대한전기학회:학술대회논문집 (Proceedings of the KIEE Conference)
- 대한전기학회 2002년도 하계학술대회 논문집 D
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- Pages.2388-2390
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- 2002
부하변동에 속응하는 역률개선형 전력절감시스템
Electric energy saving system with high speed response to load variation using power-factor correction
- Kim, Tae-Soo (Taejon Polytech. Col.) ;
- Kang, Hyung-Sik (Chongju Polytech Col.) ;
- Joo, Kyung-Don (Youngdong Univ.) ;
- Lyu, Seung-Heon (Youngdong Univ.) ;
- Koo, Kyung-Wan (Youngdong Univ.) ;
- Han, Sang-Ok (Chungnam Nat'l Univ.)
- 발행 : 2002.07.10
초록
Small type electric energy saving system is proposed in this paper. The system improves power factor fastly according to load variation of each customer. Phases of voltage and current are detected as 1[ms] unit. Phase coincident algorithm is applied for power factor improvement. Capacitance is controlled for optimal power factor correction. Series reactor is controlled for harmonics reduction. Non-contact device is used for fast response and long life. Test result shows the effect of this system. Power factor of 40[W] electric fan is improved from 95[%] to 100[%]. In the case of electric light, power factor is improved from 82[%] to 100[%]. Response time for load variation is less than 1[ms].
키워드