A sensitivity analysis about reactive power supply of wave-offshore hybrid generation system

Abstract

Background/Objectives Recently designed hybrid power generation system (HGS) not only takes into account voltage conditions of grid connection points, but also supports reactive power according to the instructions of transmission system operators.

Methods/Statistical analysis: The operation plan for conversion device of HGS should be supported by accurate effect estimation regarding reactive power. The system has a large physical area and is interconnected with the grid through a long power transmission system. Therefore, it is necessary to consider an additional compensation plan in the realistic measurement process of the transmission reactive energy using HGS.

Findings: In this paper, the reactive power transfer capability of HGS with expected parameters is analyzed and imposed on the simulation process performed in EMTDC environment. The analysis based on the specific configuration of HGS. Thereby, the composition is introduced and performed through PSCAD/EMTDC by using JEJU Island information which is operated in South Korea.

Improvements/Applications: Basically, grid information and system characteristics are used on Jeju Island in Korea, and performance analysis is performed based on the layout composed of ongoing projects.

Keywords: hybrid generation system, tidal energy, renewable generators, reactive power support, power conversion system