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MATLAB/Simulink를 이용하여 유도형 풍력발전기 계통연계시 발생하는 돌입전류 제어
장은영(Jang, EunYoung),경남호(Kyung, NamHo),김홍우(Kim, HongWoo) 한국신재생에너지학회 2010 한국신재생에너지학회 학술대회논문집 Vol.2010 No.06
풍력발전 설비의 발전기로는 구조가 간단하고 견실한 유도형 발전기가 일반적으로 사용되고 있다. 풍력발전은 계통 연계시에 정격전류의 7~8배의 돌입전류가 흘러 발전저하를 무시하기 어렵다. 따라서, 돌입전류 억제 및 대책의 검토가 필요하다. 본 연구는 MATLAB/SIMULINK를 통해 유도기형 풍력발전기를 모델링 및 시뮬레이션하고, 유도기형 풍력발전기 계통연계시 발생하는 돌입전류를 저감하는 방법에 대해 살펴보았다.
배재성(Jae-Sung Bae),김성완(Sung-One Kim),윤정은(Joung-Eun Youn),경남호(Nam-Ho Kyung) 한국유체기계학회 2004 유체기계 연구개발 발표회 논문집 Vol.- No.-
Test facilities for the wind turbine performance monitoring and mechanical load measurements are installed in Vestas 100 ㎾ wind turbine in Wollyong test site, Jeju island The monitoring system consists of Garrad-Hassan T-MON system, telemetry system for blade load measurement, various sensors such as anemometer, wind vane, strain gauge, power meter, and etc. The experimental procedure for the measurement of wind turbine loads, such as edgewise(lead-lag) bending moment, flapwise bending moment, and tower base bending moment, has been established. Strain gauges are on-site calibrated against load cell prior to monitoring the wind turbine loads. Using the established monitoring system, the wind turbine is remotely monitored. From the measured load data, the load analysis has been performed to obtain the load power spectral density and the fatigue load spectra of the wind turbine.
공간고조파법을 이용한 풍력용 영구자석형 발전기의 전자기적 특성해석 및 제어정수 도출
장석명(Seok-Myeong Jang),최장영(Jang-Young Choi),조한욱(Han-Wook Cho),유대준(Dae-Joon You),경남호(Nam-Ho Kyung),윤기갑(Ki-Kab Yoon) 대한전기학회 2006 대한전기학회 학술대회 논문집 Vol.2006 No.7
Using the MATLAB/SIMULINK, this paper presents dynamic simulation model for 6㎿ wind power generation systems with the DFIG considering distribution systems and performs the dynamic analysis of wind power systems.
실내 기후동에서 개인형 국소냉방 장치의 기류 및 온도 분포해석
엄태인,장은숙,경남호,신기식,문승현,전영남,류창국 한밭대학교 생산기반기술연구소 2002 생산기반기술연구소 논문집 Vol.2 No.1
Numerical simulation is performed by the commercial code FLUENT for individual air condition system to calculate the velocity and temperature profiles around worker in climate room. The main calculation region is the space of ㄱ shape between wall and worker in the individual air condition system. The fresh air is emitted from 3 inlet attached on the right, left and center wall. Because the comfort of worker is closely related with the velocity and temperature of wind, these data are key role for design of the individual air condition system. This work is previous study for evaluation of thermal comfort of workers in room without much experiments according to metabolism and heat emission of human body. Numerical simulation results are as followings, 1. There is an possibility of the thermal comfort of worker is gotten worse due to the presence of dramatic change of wind velocity around worker. 2. Temperature gap exists in worker's body between top and bottom according to fresh air inlet velocity and position which is right, left and center of wall. 3. Calculation results of the skin temperature of worker are key data for evaluation of thermal comfort with experimental data in climate room. 4. Optimum condition of temperature, direction and velocity of fresh air will be obtain by numerical simulation for energy effective individual air condition system.