Abstract
The aim of the work is the construction and study of a simplified model of a LED lighting line with controlled lights to assess the applicability of lighting control for long lines. To transmit control commands, low-frequency PLC technology is used, in which information is encoded by the number of half-waves of the mains voltage located between the markers, which are half-waves modulated in amplitude. The parameters of modern power supplies used in LED technology are considered. It is shown that the applied power sources have a high power factor, a wide range of input voltages, and have a sinusoidal shape of the current consumption. A high-quality power source with a power factor corrector is actually a load in which the current is minimally ahead of the voltage, which allows us to consider the power source as an active resistance. The dimmable power supply of IPS50-350TU LED lamps was experimentally studied. Oscillograms of the input voltage and current are compared, the sinusoidal shape of the input current is confirmed, the voltage current is outstripped by an angle of 4.3 degrees. In the Matlab environment, a simplified model of an LED lighting system for long lines was developed and modeled. As input variable parameters, the length of the line, the cross section of the supply wire, the parameters of the power source of the lamp, the number of lighting devices in the line are used. Time diagrams of voltage at the far end of the line were received and analyzed during transmission of control commands. It is shown that the developed model makes it possible to obtain a voltage form in the line and form requirements for the receiver-demodulator control commands installed in the fixtures. The obtained simulation results were used in the development of a dimmable LED lighting system. A central lighting control cabinet has been developed with implemented control functions on the power line, as well as command receivers-demodulators located in the luminaries and setting the dimming level of LED lamps.
Keywords
PLC technology, LED lighting line, marker, dimmable power supply, voltage and current waveforms, lighting system model, Matlab, power factor, voltage loss.
1. Korotchenko F., Natashina N. Creating a data network based on PLC technology // CONTROL ENGINEERING RUSSIA. 2019. No 6 (84). P. 64-68. (In Russian).
2. What is Power Line Communication? // Cypress Semiconductor. 2011. URL: https://www.eetimes.com/what-is-power-line-communication/ (accessed 15 March 2020).
3. Sittoni A. et al. Street lighting in smart cities: A simulation tool for the design of systems based on narrowband PLC // 2015 IEEE First International Smart Cities Conference (ISC2), IEEE, 2015, pp. 1-6. DOI: 10.1109 / ISC2.2015.7366195. URL: https://ieeexplore.ieee.org/document/7366195 (accessed 15 March 2020).
4. Vstavskaya E.V., Kostarev E.V. The method of transmitting information through the supply network and its use in the construction of automated control systems for outdoor lighting. Vestnik YuUrGu [Bulletin of SUSU]. 2011. No. 2. P. 81-84. (In Russian)
5. Vstavskaya E.V., Barbasova T.A., Kostarev E.V., Konstantinov V.I. Construction of information transmission systems over the wires of the supply network // Vestnik YuUrGu [Bulletin of SUSU]. 2011. No. 23. P. 60-64. (In Russian)
6. Kopytov S.M., Ulyanov A.V., Shibeko R.V. Mains voltage switch for controlling LED lighting devices using low-frequency PLC technology. Vestnik Irkutskogo gosudarstvennogo tekhnicheskogo universiteta [Bulletin of Irkutsk State Technical University]. 2018. No 9(22). P. 152-161. DOI: 10.21285 / 1814-3520-2018-9-152-161. (In Russian)
7. Kopytov S.M. and Ulyanov A.V. Modification of the Dimming Control Method for LED Lighting Using PLC Technological-ogy // 2018 International Multi-Conference on Industrial Engineering and Modern Technologies (FarEastCon), Vladivostok, Russia, 2018, pp. 1-4. DOI: 10.1109 / FarEastCon.2018.8602739. URL: http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=8602739&isnumber=8602430 (accessed 15 March 2020).
8. S.M. Kopytov and A.V. Ulyanov, Development and Research of Marker Isolation Schemes from Low-Frequency PLC Signal // 2019 International Multi-Conference on Industrial Engineering and Modern Technologies (FarEastCon), Vladivostok, Russia, 2019, pp. 1-4. DOI: 10.1109 / FarEastCon.2019.8934699 URL: https://ieeexplore.ieee.org/document/8934699 (accessed 15 March 2020).
9. Kopytov S.M., Ulyanov A.V., Shibeko R.V. Development of energy-efficient lighting systems. Sovremennye naukoyemkie tekhnologii [Modern high technology]. 2019. No 3-2. P. 199-206; URL: http://www.top-technologies.ru/ru/article/view?id=37465 (accessed 15 March 2020). (In Russian)
10. Kopytov S.M., Ulyanov A.V. Controller for controlling LED lighting networks along the power line. Elektrotekhnicheskie i informatsionnye kompleksy i sistemy [Electrical and information complexes and systems]. 2019. No 1 (15). P. 52-59. DOI: 10.17122 / 1999-5458-2019-15-1-52-59. (In Russian)
11. Valiullin K.R. Simulation modeling of an electro-technical street lighting system. Elektrotekhnicheskie sistemy i kompleksy [Electrotechnical systems and complexes]. 2018. No. 4(41). P. 48-55. DOI: 10.18503 / 2311-8318-2018-4(41)-48-55. (In Russian)
12. Tenti P., Spiazzi G. Harmonic Limiting Standards and Power Factor Correction Techniques // 6th European Conference on Power Electronics and Applications - EPE '95. URL: http://www.dei.unipd.it/~pel/Articoli/1995/Epe/tutorial.pdf (accessed 15 March 2020).
13. Chaplygin E.E., Kalugin N.G. Teoriya moshchnosti v silovoy elektronike. Uchebnoe posobie dlya studentov, obuchayushchikhsya po spetsialnosti “Promyshlennaya elektronika” [Power theory in power electronics. The manual for students studying in the specialty of Industrial Electronics]. Moscow: MPEI, 2006. 85 p. (In Russian)
14. German-Galkin S.G. School MATLAB. Virtual laboratories of power electronics devices in MATLAB-Simulink environment. Lesson 14. Analysis, calculation and research of the power factor corrector. Silovaya elektronika [Power Electronics]. 2011. No. 4(32). P. 90-96. (In Russian)
15. Belov G., Serebryannikov A., Pavlova A. Structural dynamic models and the frequency method for the synthesis of two-circuit control systems for pulsed converters. Silovaya elektronika [Power Electronics]. 2008. No. 3. P. 98-106. (In Russian)
16. I. Castro, A. Vazquez, M. Arias, D.G. Lamar, M.M. Hernando and J. Sebastian. A Review on Flicker-Free AC – DC LED Drivers for Single-Phase and Three-Phase AC Power Grids // IEEE Transactions on Power Electronics, vol. 34, no. 10, pp. 10035-10057, Oct. 2019. DOI: 10.1109 / TPEL.2018.2890716 URL: https://ieeexplore.ieee.org/document/8598951 (accessed 15 March 2020).
17. G.G. Pereira, M.A. Dalla Costa, J.M. Alonso, M.F. De Melo and C.H. Barriquello, LED Driver Based on Input Current Shaper Without Electrolytic Capacitor // IEEE Transactions on Industrial Electronics, vol. 64, no. 6, pp. 4520-4529, June 2017. URL: https://ieeexplore.ieee.org/document/7815260 (accessed 15 March 2020).
18. Y. Wang, J.M. Alonso and X. Ruan, A Review of LED Drivers and Related Technologies // IEEE Transactions on Industrial Electronics, vol. 64, no. 7, pp. 5754-5765, July 2017. URL: https://ieeexplore.ieee.org/document/7869351 (accessed on 15.03.20).
19. Kalantarov P.L., Zeitlin L.A. Raschet induktivnostey: Spravochnaya kniga [Inductance Calculation: Reference Book]. Leningrad: Energoatomizdat, 1986. 488 p. (In Russian)
20. The electronic catalog of the company Argos-Trade. URL: https://www.compel.ru/infosheet/MW/ELG-150-48B (accessed 15 March 2020). (In Russian)