Protecting frequency stability using local inertial mapping

The Journal of Engineering

Jean Bosco Ubertalli¹ 

[1] School of Electronic, Electrical Engineering and Computer Science , Ashby Building, Stranmillis Rd, Belfast, BT9 5AG , UK

关键词: map inertia;    battery energy storage;    intermittent generation;    assessing preserving frequency stability;    local inertial mapping;    grid sizing;    inertia reduction;    strong inertial provision;    Power Factory;    active power;    wind sources;    system events;    local energy;    IEEE 39-bus grid model;    simulation studies;    grids;    ROCOF measurements;    low-inertia;    nodal phasor measurements;    isolated systems;    grid-level protection;    energy provision;    protecting frequency stability;    inertial measurements;    additional generation;    greater penetration;    contributory counter-measures;   

DOI  :  10.1049/joe.2018.0229

学科分类：工程和技术（综合）

来源: IET

【 摘 要 】

The study investigates the role of inertial mapping in assessing and preserving frequency stability for grids accommodating greater penetration of low-inertia, intermittent generation, including wind sources. The study considers grid sizing, including large and isolated systems and an approach to limit the excessive rate of change of frequency (ROCOF). Simulation studies using DIGSILENT (Power Factory) and the IEEE 39-bus grid model with nodal phasor measurements have been used to evaluate the work. The proposed approach identifies areas of weak or strong inertial provision and battery energy storage has been used to release active power during disturbances and provide local energy to lessen the impacts of inertia reduction. The study proposes using frequency and ROCOF measurements during system events to map inertia and calculate energy provision. Inertial measurements are used to determine areas where additional generation or storage is required in order to preserve frequency stability and provide contributory counter-measures for grid-level protection.

【 授权许可】

CC BY