| 摘要 |
A photovoltaic system comprises a photovoltaic generator including photovoltaic modules (3) electrically connected in form of string(s) (5), a first terminal (7) having a first potential of negative polarity, and a second terminal (9) having a second potential of positive polarity; and a direct current (DC) voltage source (23), preferably constant voltage source, having a negative terminal (25) connected to ground (13) and a positive terminal (27) connected to first or second terminal of photovoltaic generator for raising the first or second potential relative to ground. |
