Abstract
This paper presents a step in microlevel photovoltaic (PV) summation technology for combining unsymmetrical PV modules with differences in specification and age, relocation on nonfertile land, or multilocation mounting by designing an add-on modular hardware interface to a multi-input single-output (MISO) dc bus, using an MISO controller employing a suitable maximum power point (MPP) tracker under partial shading/long distance/mismatching PV module conditions along with a sensor-less PV vector control inverter (PV-VCI) driving a three-phase asynchronous squirrel cage induction motor dedicated to irrigation, with the facility of autoconfiguration/autotuning at the beginning. A PV source gets automatically added/removed in a ramp profile in proportion to the load in steps, thus keeping on only when required, enabling high efficiency, minimum heating, and prolonged life as that of a PV module. The contribution includes a reduced PV energy cost per watt by 24.10%, improved return on investment by 27.48%, improved water discharge yield by 11.06%, and improved MPP tracker impact by 14.59% with 90.88% MISO system efficiency compared to a normal scheme.
Original language | English |
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Article number | 8362962 |
Pages (from-to) | 4813-4824 |
Number of pages | 12 |
Journal | IEEE Transactions on Industry Applications |
Volume | 54 |
Issue number | 5 |
DOIs | |
Publication status | Published - 1 Sept 2018 |
Externally published | Yes |
Keywords
- Field-oriented control (FOC)
- irrigation
- multi-input dc-dc converter
- photovoltaic (PV) module summation
- quadrupler (QDPR)
- single ended primary inductor converter (SEPIC)
- multi-input DC-DC converter