本文選題：農(nóng)網(wǎng) + 無功補(bǔ)償�。� 參考：《沈陽農(nóng)業(yè)大學(xué)》2017年碩士論文

【摘要】：新農(nóng)村建設(shè)作為我國一項(xiàng)長久重要發(fā)展戰(zhàn)略,目的是要讓農(nóng)村整體環(huán)境得到有效徹底改善。而電力事業(yè)作為戰(zhàn)略部署中的一項(xiàng)重大領(lǐng)域,始終承擔(dān)著關(guān)鍵角色,直接影響農(nóng)村生產(chǎn)生活質(zhì)量。隨著建設(shè)步伐的不斷邁進(jìn),人們的生活水平更高也更加現(xiàn)代化,伴隨而來的就是用電量的急劇增加,這就導(dǎo)致農(nóng)網(wǎng)電網(wǎng)系統(tǒng)中負(fù)載增多,供電負(fù)擔(dān)越來越大,電能質(zhì)量逐漸下降。因此,在電力系統(tǒng)中如何增強(qiáng)用電穩(wěn)定性,提高電能利用率就逐漸成為了一項(xiàng)重要的研究領(lǐng)域。本文的主要思想是采用無功補(bǔ)償技術(shù),通過設(shè)計(jì)一種動(dòng)態(tài)補(bǔ)償控制系統(tǒng)來實(shí)現(xiàn)對農(nóng)村電力系統(tǒng)的提質(zhì)增效。首先,通過大量閱讀參考文獻(xiàn)詳細(xì)了解了農(nóng)村配電網(wǎng)無功補(bǔ)償技術(shù)和補(bǔ)償裝置的發(fā)展現(xiàn)狀,對現(xiàn)有研究成果進(jìn)行了綜合比較,產(chǎn)生了一種基于混合補(bǔ)償裝置的設(shè)計(jì)想法。其次,從農(nóng)村配電網(wǎng)的角度詳細(xì)介紹了無功補(bǔ)償技術(shù)的基本理論,為接下來的研究分析提供理論基礎(chǔ)。隨后,本文詳細(xì)闡述了 TSC和SVG兩種裝置的相關(guān)理論知識,并結(jié)合各自優(yōu)點(diǎn)設(shè)計(jì)了一種采用并聯(lián)結(jié)構(gòu)的動(dòng)態(tài)混合無功補(bǔ)償控制系統(tǒng),從運(yùn)行特性角度證明了方案的可行性。同時(shí),提出了混合無功補(bǔ)償系統(tǒng)的控制策略,并且考慮到瞬時(shí)無功功率理論對無功檢測的關(guān)鍵性作用,采用一種適用于電網(wǎng)畸變情況下的無功電流檢測算法(d-q運(yùn)算法),提高了無功數(shù)據(jù)檢測的速度和準(zhǔn)確性。最后,利用MATLAB/SIMULINK技術(shù)搭建設(shè)計(jì)方案的仿真模型,對其控制策略和無功電流檢測方法進(jìn)行結(jié)果分析,通過在阻感負(fù)載和存在諧波兩種環(huán)境下的模擬仿真,證明了該系統(tǒng)的理論研究結(jié)果和補(bǔ)償效果,并在此基礎(chǔ)上對混合無功補(bǔ)償控制系統(tǒng)進(jìn)行了軟硬件的設(shè)計(jì)。
[Abstract]:As a long-term and important development strategy in China, new rural construction aims to improve the overall rural environment effectively and thoroughly. As an important field in strategic deployment, electric power industry always plays a key role and directly affects the quality of production and life in rural areas. With the continuous progress of construction, people's living standards are higher and more modern, accompanied by a sharp increase in electricity consumption, which leads to the increase in the load in the rural power grid system, the power supply burden is increasing. The quality of electricity is declining gradually. Therefore, how to enhance the power stability and improve the power utilization rate in power system has gradually become an important research field. The main idea of this paper is to design a dynamic compensation control system to improve the quality and efficiency of rural power system by using reactive power compensation technology. Firstly, the development of reactive power compensation technology and compensator in rural distribution network is studied in detail by reading a large number of references, and the existing research results are compared synthetically, and a design idea based on hybrid compensation device is presented. Secondly, the basic theory of reactive power compensation technology is introduced in detail from the point of view of rural distribution network, which provides the theoretical basis for the following research and analysis. Then, this paper describes the theoretical knowledge of TSC and SVG in detail, and designs a dynamic hybrid reactive power compensation control system with parallel structure combined with their respective advantages. The feasibility of the scheme is proved from the point of view of operation characteristics. At the same time, the control strategy of hybrid reactive power compensation system is proposed, and the key role of instantaneous reactive power theory in reactive power detection is considered. A reactive current detection algorithm based on d-q algorithm is proposed to improve the speed and accuracy of reactive power data detection. Finally, the simulation model of the design scheme is built by using MATLAB/SIMULINK technology, and the results of the control strategy and reactive current detection method are analyzed, and the simulation results are given under the environment of resistive load and harmonic. The theoretical research results and compensation effect of the system are proved, and the hardware and software of the hybrid reactive power compensation control system are designed.
【學(xué)位授予單位】：沈陽農(nóng)業(yè)大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2017
【分類號】：TM727.1;TM761.12
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本文編號：1774846