發(fā)布時(shí)間：2018-05-03 02:20

  本文選題：新能源機(jī)組 + 協(xié)調(diào)優(yōu)化�。� 參考：《華北電力大學(xué)》2014年碩士論文

【摘要】：近五年來(lái)以風(fēng)電為代表的新能源裝機(jī)容量在山東電網(wǎng)快速發(fā)展,但風(fēng)電出力因較強(qiáng)的間歇性、隨機(jī)性及波動(dòng)性,無(wú)法像常規(guī)發(fā)電機(jī)組一樣靈活調(diào)度。隨著大規(guī)模新能源電力的并網(wǎng)發(fā)電,山東電網(wǎng)在系統(tǒng)調(diào)峰、調(diào)頻計(jì)劃、備用安排等方面面臨新的挑戰(zhàn)。針對(duì)山東電網(wǎng)調(diào)度的實(shí)際需求,迫切需要協(xié)調(diào)優(yōu)化現(xiàn)有發(fā)電調(diào)度決策模式。 本文提出了以最小成本、風(fēng)險(xiǎn)控制、公平消納大規(guī)模風(fēng)電為目標(biāo)的調(diào)度模式,實(shí)現(xiàn)各類型能源機(jī)組的協(xié)調(diào)運(yùn)行。充分考慮風(fēng)電出力波動(dòng)的特性,基于區(qū)間數(shù)理論建立了風(fēng)電出力的全場(chǎng)景模型；基于風(fēng)電期望出力的大概率事件制定日前發(fā)電計(jì)劃,以最小成本的模型實(shí)現(xiàn)發(fā)電調(diào)度的風(fēng)險(xiǎn)預(yù)防預(yù)控,預(yù)留適應(yīng)未來(lái)風(fēng)電波動(dòng)極端運(yùn)行的優(yōu)化調(diào)度空間;采用信息無(wú)損的關(guān)鍵場(chǎng)景識(shí)別方法,應(yīng)對(duì)含大規(guī)模風(fēng)電接入帶來(lái)的計(jì)算復(fù)雜性所帶來(lái)的挑戰(zhàn),包絡(luò)所有風(fēng)電出力的極端運(yùn)行場(chǎng)景。 在考慮風(fēng)電出力波動(dòng)對(duì)發(fā)電計(jì)劃影響的基礎(chǔ)上,采用電量協(xié)調(diào)與成本控制的日內(nèi)滾動(dòng)發(fā)電計(jì)劃模式,建立全景日內(nèi)滾動(dòng)發(fā)電計(jì)劃模型,以日前發(fā)電計(jì)劃為基礎(chǔ),通過(guò)約束條件的選擇,滿足兩種模式下滾動(dòng)發(fā)電計(jì)劃的編制。 通過(guò)實(shí)施本文提出的優(yōu)化方案,實(shí)現(xiàn)了風(fēng)電出力全場(chǎng)景的包容性、全場(chǎng)景日前發(fā)電計(jì)劃編制的高效性、常規(guī)機(jī)組日計(jì)劃電量跟蹤的精準(zhǔn)性、常規(guī)機(jī)組跟蹤風(fēng)電波動(dòng)的公平性,全面提高了電網(wǎng)調(diào)度運(yùn)行的最優(yōu)性、公平性和高效性,大幅度提升了電網(wǎng)消納大規(guī)模新能源發(fā)電的能力。
[Abstract]:In recent five years, the installed capacity of new energy represented by wind power has developed rapidly in Shandong power grid, but due to its strong intermittence, randomness and volatility, it is unable to operate flexibly as conventional generators. With the large-scale grid-connected generation of new energy power, Shandong Power Grid faces new challenges in system peak-shaving, FM planning, standby arrangement, and so on. According to the actual demand of Shandong power grid dispatching, it is urgent to coordinate and optimize the existing generation scheduling decision mode. In this paper, a scheduling mode aiming at minimum cost, risk control and fair absorption of large scale wind power is proposed to realize the coordinated operation of all kinds of energy generating units. Considering the characteristics of wind power output fluctuation, the full scenario model of wind power output is established based on interval number theory, and the large probability event based on expected wind power force is used to formulate the pre-day generation plan. The minimum cost model is used to prevent and control the risk of generation scheduling, and the optimal scheduling space is reserved for the extreme operation of wind power fluctuations in the future, and the information lossless critical scenario identification method is adopted. To deal with the challenges posed by the computational complexity of large-scale wind power access, all extreme operating scenarios of wind power generation are enveloped. On the basis of considering the influence of wind power output fluctuation on the generation plan, a panoramic intra-day rolling generation plan model is established by adopting the model of intra-day rolling generation planning, which is based on the pre-day generation plan, which is based on the coordination and cost control of power generation. Through the selection of constraints, the rolling generation plan can be worked out in two modes. Through the implementation of the optimization scheme proposed in this paper, the full scenario of wind power generation is inclusive, the efficiency of power generation planning is high, the accuracy of daily energy tracking of conventional units is accurate, and the fairness of wind power fluctuation tracking is achieved. It improves the optimality fairness and efficiency of power grid dispatching and greatly improves the power grid's ability to absorb large scale new energy generation.
【學(xué)位授予單位】：華北電力大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類號(hào)】：TM614

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