7results about How to "Reduce current" patented technology

The invention discloses a reinforcement learning-based casting cleaning process parameter adaptive control method, which comprises the following steps of: constructing a reinforcement learning model for updating casting cleaning process parameters; the method comprises the steps that in the process that a casting cleaning system cleans a casting according to a set control period, key process signals in each control period are sequentially collected, and observation vectors are generated; inputting the obtained observation vector into a reinforcement learning model, and processing the observation vector by the reinforcement learning model to obtain a process parameter adjusting quantity, and the casting cleaning process parameters of the current control period are updated according to the process parameter adjusting quantity to obtain updated casting cleaning process parameters, and the updated casting cleaning process parameters are adopted to control a casting cleaning system of the next control period. According to the casting cleaning process parameter self-adaptive control method based on reinforcement learning, continuous and self-adaptive adjustment of the process parameters can be achieved, and the problem that fixed parameter control is insufficient in adaptability under complex working conditions is solved.

The invention belongs to the technical field of strip steel continuous production, and relates to a transition plate welding method and system for heavy gauge galvanized plate welding of a recoiling unit, the system obtains specification parameters of a forward galvanized plate and a backward galvanized plate through a data obtaining module, calls a transition plate parameter library, and selects a non-plating low-carbon steel transition plate body; the process parameter optimization module calculates and outputs the optimal size parameter of the transition plate based on the median transition principle; the first welding control module is used for controlling positioning, clamping, shearing, centering and welding operation in the first welding process; the middle positioning control module is used for controlling the positioning and preparation work of the rear end of the transition plate and the head of the subsequent galvanized plate; the second welding control module is used for controlling clamping, shearing, centering and welding operation in the second welding process; and the post-welding treatment module is used for equipment resetting, loop control and establishment and adjustment of whole-line tension after welding is completed. The welding seam quality can be effectively improved, and the safety risk is reduced.

The application provides a motor, and relates to the technical field of motors.The motor comprises a rotor core, a first magnet embedded in the rotor core, N first magnets, N is an integer greater than 1, the N first magnets are distributed at intervals in the circumferential direction of the rotor core, and a second magnet embedded in the rotor core, the second magnet is located between two adjacent first magnets in the circumferential direction of the rotor core; wherein the rotor core is cut by a plane perpendicular to the axis of the rotor core to obtain a cross section; in the cross section, the first magnet extends in the circumferential direction of the rotor core, and the second magnet extends in the radial direction of the rotor core.

The present application relates to the technical field of wireless power transmission, and particularly relates to a coil arrangement design method and system of a multi-relay wireless power transmission structure, steps as follows: determining the transmission distance according to the voltage level; under the constraint of the transmission distance, introducing the arrangement ratio to represent the ratio of the second interval between adjacent groups in the non-equidistant grouping arrangement and the first interval between the coils in the same group, and establishing a geometric parameterized model of the non-equidistant arrangement; constructing the coupling impedance matrix based on the mutual inductance theory, and deducing the system energy transmission efficiency model; for different candidate values of the coil series, on the basis of the given coil parameters, the efficiency distribution curve of the system efficiency changing with the arrangement ratio is obtained by adjusting the arrangement ratio; based on the efficiency distribution curve, the optimal coil series and the corresponding optimal arrangement ratio that make the system energy transmission efficiency optimal are determined, and the optimal design scheme of the coil arrangement design is obtained. The present application can effectively improve the stability of system operation, the reliability of coil interface combination and the overall insulation stability.

A control method, an oil pump, and a control system are disclosed. The control method includes the following steps: A) acquiring the current or current-related quantity passing through the motor; B) determining whether the current or current-related quantity passing through the motor meets a first preset condition; C) if the current or current-related quantity of the motor meets the first preset condition, reducing the current operating speed of the motor to a first speed and running it for a first duration; and acquiring the current current or current-related quantity of the motor after speed adjustment; D) determining whether the current current or current-related quantity of the motor after speed adjustment meets a second preset condition; E) if the second preset condition is met, reducing the first speed of the motor to a second speed and running it for a second duration. This is beneficial for improving the service life of the control device controlling the operation of the motor.

The application relates to the technical field of motor control, and discloses a design method of an outer rotating motor combined with a cylinder and a disc body, which comprises application to a microcontroller; the method obtains the steady-state temperature and the electrical angular velocity of the motor, calculates the thermodynamic load margin and the cross-domain temperature gradient; the cross-domain temperature gradient is used to fine-tune the reference high-frequency injection frequency, and a reconstructed high-frequency voltage instruction is generated; corresponding cross-saturation coupling matrices are obtained in a low-speed area and a medium-high-speed area respectively, and a full-speed-area continuous cross-saturation coupling matrix is generated according to a smooth transition function; an overall loss cost function is constructed based on the instruction torque and the thermodynamic load margin, an extreme value optimization is performed on the current instruction set, and finally a pulse width modulation signal is output. The application introduces the temperature factor into the electromagnetic control process, compensates for the magnetic impedance drift interference, realizes the smooth transition of the high-speed control area and the low-speed control area of the motor, and effectively controls the operation loss of the motor under the limitation condition.