28results about How to "Low balance" patented technology

The invention discloses a large language model parameter fine tuning method, system and device, a storage medium and a product, and relates to the field of natural language processing. The fine tuning method comprises the steps that a pre-training model and a parameter matrix of the pre-training model are acquired, a parameter fine tuning module is arranged on a self-attention layer of the pre-training model, the parameter fine tuning module comprises LoRA modules of different task types and a router, each LoRA module comprises a general feature matrix and a specific feature matrix, and the general feature matrixes of the multiple LoRA modules are shared; obtaining a fine tuning data set; loading and freezing a parameter matrix of the pre-training model, and initializing parameters of a parameter fine tuning module; and performing fine tuning on the parameters of the parameter fine tuning module based on the fine tuning data set to obtain a fine-tuned large language model. Parameters of the MoE architecture are remarkably reduced, it is ensured that the model captures differences of various tasks to the maximum extent, and the cross-task generalization of the model is ensured.

The invention discloses an electrical equipment operation fault monitoring system, and belongs to the technical field of electrical equipment fault monitoring. Through combination of various sensors, comprehensive real-time monitoring of electrical equipment is realized, running state data of the equipment is captured in real time, comprehensiveness and accuracy of the data are ensured, potential equipment fault types can be accurately identified through digital processing and deep feature extraction, the accuracy and timeliness of fault diagnosis are effectively improved, and the fault diagnosis efficiency is improved. Operation data of multiple devices are integrated through the industrial Internet of Things, the range and precision of fault diagnosis are improved through data sharing and multi-device correlation analysis, faults jointly caused by the multiple devices are comprehensively analyzed and positioned, an intelligent fault diagnosis and optimization scheme is provided for a complex device group, and the fault diagnosis efficiency is improved. The data aggregation optimization unit effectively optimizes the overall operation state of the equipment by adjusting the operation parameters of the equipment, avoids the problems of load imbalance and the like, and improves the operation efficiency of the system.

The invention relates to the technical field of air blowers, in particular to an energy-saving air blower for a roasting furnace, which comprises a shell and a driving frame rotationally arranged in the shell, a plurality of impeller blades are arranged on the driving frame, a driving disc is arranged on the driving frame, and a connecting rod assembly is arranged on the driving disc; an air inlet pipe is arranged on the shell; a fixing disc is arranged on the air inlet pipe, an adjusting mechanism is arranged on the fixing disc, the adjusting mechanism comprises a worm gear and a worm, angle adjustment is achieved on impeller blades, the air volume adjusting function is directly integrated in an impeller area, and indirect influences of adjustment of a traditional diffuser on the air volume are avoided; and the self-locking characteristic of the worm gear and the worm is utilized to ensure that the adjusted impeller blade angle does not deviate under the influence of vibration or external force, and the stability is enhanced. And the driving disc can be driven by the adjusting mechanism in the process of rotating along with the driving frame. The purposes of optimizing an airflow path, reducing energy loss and improving the overall efficiency of the air blower are achieved through angle adjustment of the impeller blades.

The invention discloses a rotating machine fault diagnosis method based on a conditional decoupling representation enhanced network, and the method comprises the steps: capturing fault features from a known source domain and an unknown target domain for an acquired rotating machine vibration signal through a deep convolution feature extractor for a scene of rotating machine data category imbalance and cross-domain fault diagnosis; high-quality class semantic information is generated through a decoupling representation enhancement module to enhance minority class features in a high-dimensional feature space, so that inter-class data distribution is balanced, the influence of number difference of different classes of samples is reduced, then, the attention degree on minority classes is improved through condition discrimination comparison loss, and the accuracy of classification is improved. The intra-class feature compactness of the same class cross-domain is enhanced; and finally, a required unbalanced domain generalization mechanical fault diagnosis model is formed. According to the method, the influence of class imbalance can be overcome, the generalization ability and robustness of an unknown target domain can be improved, and the accuracy of rotating machine fault diagnosis is effectively improved.

The utility model provides a vacuum chuck device suitable for various wafer sizes, which comprises an upper chuck body and a lower chuck body, the bottom surface of the upper chuck body is fixed on the top surface of the lower chuck body, and the upper chuck body comprises an external O-shaped rubber ring, a middle O-shaped rubber ring, an internal O-shaped rubber ring and a metal surface. The outer O-shaped rubber ring, the middle O-shaped rubber ring and the inner O-shaped rubber ring are concentrically fixed to the top face of the metal face, a plurality of air holes are formed in the metal face along the inner O-shaped rubber ring, a plurality of fan-shaped annular grooves are formed in the portion, between the middle O-shaped rubber ring and the outer O-shaped rubber ring, of the metal face, and the air holes are formed in the fan-shaped annular grooves. A connecting hole is formed in the center of the bottom face of the lower sucker body. According to the utility model, a plurality of O-shaped rubber rings are used for adsorption, the wafer is not in direct contact with a metal surface, the wafer breaking probability is reduced, and the wafer clamping device is suitable for wafers of various different sizes.

The utility model provides a wear-resistant rubber covered roller for a printing machine, relates to the technical field of rubber covered rollers for printing machines, and solves the problems that printing parts outside the rubber covered roller can be replaced in order to ensure the printing quality, but the printing parts of a common rubber covered roller are difficult to replace. In the prior art, the rubber roller generally does not have a good stable structure to assist the connection stability between the rubber roller and a printing part, so that the printing quality is influenced due to looseness between the printing part and the rubber roller. A wear-resistant rubber roller for a printing machine comprises a connecting shaft, a rubber roller and a rubber roller body, fixed side seats are symmetrically and fixedly mounted at the two ends of the connecting shaft; after the connecting sleeve is replaced, an operator only needs to rotate the knob to drive the limiting screw rod to rotate and push the limiting sliding block to move until the limiting teeth at the bottom of the limiting screw rod are completely clamped with the limiting teeth on the limiting block of the rubber roller main shaft, so that the fixed side seat is effectively prevented from loosening due to vibration or external force, and the long-term stability of the connecting sleeve is ensured.

The application discloses a clothes treating apparatus, which comprises a cabinet, a drum assembly and a damping assembly. The cabinet comprises a base, the drum assembly is above the base and comprises an inner drum, and the damping assembly is between the base and the drum assembly and comprises arc-shaped beams. The arc-shaped beams are all convex to the drum assembly, and are configured to reduce the convex height under the pressure of the drum assembly when supporting the drum assembly. The convex heights of the arc-shaped beams are all different, and the stiffness of the arc-shaped beams increases in turn according to the order of the convex heights from high to low. The end of each arc-shaped beam is movably arranged on the base. The arc-shaped beams are configured to: when the inner drum is in a static state, the top of at least one arc-shaped beam is in supporting contact with the drum assembly; and when the inner drum rotates relative to the cabinet, the arc-shaped beams are in supporting contact with the drum assembly in turn according to the order of the convex heights from high to low. The damping assembly is beneficial to avoiding that the drum assembly drives the cabinet to vibrate due to excessive vibration, and is beneficial to avoiding noise.

The utility model discloses a thermal field structure for preparing silicon carbide crystals, which comprises a case and an outer support sleeve fixed at the top end of the case, a graphite end cover is bolted at the top end of the outer support sleeve, a conical case is fixed at the bottom end of the outer support sleeve, a protective sleeve is fixed inside the conical case, and the protective sleeve is fixed at the bottom end of the outer support sleeve. An inner steel container is fixed in the outer supporting sleeve, and an electromagnetic heating type graphite crucible is installed in the inner steel container in a sliding mode. The symmetrical worm and gear transmission structure and the conical fluted disc two-way transmission structure can evenly distribute loads, reduce unbalance and friction in the moving process, improve the stability and durability of a lifting system, enable mechanical parts not to be affected by thermal expansion and deformation even if the lifting system operates for a long time and is in the high-temperature and high-pressure environment, and improve the service life of the lifting system. And the stability and the accuracy of the lifting motion of the electromagnetic heating type graphite crucible are ensured.

The utility model relates to a kind of dynamic cone balancing device of conical crusher, including ring disc and hydraulic cylinder, the four around integral moulding of ring disc has hinge seat, one end of hydraulic cylinder is hinged with hinge seat, the other end of hydraulic cylinder is hinged with dynamic cone inner wall, the bottom mouth of ring disc is inserted with bottom cover, the top mouth of ring disc is screwed with top cover, the disc body of ring disc is equipped with the inner oil passage of through inner and outer wall, the outer end port of inner oil passage is embedded with external connection pipe, the external connection pipe is communicated with hydraulic cylinder by connecting pipe and outer oil passage;By ring disc, top cover and bottom cover constitute internal cavity, by the communication internal cavity and hydraulic cylinder of inner oil passage and outer oil passage, by the damping flow of hydraulic oil, realize the upper stability of dynamic cone, reduce the vibration influence and unbalanced motion of dynamic cone, to realize the balance control of dynamic cone, and the whole device does not need external device drive, by internal hydraulic oil communication movement, realize passive balance and shock absorption.

The shaft end of an input shaft of the parallel shaft gearbox type speed reducer is connected with a motor shaft through a locking ring, the locking ring comprises a locking ring body and an installation body, the locking ring body comprises a deformation part and a base body part which are symmetrically distributed, the deformation part and the base body part are both of a semi-annular structure, and the installation body is connected with the deformation part. An adjustable locking hole is formed between the deformation part and the base body part, the deformation part and the near end of the base body part are integrated, an adjusting notch is formed in the far end, and screw holes are formed in the far ends of the deformation part and the base body part; two first balance holes are formed in the outer end face of the lock ring body in the axial direction, and the two first balance holes and the screw holes of the deformation part and the base body part form dynamic balance. According to the speed reducer, the locking ring is arranged at the end of the input shaft so as to achieve lossless hooping and quick disassembly and assembly of the motor shaft, friction is reduced, the total heating value is reduced, the grease leakage phenomenon of the sealing ring is reduced to a certain extent, the overall dynamic balance state of the locking ring can be kept through the balance hole formed in the locking ring, and the service life of the speed reducer is prolonged. And unbalanced vibration and noise in the transmission process are reduced.

The invention discloses a dynamic loss control method for an annular bus of a motor driver, which belongs to the technical field of motor driver control and comprises the following steps: a pulse optimizer changes pulse modulation of multi-phase voltage to generate a modulation signal; solving to obtain real-time current distribution of the annular bus by the mathematical solving model; the loss calculation module calculates the real-time ohmic loss of the annular bus according to the current distribution and the distribution resistance of the annular bus, and feeds the real-time ohmic loss back to the pulse optimizer; the pulse optimizer continuously adjusts the modulation signal and compares the change of the ohmic loss until the ohmic loss reaches the minimum value, and the modulation signal at the moment serves as a final control command; and finally, the control command is sent to each driving bridge arm. According to the method, the loss of the motor driver bus is controlled to reach the minimum value, and the phenomena of voltage fluctuation, current imbalance and ring current on the annular bus can be effectively reduced, so that the ring current of the distributed driver bus can be effectively avoided, and the efficiency of the motor driver is improved.

The invention provides a beam switching processing method and device. The method comprises the following steps: receiving a first resource sent by target terminal equipment in a current measurement period; for each first synchronization signal block, updating a count value corresponding to the first synchronization signal block based on a magnitude relationship between the first signal receiving power corresponding to the first synchronization signal block and the current signal receiving power corresponding to the current synchronization signal block; based on the updated count value corresponding to the first target synchronization signal block, determining whether the current measurement period satisfies a beam switching condition; and if the beam switching condition is satisfied, determining a beam switching mode according to the beam attribution relationship between the first synchronization signal block and the current synchronization signal block, and performing beam switching based on the beam switching mode. By adopting the beam switching processing method and device, the problem that the signaling overhead and the optimal beam selection are difficult to balance when the base station manages the beam switching of the terminal equipment is solved.

The utility model discloses a high rotating speed motor rotor punching sheet, comprising a silicon steel sheet body, a plurality of arc-shaped projections arranged on the outer peripheral surface of the silicon steel sheet body, flat magnetic grooves arranged on the silicon steel sheet body corresponding to the inner sides of the arc-shaped projections, air grooves arranged at two ends of the flat magnetic grooves, and a shaft hole arranged at the central position of the silicon steel sheet body. The hole edge of the shaft hole is provided with a plurality of concave positions, and lightening holes and balancing holes are formed in the peripheral positions corresponding to the shaft hole. A ventilation recess is formed between two adjacent arc-shaped projections, so that the temperature of the rotor punching sheet and the magnetic steel can be effectively reduced. Moreover, the arc-shaped protrusions can reduce the harmonic component of the air gap, reduce the torque pulsation, and enhance the structural strength of the stator punching sheet. The flat magnetic grooves are used for inserting the magnetic steel, and air can flow through the air grooves at the two ends of the flat magnetic grooves to assist in heat dissipation, so that the rotor is subjected to heat dissipation in the operation process, and the operation performance of the motor is ensured. Meanwhile, the concave position is arranged, an air channel is added, the heat dissipation effect is further improved, and the temperature of the motor during operation can be reduced; the balance holes can effectively keep dynamic balance of the rotor, and vibration and noise are reduced. The lightening holes not only reduce the weight of the rotor, but also facilitate the improvement of the efficiency of the motor and the reduction of energy consumption, especially at a high rotating speed, the influence of mass on the balance and high-speed operation of the rotor is reduced, and the high-rotating-speed performance of the rotor is improved.

The present invention discloses an electrical stimulation vestibular rehabilitation system and method. A microprocessor receives a stimulation gating control instruction containing a target electrical stimulation channel, outputs a stimulation gating control signal to a stimulation gating circuit to control the conduction of the target electrical stimulation channel of the stimulation gating circuit; after gating, an impedance signal measured by an impedance detection module is received, and the impedance of the left / right stimulation electrode + contacting with the human body, the impedance of the left stimulation electrode - contacting with the human body, and the impedance of the right stimulation electrode - contacting with the human body are analyzed, and when the three impedance values ​​are all less than the set impedance value, information that each electrode has good contact is output; thereafter, an electrical stimulation instruction containing a target electrical stimulation waveform, frequency, and intensity is received, a waveform generation module and a constant current driving module are controlled to form an electrical stimulation signal having a target electrical stimulation waveform, a target electrical stimulation frequency, and a current corresponding to a target electrical stimulation intensity, and the signal is applied to a patient through the stimulation electrode of the target electrical stimulation channel, so as to perform electrical stimulation vestibular rehabilitation treatment on the patient.

The utility model relates to the technical field of UV offset printing ink production, disclose a kind of automatic feeding device for UV offset printing ink production, including pipe body, the top of the pipe body is outwardly inclined, the top of the inside of pipe body is provided with the filter assembly of convenient to take, the filter assembly includes filter layer, the top of both sides in pipe body is fixedly connected with support base, the filter layer is located at the top of the inside of pipe body.This UV offset printing ink production automatic feeding device is provided with filter layer, limiting frame, inner socket, positioning rod, support base and push plate, can carry out deep filtration to the ink imported into pipe body, quickly remove the impurity in ink, optimize the connection mode of filter layer, it is convenient to disassemble and use, solve the problem that plant-based environmentally friendly ink special smell is easy to attract insects, unable to filter ink and reduce the purity of ink, subsequent use is prone to dirty spot and affect the appearance.

The utility model relates to the technical field of encoders, in particular to a novel encoder, which comprises an assembly casing. A coding assembly structure is assembled on the inner side; the coding assembly structure comprises an installation shaft rotationally installed on the inner side of the assembly machine shell, a main shaft rod is rotationally installed on the inner side of the installation shaft, and a coding disc is integrally fixed to the end, located in the assembly machine shell, of the main shaft rod; the device has the advantages that mounting and adjusting are convenient, the assembly screw cylinder of the assembly flange rotates through an external tool, position adjustment can be achieved through screw transmission in a screw hole of the assembly flange, then screw locking is conducted through the nut, the assembly position can be accurately adjusted, and mounting precision is ensured; the gravity center is stable when the assembly flange rotates, shaking and unbalance are reduced, stable operation of equipment is facilitated, the equipment failure risk caused by the unstable gravity center is reduced, and the service life of the equipment is prolonged.

This utility model discloses a speaker protection device, comprising a slide plate, a speaker body, a locking assembly, a flipping assembly, a first handrail, and two second handrails. Two traveling wheels and two pulleys are fixedly connected to the underside of the slide plate. The locking assembly is used to limit and lock each of the traveling wheels. The first handrail and the two second handrails are all fixedly connected to the slide plate. The flipping assembly is disposed on the slide plate and is used to adjust the sound output direction of the speaker body. The diameter of the traveling wheel 13 is larger than the diameter of the pulley 14. This utility model aims to facilitate user operation, flexibly adjust the channel direction, and improve the usability of the product.

The utility model provides a frame convenient to fold, which comprises a frame main body and a main beam, a seat is arranged at the upper end of the frame main body, a base is arranged at the lower end of the frame main body, and a battery box positioned below the seat is arranged on the base; a rear wheel is arranged at the intersection of the base and the frame main body; a grip assembly is arranged at the upper end of the main beam, and a front wheel assembly is arranged at the lower end of the main beam. A first folding assembly and a second folding assembly are arranged between the frame body and the main beam. A first folding assembly and a second folding assembly are arranged between the frame body and the main beam and allow the frame to be folded when the frame does not need to be used, and the occupied space is reduced. By operating the first folding assembly and the second folding assembly, the frame body and the main beam can be folded to be close to each other, a compact storage or carrying state is achieved, a compact structure is formed, and space is saved.

The invention discloses an application of white datura in preparation of a medicine for preventing and treating cerebral ischemia-reperfusion injury. The invention proposes and verifies that white datura can effectively prevent and treat ischemia reperfusion injury for the first time, including greatly reducing the volume of cerebral infarction caused by cerebral ischemia reperfusion; meanwhile, the neurological function impairment symptoms such as motor coordination and balance ability reduction, spatial learning and reference memory impairment and depression-like behaviors caused by cerebral ischemia reperfusion are remarkably improved, and a natural medicine with great application potential is provided for mechanism research, prevention and treatment of cerebral ischemia reperfusion injury.

The application provides a back contact solar cell, a laminated cell and a photovoltaic module. The back contact solar cell comprises: a second surface of a semiconductor substrate has a first sub-region and second sub-regions located on both sides of the first sub-region, a plurality of first texture structures are arranged in the first sub-region, a plurality of first polishing structures are arranged in the second sub-regions, the second sub-regions protrude in a direction away from the first surface relative to the first sub-region, and the distance between the second sub-regions and the bottom of the first texture structure in the first sub-region is 2-5 mu m. The second surface of the semiconductor substrate has a third sub-region and fourth sub-regions located on both sides of the third sub-region, a plurality of second texture structures are arranged in the third sub-region, a plurality of second polishing structures are arranged in the fourth sub-regions, the fourth sub-regions protrude in a direction away from the first surface relative to the third sub-region, and the distance between the fourth sub-regions and the bottom of the second texture structure in the third sub-region is 2-5 mu m.

The invention relates to the technical field of machining clamps, in particular to a machining clamp for a turbocharger pressure shell product for an automobile, which comprises a worktable provided with a driving part, and further comprises a correcting assembly comprising two groups of movable seats capable of getting away from and getting close to each other, and movable sleeves are arranged on the movable seats; a guide sleeve is movably mounted in the movable sleeve, and a supporting rod is movably mounted on the guide sleeve; the rotating assembly comprises a fixed ring and a movable ring which are arranged on the workbench, an air inlet pipe stretching into the movable ring is arranged on the fixed ring, a pneumatic clamping jaw is arranged on the movable ring, a trigger piece is arranged on the movable ring, an air guide column is arranged on the trigger piece, and an air guide hole is formed in the air guide column; the air guide hole is used for communicating the air inlet pipe to inflate and pressurize the movable ring after the air guide column is pressed to descend, and the pneumatic clamping jaw is pushed out to clamp the workpiece. When a workpiece is rotationally machined, the centrifugal force at the protruding position of the workpiece is reduced, rotation stability is kept, and resistance and unbalance during rotation are reduced.

The invention provides a photovoltaic asymmetric low-voltage ride-through control method and device and control equipment, and relates to the technical field of photovoltaic grid connection. The method comprises the steps that the voltage of a photovoltaic grid-connected point is acquired, and whether an asymmetric low-voltage fault occurs or not is determined according to the voltage of the photovoltaic grid-connected point; when the asymmetric low-voltage fault is detected, determining a positive-sequence reactive current reference value, a negative-sequence reactive current reference value and a positive-sequence active current reference value based on the distribution sequence of the positive-sequence reactive current, the negative-sequence reactive current and the positive-sequence active current from large to small according to the priority, and setting the negative-sequence active current reference value to be 0; and controlling the photovoltaic inverter according to the positive sequence reactive current reference value, the negative sequence reactive current reference value, the positive sequence active current reference value and the negative sequence active current reference value. According to the priority distribution strategy, the positive sequence voltage of the grid-connected point is rapidly supported, the asymmetry of the power grid is inhibited, and the compatibility of the photovoltaic grid-connected system and the power grid is improved.

The utility model provides a kind of insulation structure for short-circuit prevention safety type charging pile battery soft connection, including charging pile body, the outside of the charging pile body is provided with charging wire, the end of the charging wire away from charging pile body is fixedly connected with charging head, the outside of the charging pile body is provided with protection assembly, the inside of the charging pile body is equipped with the clamping groove of the insulating component of being provided with.The insulation structure for short-circuit prevention safety type charging pile battery soft connection, by setting insulating component, the double insulation structure of main insulation layer and reinforcing insulation layer, form all-around wrapping protection to battery soft connection body, main insulation layer is directly attached to soft connection surface, provide basic insulation barrier, enhance insulation strength, effectively block current leakage path, significantly improve the redundancy of insulation performance, even in long-term use Local wear or aging, still can maintain reliable insulation effect, guarantee the safe operation of charging pile battery system.

The invention relates to a multi-micro-grid optimization method for compressed air energy storage and demand response, which comprises the following steps: constructing a multi-micro-grid network comprising a solar power generation system, a gas turbine system and a compressed air energy storage system, and storing excess power by using a compressed air energy storage unit when photovoltaic power generation is excess; compressed air is released to assist power generation during load peak or insufficient power supply, so that continuity and stability of power supply are ensured; meanwhile, in combination with a demand response mechanism, load balance and peak load reduction are realized by dynamically adjusting load demands, and the flexibility of the system is improved; besides, an artificial intelligence optimization technology is adopted, key operation parameters are dynamically adjusted, energy production and storage are further optimized, the energy utilization efficiency is improved, the problem of power instability caused by renewable energy power generation volatility is effectively solved, and the method has the advantages of being efficient, capable of saving energy, stable in power supply and high in economical efficiency; the method has the advantages that energy scheduling is optimized, and stability and economic benefits are improved.

The utility model relates to the technical field of lithium battery production, in particular to a pole piece cutter of a winding machine. According to the technical scheme, the pole piece cutter of the winding machine comprises a limiting groove, a protruding block, a cutter frame and a cutter body, the limiting groove is formed in the cutter frame, the protruding block is arranged on the cutter body, the cutter body is installed on the cutter frame in a limiting mode through mutual matching of the protruding block and the limiting groove, blades are arranged on the two sides of the cutter body, and the angle of the blade position of each blade is 89 degrees. According to the utility model, the 45-degree upper cutter is changed into the 89-degree upper cutter, so that the problem of material falling can be solved, and meanwhile, the service life of the cutter is prolonged.

Embodiments of the present application disclose a motion state prompting method and device, electronic equipment and a storage medium. The motion state prompting method can include: acquiring motion state information of a vehicle, the motion state information being used to indicate a motion condition of the vehicle within a preset time length after a current time; generating and outputting a prompt interface according to the motion state information to prompt the motion condition. Through implementation of the method, the riding experience of a user can be effectively improved.

This invention belongs to the field of active distribution network operation control and artificial intelligence application technology, specifically involving a method and system for managing three-phase imbalance in energy storage distribution networks based on the DSAC algorithm. This invention proposes a DSAC algorithm with adaptive risk preference based on operating conditions, applied to Markov decision processes for training the agent. Data is extracted from an experience replay buffer to update the policy network and evaluation network for offline training of the agent. The risk preference coefficient during the policy update process is adaptively adjusted using an operating condition severity index. This invention deeply integrates the phase-decoupling adjustment capability of the energy storage system with the operating condition adaptive risk preference mechanism of the DSAC algorithm, enabling the algorithm to dynamically adjust the trade-off between benefits and risks based on photovoltaic fluctuations, the severity of three-phase imbalance, and the safety margin of energy storage SOC. This achieves rapid and robust management of three-phase imbalance in the distribution network, improving the power quality and operational stability of high-penetration photovoltaic distribution networks.

The invention provides a frequency modulation method for a large-scale new energy grid-connected system based on a neural network. The frequency modulation method comprises the following steps: S1, installing an auxiliary energy storage unit and a prediction and control unit in the new energy grid-connected system; s2, the prediction and control unit performs prediction-based data acquisition on the energy storage unit, the auxiliary energy storage unit, the grid-connected unit and the distributed power generation unit; s3, on the basis of a neural network, predicting wind power, optical power and grid-connected bus frequency at future moments; s4, optimizing the energy storage SOC, the charging and discharging efficiency and the charging and discharging power; and S5, performing cooperative control of charging and discharging according to the real-time operation states of the energy storage unit and the auxiliary energy storage unit. The frequency modulation requirement under large-scale new energy access is met, comprehensive cooperation of the energy storage system and efficient utilization of stored energy are achieved, the overall performance and intelligence of the new energy grid-connected system can be effectively improved, and meanwhile the service life of the energy storage system is prolonged.