Design of Static Synchronous Compensator under different loads in a Grid-connected Induction Generator
Date Issued
2007
Date
2007
Author(s)
Sher, Wen-Tan
DOI
zh-TW
Abstract
Due to the rise in oil price and the need to reduce carbon dioxide in order to alleviate the greenhouse effect, green energy such as wind-power electricity generation received much attention in recent years. Because the speed of the wind is not regular in wind-power electricity generation, induction machines are often used.
The purpose of this thesis is to design and analyze the static synchronous compensator (STATCOM) which regulates the voltage of an induction generator system. With a direct current capacitor to offer the voltage source, a three-phase voltage source type converter is designed using a pulse-width modulation (PWM) technique in order to reach voltage compensation and control. Simulations are conducted using the software of Matlab_simulink. Both the steady-state performance and the transient characteristic of the system subject to the disturbances of step load change, and induction motor starting, and continuous load fluctuations are investigated in the thesis. Simulation and experimental results reveal that the system voltage can really be stabilized by the proposed static synchronous compensator. It is a very efficient manner when the system is subjected to various disturbances.
Subjects
靜態同步補償器
感應發電機互聯電力系統
負載增加
負載變動
static synchronous compensator
grid-connected induction generator
load increase
load fluctuations
Type
thesis