Direct power control of grid connected PV systems with three level NPC inverter

被引：44

作者：

Alonso-Martinez, Jaime ^{[1
]}

Eloy-Garcia, Joaquin ^{[1
]}

Arnaltes, Santiago ^{[1
]}

机构：

[1] Univ Carlos III Madrid, Dept Elect Engn, Madrid 28911, Spain

来源：

SOLAR ENERGY | 2010年 / 84卷 / 07期

关键词：

Direct power control; MPPT; Multilevel converter; Photovoltaic power systems; MULTILEVEL INVERTER; SINGLE-PHASE; SPACE-VECTOR; CONVERTER;

D O I：

10.1016/j.solener.2010.03.023

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

This paper presents the control of a three-level Neutral Point Clamped (NPC) voltage source inverter for grid connected photovoltaic (PV) systems The control method used is the Extended Direct Power Control (EDPC), which is a generic approach for Direct Power Control (DPC) of multilevel inverters based on geometrical considerations Maximum Power Point Tracking (MPPT) algorithms, that allow maximal power conversion into the grid, have been included These methods are capable of extracting maximum power from each of the independent PV arrays connected to each DC link voltage level The first one is a conventional MPPT which outputs DC link voltage references to EDPC The second one is based on DPC concept This new MPPT outputs power increment references to EDPC, thus avoiding the use of a DC link voltage regulator The whole control system has been tested on a three-level NPC voltage source inverter connected to the grid and results confirm the validity of the method (C) 2010 Elsevier Ltd. All rights reserved

引用

页码：1175 / 1186

页数：12

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