论文标题
基于逆变器的无惯性功率系统的全系统第一旋转稳定性
Whole-System First-Swing Stability of Inverter-Based Inertia-Free Power Systems
论文作者
论文摘要
对系统稳定性的惯性的重视一直是传统网格的长期传统。逆变器的快速和灵活的可控性开辟了新的可能性。本文研究了基于逆变器的无惯性功率系统的{首次旋转稳定性}。我们说明，与经典的富含惯性富含惯性的系统相比，通过快速的主要控制替代惯性（即无惯性），大大扩展了。扩展的稳定区域是完全分散的，并确保了所有时间尺度上所有挥杆模式的全部稳定性，并确保复杂网格中的所有时间尺度和相互作用边界。去除惯性会影响频率稳定性，但可以很好地缓解这些影响。该论文的发现是数学上证明的，并通过IEEE 68-BUS系统的模拟进行了验证。
The emphasis on inertia for system stability has been a long-held tradition in conventional grids. The fast and flexible controllability of inverters opens up new possibilities. This paper investigates the {first-swing stability} of inverter-based inertia-free power systems. We illustrate that by replacing inertia with fast primary control (i.e. inertia-free), the first-swing stability region is greatly extended compared to the classic equal area criterion of inertia-rich systems. The extended stability region is fully decentralised and ensures whole-system stability for all swing modes across all timescales and interaction boundaries in a complex grid. The removal of inertia has impacts on frequency stability but these impacts can be well mitigated. The findings of the paper are proved mathematically and verified by simulation on the IEEE 68-bus system.
