Work

Decentralized Adaptive Control With Virtual Inertia for Cascaded-Type VSGs

Year: 2025

Type: article

Abstract: This paper presents a decentralized adaptive control for cascaded-type virtual synchronous generators (CVSGs) in microgrids. By leveraging a frequency correction term derived from the local power derivative, the virtual inertia is adaptively adjusted without relying on phase-locked loops (PLLs), enabling a fully communication-free implementation. Compared to the existing methods, the need for PLLs is eliminated. The main novelty of the proposed method is the integration of adaptive inertia, PLL-free control and decentralization. Next, the stability of the proposed controller is assessed using the Lyapunov energy function method. Finally, its performance is validated through MATLAB/Simulink simulation and experiments.

Source: IEEE Open Journal of Power Electronics

DOI: 10.1109/ojpel.2025.3580399

Authors: Lang Li, Xiaochao Hou, Siqi Fu

Institutions: Moutai Institute, Central South University, Changsha University

Language: English

Topic: Microgrid Control and Optimization

Subfield: Control and Systems Engineering

Field: Engineering

Domain: Physical Sciences

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

Open Access status: gold

Estimated APC paid: $2,075