Comparative cost analysis of VSC-HVDC and HVAC as transmission system for a 50 MW offshore wind farm in Hatiya Island

Abstract

Hatiya is an off-grid island located in the southern coastal area of Bangladesh. Though the island has potential renewable energy resources, it lacks the connection to the national grid. In this paper, the analysis of wind energy resources with the design of an offshore wind farm for this island is presented. This paper explores the opportunities of transmitting the power generated from the wind farm to the national grid by High Voltage Alternating Current (HVAC) and High Voltage Direct Current (HVDC) transmission. In this case, a cost comparison is made for both transmission systems. Break-even distance analysis is performed to determine which transmission system will be a more suitable and cost-effective technology for this project.