本文選題：配電臺(tái)區(qū) + 廣義無(wú)功補(bǔ)償��； 參考：《西安理工大學(xué)》2017年碩士論文

【摘要】：配電臺(tái)區(qū)系統(tǒng)直接面向終端用戶,是服務(wù)民生的重要基礎(chǔ)設(shè)施及未來(lái)清潔能源并網(wǎng)的重要節(jié)點(diǎn),對(duì)承載和推進(jìn)國(guó)家“互聯(lián)網(wǎng)+”智慧能源戰(zhàn)略具有重要意義。目前,由單相大容量負(fù)荷時(shí)空分布不合理及感性負(fù)荷增多帶來(lái)的三相負(fù)荷不平衡及無(wú)功不平衡問(wèn)題是影響配電臺(tái)區(qū)運(yùn)行的兩大主要問(wèn)題。本課題針對(duì)這兩個(gè)問(wèn)題,結(jié)合配電臺(tái)區(qū)系統(tǒng)采用三相四線制供電方式、接地與不接地負(fù)荷共存等特點(diǎn),基于對(duì)稱分量法研究并實(shí)現(xiàn)以TSC (晶閘管投切電容器)支路為基本補(bǔ)償結(jié)構(gòu)的綜合補(bǔ)償無(wú)功及三相不平衡的配電臺(tái)區(qū)廣義無(wú)功補(bǔ)償技術(shù)。主要研究工作及結(jié)論如下。簡(jiǎn)要介紹了配電臺(tái)區(qū)的組成、特點(diǎn),分析了配電臺(tái)區(qū)無(wú)功及三相不平衡產(chǎn)生的原因及危害,結(jié)合配電臺(tái)區(qū)無(wú)功及三相不平衡治理現(xiàn)狀,提出利用廣義無(wú)功補(bǔ)償技術(shù)綜合治理配電臺(tái)區(qū)無(wú)功及三相負(fù)荷不平衡。分析單相TSC結(jié)構(gòu)及其補(bǔ)償無(wú)功的原理,以單相TSC為基本支路研究配電臺(tái)區(qū)廣義無(wú)功補(bǔ)償裝置主電路的結(jié)構(gòu),即采用△補(bǔ)償回路與Y補(bǔ)償回路結(jié)合的方式。在此基礎(chǔ)上,對(duì)TSC主電路進(jìn)行研究及設(shè)計(jì),選擇電容器組的配置方式為二進(jìn)制分組方式,最佳投入閾值系數(shù)與切除閾值系數(shù)為0.6,在晶閘管兩端電壓過(guò)零時(shí)投切。研究常用的三種廣義無(wú)功補(bǔ)償算法,結(jié)合配電臺(tái)區(qū)廣義無(wú)功補(bǔ)償裝置主電路結(jié)構(gòu),選擇對(duì)稱分量法為基本算法,根據(jù)補(bǔ)償后系統(tǒng)只存在正序有功電流的特點(diǎn),研究符合配電臺(tái)區(qū)系統(tǒng)特點(diǎn)及主電路結(jié)構(gòu)的配電臺(tái)區(qū)廣義無(wú)功動(dòng)態(tài)補(bǔ)償模型,根據(jù)此模型,僅需測(cè)量系統(tǒng)三相有功功率及無(wú)功功率即可求出主電路中各補(bǔ)償電容的容量。并通過(guò)simulink仿真,使得廣義無(wú)功補(bǔ)償裝置主電路結(jié)構(gòu)及補(bǔ)償算法的正確性得以驗(yàn)證。完成以dsPIC30F6014A與CPLD為核心的配電臺(tái)區(qū)廣義無(wú)功補(bǔ)償裝置控制部分硬件電路設(shè)計(jì)和軟件編程,實(shí)現(xiàn)配電臺(tái)區(qū)系統(tǒng)電參數(shù)的采集、補(bǔ)償裝置主電路的控制及保護(hù)功能。并結(jié)合工程化及實(shí)用化的思想,對(duì)配電臺(tái)區(qū)廣義無(wú)功補(bǔ)償裝置進(jìn)行實(shí)驗(yàn)驗(yàn)證。實(shí)驗(yàn)結(jié)果表明,本文所研究的配電臺(tái)區(qū)廣義無(wú)功補(bǔ)償技術(shù)能準(zhǔn)確補(bǔ)償配電臺(tái)區(qū)系統(tǒng)的無(wú)功和三相不平衡。
[Abstract]:The radio distribution area system is directly oriented to the end users. It is an important infrastructure to serve the people's livelihood and an important node to connect clean energy in the future. It is of great significance to carry out and promote the intelligent energy strategy of the country's "Internet". At present, the unbalance of three-phase load and reactive power imbalance caused by the unreasonable space-time distribution of single-phase and large-capacity load and the increase of inductive load are the two main problems affecting the operation of distribution station area. In view of these two problems, this paper combines the characteristics of three-phase four-wire power supply system and coexistence of grounding and ungrounded load in the distribution station area system. Based on the symmetrical component method, the generalized reactive power compensation technique in the distribution station is studied and realized with TSC (thyristor switched capacitor) branch as the basic compensation structure and three-phase imbalance. The main research work and conclusions are as follows. This paper briefly introduces the composition and characteristics of the distribution station area, analyzes the causes and hazards of reactive power and three-phase imbalance in the distribution station area, and combines with the current situation of reactive power and three-phase imbalance control in the distribution station area. The generalized reactive power compensation technique is used to comprehensively control the imbalance of reactive power and three-phase load in the distribution station area. Based on the analysis of single-phase TSC structure and the principle of reactive power compensation, the structure of the main circuit of the generalized reactive power compensation device in the distribution station area is studied with the single-phase TSC as the basic branch, that is, the compensation loop is combined with the Y compensation circuit. On this basis, the main circuit of TSC is studied and designed. The configuration of capacitor bank is binary grouping mode, the optimal input threshold coefficient and excising threshold coefficient is 0.6, and the voltage at both ends of the thyristor is switched over 00:00. In this paper, three common generalized reactive power compensation algorithms are studied. Combined with the main circuit structure of the generalized reactive power compensation device in the distribution station area, the symmetric component method is chosen as the basic algorithm. According to the characteristic that only positive sequence active current exists in the compensated system, The generalized reactive power compensation model of the distribution station is studied, which accords with the characteristics of the radio distribution area system and the structure of the main circuit. According to this model, the capacity of the compensation capacitors in the main circuit can be obtained only by measuring the three-phase active power and reactive power of the system. Through simulink simulation, the correctness of the main circuit structure and compensation algorithm of the generalized reactive power compensation device is verified. The hardware circuit design and software programming of the control part of the generalized reactive power compensation device in the distribution station area based on dsPIC30F6014A and CPLD are completed. The collection of electrical parameters in the distribution station area and the control and protection function of the main circuit of the compensation device are realized. Combined with the idea of engineering and practicality, the generalized reactive power compensation device in the distribution station area is verified experimentally. The experimental results show that the generalized reactive power compensation technique studied in this paper can accurately compensate the reactive power and three-phase imbalance of the radio distribution area system.
【學(xué)位授予單位】：西安理工大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類號(hào)】：TM714.3

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 王一;劉建政;;不對(duì)稱電壓下不平衡負(fù)載的平衡化補(bǔ)償方法[J];電力自動(dòng)化設(shè)備;2016年10期

2 張建軍;程大印;韓丹;王鈺;陳仲;王志龍;;混合智能無(wú)功補(bǔ)償在低壓臺(tái)區(qū)的應(yīng)用[J];電力電容器與無(wú)功補(bǔ)償;2016年03期

3 孫建東;蔡月明;蔡鄭光;;配電臺(tái)區(qū)三相不平衡治理方案分析[J];自動(dòng)化與儀器儀表;2015年11期

4 方恒福;盛萬(wàn)興;王金麗;梁英;王金宇;王思源;;配電臺(tái)區(qū)三相負(fù)荷不平衡實(shí)時(shí)在線治理方法研究[J];中國(guó)電機(jī)工程學(xué)報(bào);2015年09期

5 王果;;配電臺(tái)區(qū)三相不平衡的危害與對(duì)策[J];電工技術(shù);2014年12期

6 丁軍威;周黎輝;楊慶;張焱;殷立;吳靜;;中國(guó)發(fā)電行業(yè)溫室氣體減排技術(shù)及潛力分析[J];電力系統(tǒng)自動(dòng)化;2014年17期

7 辛業(yè)春;李國(guó)慶;王朝斌;;無(wú)功和三相負(fù)荷不平衡的序分量法補(bǔ)償控制[J];電力系統(tǒng)保護(hù)與控制;2014年14期

8 毛彥輝;夏明超;李曉亮;肖偉棟;;負(fù)載不平衡下D-STATCOM控制策略的仿真研究[J];電力系統(tǒng)保護(hù)與控制;2013年24期

9 王松;談龍成;李耀華;王平;宋鵬先;任洪濤;;鏈?zhǔn)叫切蜸TATCOM補(bǔ)償不平衡負(fù)載的控制策略[J];中國(guó)電機(jī)工程學(xué)報(bào);2013年27期

10 岳仁超;尤文鋒;孫建東;;智能配電臺(tái)區(qū)在低壓配電系統(tǒng)中的應(yīng)用[J];低壓電器;2013年13期

相關(guān)碩士學(xué)位論文 前1條

1 崔艷;配電網(wǎng)無(wú)功補(bǔ)償技術(shù)的研究和應(yīng)用[D];華北電力大學(xué);2014年

，

本文編號(hào)：1893643