A new brushless synchro with look-up table error compensation

2015 ◽  
Vol 29 (4) ◽  
pp. 577-591
Author(s):  
Mahdi Ghafarzadeh ◽  
Ali Kamali E. ◽  
Aliakbar Damaki Aliabad ◽  
Rezvan Abedini ◽  
Mohammad Amin Tajeddini
Keyword(s):  
Error Compensation ◽  
Look Up Table

scholarly journals Feedforward Interpolation Error Compensation Method for Field Weakening Operation Region of PMSM Drive

Electronics ◽  
2019 ◽  
Vol 8 (9) ◽  
pp. 1052 ◽  
Author(s):  
Ji ◽  
Lee
Keyword(s):  
Error Compensation ◽  
Control Method ◽  
Interpolation Error ◽  
Control Methods ◽  
Field Weakening ◽  
Look Up Table ◽  
Feedforward Controller ◽  
The Look ◽  
Discontinuous Data ◽  
Linear Controllers

This study proposes a field weakening control method with interpolation error compensation of the look-up table based permanent-magnet synchronous machine (PMSM) method. The look-up table (LUT) based control method has robust control characteristics compared to other control methods that use linear controllers for current reference generation. However, it is impossible to store all current references under all circumstances for torque commands. General LUT based control methods use two input parameters. In order to mitigate the effect of discretely stored data, two-dimensional interpolation is used to linearly interpolate values between discontinuous data. However, because the current trajectories of PMSMs are generally ellipsoidal, an error occurs between the linearly interpolated and controllable current references. This study proposes a method to compensate for this interpolation error using a feedforward controller for rapid compensation. The improvement using the proposed method is verified by experiment and simulation.

Noise Analysis of the Photoelectric Detection Circuit and Research on the Error Compensation Method

2014 ◽  
Vol 898 ◽  
pp. 847-850
Author(s):  
Zhao Ji Zhang
Keyword(s):  
Error Compensation ◽  
Fuzzy Inference ◽  
Interpolation Method ◽  
Noise Analysis ◽  
Inference Method ◽  
Photoelectric Detection ◽  
Look Up Table ◽  
Neuro Fuzzy ◽  
Fitting Method ◽  
Detection Circuit

Based on the noise analysis of the photoelectric detection circuit, error compensation aiming at photoelectric detection circuit has been performed by making use of interpolation method, look-up table method, adaptive neuro-fuzzy inference method, and surface fitting method, so as to improve the accuracy of photoelectric detection as well as reducing the system error. In the meanwhile, the error compensation effects of different methods are compared and analyzed. Finally, with the help of the MATLAB software, these effects are simulated using the measured data of photoelectric diode experimental platform as the sample data. The result of the simulation indicates that the adaptive neuro-fuzzy inference method can improve the detection accuracy better and its error compensation effect is also better than that of interpolation method, look-up table method, and surface fitting method, when they are under the same conditions.

Tracking Error Compensation of XY Table Ball Screw Driven System Using Cascade Fuzzy P+PI

2016 ◽  
Vol 9 (5) ◽  
pp. 324 ◽  
Author(s):  
Zain Retas ◽  
Lokman Abdullah ◽  
Syed Najib Syed Salim ◽  
Zamberi Jamaludin ◽  
Nur Amira Anang
Keyword(s):  
Error Compensation ◽  
Tracking Error ◽  
Ball Screw ◽  
Driven System

A High Efficiency Class-E Power Amplifier Over a Wide Power Range Using a Look-Up Table Based Dynamic Biasing Scheme

2015 ◽  
Vol E98.C (4) ◽  
pp. 377-379
Author(s):  
Jonggyun LIM ◽  
Wonshil KANG ◽  
Kang-Yoon LEE ◽  
Hyunchul KU
Keyword(s):  
Power Amplifier ◽  
High Efficiency ◽  
Look Up Table ◽  
Dynamic Biasing ◽  
Class E

Assessment of the look-up table using the tubular and bundle CHF data and modification of the bundle correction factor

Kerntechnik ◽  
2006 ◽  
Vol 71 (4) ◽  
pp. 192-202
Author(s):  
D. K. Chandraker ◽  
P. K. Vijayan ◽  
D. Saha ◽  
R. K. Sinha
Keyword(s):  
Correction Factor ◽  
Look Up Table ◽  
The Look
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