Enhanced Virtual Synchronous Generator Control for Parallel Inverters in Microgrids

被引：434

作者：

Liu, Jia ^{[1
]}

Miura, Yushi ^{[1
]}

Bevrani, Hassan ^{[2
]}

Ise, Toshifumi ^{[1
]}

机构：

[1] Osaka Univ, Div Elect Elect & Informat Engn, Suita, Osaka 5650871, Japan

[2] Univ Kurdistan, Dept Elect & Comp Engn, Sanandaj 6617715175, Iran

来源：

IEEE TRANSACTIONS ON SMART GRID | 2017年 / 8卷 / 05期

关键词：

DC-AC power converters; distributed power generation; droop control; microgrids; power control; power system dynamics; power system modeling; reactive power control; state-space methods; virtual synchronous generator; SYNCHRONVERTERS INVERTERS; CONTROL STRATEGY; REFERENCE-FRAME; OPERATION; AC;

D O I：

10.1109/TSG.2016.2521405

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Virtual synchronous generator (VSG) control is a promising communication-less control method in a microgrid for its inertia support feature. However, active power oscillation and improper transient active power sharing are observed when basic VSG control is applied. Moreover, the problem of reactive power sharing error, inherited from conventional droop control, should also be addressed to obtain desirable stable state performance. In this paper, an enhanced VSG control is proposed, with which oscillation damping and proper transient active power sharing are achieved by adjusting the virtual stator reactance based on state-space analyses. Furthermore, communication-less accurate reactive power sharing is achieved based on inversed voltage droop control feature (V-Q droop control) and common ac bus voltage estimation. Simulation and experimental results verify the improvement introduced by the proposed enhanced VSG control strategy.

引用

页码：2268 / 2277

页数：10

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