8results about How to "Achieve smooth switching" patented technology

The application discloses a kind of walking tape deviation correction method, device, equipment and computer readable storage medium, applied to industrial equipment field, the polar piece position data sent by the first sensor working in composite critical region is mirrored and copied and flips to obtain mirror polar piece position data;The diaphragm position data sent by the second sensor working in diaphragm critical region is mirrored and copied and flips to obtain mirror diaphragm position data;In switching region, using the mirror flipping data copied and polar piece position data or diaphragm position data in real time transmission are weighted average to calculate feedback value, to realize the smooth switching of sensor.It avoids the problem that the feedback value of the sensor data calculated in the process of switching the sensor in the prior art may change suddenly, resulting in excessive swing of the deviation corrector and poor deviation correction effect.

The application discloses a control method, device and computer program product of an intelligent mobile terminal, wherein the method comprises: driving a first servo motor through a PID controller of the first servo motor to control the rotating speed and direction of a wheel; driving a second servo motor through a PID controller of the second servo motor to adjust the position of a carrying platform in a horizontal direction; and driving a third servo motor through a PID controller of the third servo motor to adjust the horizontal balance of the carrying platform; wherein the PID controllers of a plurality of first servo motors are connected in series to form a series PID control structure; the PID controller of the second servo motor is connected in parallel, and is connected in parallel with the PID controller of the third servo motor to form a parallel PID control structure. The application significantly improves the accurate controllability of a plurality of servo systems of the intelligent mobile terminal by innovatively applying a series-parallel PID control mode, and ensures the stable performance, maneuverability, flexibility and environmental adaptability of the intelligent mobile terminal under various motion modes.

The invention relates to a vehicle control method, a controller, a system, a related device and a vehicle, and the method comprises the step of carrying out rotating speed control or torque control on a motor of the vehicle based on driving information of the vehicle. According to the method, the appropriate control mode needed by the vehicle is judged according to the driving information of the vehicle, smooth switching between the rotating speed control mode and the torque control mode is achieved, complex driving environment and working condition changes can be dealt with, and stable control over the whole vehicle is facilitated.

The application discloses a carousel and rotating shaft working mode switching control circuit and switching control method, which is characterized in that after the carousel and the rotating shaft are controlled to be in a mechanical zero position, a brake holding control circuit and a carousel rotating shaft signal switching circuit are used to make a multi-component injection molding machine enter a carousel working mode or a rotating shaft working mode based on the opening and closing states of a mode selection switch; when the mode selection switch is in an open state, the brake holding control circuit is used to control a rotating shaft servo motor brake to be in a power-on state, and the carousel rotating shaft signal switching circuit is used to control a carousel 0-degree detection electric eye and a carousel 180-degree detection electric eye in the signal switching module to be in an output state; when the mode selection switch is in a closed state, the brake holding control circuit is used to control a power module to stop outputting power to the rotating shaft servo motor brake, and the carousel rotating shaft signal switching circuit is used to control a rotating shaft servo motor driver to be in an output state, thereby realizing smooth switching of the carousel and the rotating shaft in two different working modes.

This invention discloses a control method for improving the transient stability of doubly-fed induction generator (DFIG) wind turbine systems connected to the grid, belonging to the fields of wind power grid connection technology and power system stability control technology. First, a reduced-order model of the system is established to accurately reflect the dynamic behavior during low-voltage ride-through. Based on this model, the attraction domain boundary and maximum power angle constraint are obtained, and then adaptive current reference control is proposed: the rotor d-axis current limit is calculated based on the maximum power angle constraint and the grid voltage, and compared with the original reference generated by maximum power point tracking. The smaller value is taken as the command to achieve adaptive limiting of the rotor current. Simultaneously, transient pitch collaborative control is proposed: the rotor speed is monitored in real time, and when the speed exceeds the safe upper limit, a transient load reduction power command is calculated and the pitch angle is rapidly increased to reduce mechanical torque. This invention can significantly enhance the fault ride-through capability and grid-connected operation reliability of DFIG wind turbines during transient processes such as voltage dips.

The application relates to the computer technical field, and provides a mode switching method and related device, which are used for improving mode switching efficiency, the method comprises the following steps: in response to a mode configuration operation of a target object on a target authorization mode in a target application program, a mode configuration operation interface containing an initial authorization range and an authorized object adding component is presented; in response to a trigger operation of the target object on the authorized object adding component, an authorized object is acquired, and in the mode configuration operation interface, the target authorization range containing the authorized object is presented; in response to a mode switching operation of the target object on the target authorization mode, a switching success response interface is presented, and the switching success response interface is used for indicating that the authorization mode of the target application program is switched to the target authorization mode. In this way, the smooth switching of the authorization mode is realized by adding the authorized object into the authorization range of the target application program.

The invention relates to an industrial automation technology, and provides a task scheduling method and device, electronic equipment and a computer readable storage medium, and the method comprises the steps: obtaining description information of a target algorithm, and an execution demand and a data processing mode for completing a target task; determining a target node according to the execution demand; determining a target driving type according to the node type of the target node and the data processing mode, wherein the target driving type represents an algorithm operation mode matched with the data processing mode; and generating a target instruction according to the description information and the target driving type, and issuing the target instruction to the target node, so that the target node constructs a running environment based on the target instruction and executes a target algorithm in the running environment according to the target driving type to complete the target task. According to the invention, smooth switching of the same set of algorithm logic among different operation environments can be realized.

The invention discloses a steady-state operation control method for an offshore direct-current wind turbine generator. The method comprises the steps that in the first stage, medium-voltage direct-current collection voltage is established and maintained through an offshore direct-current wind turbine generator; and in the second stage, after the offshore centralized booster station is started and takes over the control of the medium-voltage direct-current collection voltage, the offshore direct-current wind turbine generator set is switched to a power output mode, and a lead-lag link is added to a power control link of the machine-side converter, so that the power output is stable. According to the method, the problem of coordination control between the offshore direct-current wind turbine generator and the centralized booster station adopting diode uncontrolled rectification is solved, and stable operation of the system under starting and wind speed fluctuation is realized through two-stage coordination and additional control links.