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Multi-Area Asynchronous Grid Operation With Frequency Reserve Sharing
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DOI：10.1109/TPWRS.2024.3382288.png)
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Abstract
En 中文
Frequency security of low-inertia power systems has become an increasing concern due to the high penetration of inverter-based resources. High-voltage direct current (HVDC) is a novel option for frequency regulation in multi-area asynchronous grids, and our focus is specifically on the primary frequency reserve sharing through HVDC. In this paper, we first develop a system frequency response model for multi-area asynchronous grids from which the frequency constraints can be extracted by an approximation algorithm. A frequency-constrained unit commitment model is then established, and an adaptive approach is introduced to modify the constraint bounds in order to fully ensure frequency security. Case study finally validates that the proposed method can maintain the frequency security of multi-area asynchronous grids as well as exploit the operational benefits of HVDC frequency regulation.
Keywords:
HVDC transmission
Frequency control
Frequency response
Security
Mathematical models
Load modeling
Generators
HVDC
frequency regulation
low inertia
unit commitment
inverter-based resource
renewable energy
Journal
IF:
7.2
Papers:
1.1W
Citations:
5.0W