Abstract
This paper presents a high-efficiency power conditioning system (PCS) for grid-connected photovoltaic (PV) modules. The proposed PCS consists of a step-up DC-DC converter and a single-phase DC-AC inverter for the grid-connected PV modules. A soft-switching step-up DC-DC converter is proposed to generate a high DC-link voltage from the low PV module voltage with a high-efficiency. A DC-link voltage controller is presented for constant DC-link voltage regulation. A half-bridge inverter is used for the single-phase DC-AC inverter for grid connection. A grid current controller is suggested to supply PV electrical power to the power grid with a unity power factor. Experimental results are obtained from a 180 W grid-connected PV module system using the proposed PCS. The proposed PCS achieves a high power efficiency of 93.0% with an unity power factor for a 60 Hz/120 Vrms AC power grid.
| Original language | English |
|---|---|
| Pages (from-to) | 561-567 |
| Number of pages | 7 |
| Journal | Journal of Power Electronics |
| Volume | 11 |
| Issue number | 4 |
| DOIs | |
| State | Published - 2011.07 |
UN SDGs
This output contributes to the following UN Sustainable Development Goals (SDGs)
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SDG 7 Affordable and Clean Energy
Keywords
- Photovoltaic
- Power conditioning system
- Power-efficiency
- Power-factor
- Step-up DC-DC converter
Quacquarelli Symonds(QS) Subject Topics
- Computer Science & Information Systems
- Engineering - Electrical & Electronic
- Engineering - Petroleum
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