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With the development of photovoltaic(PV) industry, high capacity ratios have gradually become popular in the PV power station. To find the optimal charging/discharge strategy of energy storage (ES) in PV subarray with a high capacity ratio, one operation strategy based on working mode recognition was proposed to coordinate two competitive objectives—load shifting and smoothing. Furthermore, a capacity configuration model with the objectives of life cycle net present value maximization and output fluctuation minimization was constructed considering the generation income, ES cost, fluctuation characteristics, and typical day type. Moreover, taking a 1 MW subarray with 1.8 capacity ratio in a northeast utilityscale PV power station as a case, the optimal capacity of 700 kW·h was obtained. The simulation results under different typical days verified the feasibility and the effectiveness of the proposed ES operation strategy as well as the configuration model.
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| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
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