A grid-connected single-phase photovoltaic micro inverter - Details

author：

Wen, X.Y. (Wen, X.Y..) ^[1] | Lin, P.J. (Lin, P.J..) ^[2] | Chen, Z.C. (Chen, Z.C..) ^[3] | Wu, L.J. (Wu, L.J..) ^[4] | Cheng, S.Y. (Cheng, S.Y..) ^[5]

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Abstract：

In　this　paper,　the　topology　of　a　single-phase　grid-connected　photovoltaic　(PV)　micro-inverter　is　proposed.　The　PV　micro-inverter　consists　of　DC-DC　stage　with　high　voltage　gain　boost　and　DC-AC　conversion　stage.　In　the　first　stage,　we　apply　the　active　clamp　circuit　and　two　voltage　multipliers　to　achieve　soft　switching　technology　and　high　voltage　gain.　In　addition,　the　flower　pollination　algorithm　(FPA)　is　employed　for　the　maximum　power　point　tracking　(MPPT)　in　the　PV　module　in　this　stage.　The　second　stage　cascades　a　H-bridge　inverter　and　LCL　filter.　To　feed　high　quality　sinusoidal　power　into　the　grid,　the　software　phase　lock,　outer　voltage　loop　and　inner　current　loop　control　method　are　adopted　as　the　control　strategy.　The　performance　of　the　proposed　topology　is　tested　by　Matlab/Simulink.　A　PV　module　with　maximum　power　300W　and　maximum　power　point　voltage　40V　is　applied　as　the　input　source.　The　simulation　results　indicate　that　the　proposed　topology　and　the　control　strategy　are　feasible.　©　Published　under　licence　by　IOP　Publishing　Ltd.

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[ 1 ] [Wen, X.Y.]Institute of Micro/Nano Devices and Solar Cells, College of Physics and Information Engineering, Fuzhou University, Fuzhou, 350116, China
[ 2 ] [Lin, P.J.]Institute of Micro/Nano Devices and Solar Cells, College of Physics and Information Engineering, Fuzhou University, Fuzhou, 350116, China
[ 3 ] [Lin, P.J.]Jiangsu Collaborative Innovation Center of Photovoltaic Science and Engineering, Changzhou, 213164, China
[ 4 ] [Chen, Z.C.]Institute of Micro/Nano Devices and Solar Cells, College of Physics and Information Engineering, Fuzhou University, Fuzhou, 350116, China
[ 5 ] [Chen, Z.C.]Jiangsu Collaborative Innovation Center of Photovoltaic Science and Engineering, Changzhou, 213164, China
[ 6 ] [Wu, L.J.]Institute of Micro/Nano Devices and Solar Cells, College of Physics and Information Engineering, Fuzhou University, Fuzhou, 350116, China
[ 7 ] [Wu, L.J.]Jiangsu Collaborative Innovation Center of Photovoltaic Science and Engineering, Changzhou, 213164, China
[ 8 ] [Cheng, S.Y.]Institute of Micro/Nano Devices and Solar Cells, College of Physics and Information Engineering, Fuzhou University, Fuzhou, 350116, China
[ 9 ] [Cheng, S.Y.]Jiangsu Collaborative Innovation Center of Photovoltaic Science and Engineering, Changzhou, 213164, China

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IOP Conference Series: Earth and Environmental Science

ISSN： 1755-1307

Year： 2017

Issue： 1

Volume： 93

Language： English

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SCOPUS Cited Count： 3

ESI Highly Cited Papers on the List： 0 Unfold All

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