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系统并网技术 微电网 下垂控制 构网型GFM 并网逆变器 ★ 4.0

无子系统约束的多总线直流微电网阻抗稳定性评估

Impedance-Based Stability Evaluation for Multibus DC Microgrid Without Constraints on Subsystems

语言:

中文摘要

针对多总线直流微电网中可再生能源、储能及负载集成带来的电压稳定性挑战,本文提出了一种无需子系统约束的阻抗稳定性评估方法,解决了复杂架构下传统稳定性判据难以应用的问题,为微电网系统的稳定运行提供了理论支撑。

English Abstract

Multibus dc microgrids, which combine renewable energy sources, energy storage systems, and loads, have voltage stability requirement, which solicits increasing research attention in practice. Potentially complex architectures of the multibus dc microgrids make it difficult to evaluate the stability using the conventional stability criteria. In this article, some constraints related to the convent...
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SunView 深度解读

该研究对于阳光电源的储能系统(PowerTitan/PowerStack)及微电网解决方案具有重要参考价值。随着直流微电网应用场景增多,多变换器并联导致的阻抗交互稳定性问题日益突出。该方法无需子系统约束,能更高效地评估阳光电源PCS在复杂微电网架构下的稳定性,有助于优化构网型(GFM)控制策略,提升系统在弱电网或多源互联环境下的鲁棒性,对iSolarCloud平台的系统级运维诊断及故障预警算法优化具有指导意义。