本文選題：諧波　切入點(diǎn)：無功補(bǔ)償　出處：《山東理工大學(xué)》2015年碩士論文　論文類型：學(xué)位論文

【摘要】：針對電網(wǎng)中非線性負(fù)載及感性負(fù)荷引起的諧波及無功功率問題,如何有效的濾除諧波及無功補(bǔ)償具有重大現(xiàn)實(shí)意義。無源濾波器作為濾波手段具有成本低廉、技術(shù)成熟等優(yōu)勢,而單獨(dú)使用無源濾波器或者無功補(bǔ)償裝置難以同時(shí)滿足諧波抑制和無功補(bǔ)償?shù)男枰?本文在此基礎(chǔ)上提出了無源濾波及動態(tài)無功補(bǔ)償系統(tǒng)設(shè)計(jì)方案。本文的具體內(nèi)容如下:(1)設(shè)計(jì)了無源濾波及動態(tài)無功補(bǔ)償系統(tǒng)結(jié)構(gòu),分析了無源濾波器的結(jié)構(gòu)及工作原理,基于雙調(diào)諧濾波器設(shè)計(jì)了無源濾波裝置,使用兩個(gè)磁控電抗器替代傳統(tǒng)固定電抗器。分析了動態(tài)無功補(bǔ)償裝置的結(jié)構(gòu)及工作原理,選取了晶閘管投切電容器(TSC)的投切時(shí)刻及控制策略。(2)分析了基于磁控電抗器的雙調(diào)諧濾波器的原理,討論了電感值對諧振頻率的影響,對可變電抗器器件及其控制策略進(jìn)行選擇;針對無功功率檢測法及諧波電流的采樣處理進(jìn)行詳細(xì)分析,分別對基于磁控電抗器雙調(diào)諧濾波器及TSC裝置控制系統(tǒng)進(jìn)行設(shè)計(jì)。(3)利用MATLAB平臺進(jìn)行建模仿真,通過調(diào)節(jié)兩電抗器值來糾正雙調(diào)諧濾波器因基頻、電容值改變引起的失諧,對各個(gè)裝置投入前后的諧波電流、諧波畸變率、功率因數(shù)進(jìn)行了比較,通過對系統(tǒng)整體結(jié)構(gòu)的仿真分析,驗(yàn)證了無源濾波及動態(tài)無功補(bǔ)償裝置的可行性和合理性。
[Abstract]:In order to solve the harmonic and reactive power problems caused by nonlinear load and inductive load, it is of great practical significance to effectively filter harmonic and reactive power compensation. As a filter, passive filter has the advantages of low cost and mature technology. However, it is difficult to satisfy the need of harmonic suppression and reactive power compensation by using passive filter or reactive power compensation device alone. On this basis, the design scheme of passive filter and dynamic reactive power compensation system is proposed. The concrete contents of this paper are as follows: 1) the structure of passive filter and dynamic reactive power compensation system are designed, and the structure and working principle of passive filter are analyzed. The passive filter device is designed based on double tuning filter. Two magnetically controlled reactors are used to replace the traditional fixed reactor. The structure and working principle of the dynamic reactive power compensation device are analyzed. The switching time and control strategy of thyristor switched capacitor (TSC) are selected to analyze the principle of double-tuned filter based on magnetron reactor, and the influence of inductance on resonant frequency is discussed. The variable reactor device and its control strategy are selected, and the reactive power detection method and harmonic current sampling processing are analyzed in detail. The double tuning filter based on the magnetic reactor and the control system of the TSC device are designed respectively. The modeling and simulation are carried out by using the MATLAB platform. The detuning caused by the change of the fundamental frequency and the capacitance value of the double tuned filter is corrected by adjusting the value of the two reactors. The harmonic current, harmonic distortion rate and power factor of each device before and after putting into operation are compared. The feasibility and rationality of passive filter and dynamic reactive power compensation device are verified by simulation and analysis of the overall structure of the system.
【學(xué)位授予單位】：山東理工大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2015
【分類號】：TN713;TM714.3

【參考文獻(xiàn)】

相關(guān)期刊論文 前1條

1 湯賜;羅安;羅邵屏;劉秋英;;注入式混合型有源濾波器的電流跟蹤控制(英文)[J];電力自動化設(shè)備;2008年05期

相關(guān)碩士學(xué)位論文 前1條

1 韓龍飛;諧波抑制與并聯(lián)混合有源濾波器的關(guān)鍵技術(shù)[D];浙江大學(xué);2007年

，

本文編號：1639666