本文選題：牽引特性　切入點(diǎn)：儲(chǔ)能系統(tǒng)　出處：《北京交通大學(xué)》2017年碩士論文　論文類型：學(xué)位論文

【摘要】：城市軌道交通列車具備低能耗、速度快、高環(huán)保等優(yōu)點(diǎn),是解決城市交通擁擠的有效手段。但由于城市軌道交通系統(tǒng)牽引用電功率波動(dòng)大,導(dǎo)致了牽引變電站設(shè)備容量利用率降低;并且牽引變電站能量流動(dòng)的單向性使大量再生制動(dòng)能量被浪費(fèi)。為了降低能耗、減少運(yùn)營(yíng)成本,將儲(chǔ)能技術(shù)應(yīng)用于軌道交通領(lǐng)域已經(jīng)成為國(guó)內(nèi)外的研究熱點(diǎn)。儲(chǔ)能系統(tǒng)具備靈活充放電的特點(diǎn),能平抑功率波動(dòng)并對(duì)再生能量進(jìn)行循環(huán)利用。利用混合儲(chǔ)能系統(tǒng)的互補(bǔ)特性,在滿足大功率充放電的同時(shí)提供能量存儲(chǔ)容量�；谏鲜霰尘�,本文根據(jù)列車實(shí)際運(yùn)行工況、功率數(shù)據(jù),圍繞地面式儲(chǔ)能系統(tǒng)在城軌交通中的容量配置和調(diào)度技術(shù)展開了研究。首先,研究了城軌列車的牽引特性和牽引策略。以單輛列車牽引計(jì)算為基礎(chǔ),結(jié)合列車運(yùn)行的發(fā)車時(shí)間間隔,建立了多車牽引功率計(jì)算模型,并以此模型模擬牽引變電站的負(fù)荷特性。在所建立的模型基礎(chǔ)上進(jìn)行了牽引計(jì)算,得出牽引變電站負(fù)荷功率值,從功率、頻率和能量的角度分析了不同發(fā)車時(shí)間間隔的牽引負(fù)荷特性,為地面式儲(chǔ)能系統(tǒng)的容量配置提供數(shù)據(jù)基礎(chǔ)。其次,針對(duì)牽引變電站地面式混合儲(chǔ)能系統(tǒng),采用傅里葉變換和傅里葉反變換的方法來(lái)進(jìn)行功率補(bǔ)償分配。以牽引變電站及地面式混合儲(chǔ)能系統(tǒng)的投資成本最小為優(yōu)化目標(biāo),構(gòu)建牽引變電站混合儲(chǔ)能系統(tǒng)容量?jī)?yōu)化配置計(jì)算模型,將功率分配策略融入粒子群算法進(jìn)行尋優(yōu)求解。然后,針對(duì)列車牽引負(fù)荷的實(shí)時(shí)波動(dòng),制定了基于低通濾波的實(shí)時(shí)調(diào)度策略。考慮儲(chǔ)能系統(tǒng)的實(shí)際工作狀態(tài),提出了基于儲(chǔ)能荷電狀態(tài)的儲(chǔ)能控制修正策略和過充過放保護(hù)策略,提高儲(chǔ)能系統(tǒng)的運(yùn)行穩(wěn)定性。搭建仿真模型進(jìn)行策略驗(yàn)證,結(jié)果表明實(shí)時(shí)調(diào)度策略可以滿足實(shí)時(shí)牽引負(fù)荷波動(dòng)需求,并能及時(shí)修正實(shí)時(shí)負(fù)荷波動(dòng)引起的儲(chǔ)能系統(tǒng)調(diào)度計(jì)劃偏差,避免儲(chǔ)能系統(tǒng)過充過放。最后,搭建了基于直流微網(wǎng)的城市交通傳動(dòng)系統(tǒng)試驗(yàn)平臺(tái)的監(jiān)控調(diào)度系統(tǒng)。從物理層到應(yīng)用層,設(shè)計(jì)了后臺(tái)管理系統(tǒng)數(shù)據(jù)交互接口,開發(fā)了實(shí)時(shí)監(jiān)控界面。通過平臺(tái)的監(jiān)控調(diào)度系統(tǒng)實(shí)現(xiàn)了對(duì)系統(tǒng)設(shè)備的協(xié)調(diào)控制和實(shí)時(shí)監(jiān)控。
[Abstract]:Urban rail transit trains have the advantages of low energy consumption, high speed, high environmental protection and so on, which is an effective means to solve urban traffic congestion. However, the traction power of urban rail transit system fluctuates greatly. As a result, the capacity utilization ratio of traction substation equipment is reduced, and the unidirectional energy flow of traction substation results in a large amount of regenerative braking energy being wasted. The application of energy storage technology in the field of rail transit has become a research hotspot at home and abroad. The energy storage system has the characteristics of flexible charge and discharge, can suppress the power fluctuation and recycle the regenerative energy, and make use of the complementary characteristics of the hybrid energy storage system. According to the above background, according to the actual operating conditions of the train, the power data, This paper studies the capacity configuration and dispatching technology of ground energy storage system in urban rail transit. Firstly, the traction characteristics and traction strategy of urban rail train are studied. Combined with the departure time interval of train, a multi-vehicle traction power calculation model is established, and the load characteristics of traction substation are simulated by this model. Based on the established model, the traction power of traction substation is calculated and the load power value of traction substation is obtained. The traction load characteristics of different departure time intervals are analyzed in terms of power, frequency and energy, which provide a data basis for the capacity configuration of ground-based energy storage system. Secondly, for the traction substation ground hybrid energy storage system, The methods of Fourier transform and inverse Fourier transform are used to compensate and distribute the power. The optimal objective is to minimize the investment cost of traction substation and ground-based hybrid energy storage system. The optimal configuration model of the hybrid energy storage system in traction substation is constructed, and the power allocation strategy is integrated into the particle swarm optimization algorithm to solve the problem. Then, the real-time fluctuation of train traction load is analyzed. A real-time scheduling strategy based on low-pass filtering is proposed. Considering the actual working state of the energy storage system, an energy storage control correction strategy and an overcharge and over-discharge protection strategy are proposed. The simulation model is built to verify the strategy. The results show that the real-time scheduling strategy can meet the demand of real-time traction load fluctuation and correct the scheduling plan deviation caused by real-time load fluctuation. Finally, the monitoring and dispatching system of urban traffic transmission system test platform based on DC microgrid is built. From the physical layer to the application layer, the data interactive interface of the background management system is designed. The real-time monitoring interface is developed, and the coordinated control and real-time monitoring of the system equipment are realized through the monitoring and dispatching system of the platform.
【學(xué)位授予單位】：北京交通大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類號(hào)】：U224

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本文編號(hào)：1567578