Full
Outline
The goal of avirtual power plant (VPP) is to aggregate and use a large number of distributed generations (DGs) with tiny capacities. A load frequency control (LFC) model for the secondary frequency regulation of thermal power units is constructed with the time-segmented participation of a VPP that aggregates energy storage, electric vehicles and wind turbines, and a kind of centralized automatic generation control strategy with VPP is proposed. The frequency modulation model for aggregated resources in the VPP is analyzed, the constraints on each frequency modulation link are taken into account, and the minimization of frequency modulation costs and area control erroris taken as an objective. Meanwhile, model predictive control is used to optimize the allocation of power output from DGs within the VPP. The proposed LFC model for a two-region power system is simulated using MATLAB/Simulink, and the frequency error and power deviation of the tie line are compared before and after the VPP takes part in the system frequency modulation. According to the simulation results, it is found that the multi-region LFC with participation of VPP can reduce frequency disturbances and power deviation of the tie line brought by power fluctuations, and the proposed control strategy can achieve the optimal allocation of active output. Comparison with the conventional PID regulation, this strategy also has better control outcomes.
26
3
| 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 |
关闭全屏
No. 86 Xueyuan South Road, Haidian District, Beijing
010-62662699(Operation and Technical Support)
qkjq@cast.org.cn
Copyright © 2025 China Association for Science and Technology. All rights reserved. For all open access content, the relevant licensing terms apply.
Sponsored by the Office of the Leading Group for Cybersecurity and Informatization of CAST, and supported by Science and Technology Review Publishing House
