Performance analysis of grid-forming inverters in existing conformance testing. (November 2022)

• Record Type: Journal Article
• Authors: Kikusato, Hiroshi; Orihara, Dai; Hashimoto, Jun; Takamatsu, Takahiro; Oozeki, Takashi; Matsuura, Takahiro; Miyazaki, Satoshi; Hamada, Hiromu; Miyazaki, Teru
• Is Part Of: Energy reports. Volume 8(2022)Supplement 15
• Page Start: 73
• Page End: 83
• Publication Date: 2022-11
• Subjects: Grid-following inverter -- Grid-forming inverter -- Inertial response -- Low-voltage ride through -- Islanding detection -- Current limiting -- IEEE 2800 -- IEEE 1547; Power resources -- Periodicals; Energy industries -- Periodicals; Power resources; Periodicals; Electronic journals; 621.04205
• DOI: 10.1016/j.egyr.2022.10.106
• Languages: English
• ISSNs: 2352-4847

Abstract

Abstract: Grid-forming (GFM) inverters are promising technologies in future power systems. Although the voltage-source characteristic of the GFM inverter has been validated to enhance the stabilities in low-inertia power systems, modifying protective function mechanisms is needed from grid-following (GFL) inverters with the current-source characteristic. Therefore, the protective functions that coexist with grid stabilization capabilities in GFM inverters and their verification methods should be studied for practical deployment. This paper applies the existing Japanese conformance testing on prototypes of GFL and GFM inverters to reveal issues in the existing conformance testing framework, which was not designed to consider the voltage-source characteristics of GFM inverters. The test results identify the three main issues of GFM inverters in the existing test framework. The discussion based on the results will provide helpful knowledge to design future provisions on the functional requirements of GFM inverters and their verification methods.