A STUDY ON THE ANNUAL CAPACITY FACTOR FOR A TIDAL CURRENT POWER GENERATION SYSTEM USING THE CONTROL SCHEME OF CONSTANT ROTOR VOLTAGE

Abstract

Methods for generating electricity from renewable energy sources are of growing interest for achieving a stable energy supply and as countermeasures against climate change. Tidal current power generation systems with variable speed operation are now gaining attention for their high efficiency in converting tidal energy to electrical energy. The tidal current power generation system we have investigated employs a variable-speed DFIG. We investigated the annual capacity factor when the generated maximum current speed was changed for the tidal current power generation system using the control scheme of constant rotor voltage. As a result, the annual capacity factor reached 35.16% at maximum.