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The power control mechanism of cascaded island microgrids (MGs) composed of dispatchable and non-dis-patchable distributed generations (DGs) is complex, and the voltage and frequency regulation is difficult. Aimed at these problems, a novel decentralized master-slave power distribution control method is proposed in this paper to realize the voltage and frequency regulation and power distribution of the cascaded island MGs including second-class DGs. The control methods for master and slave DGs are designed, respectively. The master DG is responsible for adjusting the fre-quency and voltage of MG. Meanwhile, the slave DGs in MPPT mode can run under certain bus voltage, which can max-imally use the output power from non-dispatchable DGs and perform automatic power reduction under the light load condition, thereby effectively guaranteeing the safety and stability of the system. Finally, the effectiveness of the pro-posed method is verified by simulation and experimental results.
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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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