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| A robust unit commitment model considering wind power frequency support capability and operational risk |
| DOI：10.19783/j.cnki.pspc.240515 |
| Key Words:wind power frequency support capability operational risk unit commitment uncertainty of wind power robust feasible region |
| Author Name | Affiliation | | TAN Hong1,2 | 1. Hubei Provincial Collaborative Innovation Center for New Energy Microgrid (China Three Gorges University),
Yichang 443002, China
2. College of Electrical Engineering and New Energy, China Three Gorges University,
Yichang 443002, China
3. School of Electrical Engineering, Southeast University, Nanjing 210018, China | | CHEN Jiaxun2 | 1. Hubei Provincial Collaborative Innovation Center for New Energy Microgrid (China Three Gorges University),
Yichang 443002, China
2. College of Electrical Engineering and New Energy, China Three Gorges University,
Yichang 443002, China
3. School of Electrical Engineering, Southeast University, Nanjing 210018, China | | WANG Qiujie1,2 | 1. Hubei Provincial Collaborative Innovation Center for New Energy Microgrid (China Three Gorges University),
Yichang 443002, China
2. College of Electrical Engineering and New Energy, China Three Gorges University,
Yichang 443002, China
3. School of Electrical Engineering, Southeast University, Nanjing 210018, China | | CHEN Tao3 | 1. Hubei Provincial Collaborative Innovation Center for New Energy Microgrid (China Three Gorges University),
Yichang 443002, China
2. College of Electrical Engineering and New Energy, China Three Gorges University,
Yichang 443002, China
3. School of Electrical Engineering, Southeast University, Nanjing 210018, China | | LI Zhenxing1,2 | 1. Hubei Provincial Collaborative Innovation Center for New Energy Microgrid (China Three Gorges University),
Yichang 443002, China
2. College of Electrical Engineering and New Energy, China Three Gorges University,
Yichang 443002, China
3. School of Electrical Engineering, Southeast University, Nanjing 210018, China | | WENG Hanli1,2 | 1. Hubei Provincial Collaborative Innovation Center for New Energy Microgrid (China Three Gorges University),
Yichang 443002, China
2. College of Electrical Engineering and New Energy, China Three Gorges University,
Yichang 443002, China
3. School of Electrical Engineering, Southeast University, Nanjing 210018, China |
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| Abstract:The large-scale integration of wind power into the grid has led to a reduction in power system inertia and frequency response resources, highlighting frequency security issues under large disturbances. To address the challenges of wind power uncertainty and the reduced system inertia, a robust unit commitment (UC) model considering wind power frequency support capability and operational risk is proposed. First, a frequency security operational constraint model is established through the dynamic swing equation of frequency deviation after active power, and is embedded into the UC problem. Secondly, considering the uncertainty of wind power output, a robust feasible range definition for wind power output is proposed to characterize the safe operating range of the system’s wind power acceptance, and based on this, a system operational risk model is proposed. Finally, based on two-stage robust optimization theory, a robust optimization model for UC considering wind power frequency support capability and operational risk is proposed, and the column and constraint generation (C&CG) algorithm is used to solve the model. The effectiveness of the proposed model is verified through simulations conducted on the IEEE 9-bus and 118-bus testing systems. |
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