12 results about "Dc motor control" patented technology

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.

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 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.

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.

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.

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.

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.

This invention relates to the field of DC motor control technology, specifically to a smooth commutation control system for a DC motor with a matched multi-point rolling brush structure. It includes a data acquisition module, an observer module, a prediction module, a control decision module, and a motor drive module. The system acquires current, speed, and mechanical vibration feedback data, extracts high-frequency jumping characteristics matching the rolling frequency, calculates the contact degradation entropy, and calculates its approximation rate to the failure boundary. When the contact degradation entropy is below a dangerous threshold, a first control command is output to maintain the current torque output; when it is above or equal to the dangerous threshold, a second control command is output, combined with the approximation rate, to inject damping current, thereby reducing the speed and rebuilding mechanical contact stability, reducing the risk of continuous sparking, torque loss, and drill bit jamming.