風(fēng)電接入下的時序漸進滾動修正調(diào)度模型
發(fā)布時間:2018-01-21 14:54
本文關(guān)鍵詞: 風(fēng)電接入 時序漸進 滾動修正 電量 調(diào)度 出處:《可再生能源》2017年11期 論文類型:期刊論文
【摘要】:以"電量"為紐帶,建立了風(fēng)電接入下的時序漸進滾動調(diào)度修正模型。該模型在時間尺度上包含年計劃、月計劃、日計劃以及實時調(diào)度計劃。時序漸進體現(xiàn)在上一級時間尺度為下一級時間尺度提供計劃電量或調(diào)度功率,指導(dǎo)下一級時間尺度的調(diào)度安排;滾動修正則根據(jù)下一級時間尺度提供的實際發(fā)電量對上一級進行不斷修正。年計劃和月計劃滾動修正模型側(cè)重于電量的不平衡修正,在各自時間尺度內(nèi),結(jié)合下一級時間尺度提供的實際已發(fā)電量以及最新的風(fēng)電、負荷預(yù)測信息,滾動修正剩余時段的發(fā)電計劃,保證各機組電量的有效實施。日計劃、日內(nèi)滾動優(yōu)化調(diào)度和實時調(diào)度模型側(cè)重于風(fēng)電功率的消納,針對風(fēng)電的隨機性和波動性,建立基于場景法的日前機組組合模型和日內(nèi)滾動優(yōu)化模型,且僅在日內(nèi)滾動調(diào)度和實時調(diào)度階段考慮合理棄風(fēng)。最后,通過修改的IEEE-RTS24系統(tǒng)進行算例仿真,驗證了該模型的有效性。
[Abstract]:Based on the "quantity of electricity" as the link, the paper establishes the time series progressive rolling scheduling correction model under the wind power access, which includes the annual plan and the monthly plan in the time scale. Day plan and real-time scheduling plan. Time series gradually reflect in the next level of time scale to provide the planned power or scheduling power to guide the next level of time scale scheduling arrangements; The rolling correction is based on the actual power generation provided by the next time scale. The annual plan and the monthly plan rolling correction model focus on the unbalanced correction of the electricity in their respective time scales. Combined with the actual power generation and the latest wind power and load forecasting information provided by the next time scale, the generation plan of the remaining period of time can be revised by rolling to ensure the effective implementation of the electricity generation plan of each unit. Intra-day rolling optimal scheduling and real-time scheduling model focus on wind power absorption, aiming at the randomness and volatility of wind power, the pre-day unit combination model and intra-day rolling optimization model based on scenario method are established. And the reasonable abandonment is considered only in the rolling scheduling and real-time scheduling stage. Finally, the validity of the model is verified by the simulation of the modified IEEE-RTS24 system.
【作者單位】: 國網(wǎng)四川省電力公司;四川大學(xué)電氣信息學(xué)院;
【基金】:國家高技術(shù)研究發(fā)展計劃項目(2014AA051901) 國家自然科學(xué)基金項目(51377111)
【分類號】:TM73
【正文快照】: 0引言近年來,由于能源和環(huán)境問題的日益突出,以風(fēng)電為代表的可再生能源引起了越來越多的關(guān)注。由于風(fēng)電具有間歇性和隨機性的特點,因此,制定有效的調(diào)度策略對于保證系統(tǒng)的安全和提高風(fēng)電的消納水平尤其重要。在時間尺度上,電力系統(tǒng)有功調(diào)度包括基于預(yù)測信息的超前調(diào)度計劃和針
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