3results about How to "Simplify Control Design" patented technology

The present application relates to a kind of nuclear power plant airborne radioactive containment ventilation device and group control method, process function piece includes fresh air treatment function piece, air supply and exhaust and negative pressure regulation function piece and purification function piece, fresh air treatment function piece, air supply and exhaust and negative pressure regulation function piece and purification function piece are sequentially connected by pipeline, control piece includes global group control module, fresh air treatment group control module, air supply and exhaust and negative pressure regulation group control module, purification group control module.The nuclear power plant airborne radioactive containment ventilation device and group control method of the present application can make operator only need to send a small amount of simple control instruction by global group control module, realize the function control of each component, realize the automatic operation regulation of ventilation system under different conditions, system one-key start-stop function, can greatly improve the automation level of ventilation system, reduce operator operation load, reduce human error risk, simplify ventilation system control design.

This invention discloses a command filtering control method, system, and controller for nonlinear systems based on a dominant function, belonging to the field of intelligent control technology. The command filtering control method includes the following steps: S1: establishing an uncertain strict feedback nonlinear dynamic system model; S2: designing a general command filter based on a dominant function; S3: determining the desired output trajectory of the nonlinear system and calculating the tracking error; S4: designing a control input signal u to make the tracking error approach zero. This invention, by designing a novel general command filter based on a dominant function, allows the command filter parameters to be arbitrarily positive numbers and enables the control system to maintain global stability. Furthermore, this control method can significantly reduce the complexity of control design, making the design of intelligent controllers simpler and easier.

The invention belongs to the technical field of aircraft control, and discloses a self-adaptive reverse cooperative control method and system for a coaxial dual-rotor aircraft, and the method comprises the steps: obtaining a target attitude instruction; according to whether pitching and rolling instructions exceed a set threshold value or not, a reverse cooperative control strategy or a conventional same-direction control strategy is intelligently selected, and upper and lower rotor wing control instructions are obtained through calculation; according to the yawing and vertical speed instructions, the target rotating speed of the double motors is calculated; and converting the control instruction into a steering engine PWM signal and synchronously outputting the steering engine PWM signal to an execution mechanism. The system correspondingly comprises an attitude instruction acquisition module, a control instruction calculation module, a motor rotating speed calculation module, a steering engine signal conversion module and a synchronous output module. According to the method, the response capacity under large maneuverability is improved through reverse cooperative control, safe takeover and degraded operation under the steering engine set fault are achieved through a fault detection and redundancy control mechanism, and the control precision, maneuverability and reliability of the aircraft under the complex working condition are remarkably improved.