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With the largescale access of new energy into the power grid, traditional power flow calculation can no longer meet the needs of the distribution network, and the effectiveness of reactive power allocation of the distribution network is reduced, thus affecting the safety and stability of the entire distribution network. Therefore, this paper analyzes the influence characteristics of power flow in substations including new energy stations, establishes the PCC node model of new energy stations connected to the regional power grid, and uses the branch forward pushback method as the power flow calculation method of distribution network. The characteristics of reactive power compensation in substation with new energy station access are analyzed, and the reactive power compensation capacitors are planned based on equal quantity grouping. Finally, taking a substation as an example, the feasibility of the proposed calculation method is verified, which fully proves the effectiveness of the proposed calculation method.
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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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