4.6 Article

Three-Phase-Two-Wire Rural Distribution Network: Influence of Design Characteristics on Voltage Unbalance

Journal

IEEE TRANSACTIONS ON POWER DELIVERY
Volume 38, Issue 1, Pages 620-630

Publisher

IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TPWRD.2022.3196602

Keywords

Impedance; Conductors; Voltage; Resistance; Power cables; Transformers; Wires; Unconventional rural distribution system; power quality; voltage unbalance; three-phase electric power; power distribution

Ask authors/readers for more resources

SWER systems are inadequate for power distribution in remote areas with low density load due to the growing demand and three-phase loads. The TPTW system, which uses the ground as a conductor, is proposed as a low-cost alternative for repowering the SWER system. A method to reduce voltage unbalance by selecting the correct spacing between TPTW system overhead conductors is presented. The method eliminates the need for reactive series compensation and reduces working time and installation costs.
Power distribution in remote areas with low density load is usually performed with Single Wire Earth Return (SWER) systems. These systems have been shown to be insufficient to meet not only the growing demand but also three-phase loads. The Three-Phase-Two-Wire (TPTW) system is a non-conventional low-cost alternative system for repowering the SWER, as both of them use the ground as conductor. The TPTW system is inherently unbalanced and may have greater voltage drops than a conventional three-phase system. This paper proposes a method to decrease voltage unbalance by choosing the correct spacing between of TPTW System overhead conductors. Additionally, the method eliminates the need for reactive series compensation and reduces working time and installation costs. TPTW System performance was evaluated for different conditions and designs such as cable type, spacing, length and passive compensation. The results show that optimal spacing can be reached among cables, and viable supply can be offered for distant loads with relatively low voltage unbalance.

Authors

I am an author on this paper
Click your name to claim this paper and add it to your profile.

Reviews

Primary Rating

4.6
Not enough ratings

Secondary Ratings

Novelty
-
Significance
-
Scientific rigor
-
Rate this paper

Recommended

No Data Available
No Data Available