is extracted from the critical hotspot area. An application signature is built if an approximation of performance is acceptable, based on the extracted features. The compute- and memory-intensive application may be classified based on the application signature.

The present application relates to the technical field of power system operation or management, and particularly to a partial discharge monitoring strategy optimization method and system based on dynamic resource allocation, which initializes monitoring parameters by constructing a three-level monitoring system including sensor nodes, aggregation nodes and a cloud processing center, periodically or triggeredly acquires system state information, calculates the risk level of each monitoring point in combination with a dynamic risk evaluation model, constructs a resource allocation optimization model with maximum efficiency based on the risk level and resource constraints, solves the optimal scheme by using an improved multi-objective particle swarm algorithm, issues it to each node to adjust the monitoring behavior, forms a closed-loop optimization, and dynamically updates the model parameters through an online learning mechanism. The present application realizes dynamic matching of risk and resources, improves monitoring accuracy and resource utilization, enhances the adaptability of the system to changes in equipment state and environment, and is suitable for partial discharge monitoring scenarios of various power equipment.

The control device scans the output voltage of the first converter within a predetermined range to search for a maximum-efficiency voltage. At that time, the control device controls the output voltage of the first converter to the first voltage and acquires the output power of the first converter at that time as the first power, controls the output voltage of the first converter to the second voltage changed by the first change width from the first voltage and acquires the output power of the first converter at that time as the second power, and controls the output voltage of the first converter to the third voltage changed by the second change width from the second voltage in order, and sets the second change width to a value larger than the first change width when the second power is smaller than the first power.

The invention discloses an air cooling unit efficiency optimization method and system based on multi-branch design, and relates to the technical field of air cooling control, and the method comprises the steps: collecting the total load demand of an air cooling unit, and the operation parameters and environment parameters of each branch; establishing an efficiency evaluation index by calculating the heat exchange amount and the energy consumption of each branch; classifying the branches into a high-efficiency branch group and a low-efficiency branch group; the total heat exchange amount of the high-efficiency group is obtained according to the heat exchange amount of each branch in the high-efficiency branch group, if the total heat exchange amount is larger than the total load requirement, the target heat exchange amount is obtained according to the heat exchange amount distribution load, and if the total heat exchange amount is not larger than the total load requirement, the branch with the maximum efficiency evaluation index in the low-efficiency branch group is added into the high-efficiency branch group; and the operation parameters are adjusted according to the target heat exchange amount, and branches in the low-efficiency branch group are closed. On the premise of guaranteeing that the load requirement is met, the efficient branch is used to the maximum extent, the situation that the load cannot be met due to blind closing of the low-efficiency branch is avoided, and stable operation is kept while the overall operation efficiency of the air cooling unit is improved.

The invention discloses a noise performance calibration method for a range extender of a new energy automobile, and the main conception of the method is as follows: firstly, formulating a range extender preliminary selection point by using a simulation result; based on the requirements of multiple target performances, obtaining an initial calibration strategy through the initial point selection; after the initial calibration strategy is tested on the power assembly rack, range extender test selection points are output, and whether the test selection points meet all requirements or not is judged by combining the multi-target performance requirements; and after the initial calibration strategy is revised according to the test selection points meeting the requirements in combination with the real vehicle test, the multi-target performance requirements are combined again, and if it is determined that the revised result meets the performance requirements, a final range extender calibration strategy is obtained. According to the method, early-stage guidance is carried out on formulation of a range extender noise performance calibration strategy and optimization of a vehicle body structure based on NVH, and rapid implementation of real vehicle engineering can be further guided in a later stage, so that the quietness problem of the range extender is solved at the maximum efficiency, and meanwhile, the multi-dimensional performance requirement of the vehicle can be considered.

The invention discloses a novel combined cooling heating and power system and an optimization method, device, medium and product thereof, and relates to the field of low-temperature waste heat recovery. The optimization method comprises the steps that the temperature of waste heat to be recovered is obtained, the working medium critical temperature and working medium heat capacity of a preselected working medium are combined, and a preselected working medium is obtained through a working medium screening model; determining an optimal working medium of an organic Rankine cycle subsystem of the novel combined cooling heating and power system; according to the temperature of the waste heat to be recycled, an optimization model with maximum efficiency, maximum return on investment and maximum carbon dioxide emission reduction as objective functions and with a decision variable preset range as a constraint condition is established; and solving the optimization model by using a non-dominated sorting genetic algorithm to obtain an optimal decision variable, so that the novel combined cooling heating and power system recovers the waste heat to be recovered based on the optimal working medium and the optimal decision variable. The waste heat recovery efficiency of the novel CCHP system is improved.

This application relates to an odd-even layer winding structure, a stator assembly, and a motor. The stator assembly has 2p poles, and the stator core has Z stator slots. Within these Z slots, every three slots form a group. In each group, the left and middle slots are sequentially arranged with slot layers L1, L2…Lm-1, and the right slot is also sequentially arranged with slot layers L1, L2…Lm. The odd-even layer winding structure includes three phases of winding lines. Each phase includes n winding branches, and each branch includes several hairpin coils. The hairpin coils are configured with m / 2+1 different layer crossing methods: crossing slot layers L1 and L2, L3 and L4…Lm-1 and Lm, and Lm-1 and Lm-1. The odd-even layer winding structure provided by this application can effectively improve the motor's peak power, high-efficiency area ratio, and maximum efficiency.

The application discloses a method for improving the accuracy of steel plate defect detection and the fault tolerance rate of a camera, comprising arranging a group of cameras above and below the steel plate, the capture ranges of the cameras overlapping; firstly, carrying out hot state defect detection, and then carrying out cold state defect detection; collecting two-dimensional image features and color information of the defects through a color camera, recording the positions of the defect targets on the plate, recording the similarity of the defects, judging whether periodicity exists, combining the upstream hot state inspection mother plate number with a downstream table inspection system, and increasing information interaction and reminding functions; since the defects and pseudo defects have different color and shape features, the defect categories can be judged through the collected defect shapes, periodicity, color and position. The application has the advantages of improving the accuracy of defect discrimination with the maximum efficiency, improving the fault tolerance rate of the camera, reducing the labor intensity of workers, reducing safety hazards, and ensuring that the data is accurate and correct.

The present application belongs to the technical field of aviation fuel structure design, and particularly relates to a method and structure for reducing fuel violent shaking. The structure comprises a fuel tank shell, a rear guide plate, a rear flow divider, a fuel tank interior, a crescent guide plate, a front guide plate and a front flow divider. The overall shape of the fuel tank is a long cylindrical ellipse, which is symmetrical in front and back and symmetrical in left and right. The fuel tank interior is arranged with a flow guiding and dividing mechanism composed of the rear guide plate, the rear flow divider, the crescent guide plate, the front guide plate and the front flow divider. The fuel with opposite speed components collides, thereby reducing the overall momentum of the fuel, which conforms to scientific principles. The flow guiding and dividing mechanism can be cut from the same material as the fuel tank, has a simple shape, no thickness requirement, is directly welded on the fuel tank shell, is economical and practical, does not need to be maintained, and has strong practicality. The position, shape and size of the flow guiding and dividing mechanism are set precisely, and the maximum efficiency of the internal collision of the oil can be achieved to achieve the purpose of fuel anti-shaking.

The application discloses a kind of gas turbine energy efficiency optimization methods, comprising: extracting multidimensional input features from gas turbine operating data, standardization and normalization processing are carried out to data;Gradient boosting regression model is used to carry out regression prediction to each target variable respectively, and the prediction result is recovered to ensure prediction accuracy by anti-standardization;The double-layer coupled multi-objective optimization model of upper layer and lower layer is established, the maximum efficiency, the minimum emission and the optimal economy are used as multi-objective in the upper layer, and the physical constraint and the maximum scheduling benefit are used as target in the lower layer, and the Pareto frontier solution set is generated by improved adaptive NSGA-II;The optimal solution set is calculated by applying the TOPSIS decision method to the weighted distance, the optimal solution is selected after the closeness degree is sorted, and the optimal operating parameter is output to provide support for actual decision.

The application relates to a low-grade waste heat utilization design method based on a medium-temperature compressed energy storage system, which comprises the following steps: adding a supercritical CO2 Brayton cycle as a system bottom cycle in the medium-temperature compressed air energy storage system, arranging a simulation analysis model for establishing the low-grade waste heat utilization of the medium-temperature compressed energy storage system; according to the simulation analysis model, a target function is established with the system total cycle efficiency eta en as an optimization target; in the case of meeting preset constraint conditions, an interpolation method is used to solve the target function, so that the parameters of CO2 are obtained, the constraint conditions include energy conservation constraint, heat exchanger two-side temperature constraint and CO2 transcritical state constraint; then, the specific parameters and efficiency of the bottom cycle are determined according to the parameters of CO2, and the maximum efficiency of the total cycle is obtained. The application reduces the use of heat exchangers, and further reduces heat exchange loss, so that energy is efficiently utilized.

The invention relates to the field of color sorters, and discloses a uniform feeding device of a granular material chute type color sorter, the uniform feeding device comprises a machine body, the top end of the outer wall of the machine body is fixedly connected with a top frame, the inner side wall of the top frame is provided with a uniform feeding mechanism, and the bottom end of the machine body is provided with a classification discharging port; a vibration motor is fixedly connected to the top end of the outer wall of the machine body, and a vibration feeder is arranged on the surface of the vibration motor; and the uniform feeding mechanism is used for carrying out step-by-step conveying and discharging on the particle materials. The uniform feeding mechanism is installed above the feeding port, materials coming from an elevator can be discharged at a low speed through horizontal conveying of the uniform feeding mechanism, and the materials can fall onto the vibration feeder of the color sorter at a low fall, so that the vibration feeder can accurately adjust the flow entering a channel by adjusting the frequency, and the feeding efficiency of the color sorter is improved. And the optimal working effect and the maximum efficiency of the color sorter can be ensured only by controlling the flow.

The paper presents an invention regarding a SPM smart power module, intended for the creation of distributed, safe and efficient energy networks. An elementary module is composed of an innovative Carnot Battery, with high power density, consisting of a heat engine / heat pump whose working agent (gas or vapor) goes through a Carnot / Ericsson / Stirling cycle and which transfers thermal energy between two accumulators with different temperatures. In supply mode, the cycle is run in the direct direction and supplies mechanical / electrical energy, and in charging mode, the heat pump receives energy from the outside (from the network or from renewable sources), and the cycle is run in the opposite direction, transferring thermal energy from the cold reservoir to the hot reservoir. The maximum efficiency of the battery is ensured by at least two isothermalizers, similar to the one described in PCT / R02023 / 050009. Through a system of tanks, heat exchangers, circulation pumps, solenoid valves and pipes, the elementary module can receive a series of extensions, both on the thermal energy capture and distribution side. An intelligent processor collects signals from the SPM system, from a dispatcher, from the Internet, etc, processes them, then sends commands to the motors that actuate the solid pistons of the isothermalizers, the flow regulators of the liquid pistons and of the cooling systems, the solenoid valves, the circulation pumps, in such a way as to ensure the maximum exergetic and economic efficiency of the module, the flattening of load peaks, the maximum safety, the maximum utilization coefficient of all components. Any energy production unit and any consumer can be included in a smart module that ensures the storage, then the supply of the entire energy offers, ensuring consumers a safe, uninterrupted supply.

The embodiment disclosed herein comprises a data center system including processing units (xPUs) and programmable logic devices. The xPUs can implement a design in hardware to perform specific operations appropriate to that design. The programmable logic devices can implement different designs based on the operations to be performed. For example, a plan can be created to process a workload received by the system. The plan can include several phases, which can be assigned to either the xPUs or the programmable logic devices based on the efficiency of performing operations within those phases. In this way, the system can operate with maximum efficiency when processing the workload.

The invention discloses a uniform sintering method of rotary body curved surface nano-silver, which comprises the following steps: sintering planar nano-silver in different regions according to different laser reflection angles, and determining optimal laser sintering parameters according to the resistance of the nano-silver in different regions after sintering; according to the optimal laser sintering parameters, the rotary body nano-silver is divided into a plurality of sintering strips, the laser scanning range corresponding to each sintering strip is obtained, and then the laser reflection angle needed by each sintering strip is calculated; under the conditions of the determined scanning frequency and the corresponding laser reflection angle, sintering is started from the center point of each sintering strip by adjusting the laser power corresponding to each sintering strip, so that the laser energy per unit length on each sintering strip is the same, and uniform sintering of the nano-silver on the curved surface of the rotary body is realized; according to the method provided by the invention, maximum-efficiency sintering is realized on the premise of ensuring uniform conductivity of the nano-silver, and uniform sintering of the curved-surface nano-silver of the rotary body is realized by adjusting laser energy.

The present invention discloses a movable wall reinforcement device, which relates to the technical field of wall reinforcement equipment for construction projects. The technical solution is as follows: the reinforcement device includes a support folding device, a reinforcement assembly, and a base plate assembly. The top surface of the base plate assembly is connected to the bottom surface of the support folding device, and the bottom of the reinforcement assembly is located above one side of the top surface of the base plate assembly. The support folding device includes a slide seat, a hydraulic rod, a connecting block, a lifting assembly, a guide connecting frame, a threaded rod, and a limit ring. The beneficial effects of the present invention are: by connecting the connecting block at the top of the slide seat with the bottom end of the hydraulic rod, the angle of the hydraulic rod can be adjusted to adapt to different wall reinforcement requirements; the staff can adjust the number of support folding devices installed on the slide column according to the pressure-bearing capacity of the wall to achieve maximum efficiency adaptation to the supporting force; the labor cost and material cost can be reduced, and the construction efficiency can be improved.

The utility model relates to the technical field of power transmission lines, in particular to a stay wire foundation and a tower structure, and the stay wire foundation comprises a foundation body which comprises a corner structure and extension structures located on the two sides of the corner structure; at least one part of the pull ring is arranged in the corner structure of the base body, and at least the other part of the pull ring protrudes out of the base body so as to form a connecting part capable of being connected with a stay wire; the stay wire foundation is used for being matched with a tower structure for use, the foundation body is used for being buried in a soil layer, and the pull ring is used for being connected with one end of a stay wire so as to be connected with the tower structure through the stay wire. According to the scheme, the defects that in the prior art, the maximum efficiency of a contact surface cannot be fully exerted when a stay wire disc is horizontally placed, and the size cannot meet the design requirement due to the fact that the angle is difficult to accurately control when the stay wire disc is obliquely placed are overcome, and the purposes of improving the stability and construction precision of a stay wire foundation and simplifying the construction difficulty are achieved.

The utility model discloses an aluminum strip flat port chamfering milling die, and relates to the technical field of aluminum strip machining. The milling mold side plates are arranged on the front side and the rear side of the lower end of the milling mold upper plate respectively, a milling mold bottom plate is arranged below the milling mold side plates, a rotary positioning plate is arranged on the upper side of the right end of the milling mold upper plate, and a positioning shaft is arranged on the inner side of the right end of the rotary positioning plate; a stand column fixing base is arranged on the inner side of the left end of the rotary positioning plate, and a limiting fixing plate is arranged on the outer side of the upper end of the stand column fixing base. The problems that in the assembling production process, the flat end of an aluminum strip is generally required to be milled into a fillet, due to the fact that the aluminum strip is low in hardness, small in width and inconvenient to use laser or linear cutting, the production efficiency cannot reach the maximum efficiency of equipment assembling, the whole-line assembling production progress is slowed down, and meanwhile in most existing equipment, the production cost is low are solved. And due to overlarge volume and integrated molding, the technical problems of inconvenience in disassembly, installation and transportation operation are solved.

A variable volume plenum for use in a wave pool comprising at least one wave generating chamber in pneumatic communication with a plenum. The plenum is configured to have a variable volume such that when the pressure increases in the plenum, the variable volume plenum will increase in volume, and when pressure drops in the plenum, the variable volume plenum will retract so the fans can stay at maximum efficiency.

The application provides a motor calibration method, which comprises the following steps: obtaining a calibration point matrix, and then obtaining a direct-axis current search interval of a target working condition; when the direct-axis current search interval is not empty, searching for an optimal working current of the target working condition by using a preset search algorithm; when the direct-axis current search interval is empty, stopping searching for the optimal working current of the remaining working conditions under the target rotating speed, and taking the working conditions under other remaining rotating speeds as next target working conditions, so that the fast calibration of each working condition point is realized while the accuracy requirement is ensured, the calibration time is shortened, the maximum efficiency control is realized in the form of searching, and the motor external characteristic under the current rotating speed is autonomously determined in the case that the current search interval is empty, so that the self-adaptation is realized.

The present invention relates to the field of new energy technology, and in particular to a maximum power point tracking method, device, equipment and medium for a photovoltaic system. The maximum power point tracking method for a photovoltaic system provided by an embodiment of the present invention uses sawtooth wave fluctuations to perturb the input voltage to track the maximum power point during the tracking process, that is, the input voltage is perturbed with a preset step size so that it is perturbed between a first perturbation state, a second perturbation state and a third perturbation state. Therefore, perturbation in the form of sawtooth wave fluctuations can track the maximum power point more quickly, greatly improving the tracking efficiency and tracking speed, so that the energy transmitted by the photovoltaic system can be input to products such as batteries with maximum efficiency, thereby improving the performance of the battery, and also improving the economy and reliability of solar power generation and its adaptability to environmental changes.