研究电网同步,逐步完善模型异质性
B Hartmann1, G Ódor2, K Benedek2,3
1Institute of Energy Security and Environmental Safety, HUN-REN Centre for Energy Research, P.O. Box 49, H-1525 Budapest, Hungary.
这项研究评估了电网模型的复杂性如何影响同步指标. 通用顺序参数有效地捕获了网格动态,即使在异质模型中,也揭示了对空间异质效应的洞察力.
科学领域:
- 电力系统工程 电力系统工程
- 复杂系统动力学 复杂系统动力学
- 非线性动力学是一种非线性动力学.
背景情况:
- 振荡器的相位同步,通常以库拉莫托方程为模型,对于理解电力系统动态至关重要.
- 现有的顺序参数在捕捉同步过渡的全谱方面存在局限性.
- 对同质模型提出了新的指标,但它们在异质电网上的性能尚未得到充分探索.
研究的目的:
- 调查电网模型复杂度增加对同步指标有效性的影响.
- 弥合了解模型异质性如何影响电网动态评估的差距.
- 在详细,异质的电网模型上评估既定和通用顺序参数的性能.
主要方法:
- 开发了电网模型的12种变化,在合强度,节点功率和惯性瞬间方面增加了异质性.
- 使用二次库拉莫托方程和自适应的Runge-Kutta解法器来模拟网格动态.
- 测量阶段,频率和通用顺序参数,将模拟结果与实际网格测量进行比较.
主要成果:
- 通用顺序参数证明了在不同复杂度的模型中捕获细节的卓越能力,特别是在减小的惯性瞬间下.
- 即使是高度异质的电网模型也表现出显著的同步现象.
- 当地频率分析显示,空间异质性可以诱导多峰值行为,与静态模型观测相一致.
结论:
- 通用顺序参数是分析复杂和异质电网模型中的同步的强大度量.
- 不同质的电网模型提供了宝贵的见解,应用于更现实的系统分析.
- 空间异质性在电力系统动态中起着重要作用,可能导致复杂的频率行为.
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