| 引用本文: | 李 轩,王 伟.基于负荷可行域的可靠性约束机组组合模型及其两阶段求解方法[J].电力系统保护与控制,2025,53(17):91-101. |
| LI Xuan,WANG Wei.A reliability-constrained unit commitment model based on load feasible region and its two-stage solution method[J].Power System Protection and Control,2025,53(17):91-101 |
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| 摘要: |
| 电力系统可靠性评估计算复杂性高、计算时间长，难以应用于电力系统运行的短时间尺度。为了实现考虑可靠性的电力系统运行，提出了一种基于负荷可行域的可靠性约束机组组合模型及其两阶段求解方法。首先，采用负荷可行域模型构建可靠性约束，实现机组组合过程中对系统可靠性的考虑与量化计算。其次，提出可靠性约束机组组合模型的两阶段求解方法，实现可靠性约束机组组合模型的快速求解。最后，在IEEE30系统、IEEE RTS-96系统进行了算例验证。算例结果表明：可靠性约束机组组合模型可有效降低系统总成本；两阶段求解方法可准确、快速地得到最优的机组组合方案。 |
| 关键词: 机组组合 可靠性约束 负荷可行域 近似距离模型 两阶段求解算法 |
| DOI：10.19783/j.cnki.pspc.241467 |
| 分类号: |
| 基金项目:重庆市技术创新与应用发展专项重点项目资助(CSTB2022TIAD-KPX0053) |
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| A reliability-constrained unit commitment model based on load feasible region and its two-stage solution method |
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LI Xuan, WANG Wei
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CISDI Electric Technology Co., Ltd., Chongqing 400013, China
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| Abstract: |
| Power system reliability evaluation is highly complex and time-consuming, making it challenging to apply within short-term operational timescales. To enable power system operation that accounts for reliability, a reliability-constrained unit commitment (RCUC) model and its two-stage solution method are proposed based on load feasible region model. First, a load feasible region model is employed to formulate reliability constraints, enabling the integration and quantitative evaluation of system reliability during the unit commitment process. Then, a two-stage solution method is developed for the RCUC model to achieve efficient computation. Finally, case studies are performed in the IEEE30 and IEEE RTS-96 systems. The results demonstrate that the proposed RCUC model can effectively reduce the total operational costs, and the two-stage solution method can accurately and efficiently obtain the optimal unit commitment scheme. |
| Key words: unit commitment reliability constraint load feasible region approximate distance method two-stage solution method |
