284results about How to "Reduce the required power" patented technology

The invention discloses a multi-mode-based self-adaptive control method and system for energy surgical equipment, and relates to the technical field of medical instrument control. The invention discloses a multi-mode-based self-adaptive control system for energy surgical equipment. The multi-mode-based self-adaptive control system comprises a waveform mode generation module, a real-time tissue parameter acquisition module, an acting tissue prediction module, a data analysis and decision module, a self-adaptive control output module and a safety monitoring and abnormal response module. By monitoring the contact area of the equipment electrode and the tissue in real time, the waveform mode and the output power are dynamically adjusted, and the uniformity and the high efficiency of energy transfer are ensured; on the basis of a tissue prediction model of individual characteristics of a patient, prior analysis is carried out by utilizing data acquired in real time, and response lag caused by drastic change of tissue states is avoided by predicting the tissue states at the next moment and adjusting waveform modes and parameters in advance, so that the prospective regulation and control capability of energy surgical equipment is remarkably improved.

The invention discloses an energy regulation and control method of a photovoltaic system, and relates to the field of energy regulation and control of the photovoltaic system, and the method comprises the steps: collecting comprehensive state data in a time period T, processing the comprehensive state data, and obtaining time sequence state data; performing primary processing on the time sequence state data by using moving average filtering to obtain a smoothed initial data set, taking the initial data set as observation input of Kalman filtering, further smoothing the data by using the Kalman filtering to obtain a high-precision gain data set, and using improved Pamp; performing disturbance judgment on the gain data set through an O algorithm; according to the method, power oscillation of voltage in a prediction interval is eliminated by using an IncCond method, subdivision demand judgment is performed, a maximum power point is accurately positioned by using a subdivision search method, and the maximum power point is output as a working point of the system, so that energy regulation and control of the photovoltaic system at the maximum power point are realized, and the energy efficiency of the photovoltaic system is improved.

The invention discloses a catalyst layer for a fuel cell and a preparation method thereof, the catalyst layer comprises an anode catalyst and a cathode catalyst, the anode catalyst layer comprises a Pt-C catalyst, high dielectric micromolecular alcohol, sulfonated lignin doped conductive polymer nanoparticles, a hydrophilic adhesive, an ionomer solution and deionized water; the cathode catalyst layer comprises a catalyst, an ionomer solution, high-dielectric micromolecular alcohol, polytetrafluoroethylene and deionized water; the technical problems that an existing catalyst layer for a fuel cell is poor in water management effect, and an adopted water management material is poor in conductivity can be solved. The preparation method is simple and convenient, and the preparation difficulty and the operation difficulty of operators are greatly reduced.

The invention discloses a particle swarm optimization-based flywheel-lithium battery hybrid energy storage system participation secondary frequency modulation capacity configuration method, which comprises the steps of establishing a regional power grid frequency modulation dynamic model based on ACE distribution and ARR distribution, and comprehensively considering an ACE signal distribution mode and an ARR signal distribution mode to determine a frequency modulation power instruction distributed by a hybrid energy storage system; a first-order low-pass filter is used for carrying out high and low frequency division on a frequency modulation power signal distributed by the hybrid energy storage system, a high-frequency component is distributed to flywheel energy storage for response, a low-frequency component is distributed to a lithium battery for response, and the high-frequency component and the low-frequency component serve as reference power of flywheel energy storage and lithium battery energy storage; the charging and discharging power of hybrid energy storage is adjusted and controlled by considering different energy storage SOC reconstruction domains; a hybrid energy storage capacity configuration model with the maximum hybrid energy storage participation frequency modulation income as the target is established based on the whole life cycle, and a particle swarm optimization algorithm is adopted for solving; the overall economical efficiency and safety of the hybrid energy storage system participating in frequency modulation are effectively improved.

The utility model discloses an ultra-thin parking spot lock which comprises a driving mechanism, a parking spot lock body and a parking spot lock body. The turning plate can rotate, and the turning plate and the guide plate are arranged side by side in the width direction of the turning plate; wherein a cavity is formed in the turning plate and / or the guide plate, a power module is assembled in the cavity, and the power module is electrically connected with the driving mechanism; the turning plate is provided with a driving axis and a rotating axis which are parallel, the length of the turning plate extends along the rotating axis, the width value of the turning plate is set as a, the distance between the driving axis and the rotating axis is not larger than a / 2, and the driving mechanism drives the turning plate to rotate around the rotating axis at the driving axis. According to the ultrathin parking spot lock, the cavity is formed in the turning plate or the guide plate, the power module is assembled, and the size of a machine box is reduced. The driving mechanism drives the turning plate to rotate at the driving axis, the needed power is small, the displacement of a driving part is small, the size of the driving mechanism is reduced, and the ultrathin design is achieved.

The invention relates to an energy storage robot leg and a motion control method thereof, belongs to the technical field of robots, and solves the problem that the whole passive energy storage leg is of an elastic structure and is difficult to control in the prior art. An energy storage robot leg comprises a thigh structure, a shank structure, a foot structure, a leg driving structure, a leg energy storage structure and a leg locking structure. The leg and foot driving structure is arranged between the thigh structure and the shank structure and used for driving the shank structure to rotate relative to the thigh structure; the leg and foot energy storage structure is arranged between the shank structure and the foot structure and used for storing elastic potential energy generated when the foot structure moves relative to the shank structure; the leg and foot locking structure is used for locking or unlocking the leg and foot energy storage structure. Energy storage during jumping of the robot is realized, and meanwhile, the foot structure and the shank structure synchronously move in a walking state, so that the control difficulty can be simplified.

The invention discloses an air frying and deep frying combined fryer and a flour-wrapped food frying method. The combined fryer comprises a fryer body, an air frying device is arranged on the upper portion of the fryer body, and a fryer is arranged on the lower portion of the fryer body; a frying basket is arranged between the air frying device and the fryer, and a frying basket lifting mechanism is arranged in the fryer body. The method comprises the following specific steps: S1, adding edible oil into a fryer and starting heating; s2, putting the flour-wrapped food in a frying basket, and lowering the frying basket into an oil layer through a frying basket lifting mechanism after the oil temperature is increased to a set temperature, so that the oil layer submerges the flour-wrapped food; s3, after the flour-wrapped food is heated and shaped in the fryer, the fryer basket lifting mechanism moves reversely to enable the fryer basket to rise to the position above the oil layer, and the air frying device is started to continue to heat the food. The combined mode of low-temperature frying and high-temperature air frying is adopted, separation of a flour wrapping layer and food can be avoided, the surface of the food can be crisped, the food can be quickly cooked, grease can be drained, the heating time of the food in the fryer is shortened, and the food is healthier.

The invention discloses a six-shaft simple electric control speed change clutch sheet type electric driving system which comprises a power input mechanism, a speed change assembly and a two-shaft power output mechanism, and a power input shaft, a speed reduction shaft assembly, a reverse gear shaft mechanism and the two-shaft power output mechanism of the speed change assembly are arranged on the periphery of a main shaft in the circumferential direction. And the structure is simple and reliable, the expansibility is excellent, and various functional modules such as human-controlled reversing, inertial reversing and active upshift and downshift according to real-time power can be flexibly expanded according to actual requirements. The motor can always and efficiently keep working in the current high-efficiency area according to the change of the driving intention, a multi-parameter control strategy with the consciousness and intention of people as priority is achieved, and harmony and unification of people, vehicles, roads and running resistance / running loads are achieved. The important scientific and engineering technology common key problem of traction / driving force-running resistance / load efficient and accurate balance control is solved.

The invention provides a micro-grid on-load soft start control method and an energy storage converter parallel system, and relates to the technical field of energy storage converter soft start. The control method comprises the following steps: randomly selecting one energy storage converter as a host, selecting the other energy storage converters as slaves, and sending a soft start instruction to the host by a control unit; and the host broadcasts a soft start instruction to each slave through the data bus. After the host and the slaves receive the soft start instruction, the relays are kept disconnected, constant-voltage and constant-frequency alternating-current soft start is synchronously executed, and the inversion voltage of the relays is constructed. The inverter voltage is detected in real time, and whether the AC soft start is completed is judged according to the inverter voltage; if so, the host broadcasts a relay closing signal to each slave; and closing each relay according to the relay closing signal to finish the on-load soft start of the micro-grid. The structure and the size of the energy storage converter parallel system are simplified, the stability of the micro-grid system is enhanced, and the service life of the micro-grid system is prolonged.

A hydrogen energy storage power station control system adopts a layered structure, comprehensively judges from electricity price information, renewable energy output, environment temperature and hydrogen storage tank state data through a reinforcement learning model, selects a hydrogen production, power generation or standby mode, and sets power targets of an electrolytic cell and a fuel cell; the middle layer uses an optimization algorithm to refine power distribution, the lower layer executes a power instruction through an industrial control algorithm, and an independent safety guarantee layer is set to monitor indexes such as hydrogen concentration, pressure and temperature. In the optimization process of the system, energy consumption and equipment life loss of an electrolytic bath and auxiliary equipment are considered at the same time, full-life-cycle economy is achieved, the economy of a hydrogen energy storage power station is improved, and the service life of key equipment is prolonged.

The invention relates to the technical field of research of reactor fuel irradiation, in particular to a fuel power calibration method for a loop irradiation test, which comprises the following steps: carrying out an out-of-reactor hydraulic test, and establishing a high-precision CFD (computational fluid dynamics) model of a fuel loop irradiation device based on a hydraulic test result; calculating the gamma heat release rate ratio of each material and the total heat release in the test section, and preliminarily determining the nuclear power value of the fuel assembly; based on the heat conduction differential equation and the convective heat transfer equation, the gamma heat release rate of the material and the nuclear power value of the fuel assembly are corrected; repeating the calculation process of S3 until the nuclear power value of the fuel assembly converges, and obtaining the final theoretical calculation value of the gamma heat release rate of each material and the nuclear power of the fuel assembly; and further verifying the calculation result to finally obtain the nuclear power of the fuel core body, and obtaining the burnup of the fuel assembly in the irradiation test through time integration. The method aims to solve the technical problem that the nuclear power of the fuel assembly calculated based on thermotechnical measurement data in a loop irradiation test has deviation compared with an actual value.

The utility model relates to a vehicle steering device, an independent steering angle module and a vehicle. The vehicle steering device comprises a rocker arm mechanism, a steering pull rod and a driving mechanism. The first end of the rocker arm mechanism is connected to a frame, the rocker arm mechanism can swing relative to the frame, the first end of the steering pull rod is hinged to the rocker arm mechanism, and the driving end of the driving mechanism is connected with the rocker arm mechanism and used for driving the rocker arm mechanism to swing. The second end of the steering pull rod is used for being rotatably connected with a steering knuckle. The vehicle steering device swings through the arranged rocker arm mechanism, so that the driving mechanism, the rocker arm mechanism, the steering pull rod and the steering knuckle can form a multi-stage connecting rod structure, the steering torque can be improved, the torque requirement that wheels continue to steer after rotating to a certain angle is met, and a large steering angle is achieved.

The invention relates to a method for testing the small torque of a vehicle-mounted motor. The method comprises the following steps: S1, calibrating a torque sensor; s2, small torque treatment; s3, installing the tested motor; s4, carrying out no-load test; s5, connecting a data acquisition system; s6, connecting a battery simulator; s7, testing data; and S8, data processing. According to the invention, the small-torque dynamometer is directly butted with the tested motor, so that the intermediate transmission of the axle box is reduced, the power and torque of the dynamometer are reduced, the inertia is reduced, the shaft loss of torque measurement is reduced, the range of the torque sensor is reduced, and the measurement precision is improved; the testing method can effectively solve factors such as insufficient testing precision of small torque and too large error caused by mechanical loss.

The invention relates to the technical field of photovoltaic materials, in particular to a light conversion agent, a packaging adhesive film and a photovoltaic module. The preparation method of the light conversion agent comprises the following steps: heating and dissolving compound powder as shown in a formula I in a first solvent, cooling and crystallizing, and collecting a solid; the first solvent is prepared from at least one of ethyl acetate, N-methyl-2-pyrrolidone and acetone. The fluorescence quantum efficiency of the light conversion agent provided by the invention at room temperature can reach up to 97.12%, and compared with the existing light conversion agent, the light conversion agent provided by the invention has the advantages of high fluorescence quantum efficiency, good ultraviolet resistance and the like. According to the photovoltaic module prepared by adopting the packaging adhesive film disclosed by the invention, the power of the module can be remarkably improved, and the power attenuation of the module after ultraviolet radiation can be reduced.

The invention discloses an iron-modified molybdenum disulfide-based piezoelectric catalytic material and a preparation method and application thereof.The preparation method comprises the following steps that ammonium molybdate and thiourea are mixed with water in proportion, and then a mixed solution is subjected to a hydrothermal reaction; drying the solution after the hydrothermal reaction to obtain molybdenum disulfide; molybdenum disulfide and a ferric iron salt solution are mixed and stirred, and then a reducing agent is added for reduction; and collecting and drying the reduced solution to obtain the iron-modified molybdenum disulfide-based piezoelectric catalytic material. A piezoelectric catalysis system of molybdenum disulfide can be more effectively utilized to generate hydrogen peroxide in situ, and Fenton-like reaction is carried out, so that pollutants are better removed.

According to the plug-in type low-temperature plasma array soil nitrogen fixation device, a plurality of low-temperature plasma reactors are inserted into soil in an array mode, a plurality of through holes are evenly distributed in the surface of a stainless steel pipe, the bottom of the stainless steel pipe is a circular truncated cone, and an opening is formed in the bottom of the stainless steel pipe; the stainless steel pipe is fixed at the lower end of the connecting firmware, the air pipe is arranged on the side edge of the connecting firmware, and the stainless steel electrode is fixed at the upper end of the connecting firmware; the metal electrode is arranged in the stainless steel tube as a high-voltage electrode and is fixed by the connecting firmware; the quartz tube is arranged in the stainless steel tube and sleeves the outer surface of the metal electrode to serve as a barrier medium; the power supply is connected with metal electrodes and stainless steel tubes; the air source is connected with the air pipe.

Systems and methods for signal transmission may include a wireless communication device receiving first information in signaling from a wireless communication node, the first information indicating a mode of at least one physical random access channel (PRACH) or downlink (DL) signal transmission. The wireless communication device may transmit a PRACH signal corresponding to the DL signal index to the wireless communication node in a random access (RA) occasion determined by the mode.

The invention relates to a positive pole piece and a preparation method thereof, and a secondary battery comprising the positive pole piece. The positive pole piece comprises a positive current collector; the positive electrode material layer is arranged on the surface of the positive electrode current collector, the positive electrode material layer comprises a positive electrode active material and a functional polymer shown in the formula (1) # imgabs0 #, and n is equal to 10-10000. The functional polymer captures active oxygen released from the positive electrode under a high-temperature condition, so that the reaction activity of the full-electricity positive electrode and the electrolyte is reduced, the heat release power and heat release amount of the full-electricity positive electrode material and the electrolyte are greatly reduced, and the safety of the battery is improved.

The invention discloses a wind turbine generator variable pitch PID gain dynamic adjustment optimization method and system. The method comprises the following steps that S1, a rotating speed-torque curve is determined; s2, variable-pitch PID gain setting is carried out under the limited rotating speed and the variable air density; s3, variable-pitch PID gain scheduling of the limited rotating speed is carried out; s4, variable-pitch PID gain scheduling of the variable air density is carried out; s5, performing variable pitch PID gain scheduling under variable turbulence; compared with an existing variable-pitch PID control method, the variable-pitch PID control method has the advantages that additional control means do not need to be added, the technical maturity is high, the needed hardware cost is low, robustness is good, the real-time performance is excellent, the influence of the limited rotating speed, air density and turbulence on variable-pitch PID gains is comprehensively considered, and the method is suitable for large-scale popularization and application. Therefore, the problems of overspeed rotating speed and power fluctuation of the generator caused by changes of the rotating speed and the air density under the condition of large turbulence are effectively reduced.

The invention discloses a five-shaft simple electric control speed change clutch plate type electric driving system which comprises a power input mechanism, a speed change assembly and a two-shaft power output mechanism, and the speed change assembly comprises a main shaft, a speed reduction shaft assembly, a frame clutch plate mechanism and an elastic mechanism. The system is simple and reliable in structure and excellent in expansibility, can flexibly expand various functional modules such as human-controlled reversing, inertial reversing and active upshift and downshift according to real-time power according to actual requirements, and meets the design requirements of platformization and modularization. Moreover, the motor can always work efficiently in the current high-efficiency area according to the change of the driving intention, a multi-parameter control strategy with the consciousness and intention of people as priority is realized, harmony and unification of people, vehicles, roads and running resistance / running load are realized, and the driving safety is improved. The important scientific and engineering technology common key problem of traction / driving force-running resistance / load efficient and accurate balance control is solved.

The invention discloses a multi-junction vertical cavity surface emitting laser with a heterogeneous tunnel junction and a preparation method thereof, relates to the field of semiconductor lasers, solves the problems of low power density, quantum efficiency and slope efficiency and high absorption loss of the existing vertical cavity surface emitting lasers, and the laser comprises, from top to bottom, a P electrode, a P-type Bragg reflector group, a first oxide layer, a first active region, a II-type heterogeneous tunnel junction, a second oxide layer, a second active region, an N-type Bragg reflector group, a substrate, and an N electrode. By introducing the II-type heterogeneous tunnel junction into the laser, a lower laser threshold and high power are ensured, while reducing the series resistance and the absorption between the valence bands at the tunnel junction, thereby realizing a high-performance multi-junction vertical cavity surface emitting laser.

The present invention discloses a reactive compensation capacity allocation method, apparatus and device of a wind-photovoltaic-energy storage station, the method includes: calculating a maximum stored-energy active power and a maximum wind-power active power under different actual photovoltaic active power conditions; calculating a station reactive loss and a station reactive power corresponding to each actual photovoltaic active power condition based on an actual photovoltaic active power, the maximum stored-energy active power and the maximum wind-power active power under each actual photovoltaic active power condition; determining a reactive compensation demand under each actual photovoltaic active power condition by using a difference between the station reactive loss and the station reactive power under each actual photovoltaic active power condition; and determining a reactive compensation capacity by using a maximum reactive compensation demand of the reactive compensation demand under each actual photovoltaic active power condition, so as to allocate an idle capacity of a stored-energy field area according to the reactive compensation capacity. The technical solutions of the present invention improve the accuracy of the reactive compensation capacity allocation of the wind-photovoltaic-energy storage station.

The invention discloses a photoelectric sensor system conversion efficiency calibration system and method based on a reverberation chamber, and belongs to the technical field of photoelectric sensor conversion efficiency calibration, the system comprises an electric wave reverberation chamber, a transmitting antenna, a reference antenna and a photoelectric field sensor system; the photoelectric field sensor system is composed of a photoelectric sensor, a laser source, a photoelectric detector, a polarization maintaining optical fiber and a single-mode optical fiber. In the calibration process, the reference antenna and the photoelectric sensor system are used as receiving ends respectively, receiving power at different stirring positions in the reverberation chamber is sampled to obtain two groups of transfer functions, and the total efficiency of the photoelectric sensor system is determined by comparing the two groups of transfer functions under the condition that the radiation efficiency of the reference antenna is known. The conversion efficiency of the photoelectric sensor system is obtained by combining the relation among the power, the field intensity and the total efficiency in the free space; and the effective averaging of the incident direction and the polarization state is realized by using the uniform and isotropic electromagnetic field characteristics of the reverberation chamber.

Provided are an energy conversion system, an over-temperature operation control method thereof, and a control apparatus (00), comprising: in accordance with the operating temperatures of at least two power modules, determining an over-temperature module and at least one non-over-temperature module; obtaining a derated operating power and a power derating difference value for the over-temperature module, and, in accordance with the power derating difference value, determining at least one increased-rating operating power, wherein the increased-rating operating power corresponds one-to-one to a non-over-temperature module; on the basis of the at least one increased-rating operating power, determining whether the system satisfies a preset no-derating operating condition; if the system satisfies the preset no-derating operating condition, then driving the over-temperature module to operate in accordance with the derated operating power, and driving the non-over-temperature module(s) to operate in accordance with the increased-rating operating power. By reducing the operating power of the over-temperature module, the temperature thereof is lowered, and by increasing the operating power of a non-over-temperature module, the overall power of the system can be kept unchanged, which is beneficial to improving system safety performance and power generation.

The invention relates to the technical field of photovoltaics, in particular to an EPE adhesive film, a preparation method thereof and a photovoltaic module. The EPE adhesive film comprises a first EVA layer, a POE layer and a second EVA layer which are arranged in sequence, the first EVA layer and the second EVA layer comprise EVA resin, a cross-linking agent, an assistant cross-linking agent, an antioxidant, a light stabilizer, a silane coupling agent and a surfactant; the POE layer comprises POE resin, a cross-linking agent, an assistant cross-linking agent, an antioxidant, a light stabilizer and a silane coupling agent; the surfactant comprises at least one of an alkyl glycoside surfactant, an alkyl betaine surfactant and an alkyl sodium sulfonate surfactant; the carbon atom number of alkyl in the surfactant is 6-24. In the adhesive film, the EVA layer and the POE layer have excellent bonding performance, under the condition that the POE thickness is low, a corresponding assembly can meet reliability testing, the cost of the adhesive film is reduced, and the bonding performance of the adhesive film is guaranteed.

The invention relates to a renewable energy local consumption method based on an isolated micro-grid, and the method comprises the steps: constructing a layered distributed cooperative control architecture for the micro-grid, enabling a local control layer to collect the operation environment parameters and performance parameters of power generation equipment and energy storage equipment in real time, and enabling a central control layer to carry out the multi-time-scale energy optimization configuration according to the real-time equipment parameters; the real-time power of the micro-grid is balanced by responding to instantaneous changes of renewable energy sources and loads in an ultra-short-term optimization manner; an energy distribution plan of the next day is formulated through short-term optimization; power generation equipment and energy storage configuration are optimized in a medium-and-long term manner, and then global optimization decision making is performed to obtain an energy scheduling plan among the regions; and the regional coordination layer performs cooperative control on equipment in the region based on the energy scheduling instruction. Compared with the prior art, the method has the advantages that the special environment and technical problems of high-cold and high-altitude areas are solved, the local consumption efficiency of renewable energy in the isolated micro-grid is remarkably improved, the wind curtailment rate and the light curtailment rate are reduced, and the stability and the reliability of the micro-grid system are enhanced.

The invention relates to the technical field of intelligent household appliances, and discloses a method for controlling an electric heating device of an air conditioner, and the electric heating device is a resistance type electric heating device. The method comprises the steps that under the condition that an electric heating device of the air conditioner is started to run, the current indoor environment temperature is obtained; according to the current indoor environment temperature, the target air gear of an indoor fan is determined; and controlling the indoor fan to execute the target wind gear. According to the method, under the condition that the electric heating power is set, the air outlet volume of the air conditioner is basically inversely proportional to the indoor environment temperature rising amplitude. Therefore, the matched air outlet volume can be determined based on the current indoor environment temperature. And therefore, the outlet air temperature meets the requirement of the current environment temperature working condition, and the comfort requirement of a user for the outlet air temperature is guaranteed. The invention further discloses a device for controlling the electric heating device of the air conditioner and the air conditioner.

The invention belongs to the technical field of diamond manufacturing, and particularly relates to a high-pressure manufacturing method of a self-sharpening diamond, a product and application, and the high-pressure manufacturing method of the self-sharpening diamond comprises the following steps: mixing graphite and an iron-nickel alloy, pressurizing to 6GPa or more, heating the pressurized graphite and iron-nickel alloy to 1400 DEG C or more, and cooling to room temperature to obtain the self-sharpening diamond. The self-sharpening diamond is obtained after the heating time of the graphite and the iron-nickel alloy is smaller than or equal to 4 minutes, the conversion rate of the graphite forming the self-sharpening diamond is larger than 50%, the self-sharpening diamond does not have an original growth face, and the self-sharpening diamond obtained through the high-pressure manufacturing method of the self-sharpening diamond can be smashed into the specific particle size to obtain self-sharpening diamond particles. The self-sharpening diamond particles can be used for producing polishing pads or fretsaws, the diameters of the self-sharpening diamond particles are smaller than 10 micrometers, the self-sharpening diamond particles can be used for polishing silicon or silicon carbide wafers, the self-sharpening diamond is high in growth speed, and the generation amount of the self-sharpening diamond can be increased.

The present invention belongs to the technical field of intelligent control of range hoods, and discloses a range hood outlet wind pressure prediction method, system, storage medium and processing terminal. The method uses an experimental method to obtain different reference speeds and corresponding reference currents, wind pressures and proportional factors of the range hood under standard working conditions; collects data of the current period through a sensor or a control panel, calculates the speed relative deviation and current relative deviation; substitutes them into a fuzzy calculation model to obtain the wind pressure deviation rate; calculates the public flue wind pressure value according to the wind pressure deviation rate, proportional factor and reference wind pressure value; substitutes the calculated public flue wind pressure into the control panel, and the control panel controls the motor speed in real time according to the public flue pressure value. The present invention uses the predicted public flue wind pressure value as a parameter to adjust the speed of the fan in real time, reduces the useless power and noise of the range hood in use while maintaining the air volume, and improves the energy utilization efficiency.

The invention relates to a generator concept experiment by adopting a gyro inertia force auxiliary power generation technology, a first machine is preliminarily manufactured, the machine uses gyro free rotation inertia force as a continuous power source to assist power generation, test verification is carried out, a no-load test result shows that the actual output voltage of a generator is 500V, the frequency is 180Hz, and after step-by-step load voltage reduction is carried out, the output voltage of the generator is zero. When the output voltage and frequency reach the national standard, the generated electric quantity is 400 watts; therefore, a conclusion that the residual electric quantity is 160 watts when 240 watts of the driving motor is subtracted from 400 watts is obtained, namely 160 watts of power can be supplied for external work; along with continuous reduction of petroleum and natural gas and high-quality development of productivity in China, the invention is mainly used for replacing an internal combustion engine on transportation tools such as automobiles and the like, can also be used in civil power supply, and belongs to the field of energy and power engineering. The machine is simple in structure, and has the key points of special gyroscope, special application of gyroscope inertia force and proportional matching of other equipment.