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독립형 마이크로그리드의 계통안정을 위한 디젤발전기 적정 출력용량산정

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Alternative Title
Estimating the Appropriate Output of Diesel Generator for Stability of Off-grid Type Microgrid
Abstract
This thesis proposes a stable operation method for off-grid microgrid by
estimating the appropriate output and operating plan of diesel generator. In
this case, diesel generator is employed as a main power source. The output
power of diesel generator is estimated by comparing between predictive
power demand load and renewable energy generation that can be achieved
from forecasting and past weather data.
In the microgrid, the function of energy storage system(ESS) is to balance
the electric power between power generation sources and power demand load
by charging/discharging operation. If a state of charge(SOC) of battery
exceeds the normal range, the microgrid will be unstable. Accordingly, the
output power of diesel generator will be immediately regulated based on the
SOC of battery in order to make a power balancing of the microgrid.
To verify effectiveness of estimated output power of diesel generator, the
model of microgrid designed in Chuja Island is chosen as a case study. The
proposed method is considered in three cases;
1) Analyzing the operation characteristics of the microgrid during one day
and one year period by using the PSCAD/EMTDC simulation program
and MATLAB program, respectively.
2) Analyzing the penetration limit rate of renewable energy sources and
comparing to a microgrid which ESS is always used as a main power
source.
3) Analyzing variation of the frequency and voltage under grid fault
condition and comparing to a microgrid which ESS is always used as a
main power source.
Author(s)
이승민
Issued Date
2016
Awarded Date
2016. 8
Type
Dissertation
URI
http://dcoll.jejunu.ac.kr/jsp/common/DcLoOrgPer.jsp?sItemId=000000007655
Alternative Author(s)
Lee, Seung Min
Department
대학원 풍력공학부 풍력전기·제어시스템전공
Advisor
김호민
Table Of Contents
LIST OF FIGURES ⅲ
LIST OF TABLES ⅴ
SUMMARY ⅵ
Ⅰ. 서 론 1
Ⅱ. 마이크로그리드용 디젤발전기 출력용량 산정 3
2.1 마이크로그리드용 분산전원 설비 3
2.2 기상 예측정보 기반의 디젤발전기 적정 출력용량 산정 5
Ⅲ. 마이크로그리드 컴퓨터 해석 12
3.1 마이크로그리드 모델링 12
3.2 마이크로그리드 컴퓨터 해석 24
3.3 결과 및 고찰 40
Ⅳ. 결 론 43
참 고 문 헌 45
Degree
Master
Publisher
제주대학교 대학원
Citation
이승민. (2016). 독립형 마이크로그리드의 계통안정을 위한 디젤발전기 적정 출력용량산정
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Faculty of Wind Energy Engineering > Wind Power Electricity and Control System Engineering
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