# 제주대학교 Repository

### 제주지역 제 3 연계선 도입을 위한 MMC-HVDC 시스템 모델링

Alternative Title
MMC-HVDC System Modeling for the Installation of HVDC No.3 in Jeju Island
Abstract
Wind power is now one of the most promising resources in renewable
energy. However, it has to be limited to install the wind turbines because the
power system can be negatively influenced by a variable and uncertain nature
of the wind energy.
This paper presents a method for calculating the wind power marginal
capacity in Jeju Island in 2020. A MMC-HVDC system is suggested to
increase the capacity of wind farms. The advantages of the MMC-HVDC
system over other VSC-HVDC system are low harmonic, large power
capacity and high reliability.
For the computer simulations, MMC-HVDC, wind farm, thermal plants and
STATCOMs are modeled. To analyze the effect of the MMC-HVDC system
to the wind farm in Jeju Island, three kinds of scenario are applied to the
1) 400 MW wind farm is in an unexpected fault from the Jeju power grid
2) the steady state operation under the variable speed wind
3) black-start by using MMC-HVDC system under the blackout in Jeju
power system
These studies will be useful to analyze the quality of Jeju power system
considering the effects of MMC-HVDC system at the wind farm. Moreover,
the MMC-HVDC system which will be installed in Jeju Island in 2020 is also
an effective method to increase the reliability of the Jeju power system with
large scale wind farms.
Author(s)
Issued Date
2014
Awarded Date
2014. 8
Type
Dissertation
URI
http://dcoll.jejunu.ac.kr/jsp/common/DcLoOrgPer.jsp?sItemId=000000006740
Alternative Author(s)
Department
1. 서 론 1
2. MMC-HVDC 시스템의 모델링과 해석 3
2.1 MMC의 구성 5
2.2 하위모듈 동작원리 및 MMC 수학적 모델 7
2.3 MMC 시스템의 출력전압 10
2.4 변조 방법 12
2.5 하위모듈 전압 균등 알고리즘 13
2.6 제어이론 및 모델링 14
2.7 시뮬레이션 18
3. 시뮬레이션 및 결과 고찰 23
3.1 2020년 제주계통 전망 및 모델링 23
3.2 시나리오 별 계통 시뮬레이션 28
3.3 결과 고찰 36
4. 결 론 37
참고문헌 38
Degree
Master
Publisher
제주대학교 대학원
Citation
고지한. (2014). 제주지역 제 3 연계선 도입을 위한 MMC-HVDC 시스템 모델링
Appears in Collections:
Interdisciplinary Programs > Multidisciplinary Graduate School Program for Wind Energy