DocumentCode :
1298631
Title :
Dynamic Stability Analysis of a Tidal Power Generation System Connected to an Onshore Distribution System
Author :
Wang, Li ; Li, Chao-Nan
Author_Institution :
Dept. of Electr. Eng., Nat. Cheng Kung Univ., Tainan, Taiwan
Volume :
26
Issue :
4
fYear :
2011
Firstpage :
1191
Lastpage :
1197
Abstract :
This paper presents the analyzed results of both dynamic simulations and steady-state performance of a tidal power generation system (TPGS) containing a permanent-magnet synchronous generator (PMSG) driven by a tidal turbine through a gearbox. The stator windings of the tidal PMSG are connected to an onshore distribution system through an ac-to-dc converter, a dc-to-ac inverter, a step-up transformer, and a transmission cable. A d-q axis equivalent-circuit model is employed to establish complete dynamic equations of the studied system under three phase balanced loading conditions. A frequency-domain approach based on eigenvalue analysis and a time-domain scheme based on nonlinear-model simulations are both carried out to systematically determine the dynamic stability of the studied system under different operating conditions. It can be concluded from the simulation results that the studied TPGS subject to different disturbance conditions can maintain stable operation.
Keywords :
AC-DC power convertors; DC-AC power convertors; distribution networks; eigenvalues and eigenfunctions; frequency-domain analysis; gears; hydraulic turbines; invertors; permanent magnet generators; power cables; power system dynamic stability; power transmission lines; stators; synchronous generators; tidal power stations; time-domain analysis; PMSG; TPGS subject; ac-to-dc converter; complete dynamic equation; d-q axis equivalent circuit model; dc-to-ac inverter; dynamic simulation; dynamic stability analysis; eigenvalue analysis; frequency-domain approach; gearbox; nonlinear model simulation; onshore distribution system; operating condition; permanent magnet synchronous generator; stator winding; steady state performance; step-up transformer; three phase balanced loading condition; tidal power generation system; tidal turbine; time-domain scheme; transmission cable; Eigenvalues and eigenfunctions; Inverters; Mathematical model; Permanent magnet motors; Power generation; Stability analysis; Wind turbines; Dynamic stability; eigenvalue; nonlinear-model simulations; permanent-magnet synchronous generator (PMSG); tidal power generation system (TPGS); tidal turbine (TT);
fLanguage :
English
Journal_Title :
Energy Conversion, IEEE Transactions on
Publisher :
ieee
ISSN :
0885-8969
Type :
jour
DOI :
10.1109/TEC.2011.2161869
Filename :
5985513
Link To Document :
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