Virtual inertia calculation and virtual power system stabiliser design for stability enhancement of virtual synchronous generator system under transient condition

IF 1.6 Q4 ENERGY & FUELS
Ony Asrarul Qudsi, Adi Soeprijanto, Ardyono Priyadi
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Abstract

Enhancing the stability of the Virtual Synchronous Generator (VSG) under transient conditions has become a new challenge for VSG operation. This paper presents the design of a Virtual Power System Stabiliser (VPSS) with virtual inertia calculations for the stability enhancement of the VSG system under transient conditions. The virtual inertia is calculated by considering the transient conditions resulting from a three-phase ground fault and the allowable phase margin in the VSG. This aims to prevent the coupling effect, which can cause the active power loop control and reactive power loop control to operate non-independently. Subsequently, the VPSS is specifically designed based on the determined virtual inertia characteristics. The VPSS design is developed by taking into account the phase angle shift of the VSG. The proposed combination of virtual inertia and VPSS is capable of providing accurate compensation for phase angle changes under transient conditions. To evaluate the performance of the proposed virtual inertia and VPSS, a system-level VSG model is used to thoroughly analyse the system's performance. Based on the results and analysis, it is shown that the control strategy utilising the combination of virtual inertia and the proposed VPSS design can improve VSG stability under transient conditions.

Abstract Image

暂态条件下虚拟同步发电系统的虚拟惯性计算和虚拟电力系统稳定器设计
提高虚拟同步发电机在暂态条件下的稳定性已成为虚拟同步发电机运行面临的新挑战。本文提出了一种基于虚拟惯性计算的虚拟电力系统稳定器(VPSS)的设计方法,以增强VSG系统在暂态条件下的稳定性。通过考虑三相接地故障引起的暂态条件和VSG的允许相位裕度来计算虚拟惯量。这样做的目的是为了防止耦合效应导致有功回路控制和无功回路控制不独立运行。然后,根据确定的虚拟惯性特性对VPSS进行了具体设计。VPSS的设计考虑了VSG的相位角偏移。所提出的虚拟惯性与VPSS的结合能够对瞬态条件下的相角变化提供精确的补偿。为了评估所提出的虚拟惯性和VPSS的性能,采用系统级VSG模型对系统性能进行了全面分析。结果和分析表明,将虚拟惯性与所提出的VPSS设计相结合的控制策略可以提高VSG在瞬态条件下的稳定性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
IET Energy Systems Integration
IET Energy Systems Integration Engineering-Engineering (miscellaneous)
CiteScore
5.90
自引率
8.30%
发文量
29
审稿时长
11 weeks
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