新型电力系统背景下现货市场交易机制设计与仿真验证

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辉 彭
伟 吕

摘要

在新型电力系统加速构建的背景下,现货市场作为价格发现与资源优化配置的核心机制,亟需适配高比例新能源接入、源荷双侧强不确定性及电力电子化设备广泛渗透的新特征。本文提出一种融合节点边际电价动态修正、多时间尺度出清耦合与弹性容量补偿的现货市场交易机制,并基于典型区域电网拓扑与实测运行数据构建数字孪生仿真平台。通过设置基准情景、高波动情景与极端故障情景三类工况,量化评估所提机制在价格稳定性、新能源消纳率、系统备用充裕度及市场主体收益公平性四个维度的表现。结果表明:该机制使日前与实时市场价差波动幅度降低37.2%,风电光伏综合消纳率提升至94.6%,关键节点备用响应延迟缩短至2.8秒,中小发电商收益离散系数由0.53收敛至0.21。研究为新型电力系统下市场机制的鲁棒性设计提供了可验证的技术路径。

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