Work

Towards resilient operation of microgrid: A distributionally robust frequency-security constrained method

Year: 2025

Type: article

Abstract: The microgrid with high penetration of inverter-based resources (e.g., wind turbines and batteries) exhibits a low-inertia characteristic, which puts microgrid frequency security at serious risk in case of power disturbance. In this paper, we propose a distributionally robust frequency-security constrained near real-time operation (DR-FSC-nRTO) model to determine power outputs and reserve capacities of diesel generators, wind turbines and batteries, and load shedding with total cost minimization while maintaining frequency security if a power disturbance occurs. The proposed DR-FSC-nRTO model explicitly considers frequency support from wind turbines with different deloading modes and incorporates frequency response models and frequency-security constraints via a hybrid-step discretization scheme. Besides, the proposed DR-FSC-nRTO model accounts for wind power uncertainty by employing Wasserstein-metric DR chance constraints, which are reformulated as tractable formulations. Consequently, the proposed DR-FSC-nRTO model becomes a mixed-integer linear programming. Case studies demonstrate the effectiveness of the proposed DR-FSC-nRTO method.

Source: International Journal of Electrical Power & Energy Systems

DOI: 10.1016/j.ijepes.2025.110986

Authors: Lun Yang, Miaomiao Li, Xiaoyu Cao, Chen Zhang, Qiuwei Wu, Zitong Zhang

Institutions: Xi'an Jiaotong University, Queen's University Belfast

Language: English

Topic: Microgrid Control and Optimization

Subfield: Control and Systems Engineering

Field: Engineering

Domain: Physical Sciences

SDGs: Affordable and clean energy, Industry, innovation and infrastructure, Climate action

Open Access status: gold

Estimated APC paid: $3,920