Modeling power transformers for the design of SWER line coupling networks

Kikkert, C.J. (2010) Modeling power transformers for the design of SWER line coupling networks. In: Proceedings of First IEEE International Conference on Smart Grid Communications. pp. 120-125. From: First IEEE SmartGrid Communications Conference, 4-6 October 2010, Gaithersburg, MD, USA.

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Many countries use Single Wire Earth Return Power (SWER) lines for providing power to customers in rural areas. These SWER lines can be up to 300 km long. For Smart Grid applications and power quality assurance on SWER lines, a communication system is required. Power Line Communications (PLC) signals in the 9 to 95 kHz CENELEC-A frequency band are the most economical means for providing this communication on SWER lines. To inject the PLC signals on the typical 19.1 kV SWER line, a low cost coupler is required. The behavior of SWER line power transformers at PLC frequencies is critical for the design of this coupling network. This paper describes the development of a wide frequency band model for SWER line power transformers and uses this model for the design of coupler networks. A novel technique is used to match the transformer model to measurements. This model matching technique and the resulting transformer model are also applicable to other power transformers.

Item ID: 16232
Item Type: Conference Item (Research - E1)
ISBN: 978-1-4244-6510-1
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Date Deposited: 12 May 2011 00:58
FoR Codes: 09 ENGINEERING > 0906 Electrical and Electronic Engineering > 090607 Power and Energy Systems Engineering (excl Renewable Power) @ 100%
SEO Codes: 89 INFORMATION AND COMMUNICATION SERVICES > 8901 Communication Networks and Services > 890101 Fixed Line Data Networks and Services @ 100%
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