本文選題：主動配電網(wǎng) + 優(yōu)化調(diào)度運行��； 參考：《上海電力學(xué)院》2017年碩士論文

【摘要】：環(huán)境污染與能源危機問題的加劇,使得綠色環(huán)保的可再生能源分布式發(fā)電技術(shù)迅速崛起。適應(yīng)分布式電源(DG)的規(guī)�；�、提高配電網(wǎng)對DG的兼容性與消納能力、促進網(wǎng)絡(luò)的優(yōu)化運行是發(fā)展主動配電網(wǎng)(ADN)的核心價值。ADN的優(yōu)化調(diào)度運行需要統(tǒng)籌多種可控資源、實現(xiàn)“源-網(wǎng)-荷”的良性互動、妥善處理調(diào)度所面臨的多種不確定性因素;ADN的靜態(tài)安全分析應(yīng)重點把握網(wǎng)絡(luò)運行的時序特性,綜合考慮ADN的孤島運行和主動管理對系統(tǒng)安全性提高的積極影響。本文針對ADN的優(yōu)化調(diào)度與靜態(tài)安全分析展開了深入的研究,主要成果如下:(1)提出了一種“源-網(wǎng)-荷”相協(xié)調(diào)的主動配電網(wǎng)經(jīng)濟調(diào)度方法�；凇霸�-網(wǎng)-荷”的三元協(xié)調(diào)互動,以DG、儲能、靈活網(wǎng)絡(luò)拓撲、柔性負荷削減與平移為調(diào)度的控制手段,計及購電成本、損耗成本、需求側(cè)管理成本,建立了以運行成本最低為目標(biāo)的ADN日前經(jīng)濟調(diào)度模型;應(yīng)用改進和聲搜索算法進行模型的求解;通過算例分析驗證了所提調(diào)度方法的正確性和有效性。(2)在經(jīng)濟調(diào)度研究的基礎(chǔ)上,提出了一種考慮越限風(fēng)險的主動配電網(wǎng)日前優(yōu)化調(diào)度運行方法。在日前調(diào)度階段考慮風(fēng)光荷的不確定性所導(dǎo)致的運行越限風(fēng)險,兼顧調(diào)度經(jīng)濟性與安全性,建立了運行成本與越限風(fēng)險最小的多目標(biāo)日前優(yōu)化調(diào)度模型,計及DG、儲能、無功電壓設(shè)備、靈活網(wǎng)絡(luò)拓撲等ADN調(diào)度手段;用理想點法來處理多目標(biāo)模型,以改進和聲搜索算法為優(yōu)化問題的求解工具,并基于半不變量法隨機潮流實現(xiàn)越限風(fēng)險指標(biāo)的計算;應(yīng)用所提調(diào)度方法來求解ADN測試算例的優(yōu)化調(diào)度運行問題,深入剖析了調(diào)度方案的越限風(fēng)險,并通過對比與分析,驗證了所提調(diào)度方法的合理性與優(yōu)越性。(3)提出了一種考慮時序特性與孤島運行的主動配電網(wǎng)靜態(tài)安全分析方法。計及DG、儲能和可平移負荷,建立了適用于ADN靜態(tài)安全分析的元件時序模型和安全評估指標(biāo);考慮故障發(fā)生時段和故障期間網(wǎng)絡(luò)運行狀態(tài)兩方面的時序性,計及ADN的孤島運行與主動管理,提出了一種針對主動配電網(wǎng)N-1支路故障的靜態(tài)安全分析方法;在算例中,應(yīng)用所提評估指標(biāo)和分析方法,定量評估了不同時段、不同支路和系統(tǒng)總體的安全性,實現(xiàn)了對ADN薄弱時段和薄弱支路的準(zhǔn)確定位。
[Abstract]:With the aggravation of environmental pollution and energy crisis, the green renewable energy distributed power generation technology is rising rapidly. To adapt to the large-scale integration of distributed power generation (DG), to improve the compatibility and absorption ability of distribution network to DG and to promote the optimal operation of the network is the core value of the development of active distribution network ADN. The optimal dispatching operation of ADN needs to coordinate a variety of controllable resources. To realize the benign interaction of "source-network-load", the static security analysis of ADN should focus on the timing characteristics of network operation. Considering the positive effect of ADN islanding operation and active management on system security. In this paper, the optimal dispatch and static security analysis of ADN are deeply studied. The main results are as follows: 1) A coordinated method of "source-network-load" for economic dispatch of active distribution network is proposed. Based on the "source-network-load" ternary coordinated interaction, with DG, energy storage, flexible network topology, flexible load reduction and translation as scheduling control means, taking into account the purchase cost, loss cost, demand-side management costs, The ADN pre-day economic scheduling model with the lowest running cost is established, and the improved harmony search algorithm is used to solve the model. The validity and validity of the proposed dispatching method are verified by a numerical example. Based on the research of economic dispatch, a new optimal dispatching method for active distribution network is proposed, which takes into account the risk of overstepping. In the pre-day scheduling stage, considering the operation overrun risk caused by the uncertainty of wind-load, taking into account the economy and security of scheduling, a multi-objective pre-day optimal scheduling model with minimum operating cost and overrun risk is established, which takes DGand energy storage into account. The ADN scheduling methods, such as reactive power and voltage equipment, flexible network topology and so on, are used to deal with the multi-objective model by using the ideal point method, and the improved harmonic search algorithm is used as the solution tool for the optimization problem. Based on the semi-invariant stochastic power flow, the calculation of the risk index is realized, and the proposed scheduling method is applied to solve the optimal scheduling problem of ADN test cases, and the overrun risk of the scheduling scheme is deeply analyzed, and the comparison and analysis are carried out. The rationality and superiority of the proposed dispatching method are verified. (3) A static security analysis method for active distribution network considering timing characteristics and islanding operation is proposed. Considering DG, energy storage and translatable load, the component timing model and safety evaluation index for ADN static security analysis are established, and the time series of network operation state during fault occurrence and failure are considered. Taking into account the islanding operation and active management of ADN, a static safety analysis method for N-1 branch fault of active distribution network is proposed. The security of different branches and systems realizes the accurate location of weak period and weak branch of ADN.
【學(xué)位授予單位】：上海電力學(xué)院
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2017
【分類號】：TM73

【參考文獻】

相關(guān)期刊論文 前10條

1 袁修廣;黃純;;計及故障停電經(jīng)濟損失的配電網(wǎng)風(fēng)險評估[J];電力系統(tǒng)及其自動化學(xué)報;2016年08期

2 黃f，

本文編號：1994541