Single‐phase solar PV system with battery and exchange of power in grid‐connected and standalone modes
| Autor: | Nupur Saxena, Anoop Lal Vyas, Bhim Singh |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Engineering
Renewable Energy Sustainability and the Environment business.industry 020209 energy 020208 electrical & electronic engineering Photovoltaic system Load balancing (electrical power) 02 engineering and technology Maximum power point tracking Constant power circuit Stand-alone power system Electric power system Control theory 0202 electrical engineering electronic engineering information engineering Islanding Grid-connected photovoltaic power system business |
| Zdroj: | IET Renewable Power Generation. 11:325-333 |
| ISSN: | 1752-1424 1752-1416 |
| DOI: | 10.1049/iet-rpg.2016.0143 |
| Popis: | A grid tied photovoltaic (PV) power conversion topology is presented in this study with a novel scheme of re-synchronisation to the grid. This scheme serves the purpose of supplying continuous power to the load along with feeding power to the grid. The control approach helps in mitigation of harmonics and improving the power quality while extracting the optimum power from the PV array. Depending on the availability of grid voltage, the proposed configuration is controlled using three approaches, defined as grid current control, Point of Common Coupling (PCC) voltage control and intentional islanding with re-synchronisation. A simple proportional integral controller manages the grid current, load voltage, battery current and DC Direct Current (DC) link voltage within these modes. Moreover, a control scheme for quick and smooth transitions among the modes is described. The robustness of the system under erratic behaviour of solar insolation, load power and disturbances in grid supply makes it a suitable choice for a residential application. The control, design and simulation results are presented to demonstrate the satisfactory operation of the proposed system. |
| Databáze: | OpenAIRE |
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