本文關(guān)鍵詞： 直流微電網(wǎng) 分布式電源 并網(wǎng)接口 控制策略 最大功率跟蹤　出處：《河北科技大學(xué)》2017年碩士論文　論文類型：學(xué)位論文

【摘要】：隨著能源短缺和環(huán)境污染等問(wèn)題變得越來(lái)越嚴(yán)重,急需尋找清潔的新能源來(lái)解決目前的問(wèn)題。而太陽(yáng)能發(fā)電這種環(huán)保的發(fā)電方式得到了人們的認(rèn)可�？茖W(xué)技術(shù)不斷提高,直流負(fù)載的應(yīng)用持續(xù)增加,導(dǎo)致供電方式發(fā)生變化,促進(jìn)了直流微電網(wǎng)的發(fā)展。直流微電網(wǎng)的結(jié)構(gòu)由分布式再生能源發(fā)電模塊、儲(chǔ)能模塊和負(fù)載模塊等組成。為了實(shí)現(xiàn)能量的協(xié)調(diào)控制以及保證供電的安全性和穩(wěn)定性問(wèn)題,就需要采用恰當(dāng)?shù)牟呗詫?duì)直流微網(wǎng)進(jìn)行控制。本文主要是對(duì)由太陽(yáng)能電池陣列、蓄電池組和可控負(fù)載等組成的主從式直流微電網(wǎng)系統(tǒng)進(jìn)行分析,運(yùn)用分層控制策略來(lái)實(shí)現(xiàn)直流微電網(wǎng)的穩(wěn)定運(yùn)行。本文首先對(duì)光伏發(fā)電系統(tǒng)、儲(chǔ)能裝置以及變換器的特性進(jìn)行了分析,并對(duì)發(fā)電模塊中的最大功率追蹤原理和儲(chǔ)能模塊的控制方法進(jìn)行了詳細(xì)的研究,為實(shí)現(xiàn)對(duì)整個(gè)系統(tǒng)的控制奠定了基礎(chǔ)。然后對(duì)多臺(tái)逆變器的并聯(lián)問(wèn)題進(jìn)行了分析。最后在Matlab/Simulink環(huán)境下搭建了層次控制下的仿真模型,通過(guò)仿真驗(yàn)證所提出的控制策略的有效性。
[Abstract]:As energy shortages and environmental pollution become more and more serious, there is an urgent need to find clean new sources of energy to solve the current problem. Solar power, an environmentally friendly form of power generation, has gained recognition. Science and technology are constantly improving. The application of DC load continues to increase, which leads to the change of power supply mode and promotes the development of DC microgrid. In order to realize the coordinated control of energy and ensure the security and stability of power supply, it is necessary to adopt the appropriate strategy to control the DC microgrid. The master-slave DC microgrid system composed of battery group and controllable load is analyzed, and the hierarchical control strategy is used to realize the stable operation of DC microgrid. The characteristics of energy storage device and converter are analyzed, and the principle of maximum power tracking and the control method of energy storage module are studied in detail. It lays a foundation for the control of the whole system. Then the parallel problem of multiple inverters is analyzed. Finally, the simulation model under hierarchical control is built in Matlab/Simulink environment, and the effectiveness of the proposed control strategy is verified by simulation.
【學(xué)位授予單位】：河北科技大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類號(hào)】：TM727

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