parameter calculation
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Author(s):  
Ramesh Kumar Patel ◽  
Madhu Upadhyay

Enormous power transformers are the main gear for the power lattice. Their dependability not just influences the accessibility of power in the inventory region, yet in addition influences the monetary working of an energy provider. The primary goal of this work of the improvement of the transformer testing simulating model on the MATLAB/SIMULINK climate.The testing which depends on generator and grid of the transformer, as well as the related outcomes in SIMULINK, will be part of the conceptual stage. In addition, the technique will look into the effects of transformer validation in the method relying on grid on devices which are connected to the grids. According to the findings, neither source has an impact on the parameter calculation of Open Circuit and Short Circuit assessments. Realistic situations, on the other hand, would necessitate testing which relies on grid, which would enable a broader variety of transformers of different ratings to be evaluated with increased current capacity. The effect of a mistake on the grid can be quickly assessed by looking at the destination of the mistake, the period of the mistake, and any dips that may have took place.


Aerospace ◽  
2021 ◽  
Vol 8 (11) ◽  
pp. 336
Author(s):  
Xiaoshuai Fan ◽  
Zhenyu Jiang ◽  
Xibin Bai ◽  
Shifeng Zhang ◽  
Longbin Liu

For aircraft which move in the atmosphere, the angle of attack and angle of sideslip cannot be measured precisely. This limits the precision of guidance and control systems, so the flush air data sensing system module with navigation and temperature information is designed for atmosphere parameter calculation. In this work the traditional parameter calculation method is improved, and a new algorithm which combines pressure data, temperature data and navigation data to calculate the atmosphere parameters is proposed. A ground experiment test scheme with a simulated flight environment is designed and the measured data is fitted and filtered to complete the experiments. The flush air data sensing module gets pressure data and temperature data of the atmosphere with sensors, and the measured data is integrated with navigation information to calculate the aircraft parameters of the angle of attack, angle of sideslip, dynamic pressure, static pressure, Mach number and so on. Calculated parameters can be transmitted to guidance and control systems to improve the attitude and trajectory precision for an aircraft. Experimental results show that the software and hardware of the flush air data system module with navigation and temperature information work well, and communication of various devices is normal. The flight status of aircraft can be precisely calculated online, which provides a useful reference for prospective wind tunnel experiments and flight tests.


Author(s):  
G. Pineda-Peña ◽  
E. M. Vargas-Pineda ◽  
L. J. Rivera-Contreras ◽  
David A. Landínez Téllez ◽  
J. Roa-Rojas

2021 ◽  
Vol 15 (2) ◽  
pp. 218-231
Author(s):  
Muhammad Suhail Shaikh ◽  
Changchun Hua ◽  
Munsif Ali Jatoi ◽  
Muhammad Mohsin Ansari ◽  
Aleem Ahmed Qader

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