A Second-order Harmonic Current Reduction with a Fast Dynamic Response for a Two-stage Single-phase Grid-connected Inverter
- Authors
- Jung, Hong-Ju; Kim, Rae-Young
- Issue Date
- Nov-2014
- Publisher
- SPRINGER SINGAPORE PTE LTD
- Keywords
- Grid-connected inverter; Compensator design; Second-order harmonic current; Dynamic response
- Citation
- JOURNAL OF ELECTRICAL ENGINEERING & TECHNOLOGY, v.9, no.6, pp.1988 - 1994
- Indexed
- SCIE
SCOPUS
KCI
- Journal Title
- JOURNAL OF ELECTRICAL ENGINEERING & TECHNOLOGY
- Volume
- 9
- Number
- 6
- Start Page
- 1988
- End Page
- 1994
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/143968
- DOI
- 10.5370/JEET.2014.9.6.1988
- ISSN
- 1975-0102
- Abstract
- In a single-phase grid-connected power system consisting of a DC/DC converter and a DC/AC converter, the current drawn from renewable energy sources has a tendency to be pulsated and contains second-order frequency ripple components, which results in several drawback such as a power harvesting loss and a shortening of the energy source's life. This paper presents a new second-order harmonic current reduction scheme with a fast dc-link voltage loop for two-stage dc-dc-ac grid connected systems. In the frequency domain, an adequate control design is performed based on the small signal transfer function of a two-stage dc-dc-ac converter. To verify the effectiveness of proposed control algorithm, a 1 kW hardware prototype has been built and experimental results are presented.
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