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The technology of grid-forming energy storage can form a voltage source, which can support the stable operation of large power grids. The technology of grid-forming energy storage is an effective means to support the stable operation of high proportion of new energy connected to the grid. Based on this, the operation mechanism of grid-forming energy storage to support the stability of high proportion of new energy connected to the grid is analyzed. According to the principle and characteristics of grid-forming energy storage technology, five commonly used technologies to improve the stability of the grid are compared and. A model building idea of grid-forming energy storage system considering multi-time-varying parameters is proposed. Moreover, the scheme of grid-forming energy storage technology supporting high proportion of new energy grid-connected and the mechanism analysis of massive grid-forming energy storage equipment grid-connected oscillation is proposed. In addition, the system impedance dynamic identification technology based on signal injection is studied, and then the impedance reconstruction technical route of massive grid-forming energy storage equipment grid-connected system is proposed.
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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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