초록 ▼

○ 풍력발전단지 출력제어시스템 기능분석 및 알고리즘 개발
- 풍력발전단지 운영관점의 기술적 요구사항 분석
- 풍력발전단지 출력제어 기능정의 및 알고리즘 개발
- 풍력발전기 정출력 운전특성 해석모델 개발
- PSCAD/EMTDC 모델링 및 시뮬레이션
○ 풍력발전단지 출력제어시스템 시제품 개발
- 출력제어시스템 세부 제작사양 정의
- 출력제어시스템 H/W 플랫폼 구축 및 S/W 개발
- 출력제어 알고리즘 구현 및 검증
: 유무효 Set-point 제어, 주파수/전압 Droop, 출력변동율

○ 풍력발전단지 출력제어시스템 기능분석 및 알고리즘 개발
- 풍력발전단지 운영관점의 기술적 요구사항 분석
- 풍력발전단지 출력제어 기능정의 및 알고리즘 개발
- 풍력발전기 정출력 운전특성 해석모델 개발
- PSCAD/EMTDC 모델링 및 시뮬레이션
○ 풍력발전단지 출력제어시스템 시제품 개발
- 출력제어시스템 세부 제작사양 정의
- 출력제어시스템 H/W 플랫폼 구축 및 S/W 개발
- 출력제어 알고리즘 구현 및 검증
: 유무효 Set-point 제어, 주파수/전압 Droop, 출력변동율 제한, REC 차등가중치 반응 Energy Shift
○ 성능검증용 HILS 시스템 개발
- RTDS기반 실시간 디지털 시뮬레이터 H/W Platform 구축
- 100MW급(WT 5MW * 20기) 풍력발전단지 RTDS 실시간 해석모델 개발
- 출력제어시스템 및 RTDS 시뮬레이터 상호간 통신 인터페이스 모듈 개발
- 출력제어시스템 연계 및 성능시험
○ 축소형 풍력발전단지 파일럿 플랜트 구축
- 파일럿 플랜트 구성(안) 검토 및 수립
- 15kW급 풍력발전기 모의장치 설계, 제작, 기능시험
- 풍력발전단지 내부 전력망 모의반 설계 및 제작
- 150kW급 (WT 15kW * 10기) 축소형 풍력발전단지 파일럿 플랜트 구축

Abstract ▼

As fossil fuel energy has been exhausted and global warming issue keeps going critical,renewable energy attracts more attention. Among the renewable energy, wind energy has been significantly increasing all over the world. The increasing of wind energy can give various benefits such as CO2 reduction

As fossil fuel energy has been exhausted and global warming issue keeps going critical,renewable energy attracts more attention. Among the renewable energy, wind energy has been significantly increasing all over the world. The increasing of wind energy can give various benefits such as CO2 reduction and peak demand cutting. However, high penetration of unregulated WPPs(Wind power plants) has significant bad effect on power system stability. Hence, the power system operators in many centuries such as Denmark, Germany, Spain, and so on requires grid code for a WPGS(Wind power generation system) or WPP.According to general grid codes, capability for controlling active power and reactive power in point of common coupling (PCC) should be needed, which is implemented by WPP-EMS(Energy Management System). WPP-EMS is a supervisory control system for WPP, which has remote data acquisition and control functionalities. Through this research project, the prototype WPP-EMS has been developed, which consists of the hardware platform and operation software. The hardware platform of WPP-EMS is based on six PCs, which are mounted two racks. The operation software is composed of a SCADA/DB module, human-machine interface(HMI) module and a control algorithm module. In SCADA/DB module, DNP 3.0 protocol and modbus TCP are applied to communicate with each WPGS in every second. The HMI module gives the operating status of WPP and operator can select control parameters through this HMI module. The various control algorithms are implemented by C++ language.For applying the WPP-EMS into real WPP, WPP-EMS has to be evaluated and validated before going to field. However, it is very difficult to test the WPP-EMS because of security problem of the power system. The hardware-in-the-loop simulation (HILS) is a technique used to develop and test complex, real-time embedded systems. The HILS technique has merits of reduction of development cost and build-up time.
In this project, an HILS system using a RTDS as a new test approach to evaluate performance of WPP-EMS. A 100 MW wind power plant which is composed of ten 5 MW WPGSs is modeled and simulated in RSCAD/RTDS. The HILS test results show the proposed method can be effectively utilized to validate control functions of WPP-EMS. In addition, we developed small scale WPP pilot plant which consists of eleven 15kW WPGSs simulator, distribution line simulator, and substation facility. This pilot plant can be utilized as a test bed for HVDC system, FACTS devices, and WPP-EMS.