本文選題：自然災(zāi)害 + 防災(zāi)調(diào)度��； 參考：《浙江大學(xué)》2016年碩士論文

【摘要】：現(xiàn)代社會對電能供應(yīng)的可靠性需求越來越高,一旦電力供應(yīng)中斷將造成難以估量的損失。極端外部自然災(zāi)害對電網(wǎng)的安全運行造成了嚴(yán)重的威脅,充分地了解我國電網(wǎng)當(dāng)前的防災(zāi)減災(zāi)技術(shù)、方法與措施,歸納總結(jié)現(xiàn)有方法的問題與不足,利用大數(shù)據(jù)時代下的理論與技術(shù)來改善現(xiàn)狀、設(shè)計開發(fā)新的防御功能,對于提高電網(wǎng)抵御自然災(zāi)害的能力意義重大,為此本文開展了以下研究：首先,探討了我國電網(wǎng)的安全防御框架,詳細(xì)地總結(jié)了電網(wǎng)防災(zāi)減災(zāi)的現(xiàn)狀與問題。在歸納電網(wǎng)防災(zāi)大數(shù)據(jù)的基礎(chǔ)上,提出了基于大數(shù)據(jù)的電網(wǎng)防災(zāi)調(diào)度系統(tǒng)設(shè)計方案,旨在解決電網(wǎng)防災(zāi)調(diào)度方面現(xiàn)存的突出問題。方案詳細(xì)地設(shè)計了包括電網(wǎng)輸供電能力評估在內(nèi)的一系列重要功能,系統(tǒng)的數(shù)據(jù)流與邏輯決策、基于大數(shù)據(jù)平臺的軟件架構(gòu)等內(nèi)容,以達(dá)到提升電網(wǎng)防災(zāi)調(diào)度能力的目標(biāo)。其次,提出了一種計及主變可載性約束的三階段配電網(wǎng)供電能力評估方法。針對現(xiàn)有評估方法未能考慮主變可載能力的問題,建立了主變可載性約束模型,模型考慮變壓器的繞組熱點溫度約束、故障率約束及經(jīng)濟(jì)損益約束,通過定級風(fēng)險嚴(yán)重度等級對變壓器增容系數(shù)進(jìn)行風(fēng)險約束校驗。此外,針對現(xiàn)有評估方法難以適應(yīng)復(fù)雜多變的實際場景的問題,提出不同工況下的評估原則。方法包含預(yù)評估、約束分析、校驗評估三個階段,以重復(fù)潮流法為基礎(chǔ)進(jìn)行循環(huán)評估得到最終結(jié)果。兩個算例的仿真結(jié)果表明該方法可為不同場景下的配電網(wǎng)調(diào)度運行提供輔助決策建議。最后,在上述研究的基礎(chǔ)上,對貴陽地區(qū)電網(wǎng)多維度風(fēng)險調(diào)度與應(yīng)急指揮系統(tǒng)的工程開發(fā)與實現(xiàn)進(jìn)行詳實的介紹,包括系統(tǒng)的總體流程、數(shù)據(jù)接口、各功能模塊、開發(fā)與運行環(huán)境、硬件配置、后臺模塊的組織、人機界面效果等內(nèi)容,旨在為貴陽地區(qū)電網(wǎng)運行人員提供多樣化的防災(zāi)調(diào)度手段,提高電網(wǎng)的安全運行水平。
[Abstract]:The demand for the reliability of power supply is increasing in modern society. Once the power supply is interrupted, it will cause incalculable losses.The extreme external natural disasters pose a serious threat to the safe operation of the power grid, fully understand the current technology, methods and measures of disaster prevention and mitigation in China's power grid, and sum up the problems and shortcomings of the existing methods.It is of great significance to use the theory and technology under big data era to improve the present situation and to design and develop new defense functions to improve the power grid's ability to resist natural disasters. For this reason, this paper has carried out the following research: first of all,This paper discusses the security defense framework of China's power grid, and summarizes the present situation and problems of power grid disaster prevention and mitigation in detail.On the basis of summarizing big data's disaster prevention, the paper puts forward a design scheme of power network disaster prevention and dispatch system based on big data, which aims to solve the outstanding problems existing in power grid disaster prevention and dispatch.A series of important functions, such as power transmission and power transmission capability evaluation, system data flow and logic decision, and software architecture based on big data platform, are designed in detail to achieve the goal of improving power grid disaster prevention and dispatching capability.Secondly, a three-stage power supply capability evaluation method considering the load constraints of main transformer is proposed.In view of the failure of the existing evaluation methods to consider the loadability of the main transformer, a load constraint model of the main transformer is established. The model takes into account the temperature constraints of the windings of the transformer, the failure rate constraints and the economic profit and loss constraints.The capacity coefficient of transformer is checked by risk severity.In addition, in view of the problem that the existing evaluation methods are difficult to adapt to the complicated and changeable practical scenarios, the evaluation principles under different operating conditions are put forward.The method consists of three stages: pre-evaluation, constraint analysis and checkout evaluation. The final results are obtained by cyclic evaluation based on repeated power flow method.The simulation results of two examples show that the proposed method can provide auxiliary decision advice for dispatching operation of distribution network in different scenarios.Finally, on the basis of the above research, the engineering development and implementation of the multi-dimensional risk dispatching and emergency command system in Guiyang power network are introduced in detail, including the overall process of the system, the data interface, each functional module.The development and operation environment, hardware configuration, background module organization and man-machine interface effect are designed to provide a variety of disaster prevention and dispatch methods for the power grid operators in Guiyang area, and to improve the safe operation level of the power grid.
【學(xué)位授予單位】：浙江大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2016
【分類號】：TM73

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