Open AccessFunctional Location Analysis of Inertia Support and Primary Frequency Modulation of Virtual Synchronous Generator in Power System
Author(s) -
Zijiao Han,
Yanfeng Ge,
Zhengwen Li,
Chenqi Wang,
baoshi Wang,
Jiapeng Wei
Publication year - 2019
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1325/1/012208
Subject(s) - inertia , frequency deviation , frequency modulation , control theory (sociology) , automatic frequency control , power (physics) , computer science , function (biology) , physics , telecommunications , control (management) , bandwidth (computing) , classical mechanics , quantum mechanics , artificial intelligence , evolutionary biology , biology
With the continuous improvement of renewable energy penetration, the inertia and primary frequency modulation capability of synchronous power grid are declining. If the virtual synchronous generator (VSG) technology is used for renewable energy generation, it can make due contribution to reducing the frequency variation and frequency deviation of the system under the impact of high power gap. The inertia support and primary frequency modulation function positioning in VSG research are not clear. In this paper, the inertia support function of VSG and its physical significance are analyzed, the expression of inertia support power of VSG is deduced, the location distinction between inertia support function of VSG and primary frequency modulation function is analyzed, and the different control function pairs of VSG in the process of large synchronous power grid frequency accident are simulated and analyzed,and study the effect of system frequency variation.