5 results about "Loop performance" patented technology

The application relates to an event-triggered optimal line-of-sight (LOS) formation control method and system for an underactuated unmanned surface vehicle (USV) under unknown disturbance, and relates to the technical field of USV control. The application aims to solve the technical problem of realizing event-triggered optimal control while considering actuator saturation by establishing an RL-driven LOS guidance scheme, so as to achieve optimal state regulation and tracking control. The technical points are as follows: the application establishes an RL-driven LOS guidance scheme, decouples the trigger decision and the actuator allocation, and introduces a new event-triggered mechanism. The overall structure of the ETO-LOS control scheme proposed by the application is as follows: firstly, the expected trajectory and external disturbance are processed in the LOS guidance layer to generate a virtual control signal. Then, optimal control is realized through a DSC and a two-stage IAC network, and then an event-triggered mechanism is constructed in the actuator layer. The ETO-LOS scheme proposed by the application realizes stable learning and closed-loop performance while significantly reducing the control update frequency.

This application discloses a method, apparatus, device, and storage medium for determining the performance of a secondary circuit, relating to the field of power technology. The method includes: acquiring electrical quantity data of the current secondary circuit and switching quantity data of each secondary device in the current secondary circuit; identifying fault timing in the current secondary circuit based on the electrical quantity data and switching quantity data to obtain key time nodes; using the key time nodes as timing benchmarks, performing feature analysis on fault recording data characterizing the primary devices connected to the current secondary circuit and response event data characterizing the current secondary circuit's response to the faults of the primary devices to obtain fault behavior characteristics; and analyzing the performance status of the current secondary circuit based on the fault behavior characteristics to obtain response performance indicators. This application, by constructing key time nodes for fault timing as timing benchmarks, reduces misjudgments and omissions caused by disconnections, thus improving the accuracy of secondary circuit performance analysis.

The application discloses a high-speed fan performance test system and method based on magnetic coupling transmission, transmits first test data and second test data to an upper computer, pre-processes according to preset parameters, generates standardized first performance characteristic set and second performance characteristic set, calculates initial performance parameters according to the first performance characteristic set and the second performance characteristic set, obtains first deviation coefficients and second deviation coefficients, generates a target performance parameter set, outputs the target performance parameter set to a curve fitting module, generates at least one fan characteristic curve representing the high-speed fan under the magnetic coupling transmission working condition, splices the fan characteristic curve, and obtains a target derived characteristic curve graph for evaluating the high-speed fan performance. The high-speed fan performance test method and system based on magnetic coupling transmission construct a complete and closed-loop performance evaluation process, and effectively avoid the driving side data distortion problem caused by magnetic coupling slip.

This application discloses a method, device, medium, and product for optimizing the performance of a PI control loop in an industrial process, relating to the field of industrial automatic control technology. The method includes initializing the initial parameters of a deep reinforcement learning agent and a PI controller; generating setpoints for the industrial process based on a continuous smooth curve; acquiring the process variables of the current control cycle; calculating the tracking error and error rate of change based on the setpoints; outputting a reference adjustment amount for the PI controller parameters through a policy network; trimming the reference adjustment amount; updating the proportional gain and integral gain of the PI controller based on the trimmed reference adjustment amount; calculating the immediate reward of a composite reward function based on the tracking error and error rate of change; dynamically and adaptively adjusting the weight coefficients in the composite reward function; updating the evaluation network and policy network of the deep reinforcement learning agent; and outputting the optimized PI controller parameters. This application improves the smoothness and safety of the control process.

The application discloses a new energy power generation composite coordinated control system and method, relates to the technical field of power system control, and comprises a multi-source heterogeneous data sensing and fusion module, a multi-time scale collaborative optimization decision module, an adaptive hierarchical control instruction distribution and reconstruction module, a local rapid response and virtual inertia simulation execution module and a closed-loop performance evaluation and parameter self-tuning module; the method comprises the following steps: collecting and fusing data to generate a data set; performing collaborative optimization calculation to generate a control instruction set; dynamically selecting an instruction distribution strategy and distributing the instruction; a control algorithm rapidly responds to a power instruction, and inertia support and damping characteristics are simulated and provided; the actual response of the system is continuously monitored, and key control parameters are adjusted. The application can improve the dynamic stability and regulation accuracy of the system, make up for the problem of the decreased anti-disturbance ability of the high-proportion new energy power grid, and greatly improve the utilization efficiency of adjustable resources and the overall operation economy of the system.