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전압형 HVDC 송전 시스템의 동적모델링 및 전압제어

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Alternative Title
Dynamic Modeling and Voltage Control of VSC HVDC Transmission Systems
Abstract
This thesis is devoted to a study on dynamic modeling and voltage control based on HVDC transmission system and wind farm. The main subjects are the modeling of HVDC and wind farm, control of voltage at the PCC, and
simulation. The main contribution of the modeling work is the development of component models for a flexible simulation tool that enables analysis of various
wind-HVDC hybrid system configurations. The component models are developed at an equal level of complexity, which are appropriate for voltage control. The models should be accurate enough to predict power quality in
terms of voltage deviations at the PCC(point of common coupling). The proposed model framework is flexible, and can easily be extended to represent a general electrical network topology, and to include other renewable energy
sources such as photovoltaic, etc.
The design of voltage control is a development of a new type of the hybrid control that is made up of HVDC, wind farm, grid, and local load. This contributes an optimization approach for finding the optimal operations that are usually chosen by trial and error. In the simulation studies, three different cases of operations of the wind-HVDC hybrid power system are performed: local load variation, wind farm trip from the grid, and fault in the TL between the wind farm and local load.
In the simulation study, it shows that the HVDC is able to support actively the grid due to its capability to control independently active and reactive power production, a reactive power control is presented in order to regulate/contribute the voltage at a remote location with taking into account its operating state and limits.
Author(s)
이진재
Issued Date
2014
Awarded Date
2014. 8
Type
Dissertation
URI
http://dcoll.jejunu.ac.kr/jsp/common/DcLoOrgPer.jsp?sItemId=000000006809
Alternative Author(s)
Jin Jae Lee
Department
대학원 에너지응용시스템학부 전기공학전공
Table Of Contents
1. 서 론 1
2. HVDC 송전 시스템 모델링 및 구성 3
2.1 풍력발전단지 모델링 4
2.1.1 기계적 구성요소 5
2.1.2 전기적 구성요소 6
2.2 송전선로 모델링 7
2.3 HVDC 송전 시스템 모델링 9
3. HVDC 송전 시스템의 전력제어 12
3.1 HVDC 송전 시스템 제어 12
3.2 HVDC 송전 시스템의 무효전력제어 14
4. 시뮬레이션 17
4.1 시뮬레이션 모델 구성 17
4.2 단위역률제어 25
4.2.1 부하 변동 25
4.2.2 풍력발전단지 탈락 26
4.2.3 풍력발전단지와 부하 간 송전선로 고장 28
4.3 무효전력제어 30
4.3.1 부하 변동 31
4.3.2 풍력발전단지 탈락 32
4.3.3 풍력발전단지와 부하 간 송전선로 고장 33
4.4 시뮬레이션 결과 및 고찰 34
5. 결론 37
참 고 문 헌 38
감사의 글 44
Degree
Master
Publisher
제주대학교 대학원
Citation
이진재. (2014). 전압형 HVDC 송전 시스템의 동적모델링 및 전압제어
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Faculty of Applied Energy System > Electrical Engineering
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