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Voltage source converter （VSC） is prone to low-frequency oscillations of 100~101 Hz when connected to weak AC power grids. The mechanism of improving the control strategy of VSC on the traditional inverter side to suppress low-frequency oscillations（LFO） in the AC power grid is to transfer the oscillations from the AC side to the DC side，which poses a risk of inducing instability in the DC system. An adaptive voltage power damping control strategy was designed that can suppress low-frequency oscillations in AC systems based on the adjustable output power of the interface converter of energy storage devices containing new energy storage stations. This strategy was based on a damping control loop embedded in the rectifier side VSC control system，which suppresses DC voltage oscillation by controlling the output power of the rectifier energy storage system，effectively solving the shortcomings of traditional inverter side VSC control strategies in transferring oscillations. Based on the analysis of small signal stability，the parameter design process of the virtual damping control link was provided. The simulation results in Matlab/Simulink environment verified the effectiveness of the proposed control strategy and the correctness of the parameter design process.
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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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