多BESS独立直流微电网的SOC协调控制  

SOC Coordinated Control for Autonomous DC Micro-grid with Multi-energy Storage

作　　者：王武[1] WANG Wu(School of Electrical and Mechanical Engineering,Xuchang University,Xuchang Henan 461000,China)

机构地区：[1]许昌学院电气与机械工程学院,河南许昌461000

出　　处：《湖北第二师范学院学报》2022年第2期32-35,共4页Journal of Hubei University of Education

基　　金：河南省教育厅项目(18A510005,21B470009)。

摘　　要：直流微电网控制结构简单,是推动能源绿色转型的有效方式。多BESS对保证微电网可靠供电及稳定运行具有重要意义。提出多BESS直流微电网的SOC协调控制策略,给出了微电网的结构、BESS建模及SOC估算方法,探讨了储能系统的下垂控制及下垂系数动态调节改进策略,分析了基于电压观测器及均流控制器的储能模块控制方法,通过算例证明系统能够实现发电单元和储能单元的协调配合,维持系统能量吞吐平衡。DC micro-grid is an effective way to promote the green transformation of energy with simple struc⁃ture.Multiple energy storage system is vital for reliable power supply and stable operation.The structure of DC mi⁃cro-grid is proposed with the method for modeling of BESS and estimation of SOC.Droop control with dynamic coeffi⁃cient adjustment is analyzed,also the control of energy storage module based on voltage observer and current sharing controller is analyzed.The uniform output between energy storage units is ensured with coordination and energy bal⁃ance between distributed generation and energy storage unit.The effectiveness of the proposed control strategy was verified with experiments.

关 键 词：直流微电网 观测器 多储能系统 协调控制 下垂控制 

分 类 号：TM71[电气工程—电力系统及自动化]