發(fā)布時(shí)間：2018-04-18 05:32

  本文選題：主動(dòng)配電網(wǎng) + 電能質(zhì)量��； 參考：《華北電力大學(xué)》2014年碩士論文

【摘要】：大量分布式電源接入配電網(wǎng),令傳統(tǒng)配電網(wǎng)具備了有源化和主動(dòng)化的特征。在主動(dòng)配電網(wǎng)充分發(fā)揮多種清潔能源優(yōu)勢(shì)的同時(shí),也不得不面對(duì)電能質(zhì)量問(wèn)題日益突出的困境。不斷增加的電力電子裝置等非線性負(fù)荷,也給主動(dòng)配電網(wǎng)的電能質(zhì)量帶來(lái)了一定的負(fù)面影響,使得電能質(zhì)量分析和控制問(wèn)題受到越來(lái)越廣泛的關(guān)注。本文針對(duì)主動(dòng)配電網(wǎng)中電能質(zhì)量問(wèn)題的特點(diǎn),提出了在主動(dòng)配電網(wǎng)中采用多換流器式統(tǒng)一電能質(zhì)量控制器進(jìn)行電能質(zhì)量調(diào)控的研究思路。分析了多換流器式統(tǒng)一電能質(zhì)量控制器的基本原理,設(shè)計(jì)了適用于主動(dòng)配電網(wǎng)電能質(zhì)量控制的多換流器式統(tǒng)一電能質(zhì)量控制器調(diào)控策略。 分析了主動(dòng)配電網(wǎng)的網(wǎng)絡(luò)結(jié)構(gòu)特點(diǎn)及其能量流控制結(jié)構(gòu)；針對(duì)大量分布式電源的接入,從不同角度分析了其對(duì)主動(dòng)配電網(wǎng)電能質(zhì)量造成的不利影響,進(jìn)而討論了該影響的傳播與放大問(wèn)題,總結(jié)了主動(dòng)配電網(wǎng)中電能質(zhì)量問(wèn)題,為采用多換流器式統(tǒng)一電能質(zhì)量控制器進(jìn)行電能質(zhì)量調(diào)控奠定了應(yīng)用背景。 針對(duì)多換流器式統(tǒng)一電能質(zhì)量控制器的功能結(jié)構(gòu),分析了現(xiàn)有典型的信號(hào)檢測(cè)方法,重點(diǎn)分析了基于廣義瞬時(shí)功率理論的電壓檢測(cè)方法和基于瞬時(shí)無(wú)功功率理論的電流檢測(cè)方法。據(jù)此提出了多換流器式統(tǒng)一電能質(zhì)量控制器中的串聯(lián)有源濾波器采用微分負(fù)反饋電壓滯環(huán)控制、并聯(lián)有源濾波器采用電流滯環(huán)控制的整體控制策略,理論分析表明該方案適用于配電網(wǎng)中電能質(zhì)量的控制與治理。 根據(jù)多換流器式統(tǒng)一電能質(zhì)量控制器的主電路拓?fù)浣Y(jié)構(gòu),設(shè)計(jì)了主要參數(shù)。對(duì)其中的串聯(lián)有源濾波器的電壓滯環(huán)控制策略與微分負(fù)反饋電壓滯環(huán)控制進(jìn)行了模擬仿真比對(duì),并對(duì)以兩條供電線路為模型的多換流器式統(tǒng)一電能質(zhì)量控制器及其含有光伏發(fā)電的主動(dòng)式配網(wǎng)進(jìn)行了仿真研究。結(jié)果表明了串、并聯(lián)有源濾波器控制策略有效,同時(shí)也證明了多換流器式統(tǒng)一電能質(zhì)量控制器的可行性。
[Abstract]:A large number of distributed power supplies are connected to the distribution network , so that the traditional power distribution network has the characteristics of being active and active . At the same time , the active power distribution network can fully play a variety of clean energy advantages , and also has to face the increasingly prominent plight of the electric energy quality problem .

The network structure characteristics and energy flow control structure of active power distribution network are analyzed .
Aiming at the large amount of distributed power supply , this paper analyzes its adverse effect on the quality of active power distribution network from different angles , then discusses the propagation and amplification of the influence , summarizes the problem of power quality in the active power distribution network , and establishes the application background for the energy quality control of the unified power quality controller with multi - converter .

Aiming at the function structure of a multi - converter unified power quality controller , the current typical signal detection method is analyzed , the voltage detection method based on the generalized instantaneous power theory and the current detection method based on the instantaneous reactive power theory are emphatically analyzed . According to the method , a differential negative feedback voltage hysteresis control is adopted for the series active filter in the multi - converter type unified power quality controller , and a current hysteresis control integrated control strategy is adopted in the parallel active filter , and the theoretical analysis indicates that the scheme is suitable for the control and treatment of the electric energy quality in the distribution network .

The main parameters are designed according to the main circuit topological structure of the multi - converter unified power quality controller . The voltage hysteresis control strategy of the series active filter and the differential negative feedback voltage hysteresis control are simulated . The results show that the parallel active filter control strategy is effective and the feasibility of the multi - converter unified power quality controller is also proved .

【學(xué)位授予單位】：華北電力大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類號(hào)】：TM711

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本文編號(hào)：1767029