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장성덕(Sung-Duck Jang),손윤규(Yoon-Gyu Son),오종석(Jong-Seok Oh),권오정(O-Jung Kwon) 한국산업융합학회 2001 한국산업융합학회 논문집 Vol.4 No.3
The application of a pulsed power system is being extended to a environmental and industrial fields. The non-dissolution waste water pollutants from industrial plants can be processed by applying high voltage pulses with a fast rising time (a few nanoseconds) and short duration (nano to microseconds) in a pulsed corona discharge reactor. The nano-pulse generator with a magnetic switch has been developed. Its corona current in load can be adjusted by pulse width and repetition rate. we investigated the performance of the nano-pulse generator using the dummy load which is composed of resistor and capacitor equivalent to the actual reactor. This paper descibes the electrical characteristics of the nano-pulse generator that produces a 300 ns pulse at maximum repetition rate of 400 pps with a voltage of 40 kV across a 640 Ω load. In this paper we briefly discuss a configuration of system and test results.<br/>
손윤규(Son, Yoon-Gyu),서재학(Suh, Jae-Hak),권세진(Kwon, Sei-Jin),장성덕(Jang, Seung-Duck),오종석(Oh, Jong-Seok),황진수(Hwang, Jin-Su),강신일(Kang, Sin-Il),박가우(Park, Ga-Woo),권오정(Kwon, O-Jung),정진화(Chung, Chin-Hwa),한경섭(Han, 한국신재생에너지학회 2005 한국신재생에너지학회 학술대회논문집 Vol.2005 No.06
The 800-kW PM (permanent magnet) synchronous generator is developed as a wind power generator. The matching converter is designed to control the torque and power depending on the wind speed regime. The generator starts to generate the power at the speed of 9 rpm and the rated output is generated at the speed of 25 rpm. The rated output power of an inverter is 750 kW when the PM synchronous generator is delivering 800 kW to the inverter. The inverter is specially designed to perform the maximum power point tracking (MPPT) at the low wind speed regime that is typical wind environment in Korea. The inverter test was done with a 2 MW M-G system at KERI (Korea Electric Research Institute). The M-G set has a 2 MW motor driver and a 38:1 gear to match the speed between the motor and the PM generator. The torque simulating the wind is applied to the PM generator by a DC motor. The test results show the inverter efficiency of 94.3% at the rated power generating condition. The measured values show that the MPPT algorithm is working well. Overall reliability will be verified through the long-term site test.
750-kW풍력발전기 개발을 위한 모의시험 장치의 시험
권세진(Kwon, Seijin),손윤규(Son, Yoon-Gyu),서재학(Suh, Jae-Hak),이월우(Lee, Woul-Woo),장성덕(Jang, Sung-Duk),오종석(Oh, Jong-Seok),황진수(Whang, Jin-Su),강신일(Kang, Sin-Il),권오정(Kwon, O-Jung),정진화(Chung, Chin-Wha),한경섭(Han, Ky 한국신재생에너지학회 2005 한국신재생에너지학회 학술대회논문집 Vol.2005 No.06
풍력을 이용한 풍력발전기의 전력변환 시스템을 개발하기 위해서는 바람의 특성을 정확히 분석하고 이를 대치할 수 있는 모의시험 장치인 시뮬레이터가 필수적이다. 모의시험 장치는 풍향 풍속등의 인자들을 입력받아 회전자 블레이드의 토오크를 전동기가 대신해서 발전기에 공급하게 된다 본 논문에서는 풍력발전 모의시험 장치를 이용하여 750-kW gearless형 풍력발전기의 축소모델인 20-kW 모델 발전기와 고효율의 전력변환 장치 설계 및 인버터 특성을 위한 시험용 지그에서의 시험한 결과를 보이고자 한다.