儲能逆變器及其抑制光伏功率波動的研究
[Abstract]:With the depletion of fossil energy in the world and the deterioration of environmental pollution in the world, the new energy generation technology with the characteristics of environmental protection and renewable has a very good application prospect. However, due to the randomness and instability of some new energy sources, there is great pressure on the safe, reliable and efficient operation of power system. In order to smooth the output power of new energy, improve the reliability of new energy generation and reduce the volatility of new energy generation, it is an important development direction to cooperate with energy storage system to generate electricity. Firstly, this paper analyzes the various equivalent circuits of energy storage battery, improves the existing typical equivalent circuits, and proposes a new equivalent model based on the combination of simple equivalent circuit and third-order dynamic equivalent circuit. It is verified on the PSCAD/EMTDC simulation platform. Secondly, the characteristics of different charging and discharging modes (constant voltage, constant current, constant power) are compared, and the characteristics of voltage and current output of energy storage system under different charging and discharging modes are summarized and analyzed by using double loop control strategy to carry out numerical simulation on PSCAD/EMTDC platform. Then, the switching method between different charge-discharge modes is studied, and an improved control strategy with softening control is proposed to improve the smooth switching current transition curve. According to the characteristic condition of battery, a three-variable control method is proposed for charge and discharge termination control. Thirdly, the characteristics of topology of different optical storage systems are compared and analyzed. In this paper, the parallel topology of AC side is used to study the plane-wave suppression of photovoltaic power in the energy storage system, and a new algorithm is proposed to calculate the compensation power. In the PSCAD/EMDTC simulation platform, the simulation verification is carried out. Finally, some faults occurred in the prototype test of energy storage inverter are summarized and analyzed.
【學(xué)位授予單位】:華北電力大學(xué)
【學(xué)位級別】:碩士
【學(xué)位授予年份】:2014
【分類號】:TM464
【參考文獻(xiàn)】
相關(guān)期刊論文 前10條
1 侯幽明;陳其工;江明;;磷酸鐵鋰電池模型參數(shù)辨識與SOC估算[J];安徽工程大學(xué)學(xué)報(bào);2011年02期
2 徐偉烽;;儲能逆變器并網(wǎng)/孤網(wǎng)雙模式控制策略研究[J];變頻器世界;2012年04期
3 張仕彬;林仲帆;杜貴平;劉多亮;;基于雙向變流技術(shù)的蓄電池充放電裝置[J];電力電子技術(shù);2008年05期
4 丁明;徐寧舟;畢銳;;用于平抑可再生能源功率波動的儲能電站建模及評價[J];電力系統(tǒng)自動化;2011年02期
5 李立偉;陳偉斌;馬平;;獨(dú)立光伏電站蓄電池優(yōu)化管理研究[J];電力自動化設(shè)備;2009年04期
6 張文亮;丘明;來小康;;儲能技術(shù)在電力系統(tǒng)中的應(yīng)用[J];電網(wǎng)技術(shù);2008年07期
7 張賓;郭連兌;李宏義;陳全世;崔忠彬;;電動汽車用磷酸鐵鋰離子電池的PNGV模型分析[J];電源技術(shù);2009年05期
8 吳瑤;高飛燕;;閥控式密封鉛酸蓄電池充電終止控制方法的研究[J];電子技術(shù);2010年11期
9 孫穎;糜仲春;羅林;;推廣光伏建筑一體化(BIPV)的幾個關(guān)鍵問題探析[J];建筑節(jié)能;2011年12期
10 洪海生;江全元;嚴(yán)玉婷;;實(shí)時平抑風(fēng)電場功率波動的電池儲能系統(tǒng)優(yōu)化控制方法[J];電力系統(tǒng)自動化;2013年01期
相關(guān)博士學(xué)位論文 前2條
1 李軍徽;抑制風(fēng)電對電網(wǎng)影響的儲能系統(tǒng)優(yōu)化配置及控制研究[D];華北電力大學(xué);2012年
2 簡澤浪;新型儲能電池電極材料研究[D];武漢理工大學(xué);2012年
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