60results about How to "Timely protection" patented technology

The invention relates to the technical field of remote control or regulation and control, in particular to a feeder automation terminal with a circuit breaker operation state telemetering function, which comprises a first acquisition module used for acquiring current current data and a historical current data sequence; the second acquisition module is used for obtaining a characteristic ratio at the current monitoring moment according to the spectrogram to be analyzed, and obtaining a non-fundamental wave content change characterization value at the current monitoring moment according to the characteristic ratio at the current monitoring moment and the characteristic ratio at the neighbor historical monitoring moment; the third acquisition module is used for obtaining a target abnormal characterization value according to the non-fundamental wave content change characterization value sequence, the characteristic ratio at the current monitoring moment and the non-fundamental wave content change characterization value; and the control module is used for the feeder automation terminal to remotely control the circuit breaker according to the target abnormal characterization value. According to the invention, the accuracy of controlling the circuit breaker by the feeder automation terminal can be improved.

The invention discloses a switch cabinet electric leakage emergency protection processing device, and belongs to the technical field of switch cabinet electric leakage protection, the switch cabinet electric leakage emergency protection processing device comprises a box body fixedly arranged on the inner bottom surface of a cabinet body, an electric leakage processing assembly is arranged in the box body, and a live wire and a zero wire respectively penetrate through an inlet wire fixing assembly, the electric leakage processing assembly and an outlet wire fixing assembly in sequence; the electric leakage processing assembly comprises an automatic disconnection assembly and a current abnormity triggering assembly, the current abnormity triggering assembly comprises a circular magnetic ring, the peripheral outer wall of the circular magnetic ring is wrapped with a copper wire, the circular magnetic ring is fixedly arranged in the box body and corresponds to the outgoing line fixing assembly, and the live wire and the zero wire both penetrate through the middle of the circular magnetic ring. And the live wire and the zero wire are wound on the circular magnetic ring for one circle. When a small magnetic field is subtracted from a large magnetic field, a magnetic field is cutting a copper wire coil, current is generated in the coil, the current generated by a copper wire flows into the current abnormity triggering assembly, the current abnormity triggering assembly controls the automatic disconnection assembly to disconnect a circuit, and timely power-off protection of the switch cabinet is realized.

The utility model relates to a string type high-capacity energy storage box transformer substation, which comprises a base, a box body, a transformer, a low-voltage cabinet, a high-voltage cabinet and an energy storage converter, the box body and the energy storage converter are arranged on the base, and the energy storage converter is arranged on one side of the box body; the box body comprises a transformer chamber, a low-voltage chamber and a high-voltage chamber, and the low-voltage chamber and the high-voltage chamber are arranged on one side of the transformer chamber; the high-voltage cabinet is arranged in the high-voltage chamber, the low-voltage cabinet is arranged in the low-voltage chamber, and the low-voltage cabinet and the high-voltage cabinet are connected with the transformer; the transformer is connected with the energy storage converter; a plurality of ventilation openings are formed in the side walls of the two ends, corresponding to the transformer chamber, of the box body, and fans are arranged at the positions, corresponding to the ventilation openings, of the inner wall of the box body; an induction module and a measurement and control instrument are arranged in the transformer chamber, the input end of the measurement and control instrument is connected with the induction module, and the measurement and control instrument is connected with the transformer. Compared with the prior art, the heat dissipation efficiency can be improved, equipment can be protected in time, and potential safety hazards are reduced.

The invention discloses an exoskeleton robot abnormal working condition automatic response and risk avoiding decision-making method, and relates to the technical field of exoskeleton, and the method comprises the steps: deploying a plurality of types of sensors to synchronously collect environment data, human physiological data and exoskeleton operation data, and carrying out the preprocessing to remove interference; through fusion of abnormal harmonic detection and a finite-state machine, dangerous working conditions such as wind speed abrupt change are identified, and grades are judged; monitoring eye movement and heart rate variability data in real time, quantifying cognitive load and grading; a decision rule base is constructed, and joint locking and other adaptive risk avoiding decisions are generated in combination with working condition types, grades and cognitive loads; the controller drives the execution mechanism to execute a decision, continuously monitors data at a frequency, dynamically adjusts the decision or recovers a normal mode. According to the method, dangerous working conditions are accurately identified through multi-source data fusion, adaptive risk avoiding measures are automatically triggered, a power assisting strategy is dynamically adjusted in combination with cognitive loads, and operation flexibility and physical output are balanced.

The invention relates to the technical field of ship engineering, and discloses an anti-explosion pressure relief system for a ship cabin and a control method thereof.The cabin comprises a wall plate provided with a relief opening, and the anti-explosion pressure relief system comprises a sealing gasket annularly arranged on the portion, on the periphery of the relief opening, of the wall plate; the sealing plate abuts against the outer side end of the sealing gasket; the pressing assembly comprises a gas cylinder, a cylinder, a pressure release valve, a first electromagnetic valve and a second electromagnetic valve, the end of a piston rod of the cylinder abuts against the outer side end of the sealing plate, the pressure release valve is arranged in a rodless cavity of the cylinder, the gas cylinder communicates with the rodless cavity of the cylinder through a first pipeline, the gas cylinder communicates with the cabin through a second pipeline, the first electromagnetic valve is arranged on the first pipeline, and the second electromagnetic valve is arranged on the second pipeline. The second electromagnetic valve is arranged on the second pipeline, and inert gas is contained in the gas cylinder; and the control assembly is electrically connected with the pressure release valve, the first electromagnetic valve and the second electromagnetic valve. According to the anti-explosion pressure relief system for the ship cabin and the control method of the anti-explosion pressure relief system, the pressure in the cabin can be kept stable, and the problem of fire disasters can be solved.

The utility model discloses a redundancy protection device of a gas-liquid control valve, which relates to the technical field of protection devices and comprises a valve pipe, flange rings are fixedly connected to the front end and the rear end of the valve pipe, a ball valve core is arranged in the valve pipe, a driving component is arranged on a mounting table above the valve pipe, a reset shell is vertically and fixedly connected to the lower part of the valve pipe, and a reset component is arranged in the reset shell. The upper and lower ends of the ball valve core are respectively connected with a driving component and a resetting component; according to the utility model, through the cooperation of the reset assembly and the ball valve core, the ball valve core can be automatically driven in time to rotate to close a flow channel and protect downstream equipment in case of sudden power failure, so that the practicability is improved, and the redundancy protection capability is realized; through a quick dismounting structure of the reset assembly, a reset structure can be conveniently and quickly replaced at regular intervals, so that stable operation of the reset structure is ensured, the practicability is improved, and the capability of stably triggering redundancy protection by the device is realized; finally, the problem of protection capability failure caused by difficult disassembly and assembly of an internal reset structure of existing equipment due to aging is solved.

The application belongs to the technical field of marine chemical analysis, and relates to an underwater in-situ mass spectrometer acquisition control system and method. The method comprises the following steps: a vacuum extraction step: the coarse extraction mode and the fine extraction mode are adaptively switched, the ion detection device is vacuum-extracted until the pressure is reduced to a preset threshold, and a required vacuum degree is maintained; a preheating preparation step: the membrane sampling device is initially sampled, and heating is performed at the same time until a preset working temperature is reached and the temperature is maintained constant; a dissolved gas formal detection step: the membrane sampling device is continuously supplied with water samples to be detected, and in-situ mass spectrum detection of dissolved gas in the water samples is completed; an instrument cabin gas discharge step: when it is detected that the underwater in-situ mass spectrometer floats to the water surface and the air pressure in the instrument cabin exceeds an upper limit threshold of gas discharge, the instrument cabin is discharged; a liquid leakage protection step: when liquid leakage occurs in the sampling cabin and the two core contacts are short-circuited, the high-pressure electromagnetic valve in the normally open state is closed to quickly block the liquid from entering the ion detection device.

This utility model relates to the field of steering gear lubrication technology, specifically a high-efficiency and energy-saving steering gear transmission device for ships. It includes a steering gear body, a transmission gear set inside the steering gear body, multiple temperature detection units for detecting the internal temperature of the steering gear body, a liquid cooling unit body installed on the outside of the steering gear body, and heat dissipation pipes arranged inside the steering gear body. Coolant absorbs heat from the internal side of the steering gear body through these pipes. This utility model uses liquid cooling, preventing moisture and dust from entering the steering gear body, thus avoiding the shortened service life of the transmission gear set due to moisture and dust. The lubricating oil is heated and stirred before addition to ensure optimal lubrication. A lubrication pump delivers the lubricating oil between the gears, reducing the friction coefficient and heat generation, thus solving the high-temperature problem at its source and protecting the gears, extending their service life.

This invention relates to a frequency identification circuit for motor driver control, belonging to the field of motor drive control technology. The frequency identification circuit compares frequency signals with corresponding duty cycles of 1% and 99% using two comparators. The first comparator circuit amplifies the output signal of the frequency identification module and inputs it to the non-inverting terminal of the comparator. The second comparator circuit directly inputs the output signal of the frequency identification module to the inverting terminal of the comparator. When the duty cycle is less than 1% or greater than 99%, the corresponding comparator outputs a low level. The signal processing circuit uses the unidirectional conductivity of a diode to perform an OR operation on the two comparison signals. If either signal goes low, the driver enable terminal is pulled low, triggering a protection mode. This invention enables rapid identification and protection against PWM signal anomalies, effectively improving the reliability of protection for motor drivers and electric servos.

The invention discloses an active damping parameter setting method and device, equipment and a medium, and relates to the technical field of motor control, and the method comprises the steps: determining a transfer function of an inverter side current feedback closed-loop control loop; the inverter side current feedback closed-loop control loop comprises a control link, a delay link, an active damping link, a filter link and a motor link; according to the transfer function, determining an upper limit expression of an active damping parameter when a control loop stability condition is satisfied; obtaining the numerical value of each target parameter in the upper limit expression of the active damping parameter; determining the upper limit value of the active damping parameter according to the upper limit expression of the active damping parameter and the numerical value of each target parameter; and selecting a numerical value within the upper limit value of the active damping parameter as a set value of the active damping parameter. According to the method, the active damping parameter setting efficiency can be improved, and the set active damping parameter is more accurate.

This invention discloses a transformer partial discharge separation algorithm based on a self-supervised network, comprising the following steps: acquiring and storing partial discharge signals of the transformer; extracting discharge waveforms using an outlier detection method; constructing a self-contrast dataset and a negative example dataset for pulse data; extracting signal spectral features using a supervised contrastive network and training the network's spectral feature extraction capability; finally, classifying the features using an iterative self-organizing clustering algorithm; setting initialization information in the iterative self-organizing clustering algorithm, clustering the feature data obtained in step five, and after classification, determining the discharge type of data in each category using expert knowledge to obtain the discharge type result; this invention, by classifying and calculating discharge signals, can effectively calculate the discharge quantity and total discharge of different discharge faults, realizing the functions of transformer operating condition monitoring and fault early warning, and effectively protecting the safety of the transformer.

The invention discloses an ultrasonic power supply load disconnection detection method, which comprises the following steps: S1, data acquisition: synchronously acquiring the output voltage and current of an ultrasonic power supply in real time; s2, calculating a phase difference beta, and calculating the phase difference between the output voltage and current of the ultrasonic power supply; and S3, detecting and judging, namely judging the phase difference within the duration time t, if the absolute value of the phase difference beta within the time t is within a set threshold range, judging that the load is disconnected and giving an alarm, otherwise, judging that the load is not disconnected and continuing to work. According to the invention, the detection condition is set to quickly and accurately detect the disconnection state of the ultrasonic power supply load, so that reminding and protection measures can be taken in time, and serious consequences such as equipment damage or personnel injury can be avoided.

The utility model discloses a mining spraying fan which comprises a water tank, a spraying assembly is fixedly installed on the top of the water tank, a protection assembly is fixedly connected to the outer side wall of the spraying assembly, and stabilizing assemblies are fixedly installed on the two sides of the water tank respectively. The protection assembly comprises a first fixing plate and a first U-shaped frame, the first fixing plate is fixedly installed at the top of the spraying assembly, the first U-shaped frame is fixedly installed on one side of the first fixing plate, an electric push rod is hinged to the inner side wall of the first U-shaped frame, and a first connecting frame is fixedly connected to the outer side wall of the spraying assembly. According to the mining spraying fan, through the arranged protection assembly, a very good protection effect can be achieved, the spraying assembly can be protected in time when the spraying fan is not used so that the spraying assembly can be prevented from being blocked by dust, the situation that normal use is affected due to dust blocking is further reduced, the whole spraying fan can be better used, and the service life of the spraying fan is prolonged. And the use experience is effectively ensured.

The present invention discloses an Internet space security testing method and system based on network device micro data, which solves the shortcomings of existing methods in terms of lack of attention to micro data of a single network device and security protection of associated devices. The method includes obtaining micro data of network devices including physical properties, connection characteristics, communication behaviors and historical usage patterns, and modeling them as tensors, determining the acquisition frequency through sampling boundaries; collecting behavioral feature data according to the acquisition frequency, and extracting and marking abnormal communication features through anomaly detection methods; calculating risk scores based on abnormal communication features, generating risk level labels, and performing real-time early warning and in-depth analysis on high-risk devices; and calculating threat perception indexes for associated devices, prioritizing and allocating protection resources to ensure that potential threats are fully protected. The present invention can achieve accurate risk assessment and dynamic protection, and improve Internet space security.

The invention discloses a vehicle safety airbag control method and device, electronic equipment and a storage medium. The method comprises the following steps: acquiring image information of a vehicle passenger, vehicle driving information, collision information and environment information; the image information, the vehicle driving information, the collision information and the environment information are analyzed through a preset safety air bag detection model, control parameters of the vehicle safety air bag are obtained, and the control parameters comprise unfolding duration information, inflation speed information and unfolding angle information of the vehicle safety air bag; and the control parameters are used for controlling the vehicle safety air bag. According to the invention, the technical problems of poor protectiveness and low intelligent level of the vehicle safety air bag when the vehicle safety air bag is controlled in the prior art are solved.

The utility model discloses a turnover skylight with damping, which belongs to the technical field of data center micro-module machine rooms and comprises a fixed support component connected with a turnover skylight component. The turnover skylight assembly is connected with a buffering assembly used for conducting speed reduction and shock buffering in the turnover skylight rotating process. The fixed supporting assembly is connected with a window opening and closing assembly for controlling the turnover skylight to be opened and closed. By means of the mode, the buffering assembly can play a role in decelerating the turnover skylight assembly, the situation that a skylight swings back and forth when falling down is avoided, and skylight glass is prevented from being broken due to back-and-forth swinging. The turnover angle of the skylight can be adjusted at will through the push rod device, and attractiveness consistency is improved; and through the smoke alarm, the electric push rod and the electromagnetic lock device, the window can be opened at the first time when a fire occurs, so that fire-fighting gas quickly reaches the closed channel, and the machine room is protected in time.

The invention discloses a wall temperature monitoring method for a gasifier furnace wall, and relates to the field of wall temperature monitoring. The method obtains a laser emission signal; emits a variable-frequency pulse pump light and a fixed-frequency continuous detection light through the laser emission signal; and injects the pulse pump light and the fixed-frequency continuous detection light into a high-temperature optical cable laid on the furnace wall of the gasifier through a first optical fiber and a second optical fiber respectively; adjusts the optical frequency of the pulse pump light, and when the frequency difference between the pulse pump light and the continuous detection light falls into a first preset frequency shift range, obtains the optical power of the pulse pump light and the continuous detection light, and obtains the frequency shift of the pulse pump light and the continuous detection light through the optical power; obtains the temperature information at each position on the high-temperature optical cable according to the frequency shift; and solves the technical problems that the current thermocouple cannot cover the entire surface furnace wall and thus cannot fully measure the furnace wall temperature, the cable temperature measurement cannot be accurately positioned, and the infrared thermal imager has high requirements for on-site installation, and there may be blind spots in monitoring the gasifier outer wall temperature.

The utility model belongs to the technical field of body position pads, and particularly relates to a deep venous thrombosis patient interventional postoperative lower limb body position pad which comprises a pad body, the pad body is provided with a catheter avoiding groove used for avoiding a thrombolysis catheter, a detection tube collision piece is arranged in the catheter avoiding groove, the detection tube collision piece comprises a touch detection rod, a supporting seat and a pressure gauge, and the pressure gauge is arranged on the supporting seat. The bottom end of the touch detection rod is in threaded connection with a stud, the stud is in sliding connection with the supporting seat, and the top end face of the touch detection rod is opposite to the thrombolysis catheter; the position of the lower limb is fixed through the fixing belt, the thrombolysis catheter is located in the catheter avoiding groove, along with the use of the body position pad, the thrombolysis catheter touches the touch detection rod due to the phenomenon that the position of the thrombolysis catheter is changed, the touch detection rod compresses the spring in the supporting seat, detection is conducted through the pressure gauge, and at the moment, the result is reflected to medical staff; therefore, medical staff can treat a deep vein thrombosis patient in time, the body position is supported, and the patient supported by the body position pad can be protected in time.

The utility model provides a battery cell module and energy storage equipment. The battery cell module comprises a battery cell group, a supporting piece and an acquisition plate, the battery cell group comprises a plurality of battery cells; the supporting piece is arranged on one side of the battery cell group, the bottom end of the supporting piece is provided with an extension part, and the extension part extends to the lower part of the battery cell group. The collecting plate is arranged on the supporting piece and electrically connected with the battery cell, at least part of the collecting plate is arranged on the extending part, and a water inlet detection module is integrated on the part, located on the extending part, of the collecting plate and is configured to send an electric signal when making contact with water liquid. The water inlet detection module is integrated on the collection plate, the water inlet detection module can be installed while the collection plate is installed, the installation efficiency is improved, the water inlet detection module is arranged on the extension part and located below the battery cell group, the water inlet detection module is supported by the extension part, and the water inlet detection module can be conveniently installed. And the water inlet detection module is positioned below the battery cell group, so that the water inlet condition below the battery cell group can be detected in time, and the effects of prompt and protection in time are achieved.

The utility model discloses a new energy controller motor temperature sampling circuit, which is characterized by comprising a power supply filter circuit, a temperature signal sampling circuit, a drive control module and a signal conditioning and amplifying module, the power supply filter circuit is connected with the driving control module, the temperature sampling circuit is connected with the driving control module, and the driving control module is connected with the signal conditioning and amplifying module. The motor temperature sampling accuracy is improved, the motor temperature sampling is not easily influenced by the temperature, the motor temperature sampling reliability is effectively improved, and the motor is protected more timely.

The present invention belongs to the field of electrical technology and power electronics technology, and discloses a high-power special power supply fault interlocking protection device based on PLC to solve the fault interlocking protection problem of the prior art power supply. The device includes a main controller and a PLC, a fault input point of the PLC is connected with a fault receiving circuit, a fault reset circuit is connected with a reset output point of the PLC, the other end of the fault receiving circuit is connected with an external fault transmission optical fiber, a power interface of the fault receiving circuit is connected with a voltage conversion circuit, the voltage conversion circuit is connected with a power indication circuit, the power indication circuit is connected with a 24V power supply, a fault output point of the PLC is connected with a fault sending circuit, and a fault holding circuit is connected between the fault receiving circuit and the fault sending circuit. The present invention uses optical fiber to transmit fault information between single power supplies in the form of light, isolates electromagnetic interference between power supplies, and further improves the reliability of the power supply system.

The invention belongs to the field of energy consumption device valve control system testing, and discloses a black module detection method of an energy consumption device and related equipment, and the black module of a to-be-detected power module is judged by collecting the module fault information of the to-be-detected power module and the module fault information of an adjacent power module in real time; if it is judged that the module is a black module, a protection instruction is output to achieve locking of the energy consumption device; when the collected module fault information is an uplink comprehensive fault, the two modules can be accurately judged to be black modules; and when the uplink comprehensive fault occurs in the to-be-detected module and the cross communication fault occurs in the adjacent module, the bypass control unit of the to-be-detected module is controlled by sending a bypass instruction to the energy consumption module control unit of the adjacent module, and if a feedback bypass is unavailable, the to-be-detected module is judged to be a black module. By the adoption of the method, accurate judgment of the black module is achieved, bypass control measures can be taken in time when faults are found, and the safety stability and the protection response speed of a valve control system are effectively improved.

The embodiment of the invention relates to the field of electric power systems, and discloses a protection method, system and equipment for an electric power conversion and interconnection system, and the protection method comprises the steps: dividing the electric power conversion and interconnection system into different protection types according to an area where a protection signal is located; different protection strategies are configured for the protection types respectively; the protection strategy is used for controlling a corresponding protection switch to trip; in response to a protection signal for the power conversion and interconnection system, determining a protection type corresponding to the protection signal; and according to the protection type corresponding to the protection signal, determining a protection strategy correspondingly executed by the protection type, and according to the protection strategy, controlling a corresponding protection switch to trip. According to the protection method disclosed by the invention, the problem of over-protection or untimely protection is solved, and at least the technical effects of graded protection, adoption of corresponding protection strategies after faults in different areas inside, and immediate protection and accurate protection can be achieved.

The emergency protection device comprises a heating supporting shell and a smelting chamber arranged at the upper end of the heating supporting shell, supporting frames are arranged on the two corresponding sides of the heating supporting shell, the supporting frames are fixedly connected with the heating supporting shell through rotating connecting columns, and the rotating connecting columns are fixedly connected with the heating supporting shell. The rotary connecting column is rotationally connected with the supporting frame, a plurality of meshing supporting teeth are fixedly connected to the outer side of the rotary connecting column, the supporting frame is located between the two sets of meshing supporting teeth, and the two sets of meshing supporting teeth are connected with a first limiting plate and a second limiting plate in a meshing mode correspondingly; a telescopic motor is arranged on one side of the second limiting plate, the telescopic motor is fixedly connected with the supporting frame, and the first limiting plate is fixedly connected with the telescopic motor; according to the utility model, materials in the device and nearby workers can be protected in time, so that emergency protection can be carried out when the device breaks down.

This application relates to the field of device control, providing a control method for a mobile device, a mobile device, and a storage medium. The mobile device includes a body, a leg mechanism connected to the body, and a joint motor driving the leg mechanism. The method includes: detecting whether the mobile device is in a failed-to-stand state, wherein the failed-to-stand state is a state where the mobile device, after tipping over, fails to return to a standing position after performing a standing recovery action; if the mobile device is in the failed-to-stand state, controlling the mobile device to enter a safety protection mode, the safety protection mode ensuring that at least the leg mechanism is in a free state. This application aims to trigger a safety protection mode when the mobile device fails to stand, thereby improving the movement stability and mechanical reliability of the mobile device.

The invention relates to the technical field of generator excitation simulation, and discloses an RT-LAB-based generator excitation small signal semi-physical simulation method and detection system, and the simulation method comprises the following steps: building a single machine infinite bus simulation system and a generator excitation system model in RT-LAB software; a semi-physical simulation platform loaded with RT-LAB software is electrically connected with the AVR excitation regulator through a conversion card; based on the generator excitation system model established in RT-LAB software, determining the optimal working parameters of the PSS of the AVR excitation regulator; and based on the optimal working parameters of the PSS of the AVR excitation regulator, adjusting the control parameters of the single-machine infinite-bus simulation system and the generator excitation system model so as to evaluate the response performance of the AVR to various generator faults. According to the method, a small signal model is built through RT-LAB, and the test accuracy is ensured by utilizing the real-time capability of the step length of 15 microseconds.

The treadmill comprises a base and a runway arranged on the base, the treadmill further comprises a stand column arranged on the base, the stand column is located in front of the runway, a containing bin is arranged on the side, away from the runway, of the stand column, a safety belt and a winding structure rotationally arranged on the stand column are arranged in the containing bin, and one end of the safety belt is connected with the winding structure; a safety belt outlet is formed in the side, facing the runway, of the stand column, the safety belt outlet is communicated with the containing bin, and at least part of the safety belt extends out of the safety belt outlet. The utility model provides a treadmill to solve the technical problems that a safety belt of an existing treadmill causes the movement range of a user to be too small, the user feels uncomfortable easily, and the user is prevented from using a whole treadmill runway.

The invention relates to the field of single-soldier knapsacks, in particular to an expandable single-soldier fire support knapsack capable of preventing bomb of an unmanned aerial vehicle. According to the technical scheme, the unfoldable single-soldier fire support backpack capable of preventing the unmanned aerial vehicle from bomb comprises a backpack body, a fixing plate, a mounting bracket, a first spring hinge, a top plate, a micro motor, a rotating shaft and a fixing block; a first spring hinge and a top plate can be mounted and fixed by arranging the mounting bracket, the top plate can be mounted and fixed by arranging the first spring hinge, a defense surface above the backpack body can be formed by arranging the top plate, and a fixing block can be driven to rotate through a rotating shaft by arranging a micro motor; therefore, the fixing block can rotate and be separated from the fixing groove, the top plate is driven by the first spring hinge, the top plate is automatically unfolded, manual operation is not needed, the structure is simple, and damage is not prone to occurring.

The invention discloses a driving circuit with silicon carbide modules connected in parallel. The driving circuit comprises a microcontroller MCU used for outputting a PWM control signal; the first driving chip and the second driving chip are respectively used for receiving the same path of PWM signals output by the MCU; the first isolation driving power supply and the second isolation driving power supply respectively supply power to the first driving chip and the second driving chip; the first silicon carbide module and the second silicon carbide module are respectively connected with the first driving chip and the second driving chip; a first driving resistor is arranged between the first driving chip and the first silicon carbide module, and a second driving resistor is arranged between the second driving chip and the second silicon carbide module. The first driving resistor and the second driving resistor are used for adjusting the switching speed so as to achieve synchronous switching-on and switching-off. According to the invention, dynamic current sharing of the two silicon carbide modules is ensured.