摘要
考虑系统中普遍存在的多重不确定因素,引入不确定规划理论,将风电和负荷出力的不确定性表示为预测误差的不确定性。由于其出力特性的各不相同,分别采用模糊变量和随机变量处理,建立了模糊变量和随机变量共存的混合机会约束机组组合模型。根据所建模型,提出了混合模拟的进化算法进行求解。最后,为了证明模型的正确性,采用简化算例进行验证,结果表明了所建模型的合理性和有效性。
Considering the common multiple uncertain factors in the power system, uncertain programming theory is introduced in this paper. The uncertainty of the wind power and load are expressed as the uncertainty of their predicted errors. Because of their different characteristic, fuzzy variable and random variable are employed respectively. A mixed chanced constrained unit commitment model with fuzzy variable and random variable at the same time is built. A mixed simulation evolutionary algorithm is applied to solve the model. To demonstrate the correctness of the proposed model, a simplified system is performed. The results show the rationality and effectiveness of the proposed model.
出处
《陕西电力》
2015年第6期1-4,23,共5页
Shanxi Electric Power
基金
国家自然科学基金项目资助(51277075)
中央高校基本科研业务费专项资金资助项目(12MS110)
关键词
风电
预测误差
不确定性
混合机会约束
wind power
prediction error
uncertainty
mixed chanced constraint
作者简介
张立（1990-），男，江苏扬州人，硕士研究生，主要研究方向为电力系统运行分析与控制。
