Maximum power point tracking control of a high power dc-dc converter for PV integration in MVDC distribution grids
| Autor: | Philipp Joebges, Jingxin Hu, Rik W. De Doncker |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Engineering
Maximum power principle Buck converter business.industry 020208 electrical & electronic engineering 05 social sciences Photovoltaic system Feed forward 02 engineering and technology Maximum power point tracking Power optimizer Control theory 0202 electrical engineering electronic engineering information engineering Grid-connected photovoltaic power system 0501 psychology and cognitive sciences business 050107 human factors Power control |
| Zdroj: | 2017 IEEE Applied Power Electronics Conference and Exposition (APEC). |
| DOI: | 10.1109/apec.2017.7930857 |
| Popis: | This paper discusses the design of a control strategy for a three-phase dual-active bridge (DAB3) dc-dc converter, which is employed as the central converter to track the maximum power point (MPP) of a large-scale photovoltaic (PV) farm, and to deliver the generated energy into dc distribution grids. Considering the soft-switching characteristics of the DAB3 converter, two different maximum output power point tracking strategies are proposed to maximize PV power generation. To achieve a fast transient performance of the maximum-power-point-tracking (MPPT) based voltage control especially considering the non-linear characteristic of the PV panels, the PV current is compensated with a feedforward function in the cascaded control loop. A down-scaled laboratory prototype of the DAB3 converter is designed and tested with PV panels to validate the performance of the proposed control method. |
| Databáze: | OpenAIRE |
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