Compressed air energy storage (CAES), as an energy storage technology with great development potential, has the advantages of large scale, long life and environmental protection. However, due to its large capacity, if the voltage phase amplitude and frequency are not the same as those of the power grid when it is connected to the power grid, there will be a problem that the grid-connection impulse current is too large and threatens the safe and stable operation of the power system. Therefore, based on linear active disturbance rejection control (LADRC), which is more accurate than traditional PI control, a linear active disturbance rejection control strategy with adaptive adjustment of bandwidth parameters is proposed to achieve smooth grid connection. Finally, the proposed control strategy is verified by simulation experiment and hardware-in-the-loop experiments, and appropriate adjustment parameters are selected. The results show that the proposed adaptive control strategy can effectively reduce the impact of grid-connection and achieve smooth grid-connection, providing a new solution for the safe access of compressed air energy storage to the grid.
| 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 |