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The participation of wind power and energy storage in primary frequency regulation of power grid can make better use of the advantages of wind power and energy storage for frequency regulation，which has gradually become a new trend. However，there are some problems in the coordination of wind power system and energy storage，such as insufficient utilization of energy storage and mismatch of wind power and energy storage power. Aiming at the above problems，an improved wind-storage combined primary frequency control strategy was proposed. Through frequency separation，design of six operating conditions and the switching rules，optimization of wind power and energy storage adaptive droop coefficient，the charging and discharging function of energy storage battery was realized，the power mismatch problem in operating condition switching was improved，and the excessive compensation of power shortage caused by this was avoided. Finally，the wind energy utilization efficiency and frequency regulation effect of the proposed control strategy and the existing control strategy were compared through simulation and wind storage experimental platform，and the effectiveness and superiority of the proposed control strategy were verified.
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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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