高可再生能源渗透率弱电网的稳定性增强：同步调相机与基于换流器的技术对比
Stability Enhancement in Weak Grids with High Renewable Penetration: Synchronous Condenser vs. Converter-based Technologies
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中文总结 AI 辅助
本文对比研究了同步调相机与具备电网形成能力的STATCOM、E-STATCOM在高可再生能源渗透率弱电网中提供电网支撑服务、增强电网稳定性的性能。
中文摘要 AI 辅助
将可再生能源接入弱电网对维持电网稳定性提出了重大挑战。为确保电网稳定与安全，需提供多项关键服务，包括电压支撑、故障电流注入、系统强度支撑、频率控制及惯量支撑。同步调相机凭借其固有的惯量和故障电流能力，一直是电网稳定性的传统解决方案。电力电子与控制结构的最新进展推动了多种旨在增强电网稳定性的技术发展，可提供有功和无功功率支撑的静止同步补偿器（STATCOM）及增强型STATCOM（E-STATCOM）展现出巨大潜力。这些技术具备电网形成（GFM）能力，可显著提升高可再生能源渗透率弱电网的稳定性。STATCOM和E-STATCOM技术的进步提供了更优的控制可调性、可控阻尼及对电网扰动的即时响应。本文研究了同步调相机与具备电网形成能力的STATCOM、E-STATCOM在提供上述服务及增强高可再生能源渗透率弱电网稳定性方面的对比性能。
英文摘要
Integrating renewable energy sources into weak grids presents significant challenges for maintaining grid stability. Several essential services are required to ensure a stable and secure grid, including voltage support, fault current injection, system strength support, frequency control, and inertia support. Synchronous condensers, with their inherent inertia and fault current capabilities, have been traditional solutions for grid stability. Recent advancements in power electronics and control structures have led to the development of various technologies aimed at enhancing power grid stability. Static synchronous compensators (STATCOM) and Enhanced STATCOM, which can provide active and reactive power support, show considerable promise. These technologies offer grid-forming (GFM) capabilities that can significantly improve the stability of weak grids with high renewable penetration. Advancements in STATCOM and E-STATCOM technologies offer enhanced control tunability, controllable damping, and immediate response to grid perturbations. This paper investigates the comparative performance of synchronous condensers versus STATCOM and Enhanced STATCOM with grid-forming capability in providing services and enhancing the stability of weak grids with high renewable penetration.
