A General Mathematical Model for LVRT Capability Assessment of DER-Penetrated Distribution Networks

IEEE Access

Amin Safari¹  Pouya Salyani²  Kazem Zare²  Mehdi Abapour²  Miadreza Shafie-Khah³ 

[1] Department of Electrical Engineering, Azarbaijan Shahid Madani University, Tabriz, Iran;Electrical Engineering Department, University of Tabriz, Tabriz, Iran;School of Technology and Innovations, University of Vaasa, Vaasa, Finland;

关键词: Differential algebraic equation (DAE);    distributed energy resource (DER);    penetrated distribution network (DPDN);    low voltage ride through (LVRT);    Monte Carlo;   

DOI  :  10.1109/ACCESS.2020.3006875

来源: DOAJ

【 摘 要 】

Low voltage ride through (LVRT) is one of the indispensable issues of recent decade in the context of grid codes. LVRT stands for the ability of a generation facility to stay connected during the voltage dip. Despite the numerous discussions in recent works, but they mostly concentrate on the LVRT-based control of distributed energy resources (DERs) integrated into a microgrid and its improvement. However, what has been hidden and not addressed any more yet is an index to measure the LVRT capability of a DER-penetrated distribution network (DPDN) under different voltage sags. This takes precedence when we want to evaluate the LVRT capability of DPDNs with consideration of various LVRT categories of DERs mandated in IEEE 1547 standard. This paper introduces a general framework for LVRT assessment of a DPDN by solving a system of differential algebraic equations (DAEs). Then expected LVRT capability of a DPDN is evaluated by a proposed LVRT index through the implementation of Monte Carlo simulation technique.

【 授权许可】

Unknown