A method to improve the reliability of three-level inverter based on equivalent input disturbance and repetitive control combinations

2020 ◽  
Vol 114 ◽  
pp. 113837
Author(s):  
Guoliang Yang ◽  
Jinze Yin ◽  
Zhiying Huang ◽  
Yuna Zhang
Keyword(s):  
Repetitive Control ◽  
Input Disturbance ◽  
Equivalent Input Disturbance

Compensation for Input Nonlinearities in Repetitive Control Systems Based on Improved Equivalent-Input-Disturbance Approach

2016 ◽  
Vol 20 (1) ◽  
pp. 146-154 ◽  
Author(s):  
Wenjing Cai ◽  
◽  
Min Wu ◽  
Jinhua She ◽  
Luefeng Chen ◽  
...  
Keyword(s):  
Control Systems ◽  
Prior Information ◽  
Repetitive Control ◽  
Control Law ◽  
Extended State ◽  
Input Disturbance ◽  
Actuator Nonlinearities ◽  
Equivalent Input Disturbance ◽  
Reference Input ◽  
Tracking Period

The equivalent-input-disturbance (EID) approach is used to deal with the problem of tracking period signals for a plant with input actuator nonlinearities in a repetitive control system. First, an EID estimator is constructed by taking the full advantage of an extended state observer (ESO), the design of the ESO is explained. Next, an EID estimate, which represents the synthetic effect of the nonlinearities, is incorporated into a repetitive control law to compensate for the effect caused by the nonlinearities. This method does not require any prior information about the nonlinearities. It guarantees perfect tracking for periodic reference input and satisfactory compensation for input nonlinearities at the same time. Finally, simulation and experimental results show the effectiveness of the method.

Disturbance rejection using SMC-based-equivalent-input-disturbance approach

2022 ◽  
Vol 418 ◽  
pp. 126839
Author(s):  
Xiang Yin ◽  
Jinhua She ◽  
Min Wu ◽  
Daiki Sato ◽  
Kouhei Ohnishi
Keyword(s):  
Disturbance Rejection ◽  
Input Disturbance ◽  
Equivalent Input Disturbance
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