Evaluation of direct current electric power systems of the aircraft based on characteristics of a transient state
More details
Hide details
Instytut Techniczny Wojsk Lotniczych
Online publish date: 2018-12-17
Publish date: 2018-12-17
Submission date: 2018-08-22
Final revision date: 2018-10-29
Acceptance date: 2018-12-14
This publication describes the aim and essence of testing transient states of direct current electric power systems in relation to normative characteristics of a transient state. The above diagnostic tests of the given direct current nodes of the aircraft enable to quickly and efficiently determine the capability of its electric power systems to the self-regulation of direct current voltage. Many years of research of the aircraft conducted in the Air Force Institute of Technology (ITWL) confirm that the ageing of power network elements impacts the deterioration of the parameters of voltage of transient state. On the basis of the results of on-ground tests of the Su-22 engine, the obtained model parameters of transient states were presented in subsequent years of its operation, which confirms the above-mentioned statement. There were also presented the selected results of tests performed during the follow-up overhaul of Su-22 aircraft with exceeded permissible normative thresholds of the change of voltage amplitude values by the step increase of load (decaying impulses). The determined reasons for detected malfunctions were the incorrect operation of the aircraft electrical system, the inefficiency of voltage regulators RN-180M and the defectiveness of direct current generators GS 12T 3s.
Tomasz Henryk Tokarski   
Instytut Techniczny Wojsk Lotniczych
1. Wang P. Civil aircraft electrical power system safety assessment: issues and practices. Kidlington, Oxford, Cambridge, Ma: Butterworth-Heinemann, 2017.
2. Zieja M, Ważny M, Stępień S. Outline of a method for estimating the durability of components or device assemblies while maintaining the required reliability level. Eksploatacja i Niezawodność-Maintenance and Reliability. 2018; 20(2): 260-266. http://dx.doi.org/10.17531/ein....
3. Żurek J, Kaleta R, Zieja M. An application of characteristic function in order to predict reliability and lifetime of aeronautical hardware. Conference ICNAAM), Rhodes, GREECE 2015, Proceedings Of The International Conference On Numerical Analysis And Applied Mathematics 2015 (Icnaam-2015) Book Series: AIP Conference Proceedings 2016; 1738.
4. Gębura A, Tokarski T. Cechy diagnostyczne parametrów napięcia wyjściowego lotniczych prądnic pokładowych prądu stałego. Zeszyty Naukowe Politechniki Rzeszowskiej. 2004; 213: 239-340.
5. Krishan R, Verma A, Mishra S. Loadability analysis of DC distribution systems. International Journal Of Electrical Power & Energy Systems. 2018; 103:176-184. https://doi.org/10.1016/j.ijep....
6. Norma Obronna NO-15-A200: 2016 - Wojskowe statki powietrzne. Pokładowe układy zasilania elektrycznego. Podstawowe parametry, wymagania i badania.
7. ISO 1540:2006 Aerospace – Characteristic of aircraft electrical systems.
8. He L, Yin C, Peng W, Yuan R, Huang H-Z. Reliability and risk assessment of aircraft electric systems. Eksploatacja i Niezawodność – Maintenance and Reliability. 2014; 16(4): 497–506.
9. Szelmanowski A, Zieja M, Głyda K, Tokarski T. Research method of dynamic capability of an actuating block of the SSP-FK aircraft fire suppression system in false alarm aspect. Journal of KONES. 2016; 23: 525-532. https://doi.org/10.5604/123140....
10. Riu D, Sautreuil M, Retiere N, Sename O. Control and design of DC grids for robust integration of electrical devices. Application to aircraft power systems, International Journal Of Electrical Power & Energy Systems. 2014; 58: 181-189.
11. Emadi A, Ehsani M.: Aircraft power systems: technology, state of the art and future trends, IEEE Aerospace and Electronic Systems Magazine. 2000: 15: 28-32.
12. Gupta JB. Electrical Machines (AC & DC Machines), S. K. Kataria & Sons, 2010.
13. Gupta JB. Theory & Performance of Electrical Machines, S.K. Kataria & Sons, 2015.
14. Tokarski T, Kalisiak M. Opracowanie projektów stanowiska i metodyki do sprawdzenia położenia szczotek prądnicy prądu stałego GS-12T względem strefy neutralnej, BT ITWL 8863/50, Warszawa, 2017.