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Low frequency current reduction using a quasi-notch filter operated in two-stage DC-DC-AC grid-connected systems
- Jung, Hong-Ju;
- Ha, Keun-Soo;
- Song, Byeong-Mun;
- Lai, Jih-Sheng;
- Hyun, Dong-Seok;
- ... Kim, Rae-Young
Citations
SCOPUS
31초록
For a single-phase grid-connected power system, output power is pulsated instantaneously with a double-fundamental frequency. Accordingly, the current drawn from renewable energy sources tends to be pulsated and contains low frequency ripple components, which causes several issues including a power harvesting deterioration and energy source's life shortening. This paper proposes a novel power pulsation decoupling scheme to reduce low frequency ripple current with a fast voltage loop. Proper control design based the small-signal model of two-stage dc-dc-ac converter is presented in a frequency domain analysis, and its experimental waveforms are provided to verify the effectiveness.
키워드
Control design; Energy source; Grid connected systems; Grid-connected; Low frequency; Low-frequency currents; Output power; Power harvesting; Renewable energy source; Ripple component; Ripple currents; Small signal model; Two stage; Wave forms; DC-DC converters; Energy conversion; Frequency domain analysis; Heterojunction bipolar transistors; Renewable energy resources; DC power transmission
- 제목
- Low frequency current reduction using a quasi-notch filter operated in two-stage DC-DC-AC grid-connected systems
- 저자
- Jung, Hong-Ju; Ha, Keun-Soo; Song, Byeong-Mun; Lai, Jih-Sheng; Hyun, Dong-Seok; Kim, Rae-Young
- 발행일
- 2011-11
- 유형
- Conference Paper
- 저널명
- IEEE Energy Conversion Congress and Exposition: Energy Conversion Innovation for a Clean Energy Future, ECCE 2011, Proceedings
- 페이지
- 2746 ~ 2750