Modeling of initial fault response of inverter-based distributed energy resources for future power system planning. (May 2020)

• Record Type: Journal Article
• Authors: Popadic, Bane; Dumnic, Boris; Strezoski, Luka
• Is Part Of: International journal of electrical power & energy systems. Volume 117(2020)
• Publication Date: 2020-05
• Subjects: IBDERs initial fault response modeling -- Distributed energy resource -- Power system planning -- Grid connected converter; Electrical engineering -- Periodicals; Electric power systems -- Periodicals; Électrotechnique -- Périodiques; Réseaux électriques (Énergie) -- Périodiques; Electric power systems; Electrical engineering; Periodicals; 621.3
• DOI: 10.1016/j.ijepes.2019.105722
• Languages: English
• ISSNs: 0142-0615

Abstract

Highlights: Initial fault response of the IBDERs is higher than inverter's fault current limit. Voltage drop, grid impedance, control parameters influence on IBDERs fault response. Highly accurate IBDERs' fault responses models including the initial peak current. Easy to implement models for existing fault calculation solvers. Suitable for calculations in large-scale systems with high proliferation of IBDERs. Suitable for system planning in systems with high proliferation of IBDERs. Abstract: Considering the development trends of renewable energy technologies, it is easy to understand why the future direction of the development for the power system will require a significant change in an approach to system planning and modeling. This is particularly the case with a high amount of inverter based distributed energy resources that can introduce non-linearity and higher fault current contribution, especially during the transients. In that regard, it is important to develop a new and a more precise model of the inverter based distributed energy resources, focusing on the initial fault response of the inverter. The most important factors, influencing the initial inverter response to the grid faults are investigated within the paper. Based on the experimental verification of these factors on the advanced laboratory prototype for testing the grid integrated renewable energy sources, this paper proposes a novel and accurate model of the inverter based distributed energy resources under grid faults.