风-光-抽水蓄能互补清洁能源基地变时间尺度调度策略

A Variable Time-Scale Scheduling Strategy for Wind-Solar-Pumped Storage Complementary Clean Energy Bases

中文关键词:风光抽水蓄能  清洁能源  变时间尺度  调度策略  风光不确定性  旋转备用容量  可靠性

keywords:wind-solar-pumped storage  clean energy  variable time-scale  scheduling strategy  wind & solar uncertainty  spinning reserve capacity  reliability

中文摘要:针对传统固定时间尺度调度策略难以保证高比例清洁能源基地运行可靠性的问题，提出一种风-光-抽水蓄能互补清洁能源基地变时间尺度调度策略。该策略以预测误差的置信区间为基础，动态确定系统所需的备用容量。根据当前时间尺度下风光预测误差的置信区间，分析未来时段清洁能源基地的可靠性，并基于可靠性要求动态调整调度时间尺度。结果表明，所提策略在保证运行可靠性的同时，有效降低了备用容量的配置成本。

Abstract:Traditional fixed time-scale scheduling strategies have difficulty in guaranteeing the operational reliability of high-proportion clean energy bases. To address this problem，this paper proposes a variable time-scale scheduling strategy for wind-solar-pumped storage complementary clean energy bases. Based on the confidence interval of wind and photovoltaic power forecasting errors，the proposed strategy dynamically quantifies the system reserve capacity requirement. According to the real-time forecasting error confidence interval under the current scheduling time scale，the future operational reliability of the clean energy base is evaluated，and the scheduling time scale is dynamically adjusted to meet system reliability constraints. Simulation results demonstrate that the proposed strategy can effectively reduce the configuration cost of spinning reserve capacity while maintaining the reliable operation of clean energy systems.