24results about How to "Avoid running unstable" patented technology

The invention provides a scheduling method and system for a photovoltaic energy storage system, and relates to the technical field of photovoltaic energy storage, and the method comprises the steps: obtaining the rated power generation parameters of a photovoltaic panel in the photovoltaic energy storage system, and the future illumination and temperature data of an area where the photovoltaic panel is located, and predicting the future power generation amount of the photovoltaic panel; the overall scheduling strategy of the scheduling system is determined according to the obtained battery real-time storage capacity of the energy storage system, the future equipment electricity consumption and the predicted generating capacity of the photovoltaic panel, when the future generating capacity of the photovoltaic panel cannot meet the electricity demand, the electricity is scheduled from the power grid preferentially, and a pre-scheduling model is established; when the future generating capacity of the photovoltaic panel can meet the requirement, the residual generating capacity of the photovoltaic panel is sent to the power grid, scheduling is carried out between the residual storage capacity of the energy storage system and the power grid, the peak valley pressure of the power grid is relieved, and by establishing a first scheduling model, the electric quantity is scheduled, and a first scheduling optimization model is established; and optimizing and adjusting the scheduling result of the first scheduling model.

The invention provides a vertical water-turbine generator set guide bearing clearance adjustment calculation method and device, and relates to the technical field of bearing control, and the method comprises the steps: setting an azimuth angle in a coordinate system, selecting a center point from a main shaft, and marking a turning point; obtaining a guide bearing net throw corresponding to each turning point, a cosine value of an azimuth angle corresponding to the turning point and a sine value of the azimuth angle corresponding to the turning point, and calculating a one-time frequency X component and a one-time frequency Y component of a turning throw curve; and acquiring the central azimuth angle of the guide bearing bush and the total design clearance of the bearing, and calculating the adjustable clearance of each bearing bush of the guide bearing in combination with the first frequency multiplication X component and the first frequency multiplication Y component of the turning throw curve. The to-be-adjusted clearances of all the bearing bushes of the guide bearing are calculated according to the center azimuth angles of the bearing bushes of the guide bearing, the total design clearance of the bearing and the first-harmonic-generation X component and the first-harmonic-generation Y component of the turning throw curve, precise adjustment of the bearing bush clearances is achieved, unstable unit operation caused by too large bearing bush clearances is avoided, and the unit operation stability is improved.

The invention relates to the technical field of motor noise detection, and discloses a motor noise detector with a protection function, which comprises a detection frame, the surface of the detection frame is fixedly connected with a positioning ring, the bottom of the positioning ring is fixedly connected with supporting legs, the top of the positioning ring is fixedly connected with an electric push rod, and the output end of the electric push rod is fixedly connected with a pull rod. One end of the pull rod away from the electric push rod is fixedly connected with a top cover. When a to-be-detected motor is placed in the detection frame, the top cover is pushed to move towards the upper portion of the detection frame through connection of the electric push rod and the pull rod, after the top cover is separated from the top of the detection frame, the motor is placed in the clamping frame to make contact with the supporting component, and the supporting component is used for supporting and limiting the motor; and when the supporting part drives the motor to move towards the lower portion of the clamping frame, the supporting part pushes the clamping part to clamp and fix the motor, and the situation that the motor shakes in the noise detection process, and consequently the detection result has errors is avoided.

The invention discloses a wear state determination method and device, a storage medium and an electronic device.The method comprises the steps that first wear state data of a first brake pad are obtained, and the first wear state data at least comprise a vibration signal and a temperature signal corresponding to the first brake pad; determining a multi-frequency signal feature corresponding to the first brake pad according to the first wear state data, and mapping the multi-frequency signal feature to a high-dimensional feature space to obtain a first wear state feature vector corresponding to the first brake pad; and the first wear state feature vector is input into a trained target diagnosis model, so that the trained target diagnosis model determines the target wear state of the first brake pad according to the first wear state feature vector. By means of the method, the problem that in the related technology, due to uneven abrasion of the brake pad, operation of the wind generating set is unstable can be solved.

The invention relates to an encoder absolute position angle decoding method and device, equipment and a storage medium, and the method comprises the steps: obtaining a signal combination level value corresponding to a current sine and cosine signal group in an encoder in real time, obtaining a current sine and cosine signal decoding angle, carrying out the combination processing of the signal combination level value and the current sine and cosine decoding angle, and carrying out the decoding of the absolute position angle of the encoder. A combined angle is obtained; performing judgment processing on the combined angle and the signal combined level value, and performing correction processing on the combined angle based on a judgment result to obtain an absolute position angle of the encoder; compared with the prior art, the technical scheme of the invention can improve the accuracy of the absolute position angle output by the encoder, thereby improving the operation stability of the motor, and avoiding the problem of unstable operation of the motor caused by angle deviation.

The invention discloses a control method and device for a heating ventilation air conditioning system. The method comprises the steps that the first load demand quantity of the current period, unit state information and the first operation unit number of the previous period before the current period and closest to the current period are obtained; under the condition that it is determined that the first operation unit number meets the first load demand quantity and the heating ventilation air conditioning system is in a steady state, the unit demand quantity of the current period is determined according to the first load demand quantity and the unit state information; under the condition that it is determined that the first operation unit number meets the first load demand quantity and the heating ventilation air conditioning system is in an unstable state, the first operation unit number is determined as the unit demand quantity of the current period; and adjusting the running unit in the current period according to the unit demand. The problem that the number of the units cannot be flexibly adjusted can be effectively solved, dynamic adjustment of the number of the units is achieved, the possibility that the number of the operating units is matched with actual requirements can be improved, and the operating efficiency of the heating ventilation air conditioning system can be improved.

The invention discloses a power generation energy control method for a novel transformer substation standby power supply system based on a fuel cell, and the method comprises the following steps: S1, constructing a complete novel transformer substation standby power supply system based on the fuel cell, and enabling the system to comprise the fuel cell used as the standby energy of the transformer substation and a super capacitor; s2, performing short-term power prediction on a fuel cell and a super capacitor in the novel standby power supply system of the transformer substation, and providing support for optimized operation and energy management of a subsequent system; and S3, energy distribution of the fuel cell and the super capacitor is optimized in real time, so that the system can quickly adapt to a continuously changing operation environment, and the energy utilization efficiency is improved. According to the invention, the system can rapidly adapt to a continuously changing operation environment, the energy utilization efficiency is improved, and the reliability and durability of the standby power supply system in long-time operation are improved.

The present application discloses a multi-energy storage converter off-grid parallel operation control method and control device, which improves the operation stability of the parallel system. The method includes: determining one of the multiple energy storage converters of the energy storage power station as the host, and the rest as slaves; the host performs power outer loop, voltage middle loop, and current inner loop control according to the load power of the entire station, and its power outer loop adopts droop control, and the output of its power outer loop and voltage middle loop is sent to each slave; the slave performs power outer loop, voltage middle loop, and current inner loop control according to the output of the host's power outer loop and voltage middle loop; the slave's power outer loop adopts droop control, and the given value of the slave's voltage middle loop is the sum of the output of the host's power outer loop and the first compensation value, and the given value of the slave's current inner loop is the sum of the output of the host's voltage middle loop and the second compensation value, the first compensation value is calculated based on the output of the slave's power outer loop, and the second compensation value is calculated based on the output of the slave's voltage middle loop.

The invention relates to the technical field of turbine rotating speed adjustment, and discloses a turbine rotating speed dynamic adjustment method and system based on machine learning, and the method comprises the steps: obtaining the environment information and water flow information of a target water area, and substituting the environment information and the water flow information into a pre-established water flow fluctuation model, and acquiring preset water flow fluctuation data of the target water area in the preset time period. And acquiring real-time water flow data of the target water area in a preset time period, comparing the real-time water flow data with the preset water flow fluctuation data, and determining a preset turbine rotating speed of the turbine according to a comparison result. And the real-time rotating speed of the turbine is obtained, and the turbine is adjusted according to the rotating speed difference value between the real-time rotating speed and the preset rotating speed of the turbine. The environment information and the water flow data are combined with the preset water flow fluctuation model, the turbine rotating speed and the water flow condition are compared in real time, dynamic adjustment of the turbine rotating speed is achieved, and the stability of the power generation voltage of the hydroelectric system under different water flow conditions is improved.

The invention relates to the technical field of waste incineration, in particular to a waste incineration flue gas purification system tail energy recycling system and a working method. The system comprises a flue gas cooler system, a circulating water pump, a primary air heater, a secondary air heater, a demineralized water replenishing system, a sampling system, a blowdown system and a dosing system, the flue gas cooler system comprises a flue gas cooler, a plurality of circulating water heat exchange modules are arranged in the flue gas cooler, and the circulating water heat exchange modules are connected in series and / or in parallel; an outlet of the circulating water pump is connected with an inlet of the circulating water heat exchange module, an outlet of the circulating water heat exchange module is connected with circulating water inlets of the primary air heater and the secondary air heater, and a circulating water outlet of the primary air heater and a circulating water outlet of the secondary air heater are connected with an inlet of the circulating water pump through a water return pipeline. And a plurality of branches are arranged on the water return pipeline and are respectively connected with the demineralized water replenishing system, the sampling system, the sewage discharge system and the dosing system.

The invention discloses a suspended track beam three-track line changing system, comprising a front stack beam, three switch beams and three rear stack beams, wherein the switch beam connects the front stack beam and the corresponding rear stack beam by rotating to realize line changing, and also comprises a slewing device, a slewing drive mechanism, a running mechanism, a locking compensation mechanism, and a connecting device for connecting two adjacent switch beams. The system has a reasonable structure and stable operation, and can compensate for the influence of factors such as ambient temperature, assembly error, vibration and the like on the system.

The invention discloses a cooling-water machine with good stability and a constant power control system of the cooling-water machine, and relates to the technical field of cooling-water machines, the cooling-water machine with good stability comprises a case, a filtering mechanism and a cleaning mechanism; the filtering mechanism comprises a mesh plate, a first filter screen, a synchronous belt, a driving synchronous wheel, a driven synchronous wheel, a driving shaft, a driven shaft and a first motor, the cleaning mechanism comprises a rolling brush, a second motor and a collecting assembly, air entering the machine box is filtered through the first filter screen, pollutants such as dust and particulate matter in the air can be prevented from entering the machine box, and the cleaning efficiency is improved. Therefore, the pollutants are prevented from interfering with the operation of the cooling-water machine, and the stable operation of the cooling-water machine is ensured; and the rolling brush can clean the whole first filter screen, the first filter screen is prevented from being blocked, it is guaranteed that sufficient air can enter the machine box, and the situation that the water chiller runs unstably due to insufficient air inflow is avoided.

The present invention discloses an earthquake-resistant mechanical garage, comprising a support plate, both sides of the top of the support plate are fixedly connected with support plates, one side opposite to the support plate is fixedly connected with a reinforcing plate, the bottom of the opposite side of the support plate is fixedly connected with a first sliding rod, the surface of the first sliding rod is sleeved with a first sliding sleeve, and the bottom of the first sliding sleeve is fixedly connected with a first placement plate. The present invention achieves the purpose of good earthquake resistance through the coordination of the support plate, the support plate, the reinforcing plate, the first sliding rod, the first sliding sleeve, the first placement plate, the first tooth plate, the first motor, the first gear, the second sliding rod, the second sliding sleeve, the second placement plate, the vertical rod, the top plate, the electric telescopic rod, the third placement plate, the second tooth plate, the second motor, the second gear, the limit plate, the limit sleeve and the limit rod, effectively avoiding the unstable operation of the mechanical garage when vibration occurs, eliminating the existing safety hazards, and improving the user's experience of the mechanical garage.

This utility model discloses a continuous conveyor belt shot blasting machine, relating to the field of shot blasting machine technology. The utility model includes a shot blasting machine body and a metal mesh belt. A second side frame and a first side frame are fixedly installed at the feed end and discharge end of the shot blasting machine body, respectively. In this utility model, a drive motor drives a fixed conveyor roller to rotate. The metal mesh belt rotates continuously under the combined action of the fixed and movable conveyor rollers, thereby driving the metal parts to be shot blasted to continuously enter the shot blasting area within the shot blasting machine body. Simultaneously, the drive motor drives the fixed conveyor roller to rotate while a cleaning component cleans the surface of the metal mesh belt, ensuring a clean surface that does not affect the subsequent shot blasting effect. A tensioning component is used to adjust the distance between the movable and fixed conveyor rollers, thereby adjusting the tension of the metal mesh belt and preventing loosening that could lead to unstable operation.

The invention discloses a TDI tar concentration device, and relates to the technical field of tar concentration, and the TDI tar concentration device comprises a composite mechanism. According to the TDI tar concentration device, through the design of the composite mechanism, materials enter the composite shell from the feeding mechanism, impurities of the materials are preliminarily filtered through the feeding mechanism and are prevented from influencing operation of subsequent equipment, and the interior of the composite shell is heated through the heater, so that gasification of the materials is promoted, and subsequent concentration is facilitated; the motor drives the central rotating shaft to rotate and drives the scraping assembly to rotate, materials attached to the inner wall are cleaned, the gasification speed is increased, the materials in the equipment are stirred through the stirring mechanism, so that the effect of promoting uniform heating of the materials is achieved, and the situation that the materials are locally overheated, consequently, the materials are heated and decomposed unevenly, and the concentration quality is affected is avoided; part of residues are discharged from the discharging pipe to the outside, and finally gasified materials enter the condenser from the rising position, so that follow-up treatment is facilitated.

The invention discloses an optical fiber signal transceiver device, and relates to the technical field of signal transceiver. The invention comprises a casing, wherein the inner wall of the vent of the casing is fixed with a dustproof net, a mainboard is fixedly installed at the bottom end of the casing, a transceiver module is fixedly installed on the top surface of the mainboard, a dehumidification component is arranged on the top of the inner wall of the casing, the dehumidification component comprises two double ring frames, the two double ring frames are fixed on the top of the inner wall of the casing, the two double ring frames are located on the left and right sides of the inner wall of the casing, micro electric telescopic rods are fixedly installed on the inner walls of the two double ring frames, and circular frames are fixed on the back sides of the telescopic ends of the two micro electric telescopic rods. The invention contacts moisture with a large area through a calcium chloride block, and the calcium chloride block quickly absorbs moisture, so that the gas in the casing is quickly dried, thereby avoiding the problem that a large amount of moisture in the casing causes the electronic components in the device to be damaged by moisture.

The present invention belongs to the technical field of electronic digital data processing, and more specifically, to a Repack image file encapsulation method for solving the running dependency of HPC applications. The method packages the HPC high-performance computing application and all its runtime dependencies into an independent executable image file, and publishes it in the form of a statically linked executable file. The file has its own container engine and can be run directly, solving the dependency problem encountered in deploying HPC software in different system environments. The method not only supports mainstream architectures, but is also compatible with HPC computing environments. In addition, the Repack image file can be recompiled and optimized to meet the computing needs of different users.

The utility model relates to the technical field of hydraulic telescopic lazy arms, in particular to a hydraulic telescopic lazy arm convenient for length adjustment, which comprises a base, the top of one end of the base is fixedly connected with a revolving bed, the top of the revolving bed is fixedly connected with a stand column, and the middle of the stand column is rotatably connected with a rotating shaft. A rotary motor is movably connected to one side of the rotary shaft, a stand column is connected to the rotary motor through a supporting block arranged on one side of the rotary motor, a multi-stage hydraulic oil cylinder is fixedly connected to the top of the stand column, and the improved hydraulic telescopic suspension arm can provide auxiliary supporting for the suspension arm device when the suspension arm device works; the suspension arm device is prevented from inclining, good stability and strength are provided, length extension and retraction of the suspension rod can be conveniently and rapidly achieved, the height of the suspension arm can be adjusted, the use process is stable, the limiting effect is achieved, the structure of a maintenance component is simplified, and bidirectional and large-amplitude rotation can be achieved.

The utility model relates to water treatment technical field, and disclose a kind of durable water pump for sewage treatment, including support base, motor structure, shaft coupling sealing box, rotating shaft fixed structure, water pump and sewage inlet and outlet structure, motor is stably installed by motor support frame, output shaft is connected rotating shaft through shaft coupling, rotating shaft is supported by high-precision ball bearing, drive wear-resistant impeller in water pump rotation, water pump adopts side water inlet, top water outlet design, cooperate with self-cleaning grid filter screen and gradually expanding flow channel, effectively reduce blockage and energy loss, shaft coupling sealing box uses anticorrosive sealing structure, rotating shaft support system is equipped with heat dissipation channel and split type maintenance design, water pump support frame uses modular damping structure, overall rigidity installation ensures operating stability.

The invention discloses a slag particle and water rapid separation device, and relates to the field of slag particle and water rapid separation devices.The slag particle and water rapid separation device comprises a separation box body, a conveying chain and a support, the lower portion of the separation box body is fixed to the support, an inclined feeding box body is arranged on the right side of the separation box body, and a feeding pipe is arranged above the middle of the inclined feeding box body; the bottom of the inclined feeding box is connected to a water tank at the lower end of the separation box, an exhaust groove is formed in the portion, above the water tank, of a bottom plate, a first guide assembly, a second guide assembly and a third guide assembly are installed in the separation box, and an expansion assembly is installed in the portion, on the right side of the third guide assembly, of the separation box. According to the invention, the designed separation box body is combined with the high-pressure water spraying device and the shifting plate on the conveying chain, so that rapid separation of slag particles and water is effectively realized. The high-pressure water spraying device can accurately control the spraying direction and strength of water mist, slag particles of different types and humidity are effectively washed, and separation of the slag particles and water is promoted.

The present invention discloses a suspension track single-opening vehicle line-changing system, in which a turnout beam realizes line-changing by connecting the corresponding rear stack beam and the front stack beam through a rotary motion, and the above-mentioned devices and mechanisms are integrated in the line-changing system, and articulated bearings are used in the rotary device, the connecting device, and the running device, so as to realize adaptive adjustment of the position relationship, compensate for the matching error of the turnout beam caused by temperature and vibration factors, and provide stable support and operating conditions. The installation position of the drum gear and the rack assembly of the rotary drive mechanism can also adapt to the telescopic deformation of the turnout beam, and provide stable drive. The combination of the above-mentioned devices and mechanisms improves the stable operation of the suspension track line-changing system as a whole.

The invention relates to a node control method and device, equipment and a storage medium. The method comprises the following steps: acquiring node parameters corresponding to operation nodes in a target system and node parameters corresponding to regulation and control nodes of the target system in a regulation and control direction; determining a system operation index and an expected operation index corresponding to the target system according to the node parameters corresponding to the operation nodes and the node parameters corresponding to the regulation and control nodes; according to the system operation index and the expected operation index, updating a node regulation and control threshold value corresponding to the regulation and control direction; and according to the system operation index and the node regulation and control threshold value corresponding to the regulation and control direction, controlling the operation state of the regulation and control node in the target system. According to the method, the system operation index and the expected operation index can reflect the resource change brought to the target system by the regulation and control operation node number, the node regulation and control threshold is updated according to the resource change, and the problem that the system operation is unstable due to the fact that the node number cannot be adjusted in time by using a fixed threshold is avoided.

The utility model discloses a soot blower, relates to the technical field of alkali boiler purging, and aims to solve the problems that when a soot blower in the prior art runs, an inner pipe droops under the action of gravity of the inner pipe and is in contact friction with the inner wall of an outer pipe to cause abrasion, and the replacement cost of the inner pipe is high. The soot blower comprises a gas transmission inner pipe, a purging outer pipe and buffer structures, the gas transmission inner pipe extends into the purging outer pipe, the gas transmission inner pipe and the purging outer pipe are coaxial, at least one buffer structure is arranged between the gas transmission inner pipe and the purging outer pipe, and each buffer structure is detachably installed on the outer wall of the gas transmission inner pipe. The soot blower provided by the utility model is used for reducing the replacement frequency of the inner pipe, saving the cost and simultaneously improving the operation stability of the soot blower.