한국조명전기설비학회:학술대회논문집 (Proceedings of the Korean Institute of IIIuminating and Electrical Installation Engineers Conference)
- 한국조명전기설비학회 2004년도 춘계학술대회 논문집
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- Pages.353-357
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- 2004
고압수전설비의 고조파에 관한 대책
The Countermeasure about Harmonics of the High Voltage Power Facilities
- Kim, Ju-Chan (Kyungnam Univ.) ;
- Sin, Su-Han (Kyungnam Univ.) ;
- Lee, Chung-Sik (Daewon Science College) ;
- Koh, Hee-Seog (Kyungnam Univ.)
- 발행 : 2004.05.07
초록
This paper presents the result of survey of case study for harmonics in electrical installations of buildings. Recently, many power electronic equipments(power converter, computers, air conditioners electronic ballasts for fluorescent lamps and so on) are used in office buildings, and harmonic current from them influence the other equipments in a distribution line. Notably, voltage distortion or voltage harmonics may approach or exceed is allowable level in power distribution system. Individual electric power consumers and end-users and responsible for reducing current harmonics while companies or utilities are responsible for reducing voltage harmonics at the point of common coupling in distribution system. As for harmonics, which one of the electric power qualities, it becomes important to obtain harmonic voltage/current distribution of the power system precisely because the use of power electronic apparatus in increasing. To suppress harmonics in electrical ins tallations of buildings, one of many methods suggest that resonance frequencies are controlled by modulating the capacities of high-voltage customer's capacitors.
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