Comparative analysis of ring bus and breaker-and-a-half switchyard configuration of Burgos Wind Farm, Ilocos Norte, Philippines using ETAP 11.1.1 done by EDC

Date

5-2016

Degree

Bachelor of Science in Electrical Engineering

Major Course

Major in Power Engineering

College

College of Engineering and Agro-Industrial Technology (CEAT)

Adviser/Committee Chair

Elvin D Dulce

Abstract

Burgos Wind Farm, owned by Energy Development Corporation (EDC), has ring bus system as its current switchyard configuration for its two-wind farm configuration with 75 MW capacity for each wind farm. The company is planning to reconfigure the system to a three-wind farm configuration with 50 MW capacity for each wind farm for better power output efficiency. Along with the addition of a wind farm, the company is planning to upgrade the switchyard to a breaker-and-a-half configuration. Load flow analysis and short-circuit analysis for three intermittency levels (arbitrary minimum, normal condition and full power) using ETAP 11.1.1 are conducted to analyze the total power output efficiency for both configurations. With a total power output difference (breaker-and-a-half output minus ring bus output) of 49.8 MW, 30 MW, and 14.9 MW at full power, normal condition, and arbitrary minimum capacity respectively, it turns out that breaker-and-half configuration has an advantage over ring bus system when it comes to power output when a main bus is isolated during a main bus fault. Also, the load requirement of Wholesale Electricity Spot Market (WESM) to Burgos Wind Farm that has a bandwidth of 40 MW to 90 MW, is fully provided by the breaker-and-a-half system which has a minimum output of 44.9 MW at isolated main bus fault, compared to the minimum output of 30 MW of the ring bus system. Cost-benefit analysis considering protection costing and energy prices by the use of benefit/cost ratio method is also conducted to determine cost efficiency. From the result of benefit-cost ratio method, the benefit-cost ratios of breaker-and-a-half system are 47.29, 28.43, and 14.21 for full power, normal condition, and arbitrary minimum capacity respectively. These values are all larger compared to ring bus system's benefit cost ratios that have values of 41.22, 24.75, and 12.42 for full power, normal condition, and arbitrary minimum capacity respectively considering a period of one year. Thus, breaker-and-a-half system is considered more cost-efficient.

Language

English

Location

UPLB College of Engineering and Agro-Industrial Technology (CEAT)

Call Number

LG 993 2016 E64 N66

Document Type

Thesis

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