基于深度学习的含风电不确定性的暂态稳定约束最优潮流
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TM712

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国家自然科学基金资助项目(52407118)


Deep learning-based transient stability constrained optimal power flow with wind power uncertainty
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    摘要:

    随着新能源装机比例的提升,传统的暂态稳定约束最优潮流(transient stability constrained optimal power flow, TSCOPF)模型在含新能源的电力系统中面临稳定性挑战。为此,文中提出一种基于深度学习的含风电不确定性的TSCOPF模型。首先,结合自适应噪声的完全集合经验模态分解(complete ensemble empirical mode decomposition with adaptive noise, CEEMDAN)、经验小波变换(empirical wavelet transform, EWT)和长短期神经网络(long short-term memory, LSTM)的级联方法,以提高风电功率预测的精度,并增强其鲁棒性;其次,为实现系统暂态稳定性的快速准确评估,采用改进多层感知器(improved multilayer perceptron, IMLP)模型构建系统运行状态与暂态稳定指数(transient stability index, TSI)的映射关系;然后,采用基于Lévy飞行改进的向量加权平均(improved weighted mean of vectors, IINFO)算法求解TSCOPF模型;最后,通过改进的IEEE 39节点及IEEE 68节点系统开展仿真实验。结果表明,所提级联方法在风电预测中的预测性能优于传统方法,所提TSCOPF模型在风电接入条件下仍能保证系统稳定运行,且IINFO算法相较其他算法表现出更快的收敛速度及更低的优化成本。

    Abstract:

    A deep learning-based transient stability constrained optimal power flow (TSCOPF) model with wind power uncertainty is proposed to address stability challenges faced by traditional TSCOPF models in power systems with increasing renewable energy integration. A cascaded prediction method combining complete ensemble empirical mode decomposition with adaptive noise (CEEMDAN), empirical wavelet transform (EWT), and long short-term memory (LSTM) networks is firstly developed to enhance wind power prediction accuracy and robustness. An improved multi-layer perceptron (IMLP) model is then employed to establish the mapping relationship between system operating states and transient stability index (TSI) for rapid and accurate transient stability assessment. An improved weIghted mean of vectors (IINFO) algorithm based on Lévy flight is subsequently adopted to solve the TSCOPF optimization problem. Simulation experiments are finally conducted on modified IEEE 39-bus and IEEE 68-bus test systems. Results demonstrate that the proposed cascaded method achieves superior prediction performance compared to traditional methods in wind power forecasting. The proposed TSCOPF model is verified to maintain stable system operation under wind power integration conditions. The improved IINFO algorithm exhibits significantly faster convergence speed and lower optimization costs than other optimization algorithms.

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刘颂凯,成思鋙,苏攀,李彦彰,秦浩,陈常贺.基于深度学习的含风电不确定性的暂态稳定约束最优潮流[J].电力工程技术,2026,45(5):15-26. LIU Songkai, CHENG Siyu, SU Pan, LI Yanzhang, QIN Hao, CHEN Changhe. Deep learning-based transient stability constrained optimal power flow with wind power uncertainty[J]. Electric Power Engineering Technology,2026,45(5):15-26.

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历史
  • 收稿日期:2025-07-13
  • 最后修改日期:2025-10-03
  • 在线发布日期: 2026-05-27
  • 出版日期: 2026-05-28
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