• 한국수소및신에너지학회논문집
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• 제14권2호
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• pp.171-176
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• 2003

The propeller type hydro turbine model with vertical axis has been tested and analyzed. The blade angle of turbine model were designed to be varied according to the condition of head and flowrate. When the changes in head and output were comparatively large, the efficiency drop were small, so the efficiency characteristics and stability of the entire operating condition were maintained in good condition. These results showed that the developed model in this study will be suitable for small hydro power stations with large changes in head and load such as sewage treatment plants and agricultural reservoirs.

• 전기저널
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• 12호통권72호
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• pp.36-37
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• 1982

• 한국융합학회논문지
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• 제6권1호
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• pp.29-34
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• 2015

점차 스마트그리드 기술이 발전됨에 따라서 에너지의 효율성에 이목이 집중되고 있다. 그래서 스마트그리드를 구성하고 있는 마이크로그리드 내의 에너지를 독립적으로 관리하기 위해서는 신재생에너지에 대한 연구를 필요로 한다. 그중에서도 소수력 에너지는 마이크로그리드내의 사용자가 사용하는 물의 양에 따라서 그 어디에도 설치 할 수 있는 장점을 가지고 있다. 사용자들이 주거하는 아파트, 공동주택에서 사용하고 있는 하수량을 기반으로 전기 발전량과 발전기의 가동률을 측정하여 측정값이 소수력 발전에 적합한지 알아본다. 적합한 아파트, 공동주택에서는 위치에너지를 활용하여 발생한 하수를 소수력 발전기로 전기를 생산 한다. 마이크로그리드의 에너지 관리 시스템과 전기 저장 장치를 도입하여 보다 효율적인 관리를 제안하고자 한다.

• 한국신재생에너지학회:학술대회논문집
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• 한국신재생에너지학회 2007년도 추계학술대회 논문집
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• pp.678-681
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• 2007

Now Korea depends upon the imported resources for about 97% of total using energy. So from October, 2001 Korean government has supported renewable energy business owners by providing them with Electric Power Industry Basis Fund. Only plant-use electricity of the small hydro power plant is exactly managed, but other renewable energy plants is unprepared or not yet managed. Therefore, in this paper, we'll analyze the plant-use electricity management of the small hydro power and propose improvement plans for plant-use electricity of the photovoltaic power plant.

• 한국수소및신에너지학회논문집
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• 제14권1호
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• pp.61-68
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• 2003

This paper presents the methodology to analyze flow duration characteristics and performance prediction technique for small hydro power(SHP) Plants and its application. The flow duration curve can be decided by using monthly rainfall data at the most of the SHP sites with no useful hydrological data. It was proved that the monthly rainfall data can be characterized by using the cumulative density function of Weibull distribution and Thiessen method were adopted to decide flow duration curve at SHP plants. And, the performance prediction technique has been studied and development. One SHP plant was selected and performance characteristics was analyzed by using the developed technique, Primary design specfications such as design flowrate, plant capacity, operational rate and annual electricity production for the SHP plant were estimated, It was found that the methodology developed in this study can be a useful tool to predict the performance of SHP plants and candidate sites in Korea.

• 한국소음진동공학회:학술대회논문집
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• 한국소음진동공학회 2007년도 춘계학술대회논문집
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• pp.453-456
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• 2007

The purpose of this study is to explain the importance of Vibration Monitoring Device by introducing an example of Predictive Maintenance System using Condition Monitoring System of Hydro-turbine generator. Confirming vibration of generation equipment is commissioning procedure during equipment completion for checking guaranteed items. Data from Generator output range are used to determine output band to continue the performance of equipment. The Vibration Monitoring System is not absolute method of maintenance, but if it is used well with expert, it will be visible, data-analyzed, scientific maintenance more than others. And also, Condition Monitoring System is very important for remote controlled small hydro-power plant although most of it is installed in Large hydro-power plant.

• 유체기계공업학회:학술대회논문집
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• 유체기계공업학회 2006년 제4회 한국유체공학학술대회 논문집
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• pp.57-60
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• 2006

The purpose of this study is to explain the importance of Vibration Monitoring Device by introducing an example of Predictive Maintenance System using Condition Monitoring System of Hydro-turbine generator. Confirming vibration of generation equipment is commissioning procedure during equipment completion for checking guaranteed items. Data from Generator output range are used to determine output band to continue the performance of equipment. The Vibration Monitoring System is not absolute method of maintenance, but if it is used well with expert, it will be visible, data-analyzed, scientific maintenance more than others. And also, Condition Monitoring System is very important for remote controlled small hydro-power plant although most of it is installed in Large hydro-power plant.

• 한국유체기계학회 논문집
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• 제13권1호
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• pp.29-34
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• 2010

The purpose of this study is to explain the importance of Vibration Monitoring Device by introducing an example of Predictive Maintenance System using Condition Monitoring System of Hydro-turbine generator. Confirming vibration of generation equipment is commissioning procedure during equipment completion for checking guaranteed items. Data from Generator output range are used to determine output band to continue the performance of equipment. The Vibration Monitoring System is not absolute method of maintenance, but if it is used well with expert, it will be visible, data-analyzed, scientific maintenance more than others. And also, Condition Monitoring System is very important for remote controlled small hydro-power plant although most of it is installed in Large hydro-power plant.

• 한국해안해양공학회지
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• 제18권4호
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• pp.338-347
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• 2006

삼천포 화력발전소에서는 냉각수로 이용되고 방류되는 해수를 이용한 소수력 발전소가 건설되고 있다. 소수력 발전소는 발전량을 최대화하기 위해서는 규모를 크게 하는 것이 바람직하나, 소수력 발전소가 방류수로의 기능을 저해하지는 않는 범위에서 결정하여야 하기 때문에 적정규모를 결정하기 위해서는 수리학적인 고려가 필요하다. 본 연구에서는 현재 방류수로의 흐름특성 자료를 이용하여 3차원 흐름모형인 FLOW3D모형을 구축하고, 구축된 모형을 이용하여 소수력 발전소의 규모에 따른 방류수로 상류 지점의 수위 증가 양상을 예측하였으며, 발전소 건설에 따른 흐름변화 양상도 분석하였다 삼천포 소수력발전소 건설은 상류의 수위증가를 유발하며, 설계유량 156톤/초, 발전소 가동보 높이 3.8 m 기준에 대한 방류수로 Weir 상류지점의 수위는 4.97 m로 현 상태 4.32 m 보다 65 cm 정도 증가하는 것으로 파악되었다.

• 전기학회논문지
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• 제62권5호
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• pp.632-638
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• 2013

In this study, we described voltage fluctuation characteristics of distribution line during starting and normal operation condition of the small hydro generators. Based on these theories, we scrutinized the starting and operating characteristics of induction generators installed in two small hydro power plants that is connected to the distribution line and researched necessary factors when selecting the generator type. The type of turbines and capacity of generators are different. One is below 1,000kW and the other is above 1,000kW. Two generators are tested during starting, and it acts as motor not generator at the instant that the machine is connected to the grid. After connecting to the grid, the machine rotates above synchronous speed before converting to the generator mode. Therefore the characteristic of the generator during starting is same as it of motor.