대한전기학회:학술대회논문집 (Proceedings of the KIEE Conference)
- 대한전기학회 2008년도 제39회 하계학술대회
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- Pages.83-84
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- 2008
Matlab/Simulink를 이용한 무효전력 보상장치의 플리커 저감 효과 연구
Comparative Simulation of flicker Mitigating Efficiencies of Various Compensating Devices using Matlab/Simulink
- Jung, Jae-Ahn (School of Electrical Engineering in Korea University) ;
- Cho, Soo-Hwan (School of Electrical Engineering in Korea University) ;
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Jang, Gil-Soo
(School of Electrical Engineering in Korea University) ;
- Kang, Moon-Ho (Korea Electrical Power Research Institute)
- 발행 : 2008.07.16
초록
Voltage fluctuation, also known as flicker, is a power quality problem caused by nonlinear loads like electric arc furnace. Since it is interpreted as a variation of the supplied electrical energy, it causes the residential customers to feel much annoyed visually through the lamps. Due to the statistical nature of IEC (International Electrotechnical Commission) short-term flicker severity index, Pst, it is not feasible to pre-evaluate the flicker level using the transient power system simulators such as Sim Power System in Matlab/Simulink. So this paper presents not only how to design the Matlab/Simulink IEC flickermeter to yield the Pst value, which considering electric distribution environments of South Korea, but also how to mitigate the voltage flicker at the Point of Common Coupling (PCC). In order to achieve this, the flicker mitigation efficiencies of various compensating devices, such as Static Var Compensator (SVC), STATCOM will be applied and compared. The simulated result demonstrates which compensating equipment is the most efficient method to mitigate the flicker phenomenon.
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