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Outline
With the rapid development of power electronics technology, flexible direct current (DC) transmission technology has also made significant progress. However, the oscillation issues that arise in practical applications of this technology have gradually attracted widespread attention. This paper aims to explore the impact on system impedance stability by modeling and analyzing each link of impedance measurement. First, the paper introduces the method of impedance stability analysis, emphasizing the importance of assessing system stability through impedance characteristics. On this basis, an in-depth analysis of the types of disturbance signal sources is conducted, and a model of the impedance measuring device is established to analyze its impedance characteristics in detail. Finally, through Matlab simulation, a comprehensive analysis of the impact of disturbance signal source types and impedance measuring devices on system impedance stability is carried out.
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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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