tailieunhanh - A new approach of scale invariance for complex system and application in power line communication modelling

This approach will be tested for not only a general case study but also for an opened circuit without attenuation and bruit. The result is compared with the classical method. | Journal of Science and Technology 55 (1) (2017) 93-103 DOI: A NEW APPROACH OF SCALE INVARIANCE FOR COMPLEX SYSTEM AND APPLICATION IN POWER LINE COMMUNICATION MODELLING Le Thi Tinh Minh1, Nicolas Retiere2, Nguyen Dinh Quang3, 4 1 2 The University of Da Nang – University of Science and Technology (DUT) 54, Nguyen Luong Bang, Da Nang, Viet Nam Grenoble Electrical Engineering Lab, Université de Grenoble, Saint-Martin-d’Hères, France 3 Institute of Energy Science (IES), Vietnam Academy of Science Technology (VAST), 18 Hoang Quoc Viet, Cau Giay, Ha Noi, Vietnam 4 University of Science and Technology of Hanoi (USTH), 18 Hoang Quoc Viet, Cau Giay, Ha Noi, Viet Nam * Email: , Received: 25 February 2016; Accepted for publication: 24 October 2016 ABSTRACT In the context of the incessant development of sustainable energy and ICT (Information and Communications technology) in power systems, power system becomes more and more intelligent, efficient and economic. However, using electrical infrastructure carrying information communication causes complexities in modeling and simulating. To overcome the problem of modeling, a new approach based on scale invariance theory, scale invariance, is presented in many papers and in various fields. Scale invariance method shows a strong link between a network topology and its performances through a coefficient exponent. In this paper we propose to use this method for modeling power line communication by considering only the input impedance of system. This approach will be tested for not only a general case study but also for an opened circuit without attenuation and bruit. The result is compared with the classical method. Keywords: frequency modelling, power line communication; fractal, scale inariance; power networks, power law. 1. INTRODUCTION Since the 90s, the notion of complex system is formed and replaced for classical simple system. The complex .