【摘要】：隨著風(fēng)力、光伏等可再生能源和高效清潔的化石燃料在內(nèi)的新型發(fā)電技術(shù)的普及,微網(wǎng)系統(tǒng)以其供電靈活、污染少、可靠性高的優(yōu)勢得以進(jìn)一步發(fā)展。由于微網(wǎng)系統(tǒng)內(nèi)風(fēng)力發(fā)電和光伏發(fā)電受自然條件的影響較大,其輸出功率的波動(dòng)性和間歇性給微網(wǎng)系統(tǒng)的穩(wěn)定運(yùn)行和安全性帶來了極大的挑戰(zhàn),加之目前風(fēng)電功率和光伏發(fā)電功率預(yù)測精度普遍偏低,因此微網(wǎng)系統(tǒng)內(nèi)的日前環(huán)保經(jīng)濟(jì)調(diào)度就變得尤為重要。另外大規(guī)模風(fēng)電入網(wǎng)后其反調(diào)峰特性日益明顯,加劇了微網(wǎng)調(diào)度運(yùn)行過程中的調(diào)峰問題,增加了系統(tǒng)運(yùn)行的經(jīng)濟(jì)成本,影響微網(wǎng)系統(tǒng)供電可靠性,合理經(jīng)濟(jì)的日前調(diào)度計(jì)劃對(duì)于改善負(fù)荷高峰期供電緊張的局面具有十分重要的意義。 本文首先從微網(wǎng)系統(tǒng)的發(fā)電側(cè)經(jīng)濟(jì)成本和環(huán)境成本出發(fā),研究了包含風(fēng)力發(fā)電、光伏發(fā)電、微型燃?xì)廨啓C(jī)、燃料電池和蓄電池等分布式電源的微網(wǎng)系統(tǒng)在并網(wǎng)和孤網(wǎng)狀態(tài)下的環(huán)保經(jīng)濟(jì)調(diào)度優(yōu)化問題。孤網(wǎng)狀態(tài)下,由于風(fēng)電和光伏發(fā)電的波動(dòng)性和間歇性缺陷降低了微網(wǎng)系統(tǒng)供電的可靠性,本文采用風(fēng)電功率和光伏發(fā)電功率的概率分布特性來描述系統(tǒng)中存在的不確定性因素,提出失負(fù)荷風(fēng)險(xiǎn)指標(biāo)和風(fēng)光浪費(fèi)風(fēng)險(xiǎn)指標(biāo)建立了考慮發(fā)電經(jīng)濟(jì)性和環(huán)保性的多目標(biāo)模型,保證微網(wǎng)供電的可靠性和可再生能源的高效利用。并網(wǎng)狀態(tài)下有大電網(wǎng)的支撐,新能源發(fā)電的波動(dòng)性影響減小,大規(guī)模風(fēng)電接入后其反調(diào)峰特性增大了微網(wǎng)系統(tǒng)和電網(wǎng)系統(tǒng)的調(diào)峰難度,本文以消費(fèi)者心理學(xué)為理論基礎(chǔ),在分時(shí)電價(jià)政策的激勵(lì)下預(yù)測用戶響應(yīng)負(fù)荷曲線,建立了用戶側(cè)互動(dòng)模式下微網(wǎng)調(diào)度計(jì)劃模型,綜合考慮微網(wǎng)系統(tǒng)的發(fā)電成本和用戶用電滿意度兩目標(biāo),通過微網(wǎng)系統(tǒng)內(nèi)用戶側(cè)的互動(dòng)作用減小了調(diào)度過程中的峰谷差值,降低了發(fā)電過程的發(fā)電成本,并在一定程度上保證了用戶用電方式的滿意度。
[Abstract]:With the popularity of new generation technologies, such as wind, photovoltaic, and efficient and clean fossil fuels, microgrid systems have been further developed due to their advantages of flexible power supply, less pollution and high reliability. Because wind power generation and photovoltaic power generation in microgrid system are greatly affected by natural conditions, the fluctuation and intermittency of output power bring great challenges to the stability and security of micro-grid system. In addition, the prediction accuracy of wind power and photovoltaic power generation is generally low, so the environmental protection and economic dispatch in micro-grid system becomes more and more important. In addition, the anti-peak-shaving characteristic of large-scale wind power is becoming more and more obvious, which exacerbates the peak-shaving problem in the operation process of micro-grid dispatching, increases the economic cost of system operation, and affects the reliability of micro-grid power supply. Reasonable and economical pre-day dispatching plan is of great significance to improve the situation of power supply stress during peak load period. In this paper, starting from the economic cost and environmental cost of microgrid system, the research includes wind power generation, photovoltaic power generation and micro gas turbine. Environmental and economic scheduling optimization of microgrid systems with distributed power sources such as fuel cells and batteries under grid-connected and isolated grid conditions. Because the fluctuation and intermittent defects of wind power and photovoltaic power reduce the reliability of micro-grid power supply, the probabilistic distribution characteristics of wind power and photovoltaic power are used to describe the uncertain factors in the system. A multi-objective model considering the economy and environmental protection of power generation is proposed to ensure the reliability of micro-grid power supply and the efficient utilization of renewable energy. With the support of large power grid, the fluctuation of new energy generation is reduced. The anti-peak-shaving characteristic of large-scale wind power system increases the difficulty of peak-shaving in micro-grid system and power grid system. This paper takes consumer psychology as the theoretical basis. Under the incentive of time-sharing price policy, the user response load curve is forecasted, and the model of micro-grid scheduling plan in user-side interaction mode is established. The objectives of generating cost and user satisfaction of micro-grid system are considered synthetically. Through the interaction of the user side in the microgrid system, the peak and valley difference in the dispatching process is reduced, the generation cost is reduced, and the satisfaction of the user is guaranteed to a certain extent.
【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)】：TM73

【參考文獻(xiàn)】

相關(guān)期刊論文 前3條

1 劉智,端木京順,王強(qiáng),王成林;基于熵權(quán)多目標(biāo)決策的方案評(píng)估方法研究[J];數(shù)學(xué)的實(shí)踐與認(rèn)識(shí);2005年10期

2 周瑋;孫輝;顧宏;馬千;陳曉東;;計(jì)及風(fēng)險(xiǎn)備用約束的含風(fēng)電場電力系統(tǒng)動(dòng)態(tài)經(jīng)濟(jì)調(diào)度[J];中國電機(jī)工程學(xué)報(bào);2012年01期

3 劉小聰;王蓓蓓;李揚(yáng);姚建國;楊勝春;;智能電網(wǎng)下計(jì)及用戶側(cè)互動(dòng)的發(fā)電日前調(diào)度計(jì)劃模型[J];中國電機(jī)工程學(xué)報(bào);2013年01期

，

本文編號(hào)：2369730