電力系統(tǒng)諧波分析與抑制技術(shù)的分析諧波畢業(yè)論文-展示頁
2025-07-01 07:36本頁面
【正文】 著科學(xué)技術(shù)的發(fā)展，隨著工業(yè)生產(chǎn)水平和人民生活水平的提高，非線性用電設(shè)備在電網(wǎng)中大量投運，造成了電網(wǎng)的諧波分量占的比重越來越大。 瞬時無功功率理論ABSTRACTWith the development of electric power systems as well as the opening up of electricity markets, power quality problems has attracted wide attention. Due to various nonlinear loads (harmonic) wider, increasing pollution of harmonic to power grid. Therefore, harmonic and suppression technique has bee the subject of widespread attention at home and abroad.Firstly the harmonic problems and describes the status quo at home and abroad, introduced the main means of suppressing harmonics from the traditional LC filter to the development process of shunt active power filter and its future development trend of APF. Introduces the basic concepts of electric power harmonic as well as the emergence and impact of nonlinear load harmonic source and conducted an analysis of several typical nonlinear harmonic sources. Subsequent establishment of mathematical model of nonlinear load harmonic source and mathematical formula came to a conclusion, using software, SIMUINK simulation environment for platform was established in model and simulation to prove the impact of nonlinear load users for linear users.At present, in the harmonic context, already has a practical passive filter technology is mature, but due to the existence of passive power filter some of the shortings. Because of its dynamic pensation of active power filter harmonic superiority have bee a hot research topic. This paper, taking into account the electric power system in most cases in an equilibrium State, were made to the existing harmonic current detecting method based on instantaneous reactive power improvement, presents threephase threewire shunt active power filter for harmonic detection method. IPIQ beg for improvement method based on instantaneous reactive power theory. Harmonic current detecting method for simulation analysis of systems under stable conditions, proves that detection IPIQ method and accurate detection in real time under different load harmonics.Study on current control method for shunt active power filter, determines this triangle wave parison control method, as this study on control strategy for threephase threewire shunt active power filter.Finally based on earlier research of harmonic detection method and control partbuilt threephase threewire shunt active power filter and Matlab simulation, simulation results show a good pensation for the filter performance.Key words： of power system harmonics。 脈寬調(diào)制。最后依據(jù)前面所研究的諧波檢測方法和控制部分構(gòu)建了三相三線制并聯(lián)有源電力濾波器?進(jìn)行了Matlab仿真實驗,仿真結(jié)果驗證了該濾波裝置的良好補(bǔ)償性能。諧波電流檢測方法?在系統(tǒng)穩(wěn)定情況下進(jìn)行了仿真分析,證明了ipiq檢測方法能實時、準(zhǔn)確地檢測不同負(fù)載情況下的諧波。本文在考慮到我國電力系統(tǒng)大多數(shù)情況下處于不平衡狀態(tài)下,對現(xiàn)有的基于瞬時無功功率諧波檢測方法進(jìn)行了改進(jìn),提出了三相三線制并聯(lián)有源電力濾波器諧波檢測方法。目前,在諧波抑制方面,已經(jīng)有了實用的很成熟的無源濾波技術(shù),但由于無源濾波器存在的一些缺點。介紹了電力諧波的基本概念以及非線性負(fù)荷諧波源的產(chǎn)生和影響,并對幾種典型的非線性諧波源進(jìn)行了分析。因此，諧波及其抑制技術(shù)己成為國內(nèi)外廣泛關(guān)注的課題。南昌大學(xué)自考本科畢業(yè)設(shè)計編號 畢 業(yè) 設(shè) 計 報 告設(shè)計題目：電力系統(tǒng)諧波分析與抑制技術(shù)的分析 專業(yè)名稱： 電力系統(tǒng)及其自動化 報告準(zhǔn)備日期： 2013年9月——2013年11月 提 交 日 期： 2013年11月 答 辯 日 期： 2013年11月 答辯委員會主席： 評 閱 人：
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