【摘要】：在許多偏遠(yuǎn)地區(qū)和獨(dú)立海島上,受地理?xiàng)l件的限制,建設(shè)與大電網(wǎng)互聯(lián)的常規(guī)配電系統(tǒng)比較困難；或者已建設(shè)的配電系統(tǒng)比較薄弱,滿足不了供電可靠性。在國(guó)家電網(wǎng)公司“堅(jiān)強(qiáng)智能電網(wǎng)”發(fā)展戰(zhàn)略的背景下,通過(guò)微電網(wǎng)技術(shù),利用當(dāng)?shù)刎S富的風(fēng)電和光伏等清潔間歇性能源,構(gòu)建小型地區(qū)電網(wǎng),可以有效滿足當(dāng)?shù)氐呢?fù)荷需求。但是風(fēng)力發(fā)電和光伏發(fā)電的發(fā)電方式不同于傳統(tǒng)的常規(guī)電源,具有明顯的波動(dòng)性、隨機(jī)性和間歇性,對(duì)電網(wǎng)的規(guī)劃建設(shè)和安全穩(wěn)定運(yùn)行提出了新的挑戰(zhàn)。為了在滿足負(fù)荷需求的同時(shí)保證電網(wǎng)的供電可靠性,建設(shè)堅(jiān)強(qiáng)智能電網(wǎng),亟需對(duì)含間歇式電源的微電網(wǎng)建設(shè)及其協(xié)調(diào)控制技術(shù)進(jìn)行研究。 本文主要分析國(guó)內(nèi)外間歇性電源接入及微電網(wǎng)工程現(xiàn)狀,對(duì)含間歇性能源的海島微電網(wǎng)協(xié)調(diào)控制及優(yōu)化運(yùn)行技術(shù)進(jìn)行了研究,分析了分布式電源的成本和社會(huì)效益度量,構(gòu)建了微電網(wǎng)經(jīng)濟(jì)調(diào)度模型,對(duì)控制和調(diào)度策略進(jìn)行了深入研究,并以砣磯島微電網(wǎng)應(yīng)用示范工程為例,分析了微電網(wǎng)工程的整體技術(shù)方案,提出了并網(wǎng)/孤網(wǎng)雙模式運(yùn)行綜合控制方案,并研究了方案各部分的規(guī)劃設(shè)計(jì)和具體實(shí)施。目前國(guó)內(nèi)外微電網(wǎng)的研究比較多,但工程實(shí)踐較少。長(zhǎng)島分布式電源接入及微電網(wǎng)示范工程,探索了在分布式電源接入、微電網(wǎng)協(xié)調(diào)控制策略等方面的內(nèi)容,具有十分重要的研究?jī)r(jià)值。 實(shí)際結(jié)果表明,本文提出的方案能夠在滿足負(fù)荷需求的同時(shí)有效保證電網(wǎng)的供電可靠性,符合實(shí)際工程要求。對(duì)間歇性能源微電網(wǎng)建設(shè)及協(xié)調(diào)控制技術(shù)的研究,在理論和工程實(shí)踐的層面上都得到了驗(yàn)證,對(duì)未來(lái)的電網(wǎng)建設(shè)提供了寶貴經(jīng)驗(yàn)。
[Abstract]:In many remote areas and independent islands, it is difficult to build a conventional distribution system interconnected with a large power grid due to geographical constraints, or the distribution system that has been built is weak and can not meet the reliability of power supply. Under the background of "strong smart grid" development strategy of State Grid Company, through microgrid technology, using abundant local clean intermittent energy, such as wind power and photovoltaic, to construct small regional power grid, can effectively meet the local load demand. However, wind power generation and photovoltaic generation are different from the traditional conventional power supply, with obvious volatility, randomness and intermittency, which poses a new challenge to the planning and construction of power grid and the safe and stable operation. In order to meet the demand of load and ensure the reliability of power supply and build a strong smart grid, it is urgent to study the construction of micro-grid with intermittent power supply and its coordinated control technology. This paper mainly analyzes the current situation of intermittent power supply access and microgrid engineering at home and abroad, studies the coordinated control and optimal operation technology of island microgrid with intermittent energy, and analyzes the cost and social benefits of distributed power generation. The economic dispatching model of microgrid is constructed, and the control and dispatching strategies are deeply studied. Taking the application demonstration project of Tuoji Island microgrid as an example, the overall technical scheme of microgrid engineering is analyzed. The integrated control scheme of grid-connected / isolated network operation is proposed, and the planning, design and implementation of each part of the scheme are studied. At present, there are many researches on microgrid at home and abroad, but the engineering practice is less. The long Island distributed power supply access and microgrid demonstration project have explored the contents of distributed power access and coordination control strategy of microgrid, which has very important research value. The practical results show that the proposed scheme can effectively ensure the power supply reliability of the power network and meet the practical engineering requirements while satisfying the load demand. The research on intermittent energy micro-grid construction and coordinated control technology has been verified in theory and engineering practice, which provides valuable experience for future power grid construction.
【學(xué)位授予單位】：山東大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類(lèi)號(hào)】：TM732

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