摘要
微电网虽具有灵活型分布供电模式,可集光伏、风电、储能设备、智能监控为一体构成新型智能配电系统,但其安全、可靠和稳定性仍存在不足。在此引入超导磁储能(SMES)技术,并完成供电稳定性仿真对比实验。首先研究了传统微电网架构和控制方式,和其供电过程中的不稳定现象。进而给出SMES系统模型和工作方式,分析了该技术能提升微电网供电品质的机理,但其很难避免涡流损耗。利用35 kJ/7 kW SMES系统完成3组实验模拟,即对比传统微电网与SMES型微电网的谐波变化、电机振荡状态和减弱SMES系统的涡流损耗。研究结果表明,SMES技术能抑制振荡,所产生的电压品质更高,发电装置振荡幅值更小;当遇到干扰振荡时,SMES型微电网恢复更快,此外,在实际应用中还需考虑元件的损耗承受值。
A lthough the microgrid has a flexible distributed power supply mode,it can integrate photovoltaic,wind power,energy storage equipment and intelligent monitoring to form a new intelligent power distribution system.However,its safety,reliability and stability are still insufficient.The superconducting magnetic energy storage(SMES) technology is introduced and the simulation experiments of power supply stability is completed.Firstly,the traditional microgrid architecture and control methods are researched.Furthermore,the SMES system model and working mode are given.Using the 35 kJ/7 kW SMES system to simulate the SMES microgrid model and three sets of experiments are completed.The research results show that the SMES technology can suppress the oscillation,the voltage quality is high,and the oscillation amplitude of the power generation device is small.While encountering the disturbance oscillation,the SMES microgrid recovers faster.Beides,the components need to be considered in practical applications of loss tolerance.
作者
唐洪彦
付辉
TANG Hong-yan;FU Hui(Mianyang Polytechnic,Mianyang 621000,China)
出处
《电力电子技术》
CSCD
北大核心
2020年第2期66-68,95,共4页
Power Electronics
基金
国家自然科学基金(61401072)。
关键词
微电网
供电品质
稳定性
谐波
microgrid
power supply quality
stability
harmonic
