32 results about "Dc motor control" patented technology

The utility model relates to the technical field of motor speed regulation, in particular to a direct current motor speed regulation circuit. The speed regulation circuit comprises an input connector CON1 used for accessing a DC input voltage; the output connector CON2 is used for connecting a direct current motor; the step-down chip ME3148 is used for converting the direct-current input voltage into adjustable output voltage, and the step-down chip comprises a VI N pin 8, an SW pin 2, an FB pin 4, a VC pin 7, a CS pin 5 and a GND pin 3. The direct-current motor speed regulation control circuit is simple in structure, can realize wide-range and high-precision speed regulation control only by adjusting a single potentiometer, has the characteristics of low cost and high reliability while ensuring the speed regulation performance, and is suitable for direct-current motor control scenes with higher requirements on speed regulation range and precision.

This invention discloses a control method, device, and system for suppressing current ripple in a coreless brushed DC motor, belonging to the field of DC motor control. The method includes: using an H-bridge Buck converter as the driving topology to provide smooth voltage; designing a state feedback controller based on its state-space model to adjust the dynamic current response; simultaneously designing nonlinear disturbance observers to compensate for matched disturbances in the inductor branch and unmatched disturbances and their derivatives in the capacitor branch; innovatively designing a multi-channel quasi-resonant proportional-integral resonant observer to observe and compensate for the unmatched periodic disturbances caused by motor component commutation, with higher precision; and finally synthesizing a composite control law to drive the motor. The device and system correspondingly implement the above method. Compared with higher-order disturbance observers, the multi-channel quasi-resonant proportional-integral resonant observer proposed in this invention significantly improves the compensation capability for unmatched periodic disturbances, effectively suppressing current ripple in the coreless motor and improving torque stability.

A method of operating an inverter for a brushless direct current (BLDC) motor includes: driving a high-side switch to conduct current between a DC high node and an output node connected to the BLDC motor and for a conductive period in each of a plurality of operating periods; driving a low-side switch to a conductive state after a dead-time after the conductive period and to conduct current between the output node and a DC low node; receiving a duty cycle command; determining an adjusted duty cycle representing the conductive period as a portion of an operating period; determining a duty cycle difference signal as a difference between an initial duty cycle based on the duty cycle command, and the adjusted duty cycle; and determining a feedback duty offset signal based on the duty cycle difference signal. The adjusted duty cycle is computed based on the feedback duty offset signal.

We provide a gaming machine featuring DC motor control. [Solution] The system comprises a detection means for detecting an index, a DC motor control means for controlling a DC motor, and a game progress control means capable of periodically transmitting rotation instructions to the DC motor control means to instruct a predetermined amount of rotation. The DC motor control means can control the rotation of the DC motor by continuously receiving rotation instructions periodically, and can control the stopping of the DC motor when the periodic reception of rotation instructions ends. The game progress control means is a means for setting a first initial position based on the detection result of the detection means when the rotating body is rotating at a first speed, and for setting a second initial position based on the detection result of the detection means when the rotating body is rotating at a second speed.

The invention discloses a novel auxiliary control system of a gas water heater. The novel auxiliary control system comprises a direct current motor and an auxiliary control panel, the auxiliary control board comprises an AC-to-DC unit, a DC motor control unit and a protection switch signal output unit. The AC-to-DC unit is used for converting an input 220V AC power supply into DC and supplying the DC to the DC motor control unit; the direct current motor control unit is used for controlling rotation of the direct current motor and monitoring the running state of the direct current motor, and the MCU drives the direct current motor in a constant-current mode and conducts high-dynamic-response motor rotating speed closed-loop control. The auxiliary control system of the gas water heater is formed only by replacing an alternating-current motor with a direct-current fan, cancelling a wind pressure switch and assembling an auxiliary control panel under the condition that the whole structure and the main control system of the existing alternating-current gas water heater are not changed, so that the fault rate of the gas water heater is reduced, the performance is more stable, and energy is saved; and meanwhile, the wind pressure resistance of the fan is enhanced.

The utility model discloses a novel control system for an AC voltage-stabilized power supply. The novel control system comprises a master control MCU module, a DC motor control circuit, a signal measurement circuit, a power conversion circuit, a man-machine interaction module, a communication module, a storage module and a protection module. The master control MCU module is connected with the signal measuring circuit, the man-machine interaction module, the communication module and the storage module through an SPI bus. The direct current motor control circuit adopts a full-bridge topological structure, is connected with the main control MCU module through an optical coupling isolator, and receives a PWM signal to control the positive and negative rotation and rapid braking of a motor; the power conversion circuit adopts a two-stage voltage reduction structure, the voltage of the first stage is reduced to 8V from + 12V, and the output of the second stage is 5V and 3.3 V. According to the utility model, a full-bridge topological structure and a + 12V single power supply are adopted for power supply, flexible forward rotation, reverse rotation and rapid braking control are realized, and the dynamic response capability of the system is improved.

The utility model provides an inertial energy storage range extending system, which comprises a brushless direct current motor, a brushless direct current motor and a controller, the brushless direct current motor controller is in control connection with the brushless direct current motor; a rotor of the three-phase brushless generator is connected with a hub of a driven wheel of the vehicle, and the rotating mechanical energy of the driven wheel is converted into electric energy; the battery module comprises a battery pack A and a battery pack B, and the battery pack A and the battery pack B are alternately and electrically connected with the brushless direct current motor controller and the three-phase brushless generator, supply power to the brushless direct current motor controller and store electric energy converted by the three-phase brushless generator; and the PC linked switch is electrically connected between the battery module and the brushless direct current motor controller and between the battery module and the three-phase brushless generator, and is used for realizing alternate electrical connection between the battery pack A and the brushless direct current motor controller and between the battery pack B and the three-phase brushless generator. According to the inertial energy storage range extending system, mechanical energy of the driven wheel of the vehicle is converted into electric energy to be recycled, and the endurance mileage of the vehicle is increased.

The utility model belongs to hot rolled steel pipe processing technical field, and disclose a kind of production and processing equipment of hot rolled steel pipe, including table board, the upper surface of table board is fixed with drive pipe symmetrically, and the upside of drive pipe is equipped with clamping arc rod, the side of table board is equipped with support, and the side of support is equipped with cutting disc, two-way screw rod is rotatably equipped in drive pipe, the side of drive pipe is fixed with servo motor, and the output of servo motor is through drive pipe and is fixedly connected with two-way screw rod, the outer surface of two-way screw rod is symmetrically screwed and is equipped with moving block, the both sides of moving block are fixedly equipped with sleeve block, and the upper surface of sleeve block is connected with vertical plate by bolt cooperation. Through the above scheme, through servo motor and two-way screw rod cooperation clamping arc rod, realize steel pipe fast accurate clamping, and promote cutting accuracy;Electric push rod combines DC motor control cutting disc, ensure cutting efficient flexible;Guide frame and positioning rod guarantee support movement stable, improve equipment processing quality and reliability in all directions.

This invention discloses an output reachable set control method for a DC motor switching singular multi-agent system, belonging to the field of DC motor control. The method includes constructing a DC motor-switching singular model; monitoring the motor current and speed in the execution system, constructing a pulse reset map to capture transient current jumps; after a jump occurs, providing voltage feedback compensation through the switching singular model; ensuring the system state is within a preset bounded set, further limiting the current and speed to within safe thresholds, protecting the normal operation of the motor. The problem solved is to provide feedback compensation for feedback loop delays and pulse effects generated by mode switching, while limiting the current and speed within a reachable set. This method is used for motor control and voltage compensation.

The invention provides a hidden attack method and system of a DC control system based on a PI control technology, and belongs to the field of signal processing. The problem that for a DC motor control system with parameter uncertainty, an existing hidden attack method cannot accurately evaluate safety hazards of the DC motor control system and is difficult to provide effective guidance for construction of network safety protection systems of the DC motor control system and related application fields is solved. According to the method, a system model is constructed, a hidden attack strategy with robustness is designed, an input end attack signal is designed according to an attack target, an output end attack signal is designed according to the hidden attack strategy, and robust hidden attack of the DC motor control system is achieved through the input end attack signal and the output end attack signal. According to the robust hidden attack method, the influence of system uncertainty on hidden attack performance is considered, and compared with an existing hidden attack method, the robust hidden attack method can be suitable for an engineering control system with uncertainty.

The invention discloses a control method for a brushless direct current motor of an industrial sewing machine. The control method comprises the following steps: step 1, designing the structure of the brushless direct current motor of the industrial sewing machine; 2, setting a brushless direct current motor rotating speed control method based on the whale algorithm optimization PID; 3, designing software and hardware of a brushless direct current motor control system; according to the industrial sewing machine numerical control system parameter design method, by designing the structure of the industrial sewing machine brushless direct current motor, rotating speed control, control system software and hardware and the numerical control system parameters, the control performance is greatly improved, and meanwhile the purposes of low carbon and energy saving are achieved. Meanwhile, the stability, rapidity and accuracy of the system are improved, and needle stopping is rapid and accurate.

This invention relates to a hybrid energy storage railway power regulator technology under a virtual motor control system. It introduces a virtual inertial element into the current compensation strategy of the railway power regulator and employs virtual DC motor control in the hybrid energy storage system. Power quality is managed through the railway power regulator, and regenerative braking energy is recovered and utilized by connecting to the hybrid energy storage device. A segmented adaptive power allocation strategy based on the filtering time constant of the energy storage unit's state of charge and a dynamic adjustment strategy for limited power within the hybrid energy storage system are adopted. By adjusting the filtering time constant, "shallow charging and discharging" of the battery is ensured, with the supercapacitor handling the remaining power after the battery bears part of the load. A virtual inertial element is introduced to provide inertial support compared to the traditional control of railway power regulators, and virtual DC motor control is used for the hybrid energy storage system. This results in frequency stability under load fluctuations, as well as better dynamic performance and anti-interference capabilities.

The present application relates to the technical field of DC motor control, in particular to a DC motor stable commutation control system matching a multi-point rolling brush structure; comprising a data acquisition module, an observer module, a prediction module, a control decision module and a motor drive module; current, speed and mechanical vibration feedback data are collected, high-frequency jumping characteristics matched with rolling frequency are extracted, contact degradation entropy is solved, and its approximation rate to the failure boundary is calculated; when the contact degradation entropy is lower than the dangerous threshold, the first control instruction for maintaining the current torque output is output, and when it is higher than or equal to the dangerous threshold, the second control instruction for injecting damping current is output in combination with the approximation rate, so as to reduce the speed and rebuild the mechanical contact stability, reduce the risk of continuous spark, torque loss and drill tool jam.

The invention relates to the technical field of permanent magnet brushless direct current motor control, in particular to an inertia flywheel system based on a permanent magnet brushless electromagnetic coupler and a control method thereof, and the system comprises an energy storage flywheel, the permanent magnet brushless electromagnetic coupler, a synchronous phase modifier, a coupler current conversion controller, an LC filter and a three-phase transformer; a flywheel rotor of the energy storage flywheel is coaxially connected with an inner rotor of the electromagnetic coupler, and an outer rotor of the electromagnetic coupler is coaxially connected with a rotor of the synchronous phase modifier; the rotor speed of the synchronous phase modifier is maintained at a power frequency speed, and the stator winding of the synchronous phase modifier is directly connected to a power grid; the coupler variable-current controller is used for controlling the electromagnetic coupler; the LC filter comprises a first LC filter and a second LC filter, and is used for filtering high-frequency clutters and improving the quality of electric energy. According to the method, the safety problem in the operation process of the inertia flywheel system is solved, and a more reliable method is provided for operation control of the inertia flywheel system.

1. The name of the design product: rechargeable lithium ion battery pack. 2. The use of the design product: power supply for DC motor and DC motor control system. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view.

This application belongs to the field of intelligent control and mechatronics technology, specifically a DC motor control system, a window opening system, and a control method. Specifically, the DC motor control system includes a main controller, sub-control units, and a two-wire transmission unit. The main controller superimposes a polarity switching control signal onto the power supply current, and the sub-control units parse this signal or respond to local commands to drive the motor in forward and reverse rotation. The system provided in this application uses only two wires (A / B) for power supply and communication, and is suitable for window opening scenarios with both centralized control and local manual dual-mode operation, as well as other DC motor control scenarios with similar application needs.

This invention discloses a brushless DC motor control system based on a three-stage filtered power supply, comprising: a three-stage filtered power supply module, which includes a rectifier circuit unit, a counter-current power supply circuit unit, and a three-stage filtered circuit unit. The first terminal of the rectifier circuit unit is connected to the AC input power supply, the first terminal of the counter-current power supply circuit unit is connected to the second terminal of the rectifier circuit unit, and the first terminal of the three-stage filtered circuit unit is connected to the second terminal of the counter-current power supply circuit unit; an IGBT control module, whose first terminal is connected to the second terminal of the counter-current power supply circuit unit and whose second terminal is connected to the motor; and a CPU control module, whose first terminal is connected to the second terminal of the three-stage filtered circuit unit and whose second terminal is connected to the third terminal of the IGBT control module. This satisfies the low-noise and high-stability control requirements of the brushless DC motor.

We provide a gaming machine featuring DC motor control. [Solution] The game progress control means comprises a detection means for detecting an index, a DC motor control means, and a game progress control means capable of transmitting a rotation control signal to the DC motor control means that instructs a predetermined amount of rotation by changing from a first state to a second state. The DC motor control means can control the rotation of the DC motor by continuously receiving the change from the first state to the second state periodically, and can control the stopping of the DC motor when the periodic reception of the change from the first state to the second state ends. The game progress control means is a means for setting information regarding the position of a rotating body based on the detection means obtaining a predetermined detection result, and sets a first initial position if the rotation control signal is in the first state when the detection means obtains a predetermined detection result, and sets a second initial position if the rotation control signal is in the second state when the detection means obtains a predetermined detection result.

The application provides a kind of consumable control device, slave robot and flexible catheter head end bending degree control method, including control unit and execution unit, execution unit includes DC motor, slider and sensor;DC motor and sensor are electrically connected with control unit respectively;The driving end of slider is used to connect DC motor, the execution end of slider is used to connect control bending wire, when DC motor controls the bending of the distal end of control bending wire by driving slider linear sliding, the execution end bears the tension from control bending wire;Sensor is correspondingly arranged with execution end, and is used to output sensing information, sensing information can evaluate the movement of execution end relative to driving end when slider is bent and deformed due to tension;Wherein, control unit can adjust the operating parameter of DC motor according to the target value and sensing information input, to make the bending degree of the distal end of control bending wire and target value adapt to each other.The application improves the control precision of the bending degree of flexible catheter head end.

The invention relates to the technical field of permanent magnet brushless direct current motor control, in particular to a horizontal inertia flywheel system with a permanent magnet brushless auxiliary motor and a starting method, the flywheel system comprises an energy storage flywheel, an auxiliary motor, an electromagnetic coupler, a synchronous phase modifier, a direct current bus, a rectifier, a first converter and a second converter; the starting method comprises the following steps: disconnecting the second converter from an outer rotor of the electromagnetic coupler, and short-circuiting an outer rotor winding of the electromagnetic coupler; starting a rectifier to supply power to the direct-current bus voltage; the first converter implements subsection control according to rotation speed feedback of the auxiliary motor; when the rotor rotating speed of the synchronous phase modifier reaches the synchronous rotating speed and meets the grid connection condition, the stator side winding is connected into the power grid, and the self-starting process of the whole system is completed. According to the invention, the electrical characteristics of the electromagnetic coupler are fully utilized, the system self-starting is realized by optimizing the control strategy of the auxiliary motor, and the feasibility and reliability are good.

This invention relates to the field of industrial control technology, and discloses a PCIE integrated control method, system, device, and medium for a dual-head wire bonder. The method includes the following steps: During operation, when controlling multiple stepper motors, the host computer writes a first instruction to the BRAM corresponding to the PL pin of the ZYNQ via PCIE, and notifies the PS core inside the ZYNQ to receive the first instruction; after receiving the first instruction from the BRAM, the PS core inside the ZYNQ reads and parses the instruction; after parsing the first instruction, the PS core outputs a first instruction to control the movement of the corresponding stepper motor. This invention achieves a transmission rate of up to 4GB / s and integrates 20-axis stepper motor control, 16-axis DC motor control, 72-bit extended input / output, and 4 coded signal wheel inputs.

1. The name of the design product: rechargeable lithium ion battery pack. 2. The use of the design product: power supply for DC motor and DC motor control system. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view.

This invention relates to the field of brushless DC motor control technology, and discloses a method for reducing the temperature of power devices in a brushless DC controller. The method includes: real-time acquisition of the power device temperature; when the temperature is within a first preset range, maintaining the torque current component setpoint and switching to a discontinuous pulse width modulation (PWM) mode; when the temperature enters a second preset range, predicting the turn-off phase using a square wave mode based on a Hall signal, and forcibly adjusting the clamping strategy of the PWM mode to ensure the inactive phase aligns with the turn-off phase; switching to a square wave control mode when the Hall signal changes, and calculating the bus current setpoint using a torque balance principle to maintain constant torque. This invention can significantly reduce switching losses by progressively changing the switching modulation strategy without reducing the output current, thereby effectively reducing the temperature of the power devices and ensuring the high-temperature power performance of the vehicle.

The embodiment of the application provides a kind of DC motor speed regulator's operation monitoring control method, device, comprising: obtaining the rotor temperature observation value of the temperature sensor of DC motor;Obtain ambient temperature data;According to the rotor temperature data and ambient temperature data, calculate the temperature sensing coefficient;The error amount parameter of DC motor is adjusted by the temperature sensing coefficient, and the adjustment error amount parameter is obtained;According to the adjustment error amount parameter and system preset input, fuzzy convolution inference is carried out, and the output internal control amount is obtained;The operation of DC motor is controlled by the internal control amount, gradually extract more complex features, reduce the parameter quantity of fuzzy inference model, improve the calculation efficiency, and reduce the risk of overfitting through weight parameter sharing, effectively reduce the uncertainty and nonlinearity of brushless DC motor control system, the controller in the embodiment of the application has better robustness.

We provide a gaming machine featuring DC motor control. [Solution] The game progress control means is capable of transmitting a rotation control signal that instructs a predetermined amount of rotation by changing from a first state to a second state, and stop information that instructs stopping, to a DC motor control means; and a DC motor control means that controls the rotation of the DC motor by periodically receiving the change from the first state to the second state, controls the stopping of the DC motor when the periodic reception of the change from the first state to the second state ends, and controls the stopping of the DC motor based on the reception of stop information, wherein the game progress control means is a means that does not transmit the change from the first state to the second state to the DC motor control means for a predetermined period after transmitting stop information to the DC motor control means, and is a means that can transmit the change from the first state to the second state while transmitting stop information.

The utility model discloses a closed-loop DC motor PWM control rotating speed measuring device, which relates to the technical field of rotating speed measuring devices and comprises a microcontroller module and a DC motor module, and a PWM power amplification circuit module is arranged between the microcontroller module and the DC motor module. The utility model aims to solve the problems that a traditional direct current motor control method mainly depends on an analog circuit, although the control of a motor can be realized to a certain extent, certain limitations exist in the aspects of stability, accuracy and flexibility, and the like. According to the closed-loop direct current motor PWM control rotating speed measuring device, the mode that a microcontroller transmits PWM signals and a Hall sensor collects signals is adopted, real-time collection, display and control functions of the rotating speed of the direct current motor can be achieved, and compared with a traditional analog circuit, the closed-loop direct current motor PWM control rotating speed measuring device is more accurate in measurement and more stable in control effect.

The invention provides an interlocking brushless motor logic decoding circuit with an adjustable dead zone, and belongs to the technical field of motor control. Signals are preprocessed through the input unit, the preprocessed signals are input into the logic decoding unit for logic decoding to achieve output of six-path signals of three pairs of bridge arms, the output signals pass through the interlocking dead zone configuration unit, the interlocking dead zone configuration unit conducts bridge arm interlocking or dead zone control judgment on special signals, and conventional signals directly pass through the interlocking dead zone configuration unit. Finally, three pairs of bridge arm six-path control signals without bridge arm straight-through and with independent dead zone adjustability are output, and the functions of interference resistance, logic decoding, bridge arm interlocking and independent dead zone adjustability are achieved. The problems of signal distortion, logic processing complexity, bridge arm direct connection, fixed dead zone value and mismatching of a motor control system caused by adding dead zones to all waveforms due to the fact that a current brushless direct current motor is controlled by a PWM and FR signal control circuit can be solved.

The application discloses a kind of coordination control systems for vehicle rollover automatic righting mechanism, including: sensor module, drive module, infrared module, sensor module includes force sensor, laser ranging sensor, FPGA signal processor, first CAN communication circuit, drive module includes IN logic input circuit, DC motor control circuit, MCU control circuit and second CAN communication circuit, infrared module includes NEC communication circuit and infrared emitter.NEC communication circuit is used to receive the infrared signal sent by infrared emitter, and its corresponding key code value is decoded into corresponding digital signal;IN logic input circuit is connected with MCU control circuit IO output port, IO port high-low level controls IN logic circuit level, so that the coordinated action of motor output port in drive module drives four electric push rods.

The invention discloses an anti-disturbance control method for a paddy field robot driven by double hub motors. The anti-disturbance control method comprises the following steps: S1, constructing a paddy field robot chassis control system; s2, establishing a brushless direct current motor control model of the hub motor, wherein the model comprises a voltage equation, an electromagnetic torque equation and a mechanical motion equation; s3, designing an anti-disturbance control method based on sliding mode control and a disturbance observer; s4, designing a cross coupling control method, compensating the rotating speed difference of left and right wheels in real time, and ensuring synchronous driving of double motors; and S5, establishing a double-hub differential-steering curvature model, calculating independent expected linear speeds of left and right wheels according to a target steering angle or an expected angular speed output by a path tracking algorithm, and further calculating through a kinematic model to obtain a target rotating speed of each hub motor. Torque fluctuation, wheel slipping and track deviation caused by the muddy ground can be effectively restrained, and the trafficability, driving stability and operation precision of the robot in the paddy field environment are remarkably improved.

Technical solutions are described for controlling a brushed direct current (DC) motor, including: determining, based on one of a motor current command or an actual motor current, a brush voltage drop across a set of brushes of the brushed DC motor; determining, based on the brush voltage drop, at least one of: a first voltage limit based on a supply current value not exceeding a supply current limit, and a second voltage limit based on a controller supply voltage value not exceeding a maximum available voltage; determining a final voltage limit based on the at least one of the first voltage limit and the second voltage limit; determining a final voltage command based on an initial voltage command and not to exceed the final voltage limit; and applying a DC voltage to the brushed DC motor based on the final voltage command.