The natural resources still available in several countries, including Brazil, are located far from the main load centers. Among the alternatives considered for long distances transmission is the transmission in a little more than half wavelength (HWL+), here called AC-Link. Aiming to contribute to the viability of this alternative, this paper presents the main results related to the energization of the AC-Link, with special considerations to the occurrence of single-phase fault along the trunk.
The study considered the series connection of an actual 500 kV line sections from the Brazilian system, forming a 2600-km long AC-Link. To evaluate the AC-Link behavior, simulations were performed by energizing the no-load trunk with and without the presence of defect.
The simulations were performed with ATP.
M.A. Paz, M. C. Tavares, Presented at the International Conference on Power Systems Transients (IPST2013) in Vancouver, Canada July 18-20, 2013. Paper #: 13IPST110
KEYWORDS: Half-wavelength transmission, AC-Link, electromagnetic transient, single-phase faults