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  本文關(guān)鍵詞：考慮可中斷負荷的機組組合優(yōu)化建模及其應(yīng)用研究　出處：《華北電力大學(xué)》2014年碩士論文　論文類型：學(xué)位論文

  更多相關(guān)文章： 機組組合 源荷互動 分布式電源 優(yōu)化調(diào)度

【摘要】：機組組合是制定日前調(diào)度計劃的重要內(nèi)容,主要是確定機組的有功出力和啟停狀態(tài)。傳統(tǒng)的機組組合已經(jīng)很難滿足調(diào)度出現(xiàn)的新問題。在智能電網(wǎng)大力建設(shè)背景下,需求響應(yīng)成為重要的互動資源。本文在源荷互動原理的基礎(chǔ)上,研究了基于可中斷的機組組合優(yōu)化模型,并將優(yōu)化模型應(yīng)用在實際算例中,旨在取得經(jīng)濟、安全、環(huán)保等多方效益的最優(yōu)。具體包括以下幾個方面： 首先,新能源發(fā)電為電網(wǎng)運行帶來了挑戰(zhàn),尤其是風(fēng)電的隨機性、間歇性和反調(diào)峰特征為調(diào)度運行造成的困難。負荷側(cè)資源由于智能電網(wǎng)的建設(shè)具備了參與系統(tǒng)運行的硬件基礎(chǔ),極大豐富了可調(diào)度資源,調(diào)度的對象應(yīng)從電源側(cè)發(fā)展到負荷側(cè),在此背景下源荷互動調(diào)度原理應(yīng)運而生。 其次,分析需求響應(yīng)不同互動手段的優(yōu)缺點和適用范圍,提出了負荷側(cè)參與系統(tǒng)運行的基本原則,充實了源荷互動的互動機制；為電力公司和用戶分別設(shè)計了參與活動的具體流程,指出整個流程的重點工作和每個階段的重點工作內(nèi)容；比較傳統(tǒng)調(diào)度模式和源荷互動模式下建立數(shù)學(xué)模型所需要考慮的因素。 再次,選取可中斷負荷融入到機組組合中,詳細分析可中斷負荷項目部署所需考慮的關(guān)鍵因素,包括用戶的選擇、提前通知時間、中斷持續(xù)時間、補償程度等,建立考慮可中斷負荷的機組組合優(yōu)化模型。 最后,以一個7機系統(tǒng)并結(jié)合某地實際負荷數(shù)據(jù),采取分支定界法對數(shù)學(xué)優(yōu)化模型進行算例仿真運算,算例結(jié)果表明所建模型有效改善了負荷形狀,降低了系統(tǒng)運行成本,減少效率差的小型機組的頻繁啟停,同時用戶還獲得收益,說明考慮可中斷負荷的機組組合優(yōu)化調(diào)度模型有利于電力系統(tǒng)的可靠經(jīng)濟運行。
[Abstract]:Unit combination is an important part of pre-day scheduling plan. It is mainly to determine the active power and start-stop state of the unit. The traditional unit combination has been difficult to meet the new problems of dispatching. In the context of smart grid construction. Demand response has become an important interactive resource. Based on the principle of source-load interaction, this paper studies the optimal model of unit combination based on interruptible, and applies the optimization model to practical examples in order to obtain economy. Safety, environmental protection and other benefits of the best. Specifically including the following aspects: First of all, new energy generation brings challenges to grid operation, especially the randomness of wind power. Intermittent and backpeak-shaving characteristics are the difficulties caused by dispatching operation. Load side resources have the hardware foundation to participate in the system operation because of the construction of smart grid, which greatly enrich the dispatching resources. The object of scheduling should be developed from power side to load side. Under this background, the principle of source-load interaction scheduling emerges as the times require. Secondly, the paper analyzes the advantages and disadvantages of different interactive means of response to demand, and puts forward the basic principles of load side participating in the operation of the system, which enriches the interactive mechanism of source-load interaction. The specific process of participating activities is designed for the power company and the user respectively, and the key work of the whole process and the key work content of each stage are pointed out. The factors that need to be considered in establishing mathematical model under traditional scheduling mode and source-load interaction mode are compared. Thirdly, the interruptible load is selected to be integrated into the unit portfolio, and the key factors that need to be considered in the deployment of interruptible load project are analyzed in detail, including user selection, advance notice time and interruption duration. The optimal model of unit combination considering interruptible load is established. Finally, with a 7-machine system and the actual load data of a certain place, the branch and bound method is used to simulate the mathematical optimization model. The simulation results show that the proposed model can effectively improve the load shape. It reduces the operating cost of the system, reduces the frequent start and stop of small units with low efficiency, and at the same time, the users also get the income. It is shown that the optimal dispatching model of unit combination considering interruptible load is beneficial to the reliable and economical operation of power system.
【學(xué)位授予單位】：華北電力大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2014
【分類號】：TM73

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