多时间尺度下智能楼宇异构负荷协同调度研究

RESEARCH ON COORDINATED SCHEDULING OF HETEROGENEOUS LOADS IN SMART BUILDINGS UNDER MULTI-TIME SCALES

为应对大规模具有异构特性的灵活负荷接入智能楼宇,解决可再生能源随机性与灵活异构负荷不确定性造成楼宇的负荷波动问题,需对灵活异构负荷进行合理管控,提出一种计及多时间尺度下智能楼宇异构负荷协同调控方法。首先,考虑异构负荷用电特性及响应特性差异,将智能楼宇内异构负荷等效为可转移负荷与可削减负荷。进而,综合可再生能源波动性与异构负荷时域互补性,建立日前-日内两阶段联合优化调度模型。算例仿真表明,异构负荷之间协调互动和多时间尺度滚动优化,能有效减少系统负荷波动,显著提升整体运行经济性。

In order to cope with large-scale flexible loads with heterogeneous characteristics connected to smart buildings,and to solve the problem of load fluctuations in buildings caused by the randomness of renewable energy and the uncertainty of flexible and heterogeneous loads,it is necessary to reasonably manage and control flexible and heterogeneous loads.A collaborative control method for heterogeneous loads in intelligent buildings considering multiple time scales is proposed.Firstly,considering the differences in power consumption characteristics and response characteristics of heterogeneous loads,the heterogeneous loads in the building are clustered into transferable loads and curtailable loads.Furthermore,considering the time-domain complementarity of the volatility of renewable energy and heterogeneous loads,a two-stage joint optimization dispatching model of day-ahead-intraday is established.The example simulation shows that the coordinated interaction between heterogeneous loads and multi-time scale rolling optimization can effectively reduce system load fluctuations and significantly improve the overall operating economy.