微電網(wǎng)中蓄電池的建模與控制仿真研究
王偉1，朱小龍2，錢磊3，張文程3
1 東南大學(xué) 電氣工程學(xué)院，江蘇 南京 210096； 2 江蘇省電力公司經(jīng)濟技術(shù)研究院，江蘇 南京 210008； 3 無錫供電公司， 江蘇 無錫 214000
摘 要：建立合理的蓄電池動態(tài)模型對于研究其在微電網(wǎng)運行時的動態(tài)性能具有十分重要的意義。介紹了一種基于鉛酸蓄電池的3階動態(tài)模型，并在MATLAB/SIMULINK平臺中建立了相應(yīng)的仿真模型，分析了該模型在充放電過程中的動態(tài)特性。基于P/Q解耦控制原理實現(xiàn)了蓄電池并網(wǎng)，并將蓄電池應(yīng)用于平抑分布式電源的功率波動。仿真結(jié)果驗證了模型的合理性及控制策略的有效性。
關(guān)鍵詞：微電網(wǎng)；蓄電池建模；P/Q解耦；功率波動 中圖分類號：TM912 文獻標(biāo)識碼：A 文章編號：1007-3175(2013)04-0006-06
Simulation Study of Battery Modeling and Control in Microgrid
WANG Wei1, ZHU Xiao-long2, QIAN Lei3, ZHANG Wen-cheng3
1 School of Electrical Engineering, Southeast University,Nanjing 210096,China； 2 Economic and Technological Research Institute of Jiangsu Electric Power Company,Nanjing 210008,China； 3 Wuxi Power Supply Company,Wuxi 214000,China
Abstract: For the study of dynamic performance of microgrid operation, to establish reasonable battery dynamic model is very meaningful. Introduction was made to a kind of three-order dynamic model based on lead-acid batteries and the corresponding simulation model was established in SIMULINK of MATLAB to analyze the dynamic characteristics of the model in the process of charging and discharging. On the basis of P/Q decoupling control principle, the battery energy storage system was connected to the grid and would be applied to stabilize the power fluctuations of distributed power. Simulation results verify the validity of the model and control strategy.
Key words: microgrid; battery modeling; P/Q decoupling control; power fluctuation
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