A Global State Observer-Based Open-Switch Fault Diagnosis for Bidirectional DC–DC Converters in Hybrid Energy Source System

Hang, Jun; Ge, Chaoqiang; Ding, Shichuan; Li, Wei; Huang, Yourui; Wang, Hua

doi:10.1109/tpel.2023.3290603

Cited by 6 publications

(1 citation statement)

References 34 publications

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“…Reference [195] addresses balanced connection to the power grid for a combination of a wind turbine, a synchronous generator, and a photovoltaic array. Reference [196] presents the use of observers for DC-DC converters. Several recent papers have dealt with the emerging issues in observer design: observers were used to solve various aspects of gridconnected inverters [197][198][199][200], in a neutral-point clamped (NPC) converter that acts as an interface between the grid and many energy systems [201], as well as in microgrids, as demonstrated in papers [202,203], where linear discrete-time (digital) Luenberger observers were used.…”

Section: Observers For Electric Power Systemsmentioning

confidence: 99%

Linear, Nonlinear, and Distributed-Parameter Observers Used for (Renewable) Energy Processes and Systems—An Overview

Radisavljevic-Gajic,

Karagiannis,

Gajic

2024

Energies

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Full- and reduced-order observers have been used in many engineering applications, particularly for energy systems. Applications of observers to energy systems are twofold: (1) the use of observed variables of dynamic systems for the purpose of feedback control and (2) the use of observers in their own right to observe (estimate) state variables of particular energy processes and systems. In addition to the classical Luenberger-type observers, we will review some papers on functional, fractional, and disturbance observers, as well as sliding-mode observers used for energy systems. Observers have been applied to energy systems in both continuous and discrete time domains and in both deterministic and stochastic problem formulations to observe (estimate) state variables over either finite or infinite time (steady-state) intervals. This overview paper will provide a detailed overview of observers used for linear and linearized mathematical models of energy systems and review the most important and most recent papers on the use of observers for nonlinear lumped (concentrated)-parameter systems. The emphasis will be on applications of observers to renewable energy systems, such as fuel cells, batteries, solar cells, and wind turbines. In addition, we will present recent research results on the use of observers for distributed-parameter systems and comment on their actual and potential applications in energy processes and systems. Due to the large number of papers that have been published on this topic, we will concentrate our attention mostly on papers published in high-quality journals in recent years, mostly in the past decade.

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