Dynamic Stability Analysis of a Grid-Connected Solar-Concentrated Ocean Thermal Energy Conversion System

Author

Wang, Li ; Huang, Chen-Bin

Author_Institution

Dept. of Electr. Eng., Nat. Cheng Kung Univ., Tainan, Taiwan

Volume

1

Issue

1

fYear

2010

fDate

4/1/2010 12:00:00 AM

Firstpage

10

Lastpage

18

Abstract

This paper presents the dynamic-stability analyzed results of an offshore solar-concentrated ocean thermal energy conversion (SC-OTEC) system connected to an onshore power grid through undersea cables. The complete dynamic system equations of the studied SC-OTEC system are established under three-phase balanced conditions. A power system stabilizer (PSS) is designed using modal control theory to offer adequate damping characteristics for the synchronous generator of the studied SC-OTEC system. Steady-state characteristics of the studied system under different operating conditions and dynamic simulations of the studied system subject to different disturbances are both carried out. It can be concluded from the simulation results that the designed PSS can effectively enhance damping of the studied grid-connected SC-OTEC system under various disturbance conditions.

Keywords

ocean thermal energy conversion; power system dynamic stability; solar energy concentrators; solar power stations; submarine cables; synchronous generators; damping characteristics; disturbance condition; dynamic stability analysis; grid-connected solar-concentrated ocean thermal energy conversion system; modal control theory; offshore SC-OTEC system; onshore power grid; power system stabilizer; synchronous generator; undersea cables; Dynamic stability; power system stabilizer (PSS); solar-concentrated ocean thermal energy conversion (SC-OTEC);

fLanguage

English

Journal_Title

Sustainable Energy, IEEE Transactions on

Publisher

ieee

ISSN

1949-3029

Type

jour

DOI

10.1109/TSTE.2010.2046189

Filename

5434654