In order to solve the activepower dynamic oscillation problem of parallel system for traditional energy storage virtual synchronous generator (VSG) and diesel generator set (DGS) under load disturbance, an active power dynamic oscillation suppression strategy for diesel storage microgrid based on activepower proportional differential feedforward VSG (APDFVSG) is proposed in this paper. Firstly, the small signal model of the parallel system for energy storage VSG and DGS is established, as well as the influences of virtual inertia, virtual damp and output impedance parameters of energy storage VSG on active power oscillation of the system are analyzed. On this basis, the active power dynamic oscillation suppression strategy based on ADPFVSG is proposed and the corresponding parameter design process is given. Finally, the MATLAB simulation model of the parallel system for energy storage VSG and DGS is established, and the simulation results are used to verify the effectiveness of the proposed APDFVSG control strategy in suppressing activepower dynamic oscillation of the dieselstoragemicrogrid.
| 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 |