發(fā)布時間：2018-03-22 01:07

  本文選題：分布式電源　切入點：配電網(wǎng)　出處：《華北電力大學》2017年碩士論文　論文類型：學位論文

【摘要】：大電網(wǎng)與分布式發(fā)電技術相結合將是電力系統(tǒng)未來發(fā)展的趨勢,它不僅滿足經濟高速發(fā)展的需求,也符合我國可持續(xù)發(fā)展的戰(zhàn)略。分布式電源的應用能夠降低用戶費用、改善電能質量、供電更加靈活、提高供電的可靠性和可持續(xù)性的眾多優(yōu)點,分布式電源能夠與傳統(tǒng)配電網(wǎng)相互補充、取優(yōu)補短,是綜合利用清潔能源、為負荷提供可靠供電和穩(wěn)定電壓的最佳選擇。分布式電源的發(fā)展規(guī)模越來越大,它對地區(qū)電網(wǎng)的節(jié)點電壓、線路潮流和配網(wǎng)規(guī)劃都帶來了巨大影響。并且分布式電源不同配置方式對配網(wǎng)的影響程度不同,分布式電源的安裝位置和安裝容量等必須慎重選擇,以使分布式電源對地區(qū)電網(wǎng)的影響降到最低。分布式電源的接入改變了地區(qū)電網(wǎng)絡原有的網(wǎng)架結構,對地區(qū)電網(wǎng)絡的潮流有極大影響。并且分布式電源的接入對地區(qū)電網(wǎng)未來的規(guī)劃帶來了實質性的影響,網(wǎng)絡規(guī)劃不得不考慮分布式電源的因素。分析分布式電源的接入對地區(qū)電網(wǎng)絡各個方面的影響,是進行分布式電源接入地區(qū)電網(wǎng)研究的前提,因此本文的研究具有一定的現(xiàn)實意義。本文首先對分布式電源進行了詳細介紹,對不同種類的分布式電源的發(fā)電方式、發(fā)電特性以及目前發(fā)展狀況進行了深入研究。而后從理論上詳細分析了分布式電源的接入會對原有電網(wǎng)帶了哪些影響,尤其是對分布式電源接入對配網(wǎng)的節(jié)點電壓和網(wǎng)絡損耗進行了詳細分析。之后結合沈陽地區(qū)電網(wǎng),對分布式電源接入地區(qū)電網(wǎng)產生的影響做了詳盡的仿真分析,對不同接入位置、不同接入容量和不同運行功率因數(shù)的分布式電源對地區(qū)電網(wǎng)節(jié)點電壓和網(wǎng)絡損耗的影響,通過仿真用數(shù)據(jù)予以說明。在最后提出了一種基于網(wǎng)損精確計算公式,而推導出的分布式電源最優(yōu)配置方法,通過此方法能夠計算出地區(qū)電網(wǎng)接入分布式電源的最佳接入位置、接入容量和最優(yōu)運行功率因數(shù)。
[Abstract]:With the large power grid and distributed generation technology will be the future development trend of electric power system, it not only meets the demand of the rapid economic development, but also conforms to China's sustainable development strategy. The application of distributed power supply can reduce user costs, improve the quality of power supply, more flexible and improve the reliability of power supply has many advantages and sustainability. Distributed power supply can complement each other with the traditional distribution network, the advantages and weaknesses, is the comprehensive utilization of clean energy, to provide the best choice of reliable power supply and stable voltage for load. More and more large scale distributed power development, it is the regional power grid node voltage, power flow and distribution network planning has brought great influence. And the degree of distributed power supply different effects on different configuration of distribution network, distributed power installation location and installation capacity must be carefully chosen, in order to make the distributed power on Influence of the regional power grid to a minimum. DG changed area electrical network original grid structure has a great impact on regional electric network trend. And DG brings a substantial impact on the future of the regional power grid planning, network planning to consider the factors affecting access analysis of distributed power. Distributed power of electric network in various aspects, is the precondition for the research on distributed power grid access area, so this study has a certain practical significance. This paper makes a detailed introduction of the distributed power generation mode, the different kinds of the distributed power, in-depth research on power generation characteristics and the current development situation and then. In theory a detailed analysis of the DG which will take effect on the original grid, especially for distributed power The node voltage and network loss of distribution network are analyzed in detail. After considering the impact on the Shenyang power grid, grid distributed power access area to do a detailed analysis of the simulation of different access location, influence of distributed power supply different access capacity and different operating power factor of power grid node voltage and network loss through the simulation, the data will be explained. At last this paper proposes a precise calculation formula based on distributed power network loss, optimal allocation method is derived, the method can be used to calculate the regional power grid connected into the best access location of the distributed power supply, access capacity and optimal operation of power factor.

【學位授予單位】：華北電力大學
【學位級別】：碩士
【學位授予年份】：2017
【分類號】：TM61;TM732

【參考文獻】

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本文編號：1646365