scholarly journals Analysis of an Impact of Inertia Parameter in Active Disturbance Rejection Control Structures

Electronics ◽  
2020 ◽  
Vol 9 (11) ◽  
pp. 1801
Author(s):  
Dariusz Pazderski ◽  
Radosław Patelski ◽  
Bartłomiej Krysiak ◽  
Krzysztof Kozłowski
Keyword(s):  
Control Systems ◽  
Distributed Control ◽  
Disturbance Rejection ◽  
Theoretical Description ◽  
Operating Conditions ◽  
Control Structures ◽  
Main Research ◽  
Active Disturbance Rejection ◽  
Disturbance Rejection Control ◽  
Inertia Parameter

This paper is focused on a distributed control of fully actuated manipulators under operating conditions when dynamic couplings between their joints are insignificant. The main research aspect was to examine the influence of the inertia parameter on the tracking quality for control systems based on the active rejection paradigm. The theoretical description and preliminary hypothesis were supported by extensive simulation and experimental results. In particular, it is demonstrated that choosing the inertia parameter according to the real dynamics properties does not guarantee the best performance of the considered control structures.

scholarly journals Linear Active Disturbance Rejection Control for DC Bus Voltage of Permanent Magnet Synchronous Generator Based on Total Disturbance Differential

Energies ◽  
2019 ◽  
Vol 12 (20) ◽  
pp. 3906 ◽  
Author(s):  
Xuesong Zhou ◽  
Mao Liu ◽  
Youjie Ma ◽  
Bao Yang ◽  
Faqing Zhao
Keyword(s):  
Disturbance Rejection ◽  
Synchronous Generator ◽  
Operating Conditions ◽  
Active Disturbance Rejection Control ◽  
Nonlinear Load ◽  
Differential Signal ◽  
Response Characteristics ◽  
Active Disturbance Rejection ◽  
Disturbance Rejection Control ◽  
Characteristics Analysis

The wind power grid-connected inverter system has nonlinear, strong coupling, and is susceptible to grid voltage fluctuations and nonlinear load effects. To achieve satisfactory control results, the voltage outer loop is controlled by an improved linear active disturbance rejection control (LADRC). LADRC has strong adaptability, robustness and operability. It can automatically detect and compensate for internal and external disturbances, and correct complex controlled objects to integrator series. The total perturbation differential signal is introduced in the traditional linear extended state observer (LESO), which improves the dynamic perturbation observation ability of LESO. The frequency response characteristics analysis shows that the new LADRC has better anti-interference performance. The effectiveness of the improved controller under multiple operating conditions is verified by simulation.

scholarly journals Linear Active Disturbance Rejection Control of Grid-Connected Photovoltaic Inverter Based on Deviation Control Principle

Energies ◽  
2020 ◽  
Vol 13 (15) ◽  
pp. 3790 ◽  
Author(s):  
Xuesong Zhou ◽  
Jiayao Wang ◽  
Youjie Ma
Keyword(s):  
Disturbance Rejection ◽  
Operating Conditions ◽  
Active Disturbance Rejection Control ◽  
State Variable ◽  
Stability Performance ◽  
Active Disturbance Rejection ◽  
Disturbance Rejection Control ◽  
Control Principle ◽  
Power Generation Systems ◽  
Better Than

Photovoltaic grid-connected power generation systems are easily affected by external factors, and their anti-interference performance is poor. For example, changes in illumination and fluctuations in the power grid affect the operation ability of the system. Linear active disturbance rejection control (LADRC) can extract the “summation disturbance” information from the system and eliminate the disturbance at the fastest speed by controlling the signal before it affects the final output of the system. In this paper, an improved linear ADRC based on the principle of deviation control is proposed, and the voltage outer loop is controlled by an improved LADRC. This improved LADRC takes the deviation between each state variable and its observed value as the regulation basis for each state variable of the linear extended state observer (LESO). Based on the analysis of the bode diagram in the frequency domain, it can be concluded that, compared with the unimproved LADRC, the new LADRC has better disturbance rejection performance. The simulation results show that the control performance of the new, improved LADRC is better than that of the unimproved LADRC under different operating conditions, and it has better stability performance and anti-disturbance performance.

Active Disturbance Rejection Control for the Joint Driven by PMAs

ROBOT ◽  
2011 ◽  
Vol 33 (4) ◽  
pp. 461-466 ◽  
Author(s):  
Hao LIU ◽  
Tao WANG ◽  
Wei FAN ◽  
Tong ZHAO ◽  
Junzheng WANG
Keyword(s):  
Disturbance Rejection ◽  
Active Disturbance Rejection Control ◽  
Active Disturbance Rejection ◽  
Disturbance Rejection Control
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