發(fā)布時間：2019-06-12 14:22

【摘要】：近年來,我國用電負(fù)荷持續(xù)增長,風(fēng)電裝機規(guī)模逐年擴大,負(fù)荷峰谷差不斷增大。在三北地區(qū)電網(wǎng)中,裝機以火電為主,水電比例較小,電網(wǎng)調(diào)峰能力不足,從而導(dǎo)致了大量棄風(fēng)的發(fā)生。調(diào)峰能力不足已成為當(dāng)前電網(wǎng)所面臨的首要問題,為此本文提出通過改進(jìn)上網(wǎng)電價來激勵火電機組調(diào)峰的方法。 本文介紹了我國各階段上網(wǎng)電價的發(fā)展歷史,并對各類上網(wǎng)電價的形成機制進(jìn)行了分析,分析表明,現(xiàn)階段我同上網(wǎng)電價由于單一制、不分時段,難以激勵電源加納可再生能源接納,為此,提出了對上網(wǎng)電價實行兩部制與峰谷分時電價的改進(jìn)思路。 本文建立了發(fā)電側(cè)兩部制峰谷標(biāo)桿電價模型。該模型采用兩部制電價代替現(xiàn)有單一制電價,解決了單一制電價中因分?jǐn)偣潭ǔ杀径鵁o法激勵調(diào)峰的問題；電量電價采用峰谷分時電價方式,并根據(jù)系統(tǒng)邊際成本和邊際價值進(jìn)行制定,實現(xiàn)了對電廠調(diào)峰填谷的激勵作用；容量電價作為電量電價的補充,采用資本金內(nèi)部收益率法進(jìn)行確定,保證了電廠對固定成本的回收；電量電價和容量電價均采用標(biāo)桿電價形式,實現(xiàn)了對企業(yè)相互競爭的激勵。 算例分析中,先對東北電網(wǎng)的火電裝機情況進(jìn)行了具體分析,驗證了本文電價模型中電量電價的調(diào)峰激勵性和容量電價的成本回收作用的有效性,又對比了火電機組利用小時數(shù)降低的情況下本文電價模型相對于現(xiàn)有標(biāo)桿電價的優(yōu)勢,最后驗證了本文電價模型對激勵小機組啟停調(diào)峰的有效性。
[Abstract]:In recent years, the power load in China continues to increase, the scale of wind power installation is expanding year by year, and the load peak and valley difference is increasing. In the power grid of Sanbei area, the installation is mainly thermal power, the proportion of hydropower is small, and the peak shaving capacity of the power grid is insufficient, which leads to the occurrence of a large number of abandoned wind. The shortage of peak shaving capacity has become the primary problem faced by the current power grid. Therefore, this paper proposes a method to stimulate the peak shaving of thermal power units by improving the online electricity price. This paper introduces the development history of feed-in electricity price in China, and analyzes the formation mechanism of all kinds of feed-in electricity price. The analysis shows that it is difficult to encourage the power supply to accept renewable energy in Ghana because of the single system at the present stage. Therefore, this paper puts forward the improvement ideas of implementing two-part system and peak-valley time-sharing electricity price for feed-in electricity price. In this paper, two models of peak and valley benchmarking electricity price on the power generation side are established. In this model, the two-part electricity price is used to replace the existing single system price, which solves the problem that the peak and valley time-sharing electricity price can not be excited in the single system electricity price, and the power price is formulated according to the marginal cost and marginal value of the system, which realizes the incentive effect of peak-shaving and valley-filling in power plant. As a supplement of electricity price, capacity electricity price is determined by capital internal income rate method, which ensures the recovery of fixed cost in power plant, and both electricity price and capacity electricity price adopt the form of benchmark electricity price, which realizes the incentive to enterprises to compete with each other. In the analysis of the example, the thermal power installation situation of Northeast Power Grid is analyzed in detail, and the effectiveness of the peak shaving incentive of the electricity price and the cost recovery of the capacity electricity price in this electricity price model is verified, and the advantages of the electricity price model compared with the existing benchmark electricity price when the utilization hours of the thermal power units are reduced are compared. Finally, the effectiveness of the electricity price model in motivating small units to start and stop peak shaving is verified.
【學(xué)位授予單位】：大連理工大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2013
【分類號】：F426.61

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