In response to the problems of impedance variation and rich background harmonics in weak grid environment traditional LCL grid-connected inverters, which cause distortion current reduce stability entire system, this paper proposes a passive fuzzy-active disturbance rejection control strategy. Firstly, passivity-based (PBC) is introduced into inverter system ensure global system. Secondly, order...

According to the unstable and nonlinear performances of servo valve-controlled hydraulic motor, classical control methods based on linear theory are gradually unable meet high-performance requirements system. Using motor third-order active disturbance rejection (ADRC) improve dynamic performance system is feasible. The mathematical model simulation ADRC for established respectively. For phase l...

The important practical problem of robust synchronization in distance and orientation for a class differential-drive mobile robots is tackled this work as an active disturbance rejection control (ADRC) problem. To solve it, kinematic model the governed system first developed based on formation angle between agents. Then, special high-order extended state observer designed to collectively estima...

This paper investigates secure control of Networked Inverted Pendulum Visual Servo Systems (NIPVSSs) based on Active Disturbance Rejection Control (ADRC). Firstly, considering the network- and image-induced delays in conjuction with computational errors caused by image processing attacks, model NIPVSSs is established. Secondly, limitations traditional Single-Input-Single-Output (SISO) ADRC used...

This paper focuses on the flying inverted pendulum problem, i.e balancing a pendulum on a flying vehicle. After analyzing the system dynamic, a three loop cascade control strategy based on active disturbance rejection control (ADRC) is proposed. Not only the pendulum balancing, but also the trajectory tracking of the vehicle can be realized successfully even when strong disturbances exist. The ...

The performance of active disturbance rejection control (ADRC) algorithms can be limited in practice by high-frequency measurement noise. In this article, problem is addressed transforming the high-gain extended state observer (ESO), which inherent element ADRC, into a new cascade structure. Set experiments, performed on dc–dc buck power converter system, show that ESO design, compared to conve...

The quad tilt rotor (QTR) has the problem of manipulation redundancy due to helicopter and fixed-wing mechanisms. Solving develop an effective strategy is critical for QTR during conversion flight. A novel based on states proposed in this paper solve mode. longitude controlled by angle nacelle mode course speed error propellers Active Disturbance Rejection Control (ADRC) adopt into flight contr...

Electromagnetic active suspension is an important technique used in vehicles to improve ride comfort and handling stability. To achieve satisfactory performance, the control requires strong robustness against vehicle uncertainties external disturbances. The voice coil motor (VCM) applied suspension. A model considering actuator established. An controller based on disturbance rejection (ADRC) me...

When the driving road surface condition suddenly changes from dry to wet, the driving wheels will slip due to much lower coefficient of friction, and thus cause the vehicle to skid. Unlike the popular anti-brake system which applies differential braking to wheels, the presented ant-skid Control properly distributes torques to wheels without braking. In comparison with many recently developed an...

Induction motor is widely used in small scale as well as the large scale industries. In industrial sector, there prevails a major drawback in speed controlling of three phase induction motor drives when subjected to heavy loads. These are called as disturbances in a motor. A motor can have both the internal disturbance as well as the external disturbance. To eliminate this types of disturbance ...