نتایج جستجو برای: active disturbance rejection control adrc
تعداد نتایج: 1765516 فیلتر نتایج به سال:
In this paper, the issue of roll channel for attitude control small air-to-surface missiles suffering from multiple disturbances is investigated. The dynamic model established and controller based on active disturbance rejection (ADRC) designed. Based extended state observer, observed compensated to track rate accurately. Then, simulations verification are carried out rudder efficiency, barycen...
System frequency may change from defined values while transmitting power from one area to another in an interconnected power system due to various reasons such as load changes and faults. This frequency change causes a frequency error in the system. However, the system frequency should always be maintained close to the nominal value even in the presence of model uncertainties and physical const...
A valve-controlled hydraulic cylinder system has the characteristics of uncertainty and time-variance, electro-hydraulic servo unit encounters shock, vibration, other external interference when working, which seriously affect stability system. Therefore, it is necessary to introduce an active disturbance rejection controller (ADRC) into control. However, there are many ADRC parameters, difficul...
To improve the speed control performance of a diesel engine, active disturbance rejection controller (ADRC) is designed by adding an arranging transition process to traditional PID controller, extracting differential signals reasonably, and adopting nonlinear combination error signals. The ADRC composed tracking differentiator (TD), extended state observer (ESO), feedback (NLSEF). Such construc...
This study aimed to design an active disturbance rejection control (ADRC) with parameter identification for current in permanent magnet synchronous motor (PMSM) servo systems. Given the nonlinear uncertainty of PMSMs, a method based on consensus Kalman filter was designed establish approximate model motor, reduce loop model, and utilize improved ADRC algorithm eliminate influence uncertainty, n...
Based on active disturbance rejection control (ADRC) and fuzzy logic control, a control scheme for attitude maneuver control of spacecraft is proposed. In which a maneuver path is planned to reduce overshoot and improve rapidity, and an extended state observer is designed to cope with unknown disturbances and parameter uncertainties. Furthermore, in order to improve dynamic performance of the c...
Permanent magnetic synchronous motor (PMSM) is a strong coupling and non-linear system. In the PMSM speed-regulation system, PID controller is the conventional one, it is difficult to decide the parameters of PID. Moreover, the performance of PID controller is not very well in large disturbance. In the paper, the Active Disturbance Rejection Controller (ADRC) is applied to the PMSM speed-regula...
In the permanent magnet synchronous motor speed regulation system, dynamic performance of conventional active disturbance rejection control (ADRC) system will be deteriorated by using a low bandwidth filter. To solve this problem, two ADRC controllers considering measurement noise are proposed in article. One is based on extended state observer (ESO), other phase-locking loop (PLLO). systems, a...
The tiltrotor aircraft consists of three primary flight modes, which are helicopter mode in low forward speed flight, airplane high and conversion mode. This paper presents an active disturbance rejection controller for flight. First, a dynamics model is developed verified. Then, control laws, designed via the (ADRC) sliding (SMC) techniques, proposed with uncertainties external disturbance, es...
In order to solve the problem of poor control performance, caused by fixed parameters active disturbance rejection (ADRC) in bearingless permanent magnet synchronous motors (BPMSM), a dynamic adjustment method ADRC, based on genetic algorithm and back-propagation neural network (GA-BPNN), is proposed. Firstly, ADRC models motor-side suspension-side are established, according motor speed formula...
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