1499 results about "Motor power" patented technology

The invention relates to the technical field of water pump control, and discloses a water pump energy-saving optimization control method and system. The method comprises the steps of obtaining water pump outlet pressure, pipe network tail end flow and water pump motor power monitoring signals; calculating a flow-pressure propagation time compensation coefficient and a pressure fluctuation compensation value to eliminate the influence of signal propagation lag and amplitude fluctuation; extracting an operation condition feature vector by combining the motor power frequency domain energy distribution feature and the pressure fluctuation compensation value, and matching the operation condition feature vector with an energy-saving parameter mapping rule base to generate an energy-saving parameter combination; correcting a water pump efficiency reference curve in real time based on the combination, outputting an efficiency attenuation factor, and generating a control deviation value in combination with a target water supply demand; according to the control deviation value, the water pump rotating speed adjusting quantity and a start-stop priority sequence are calculated, and the priority sequence is optimized in combination with historical operation data to generate a machine number control instruction; and finally synthesizing a control signal to drive an execution mechanism.

The invention belongs to the technical field of automatic control, and relates to a self-adaptive control method based on multi-physical modeling. According to the method, by collecting multi-source data of a controlled object, a thermal, electric and force coupling relation used for control analysis is established so as to describe dynamic responses under different operation conditions. And calculating stress, motor power, energy consumption and temperature rise change in the operation process based on a coupling relation to obtain system performance data, verifying stability and safety of different control parameter combinations in a simulation environment, and obtaining performance indexes including operation retardation risk, overload safety margin and safety response time limit. And according to a simulation result, under the condition of meeting safety constraints, taking energy consumption and temperature rise as optimization targets, adjusting control parameters, generating optimized control parameter configuration data, and feeding back the optimized control parameter configuration data to a control unit, so that closed-loop adaptive control and performance optimization are realized. According to the invention, through multi-physical coupling modeling and simulation optimization, the adaptability and reliability of the automatic control system are improved.

A concrete mortar mixing and stirring system belongs to the technical field of concrete production equipment. Aiming at the problems that an existing stirring system is difficult to accurately judge the mixing uniformity of concrete mortar and the quality is easily influenced due to excessive stirring or insufficient stirring, the system comprises a stirring tank, a vibration signal acquisition unit, a torque monitoring unit and a control unit, stirring blades in a stirring tank are driven by a motor, a vibration signal acquisition unit captures a tank body vibration signal, a torque monitoring unit detects the torque change of the motor, and a control unit decomposes the tank body vibration signal into a frequency domain signal and extracts a preset aggregate collision vibration frequency band energy value to generate a vibration energy sequence; and analyzing the torque change fluctuation intensity to generate a torque variation coefficient sequence, calculating a correlation coefficient sequence of the two, generating an adaptive shutdown threshold by a sliding time window, and cutting off a motor power supply when the correlation coefficient sequence is continuously lower than the threshold for a preset number of times. The device is mainly used for automatic stirring control of concrete mortar, and precise starting and stopping of the stirring process are achieved.

The invention discloses an air-ground multi-mode cross-domain robot system with a clutch structure and a control method. The air-ground multi-mode cross-domain robot system comprises a machine body, wings, clutch assemblies and rotor assemblies. The aircraft body drives the connecting rod mechanism through the steering engine to control the bilateral wings to move. Rotor driving motors, wheels and transmission gear sets are integrated on the wings, and motor power can be distributed to wheel driving shafts and propeller shafts. The clutch assembly is connected with a motor and a propeller shaft through a ratchet wheel meshing mechanism, and power on-off control is achieved, in the ground running process, a clutch is separated to stop rotation of a propeller, power is fully output to wheels to serve as driving wheels, and in the flight mode, the clutch is meshed to synchronously drive rotors and the wheels. According to the system, bimodal power distribution is achieved through a single motor, a driving wheel motor does not need to be additionally arranged, the structural complexity is effectively reduced, the moving speed and controllability are remarkably improved through the ground mode propeller static design, the advantage of cross-domain operation is achieved, and the system is suitable for complex task scenes.

The invention belongs to the technical field of equipment energy-saving control, and particularly discloses and provides an energy-saving control system based on a direct-current bus system, which comprises a direct-current bus framework module, an equipment state acquisition module, an equipment state analysis module and an energy flow control module. According to the method, the direct current bus voltage and the multi-dimensional operation data of the equipment motor are collected in real time, the motor power state space model is constructed by means of the Kalman filter, and the power sudden change probability of the future preset time period is accurately predicted. And meanwhile, an energy distribution strategy is dynamically adjusted in combination with the total power demand generated by the production schedule and according to the braking type and the power sudden change probability. The defect that dynamic power difference cannot be tracked through fixed threshold value feed-forward compensation in the prior art is effectively overcome, so that bus energy deposition is avoided, braking energy is distributed according to needs, meanwhile, it can be ensured that the braking energy can be recycled timely and correctly, and energy waste caused by misjudgment is reduced.

The invention relates to the technical field of electric workover rig thermal management, and discloses a workover pump truck electric drive thermal management method and system, and the system comprises a multi-source temperature collection module, an operation state monitoring module, a thermal management analysis module, a strategy matching engine module, a dynamic execution control module, a feedback optimization module, and a prediction decision module. The method comprises the following steps: acquiring environment temperature, motor temperature, battery temperature and cooling liquid temperature data; obtaining motor power, battery current and a vehicle operation mode; generating a thermal management demand level based on the temperature and the operating parameters; matching natural cooling, air cooling or liquid cooling strategies according to grades; cooling operation is executed, the temperature change rate is calculated in real time, and the cooling intensity is dynamically adjusted; when the threshold value is exceeded, liquid cooling cooperative control is started; predicting a thermal load trend through an LSTM model, generating a dynamic cooling plan, and optimizing an execution priority; and a thermal management efficiency evaluation report is output, so that the operation reliability and energy efficiency of the electrically-driven workover pump truck are improved.

The invention relates to a motor power self-adaptive control method and system based on multi-dimensional sensor data, and the method comprises the steps: collecting multi-dimensional signals, such as ground resistance, motor temperature and battery voltage, in real time, carrying out the self-adaptive filtering and noise reduction, analyzing the correlation of all parameters through a multivariable decoupling algorithm, and determining a power demand weight; when it is detected that the ground resistance is a dominant factor, the system generates a load feature vector through weighted fusion, a database is matched to determine an optimal power target value, and PWM output is dynamically adjusted through a fuzzy control algorithm; and a closed-loop feedback mechanism continuously optimizes control parameters to ensure that the system quickly responds to sudden change of ground resistance. According to the method, intelligent adaptation of the motor power is achieved, the problems that adjustment lags behind and multi-parameter coupling processing is insufficient in the traditional technology are effectively solved, the stability of the sweeping robot under the complex ground working condition is remarkably improved, and the service life of the motor and the service life of a battery are remarkably prolonged.

The invention relates to the field of locomotive power battery electric quantity control, and particularly discloses a locomotive power battery electric quantity hysteresis equalization control method, which comprises the following steps that: a traction force exerting mode is reset into an axle load transfer mode, and the initial value of an electric quantity equalization compensation coefficient K is a rack axle load transfer coefficient corresponding to zero speed; judging whether the current mode is a power battery power supply mode; if yes, the TCU receives the electric quantity of a front power battery and the electric quantity of a rear power battery in real time according to the current locomotive working mode, calculates the electric quantity average value difference value, monitors the auxiliary load power and the traction motor power and calculates the power difference value; entering a hysteresis control logic process; calculating a dynamic traction force compensation coefficient, ensuring that the traction force compensation amount is matched with the actual load characteristic of the system, correcting the traction characteristic curve in real time, and dynamically compensating the electric quantity difference of the battery; and performing traction distribution control according to the locomotive speed and outputting corresponding traction.

The invention discloses a dual-redundancy servo controller and a main-standby autonomous switching method thereof, and belongs to the technical field of electric servo control. The controller comprises a host machine and a standby machine; each of the host and the standby machine comprises a DSP (Digital Signal Processor), an FPGA (Field Programmable Gate Array), a hardware ID (Identity) identification module, a motor power driving IPM (Intelligent Power Module) and a generator tripping instruction module which are in signal connection; the DSP and the FPGA are respectively connected with an LDO (Low Dropout Regulator) power module; the FPGA is in communication connection with the control system; the motor power driving IPM is connected with the execution mechanism; the DSP processors of the host and the standby machine are in signal connection; and the switching instruction modules of the host and the standby are in signal connection. The invention discloses a main / standby autonomous switching method for a dual-redundancy servo controller, which adopts a DSP and an FPGA to cooperatively detect and process faults, improves the fault detection rate by 5%, and reduces the possibility that the output of an IPM module is not turned off by 20% when a fault occurs; three heterogeneous redundant generator tripping modes of hardware generator tripping, serial port generator tripping and heartbeat generator tripping are adopted, and the reliability of main and standby independent generator tripping is improved by 20%.

The invention provides a path planning and energy management cooperative regulation and control method for a multi-agent unmanned aerial vehicle, and the method comprises the following steps: building a kinetic model based on a six-degree-of-freedom motion equation of a four-rotor unmanned aerial vehicle, and building an energy consumption model through combining the power of a motor and the discharge characteristics of a battery; sensing the state of the unmanned aerial vehicle in real time, defining a state space and an action space of a deep reinforcement learning algorithm, and generating navigation points by using the deep reinforcement learning algorithm; receiving a delivery request, and dynamically allocating tasks according to the state of the unmanned aerial vehicle by adopting a deep reinforcement learning algorithm; performing path planning on the unmanned aerial vehicle for task allocation by adopting an A * algorithm according to the navigation points in combination with the multi-dimensional cost, and obtaining an optimal path; dispersing the optimal path into a speed instruction, and dynamically adjusting the course angle and the flight speed of the unmanned aerial vehicle through a PID controller; through combination of deep reinforcement learning and an A * algorithm, the problems of path planning and energy management of the multi-agent quad-rotor unmanned aerial vehicle logistics distribution system in complex terrains are effectively solved.

The invention discloses an energy management method and device for a trailer, a storage medium and a program product, and the method comprises the steps: dividing any historical route through which the trailer travels, and obtaining sub-road sections of the historical route; determining the optimal motor power of each sub-road section according to the historical driving parameters corresponding to the sub-road sections of the historical route; according to the optimal motor power of each sub-road section and the fixed energy requirement of the trailer, different battery electric quantities corresponding to the optimal motor power in the historical route are calculated, and the corresponding relation between the optimal motor power and the battery electric quantities serves as an energy management strategy of the historical route; wherein when the driving route of the trailer is the historical route, the energy output of a battery in the trailer is controlled according to the energy management strategy corresponding to the historical route. According to the technical scheme, the technical effects that energy management is conducted on the battery of the trailer, and the energy of the battery is reasonably distributed are achieved.

The invention relates to the technical field of pan-tilt motor control, in particular to an intelligent control method for an unmanned aerial vehicle pan-tilt stability augmentation micro motor. Synchronously acquiring operation parameter time sequence data, image data, flight attitude data, environment wind speed, pan-tilt motor power and rotating speed of the unmanned aerial vehicle; constructing a state fluctuation index (based on operation parameter time sequence data) and a flight attitude deviation degree (fusing wind speed change and flight attitude deviation), and further generating a wind resistance capability index to evaluate the influence degree of the environment on the unmanned aerial vehicle; meanwhile, on the basis of the change characteristics of the parting attitude data, the compensation effect of the pan-tilt motor is quantified by combining the image fuzziness, the power of the motor and the rotating speed fluctuation; finally, PID parameters are dynamically optimized based on double indexes of the wind resistance and the compensation effect, scene adaptation of a pan-tilt motor control strategy is achieved, the stability of the unmanned aerial vehicle is improved in a complex wind field, and the image data quality is guaranteed.

The invention discloses an electric motorcycle intelligent safety control system based on multi-sensor fusion. The system comprises a sensor module, a data processing unit, a target detection and classification module, a danger level evaluation module and a motor control module, and realizes all-weather and all-around environmental perception and target detection through data fusion of a millimeter wave radar, a visible light camera and an infrared camera. And the power output of the motor is intelligently regulated and controlled according to the detected danger level, so that the driving safety of the electric motorcycle is improved. The problem of limitation of a single sensor of an existing electric motorcycle safety system is solved, the stability and reliability of the system in a complex environment are improved, and early warning and intelligent prevention and control of potential risks are achieved.

The invention discloses a dual-motor dual-rotor flywheel energy storage device which comprises a shell which is arranged in a sealed mode. The flywheel is connected with a motor and arranged on the inner wall of the shell, and the flywheel is arranged to be in a split type; the first wheel body is arranged right above the second wheel body, so that the axial thickness of the flywheel is increased, the energy storage capacity of the whole device is improved, meanwhile, the problem of insufficient quenching depth caused by a flywheel with a large axial size can be solved, and the flywheel is arranged into a split type, so that the axial thickness of a forge piece can be reduced, and the hardenability is improved. The two groups of motors are respectively connected with the first wheel body and the second wheel body, so that the heat dissipation areas of the stators and the rotors in the motors are increased, and the problem of heat dissipation caused by the increase of the structural sizes of the stators and the rotors of the motors due to higher motor power is solved.

The invention provides a generator and battery power distribution method and device based on model prediction control, and belongs to the technical field of power distribution. The method provided by the invention comprises the following steps: loading a preset dynamic model library; generating and calibrating a total load power prediction sequence based on the flight plan and the rotor aerodynamic power model; calling the dynamic model library to predict and control the rolling optimization to output the optimal power instruction sequence of the generator; in the rolling optimization execution process, bus voltage dynamic characteristics are monitored in real time, a graded response mechanism is started based on a turboshaft engine dynamic model when load sudden change occurs, and the power of a generator and the power of a battery are adjusted; in the load abrupt change response process, rolling optimization is executed again based on the adjusted power and the corresponding system state, meanwhile, feed-forward compensation is carried out on the bus voltage deviation, and the voltage is controlled to be within a stable interval set by rolling optimization by adjusting the power of the generator; and circularly executing until the flight task is finished, and determining the generator power and the battery power.

The invention discloses a lithium battery endurance prolonging method and system based on motor power curve optimization, and the method comprises the following steps: a motor controller collects a voltage signal of a lithium battery and a current signal of a motor in real time; the real residual capacity SOC of the lithium battery is calculated based on a dynamic internal resistance model, the endurance mileage is remarkably prolonged, the endurance mileage of the vehicle can be increased by 15-22 km and averagely prolonged by about 15% in different test scenes through triple optimization measures, and the problem that the endurance of a BMS-free low-voltage new energy vehicle is short is effectively solved. And the cost advantage is obvious: the existing current detection and ADC resources of the controller are completely reused, hardware does not need to be newly added, the method can be realized only through software upgrading, the problems that the cost is increased by 40% and wiring is complex due to the addition of a BMS system are avoided, and the production cost of the low-voltage new energy vehicle is reduced.

The invention relates to a transverse magnetic circuit module complementary magnetic flux reverse motor, comprising: a stator assembly comprising a plurality of U-shaped stator cores arranged circumferentially, a front module permanent magnet, a rear module permanent magnet, a front module armature winding and a rear module armature winding; and the rotor assembly comprises a front rotor module and a rear rotor module which are axially distributed and have the same structure, rotor salient pole teeth are respectively arranged on the inner side surfaces of the front rotor module and the rear rotor module along the circumferential direction, and the rotor salient pole teeth on the front rotor module and the rotor salient pole teeth on the rear rotor module are arranged in a staggered manner along the circumferential angle. The electromagnetic torque density is remarkably improved through magnetic circuit topology optimization, more excellent power output characteristics are achieved, meanwhile, armature winding turn chain magnetic flux directions of the front module and the rear module are opposite, the phase difference is 180 deg electrical angle, magnetic linkages of the two modules are complementary, even harmonics of the magnetic linkages are counteracted after synthesis, in addition, the unique stator structure improves the air gap magnetic density of the motor, and the motor efficiency is improved. And the motor power density is improved, and the application and popularization value is extremely high.

The invention relates to the technical field of electric drive axle control, and discloses an electric drive axle motor and gearbox integrated control system based on an SIC module. The system comprises a power distribution module, a torque coordination module, a temperature field balancing module, an efficiency optimization module and a system integrated control module. The power distribution module integrates the motor power, the transmission ratio of a gearbox and the axle end torque requirement according to the real-time state of the electric drive axle, distributes regulation and control values and parameters, and generates a power control parameter set; the torque coordination module analyzes the influence of power switching on the system stability, adjusts the torque transmission balance and generates a coordination parameter set; the temperature field module analyzes a thermal field of the SIC module, adjusts heat dissipation parameters and generates a temperature regulation and control result; the efficiency optimization module extracts efficiency fluctuation and energy consumption offset to generate an optimization data set; and the system integration module analyzes the overall efficiency and optimization time, and generates an integrated control data table. According to the system, cooperative control of the motor and the gearbox is achieved, SIC heat dissipation is optimized, and the efficiency and reliability of the system are improved.

A method of operating a washing machine appliance includes initiating a spin cycle by operating the motor to spin the wash basket to a first speed, performing a first acceleration by operating the motor to accelerate the wash basket from the first speed to a second speed, obtaining a first average motor power of the motor while performing the first acceleration, decelerating the wash basket to the first speed, performing a second acceleration by operating the motor to accelerate the wash basket from the first speed to the second speed, obtaining a second average motor power of the motor while performing the second acceleration, and stopping the spin cycle in response to determining that a reduction in a remaining moisture content exceeds a target reduction in the remaining moisture content based at least in part on the first average motor power and the second average motor power.

A closed-loop control device includes: the closed-loop control device which is configured for: detecting a generator frequency (fG) of the generator as a controlled variable; determining a control deviation (ef) as a difference between the generator frequency (fG) which is detected and a target generator frequency (fsoll); determining a target torque (Msoll) as a manipulated variable for controlling an internal combustion engine as a function of the control deviation (ef); using a control rule for determining the target torque (Msoll); and adapting the control rule—which is used to determine the target torque (Msoll)—as a function of at least one adaptation variable, the at least one adaptation variable being selected from a group consisting of the generator frequency (fG) which is detected, a target torque variable, and a generator power.

The invention belongs to the technical field of engineering machinery, and particularly relates to a transmission system, a control method of the transmission system and engineering machinery, the transmission system comprises a coupling assembly, the coupling assembly comprises a first gear, a second gear, a third gear, a fourth gear and a coupling sliding sleeve, and when the coupling sliding sleeve connects the first gear with the second gear, the third gear is driven to rotate; power of the PTO motor is converged into the first output shaft through the first gear, the second gear and the third gear, the PTO motor and the walking motor jointly drive the walking system, power compensation on the walking motor can be achieved when the walking speed change assembly shifts gears, and it is guaranteed that gear shifting power is not interrupted; when the walking speed change assembly is in a neutral gear state, if the coupling sliding sleeve enables the first gear and the fourth gear to be connected, power of the walking motor is converged into the first intermediate shaft through the fourth gear and the first gear, and the power is transmitted to the second output shaft through the PTO speed change assembly by the first intermediate shaft, so that redundant power of the walking motor is called when PTO load demand suddenly increases; and the motor power utilization rate is improved.

The invention discloses a double-machine regenerative steam-electricity double-drive small turbine thermodynamic system and a control method, belongs to the technical field of power generation, and aims to solve the problem that steam extraction parameter reduction and system power balance maintenance cannot be both considered in the prior art. According to the system, the MCT is adopted to extract exhaust steam of the ultrahigh-pressure cylinder to drive the water feeding pump and the variable-frequency generator, and meanwhile, a low-superheat-degree steam source is provided for the multi-stage heater. When P is greater than Pmax, executing at least one of the following control strategies: (a) adjusting the opening degree of a steam inlet valve of the MCT; (b) the opening degree of an MCT steam exhaust valve is adjusted; (c) adjusting the opening degree of a heater bypass valve; the steam exhaust pressure of the MCT is kept stable through three-way closed-loop control, and safe and efficient operation is achieved by combining power compensation of the variable-frequency generator.

The invention relates to a modular suspension axial magnetic flux shielding pump which comprises a pump shell and a machine shell installed on the pump shell, a pump cavity is formed in the pump shell, a water inlet and a water outlet are formed in the pump shell, a pump shaft is fixedly arranged in the center of the machine shell and extends into the pump cavity, an impeller rotationally installed on the pump shaft is arranged in the pump cavity, and a motor is arranged in the pump cavity. A rotor mounting groove is formed in the surface, facing the machine shell, of the impeller, a rotor module is arranged in the rotor mounting groove, and a rotor shielding sleeve for sealing the rotor mounting groove is arranged on the impeller; a stator installation groove is formed in the machine shell around the pump shaft, a stator module is arranged in the stator installation groove, the stator module and the rotor module are oppositely arranged, and a stator shielding plate for sealing the stator installation groove is arranged on the machine shell. The planar circular ring stator shielding plate is adopted, the manufacturing cost is reduced, the assembly process effect is simplified, the machine shell adopts bilateral water cooling, the motor power density is improved, the motor cost effect is reduced, the stator and rotor modular design is achieved, the rotor module rotates, the pump shaft is fixed, and assembly is simple.

The invention provides a self-adaptive control method and system for a reciprocating cutting tool. The method comprises the steps that a working current signal of a driving motor, a reciprocating motion frequency signal of a saw blade and a three-axis vibration signal of the saw blade are collected in real time; calculating an average value component and a fluctuation peak value component of the working current signal, and calculating a vibration energy component of the three-axis vibration signal in the cutting direction; fusing the average value component, the fluctuation peak component and the vibration energy component in the cutting direction to generate a comprehensive load index of the current cutting period; jointly inputting the comprehensive load index, the frequency deviation and the change rate of the comprehensive load index into an adaptive strategy mapping model; a load control instruction is output, and the load control instruction comprises a feeding speed adjusting quantity, a motor power adjusting quantity and a torque curve adjusting parameter; and the feeding speed of the reciprocating cutting tool, the output power of the driving motor and the waveform characteristics of the instantaneous torque output curve of the driving motor in the single round-trip period are cooperatively adjusted according to the instruction.

The application provides a power assembly with reducer side wire outlet, a double-motor power assembly and an electric vehicle. The power assembly comprises an intermediate integrated shell, a resolver sensor, a motor and a reducer. The intermediate integrated shell comprises a partition plate and two circumferential shells. One circumferential shell is used for fixing a motor stator of the motor and accommodating a motor rotor of the motor, and comprises at least one through hole. The other circumferential shell is used for accommodating a gear set of the reducer. The partition plate is used for separating the inner cavities of the two circumferential shells. The partition plate comprises a shaft hole and at least one wire outlet hole. The shaft hole and the at least one wire outlet hole are used for connecting the inner cavities of the two circumferential shells. The shaft hole is coaxially arranged with an input shaft of the reducer or a motor shaft of the motor. The distance between the at least one wire outlet hole and the center point of the shaft hole is greater than the inner diameter of a resolver stator of the resolver sensor. The power assembly provided by the application has a smaller axial dimension.

The invention relates to the technical field of coal conveying safety monitoring, and discloses a method for detecting foreign matters on a coal conveying belt in a coal conveying system. The method comprises the steps that laser scanning point clouds and spectral imaging information are collected from multiple azimuth angles, a multi-dimensional light field model representing belt surface geometric topology and material reflection characteristics is established, and a driving motor power spectrum and a bearing vibration spectrum are synchronously obtained. And associating the multi-source information, carrying out three-dimensional dynamic reconstruction and material marking on the conveying load, and further separating out the non-coal geometry mixed in the coal flow. And performing spectral feature inversion and mechanical response simulation based on material physical attributes on the separated foreign matter geometry, and performing adaptive mode matching on the result and a non-coal substance standard feature library, thereby accurately identifying the foreign matter type and evaluating the confidence coefficient. And the mechanical arm at the designated position is triggered to execute end effector path planning according to the recognition result. According to the invention, accurate and robust detection and positioning of the foreign matters on the coal conveying belt are realized.

The invention provides a personalized endurance mileage recommendation method and system for a storage battery motorcycle user, and relates to the technical field of data processing, and the method comprises the steps: 1, obtaining basic parameters of a storage battery motorcycle, including battery capacity, motor power and average energy consumption data in a standard test environment; 2, on the basis of the basic parameters, actual driving data of the user are collected in real time, and the actual driving data comprise driving road condition types, gradient changes, driving speed fluctuations, starting and stopping frequencies and acceleration or braking behaviors; and real-time coordinates of the battery pack center position, the motor installation position and the vehicle gravity center position of the storage battery motorcycle are detected in real time through a vehicle-mounted sensor. According to the method, the personalized endurance mileage recommendation value is accurately generated and fed back in real time by fusing the vehicle basic parameters, the real-time driving data and the dynamic spatial relationship analysis, so that the mileage anxiety of the user is effectively relieved, and the driving experience and the vehicle energy efficiency optimization capability are improved.

The invention relates to the technical field of motor stator heat dissipation, and discloses a stator heat dissipation structure and a motor. The stator heat dissipation structure comprises a stator iron core, the stator iron core is provided with heat dissipation grooves and a plurality of stator teeth, the heat dissipation grooves are located in the outer wall face of the stator iron core, and tooth grooves are formed between the adjacent stator teeth; the stator winding comprises a plurality of coils, the coils are wound on the stator teeth, and every two adjacent coils are arranged in one tooth groove at intervals; and the heat dissipation pipes are positioned between the two adjacent coils and in the heat dissipation grooves. Therefore, the structure of the stator core does not need to be obviously changed, and the stator core and the stator winding can be cooled at the same time. The heat dissipation capability of the motor is effectively improved, and the power output specification and reliability of the motor are improved.

A motor power source regulation circuit, a control method and an electronic device are provided. The motor power source regulation circuit includes a power factor correction circuit, an isolation circuit, a first power source conversion circuit, a second power source conversion circuit and a control circuit. The isolation circuit includes a first switch sub-circuit and an isolation transformer. The power factor correction circuit regulates an AC input signal to a first DC signal. The first switch sub-circuit converts the first DC signal to a first AC signal. The isolation transformer converts the first AC signal to two or more second AC signals. The first power source conversion circuit converts the second AC signal to a DC drive signal and outputs it to a DC motor. The second power source conversion circuit converts the second AC signal to an AC drive signal and outputs it to an AC motor.