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| Content Provider | IET Digital Library |
|---|---|
| Author | Viinamäki, J. Jokipii, J. Messo, T. Suntio, T. Sitbon, M. Kuperman, A. |
| Abstract | In transformer-less grid-connected renewable energy systems, interfacing of photovoltaic (PV) generators is typically implemented by means of DC–DC boost-power-stage converter, mainly because of its voltage-boosting capability. In order to track the maximum power point of a PV generator, input voltage of the converter is usually feedback controlled, forcing the converter to operate as a current-sourced rather than voltage-sourced converter. Nevertheless, PV generator interfacing power stage is commonly assumed to possess the same dynamic properties as corresponding voltage-sourced power stage. Investigations presented in this study reveal explicitly that the dynamics of PV generator interfacing DC–DC boost power stage resembles conventional buck power stage behaviour with duty-cycle independent resonance and additional right-half-plane zeros. In addition, the duty cycle has to be decreased for increasing the corresponding output variables (i.e. input voltage and output current). Extended experimental results are given to support the theoretical findings. |
| Starting Page | 306 |
| Ending Page | 314 |
| Page Count | 9 |
| ISSN | 17521416 |
| Volume Number | 9 |
| e-ISSN | 17521424 |
| Issue Number | Issue 4, May (2015) |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/iet-rpg/9/4 |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/iet-rpg.2014.0149 |
| Journal | IET Renewable Power Generation |
| Publisher Date | 2014-11-04 |
| Access Restriction | Open |
| Rights Holder | © The Institution of Engineering and Technology |
| Subject Keyword | A.C. Machine AC Generators Buck Power Stage Behaviour Comprehensive Dynamic Analysis Current-sourced Converter DC-DC Boost-power-stage Converter Duty-cycle Independent Resonance Input Voltage Maximum Power Point Trackers Photovoltaic Generator Photovoltaic Power System PV Generator Right-half-plane Zeros Solar Power Stations Transformer-less Grid-connected Renewable Energy System Voltage-boosting Capability Voltage-sourced Converter |
| Content Type | Text |
| Resource Type | Article |
| Subject | Renewable Energy, Sustainability and the Environment |
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