【正文】 parallel and seriesparallel), harmonic current detection method and the pensation current control methods. This article focuses on the harmonic current detection method. This paper analyzes the emergence of power system harmonics and hazards, of power theory and the theory of instantaneous power analysis, parison, pointing out that their scope and the advantages and disadvantages. Detailed information on the instantaneous reactive power theory based on the number of harmonics and reactive current detecting method, pq detection method, qp ii ? detection method and dq0 detection and analysis of their detection principle, characteristics and use limitation. MATLAB / Simulink simulation model, focusing on instantaneous reactive power based on the theory of harmonic current detection method of pq detection method and qp ii detection method simulations, were carried out and pared the experimental results, obtaining better harmonics or reactive current detection program. ARSTRACT III For different mutation load and load simulation experiments, the use of different methods to arrive at the conditions and optimal results. Keywords: active power filter , instantaneous reactive power , current detection , simulation 目 錄 IV 目 錄 摘 要 ...................................................................................................... I ABSTRACT ............................................................................................. II 第一章 緒論 ............................................................................................. 1 諧波的 發(fā)展 及 現(xiàn)狀 ............................................................................................................ 1 電力系統(tǒng)諧波的產(chǎn)生原因及其危害 ..........................................................2 諧波產(chǎn)生原因 ............................................................................................................ 2 電力系統(tǒng)諧波的危害及對電能計量的影響 ................................................ 2 第二章 諧波及 有源電力濾波器 的基本概念及原理 .................................. 4 電力系統(tǒng) 有關(guān) 諧波的基本概念及含義 .................................................................... 4 諧波的定義 ................................................................................................................. 4 諧波分析中的常用概念 ........................................................................................ 5 有源電力濾波器技術(shù)的提出 ........................................................................................ 6 無源電力濾波器 ........................................................................................................ 6 有源電力濾波器 ........................................................................................................ 7 有源電力濾波 器的組成、原理和發(fā)展趨勢 .......................................................... 7 有源電力濾波器的基本結(jié)構(gòu)和工作原理 ...................................................... 7 有源電力濾波器的分類 ......................................................................................... 8 有源電力濾波器的發(fā)展趨勢 ............................................................................... 9 有源電力濾波器的諧波電流檢測技術(shù)及其發(fā)展 ..............................................10 第三章 無功功率理論 ............................................................................. 12 平均功率理論 ....................................................................................................................12 0?? 坐標(biāo)系下瞬時無功理論 .......................................................................................13 0dq 坐標(biāo)系下瞬時無功理論 ......................................................................................18 無功功率理論的對比研究 ..........................................................................................21 目 錄 V 平均功率理論 ...........................................................................................................21 瞬時功率理論 ...........................................................................................................21 第四章 基于瞬時無功理論的諧波電流檢測法 ..................................................... 23 三相三線制電路 ...............................................................................................................23 qp 檢測法 .................................................................................................................23 ipiq 檢測法 ................................................................................................................24 三相四線制電路 ............................................................................................................25 qp 檢測法 .................................................................................................................25 ipiq 檢測法 ..................................................................................................................25 0dq 檢測法 ..................................................................................................................25 對比研究 ..............................................................................................................................26 電網(wǎng)電壓對稱時 ......................................................................................................26 電網(wǎng)電壓不對稱時 .................................................................................................26 本章小結(jié) ..............................................................................................................................27 第五章 低通濾波器設(shè)計 ..................................................................... 28 檢測電路中低通濾波器 ...............................................................................................28 低通濾波器設(shè)計 和分析 ...............................................................................................28 低通濾波器的選擇 .........................................................................................................29 第六章 基于瞬時無功理論的檢測系統(tǒng)仿真 ......................................