Abstract
A fast and robust control strategy for a multilevel inverter in grid-connected photovoltaic system is presented. The multilevel inverter is based on a dual two-level inverter topology. There are two isolated PV generators that feeding each bridge inverter. The output of each inverter is connected to a three-phase transformer. The active and reactive powers flowing into the grid are controlled by a sliding mode algorithm. An alfa-beta space vector modulator is also used. The inverters DC voltages are also controller by a sliding mode controller. In this way, a fast and robust system controller is obtained. Several test results are presented in order to verify the effectiveness of the proposed system controller. (C) 2012 Elsevier Ltd. All rights reserved.
| Original language | English |
|---|---|
| Pages (from-to) | 2106-2115 |
| Number of pages | 10 |
| Journal | Solar Energy |
| Volume | 86 |
| Issue number | 7 |
| DOIs | |
| Publication status | Published - Jul 2012 |
Keywords
- Sliding mode controller
- Vector modulator
- Dual inverter
- Photovoltaic system
- Power converter
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Fernão Pires, V., Martins, J. F. A., & Hao, C. (2012). Dual-inverter for grid-connected photovoltaic system: Modeling and sliding mode control. Solar Energy, 86(7), 2106-2115. https://doi.org/10.1016/j.solener.2012.04.012