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配备正交优先限流器的虚拟同步机暂态稳定性分析

Transient Stability Analysis of Virtual Synchronous Generator Equipped With Quadrature-Prioritized Current Limiter

语言:

中文摘要

本文研究了配备正交优先限流器(q-prioritized CL)的虚拟同步机(VSG)在过流保护激活时的暂态稳定性。研究表明,除了主控制器正反馈引起的失稳外,限流器的介入会改变VSG的运行特性,可能导致系统在故障期间出现新的失稳风险。

English Abstract

A current limiter (CL), which protects virtual synchronous generators (VSGs) from overcurrents, may significantly alter the operation of the VSGs when activated. In this letter, a transient stability analysis of VSGs equipped with quadrature (q-)prioritized CL is performed. This study shows that in addition to the instability caused by the positive feedback of the primary controller, a VSG could b...
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SunView 深度解读

随着阳光电源构网型(Grid-Forming)储能系统(如PowerTitan系列)在全球电网中的渗透率提升,VSG控制策略的稳定性至关重要。本文提出的正交优先限流策略及暂态稳定性分析,直接关系到阳光电源储能变流器(PCS)在弱电网或故障穿越工况下的安全运行。建议研发团队在PCS控制算法中引入该稳定性分析模型,优化限流逻辑,以提升产品在极端电网条件下的鲁棒性,确保在故障期间不发生脱网,从而增强阳光电源在构网型技术领域的竞争优势。