In order to solve the active-power dynamic oscillation problem of parallel system for traditional energy storage virtual synchronous generator(VSG)and diesel generator set(DGS)under load disturbance,an active-power dynamic oscillation suppression strategy for diesel storage microgrid based on active-power proportional differential feedforward VSG(APDF-VSG)is proposed in this paper.Firstly,the small signal model of the parallel system for energy storage VSG and DGS is established,as well as the influences of virtual inertia,virtual damp and output impedance parameters of energy storage VSG on active-power oscillation of the system are analyzed.On this basis,the active-power dynamic oscillation suppression strategy based on ADPF-VSG is proposed and the corresponding parameter design process is given.Finally,the MATLAB simulation model of the parallel system for energy storage VSG and DGS is established,and the simulation results are used to verify the effectiveness of the proposed APDF-VSG control strategy in suppressing active-power dynamic oscillation of the diesel-storage-microgrid.
关键词
储能虚拟同步机/微网/有功动态振荡/小信号模型
Key words
energy storage virtual synchronous generator/microgrid/active-power dynamic oscillation/small signal model
维普
万方数据