基于演变虚拟净负荷的新型电力系统日前优化调度

肖白; 于海洋; 焦明曦; 王大亮; 张大弛; 姚狄; 辛昊阔

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电力建设 ›› 2025

基于演变虚拟净负荷的新型电力系统日前优化调度

肖白¹, 于海洋¹, 焦明曦², 王大亮², 张大弛³, 姚狄³, 辛昊阔³

作者信息 +

Day-ahead Optimal Dispatch of New Power System Based on Evolving Virtual Net Load

XIAO Bai¹, YU Haiyang¹, JIAO Mingxi², WANG Daliang², ZHANG Dachi³, YAO Di³, XIN Haokuo³

Author information +

文章历史 +

摘要

【目的】针对新型电力系统中源荷不确定性给制定调度计划带来的不利影响,以及全额保障性收购可再生能源电量的消纳问题,提出一种基于演变虚拟净负荷的新型电力系统日前优化调度方法。【方法】首先,利用Informer模型对风光出力和负荷的时间序列进行场景预测。然后,在虚拟净负荷基础上定义了演变虚拟净负荷,并计算电力系统中的演变虚拟净负荷。最后,考虑系统的运行特性,以保障性收购可再生能源电量为基础,以包含各机组运行成本和碳排放成本在内的系统总成本最小为目标,以系统灵活性约束条件反映源荷不确定性的需求,建立基于演变虚拟净负荷的新型电力系统日前优化调度模型。【结果】通过实例分析表明,与其它调度方法相比,所提方法能有效提高系统应对源荷不确定性波动的能力,降低碳排放成本和促进可再生能源发电项目上网电量的消纳。【结论】所提方法能够同时兼顾可再生能源上网电量保障性收购与市场化竞价激励,平衡政策要求与企业经济性需求;且在保障系统安全运行的同时,通过优化机组发电成本与碳收益,能够实现经济性与低碳性的双重提升。

Abstract

[Objective] Aiming at the adverse effects of source-load uncertainty in the new power system on the formulation of scheduling plans and the consumption of renewable energy power in full-guaranteed acquisition, this paper introduces a day-ahead optimal dispatch method that is founded on the concept of evolving virtual net load. [Methods] Firstly, the Informer model is used to generate the time series of wind power and load. Then, the evolution virtual net load is defined on the basis of the virtual net load, and the evolution virtual net load in the power system is calculated. Finally, considering the operating characteristics of the system, based on the guaranteed acquisition of renewable energy power, with the goal of minimizing the total system cost including the operating cost and carbon emission cost of each unit, the system flexibility constraint condition is used to reflect the demand of source-load uncertainty, and a new day-ahead optimal scheduling model of power system based on evolutionary virtual net load is established. [Results] The actual example analysis shows that compared with other scheduling models, the proposed method can effectively improve the system's ability to cope with source-load uncertainty fluctuations, reduce carbon emission costs and promote the consumption of on-grid electricity for renewable energy power generation projects. [Conclusions] The proposed method can balance the policy requirements and the economic needs of enterprises by taking into account both the guaranteed purchase of renewable energy online electricity and the market-oriented bidding incentives. While ensuring the safe operation of the system, the dual improvement of economy and low carbon can be achieved by optimizing the power generation cost and carbon income of the unit.

导出引用

肖白, 于海洋, 焦明曦, 王大亮, 张大弛, 姚狄, 辛昊阔. 基于演变虚拟净负荷的新型电力系统日前优化调度[J]. 电力建设. 2025

XIAO Bai, YU Haiyang, JIAO Mingxi, WANG Daliang, ZHANG Dachi, YAO Di, XIN Haokuo. Day-ahead Optimal Dispatch of New Power System Based on Evolving Virtual Net Load[J]. Electric Power Construction. 2025

中图分类号： TM73

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