Controllability analysis of Flyback converter with constant power load based on switched linear systems

Hu, Wei; Ding, Zekang; Chen, Xinbing; Liu, Xiaoli

doi:10.1016/j.egyr.2022.08.018

Cited by 2 publications

(1 citation statement)

References 11 publications

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“…Every operating mode of the DC-DC converter cascaded system is a linear subsystem that can be accurately modeled as a switching linear system, 6,7 providing an effective tool for analyzing its control characteristics. By considering the system's structural features, without the need to account for whether the operating frequencies of the front and backstage converters match or not, the control characteristics of the state variables can be analyzed.…”

Section: Introductionmentioning

confidence: 99%

Controllability, reachability, observability performance analysis of ultra‐high voltage converter cascaded systems based on switched linear system model

Yang,

Tao,

Ding

et al. 2023

Circuit Theory & Apps

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SummaryUltra‐high voltage converters are usually employed to transform low voltage to high voltage in microgrids to produce renewable energy. However, it is challenging to develop control techniques due to the complicated structure of ultra‐high voltage converters and the numerous power switches and circuit components, which leads to poor dynamic characteristics of the system and a marked increase in fault rates. In order to understand the control theoretical characteristics of the ultra‐high voltage converter and provide a theoretical basis for circuit parameter analysis and control strategy design, this paper takes the boost converter cascaded system as an example to establish an accurate switching linear system model, discusses the control theoretical characteristics of the ultra‐high voltage converter in detail, and uses the decision theorem to draw the conclusion that the system is structurally controllable, reachable, and observable, simplifying the difficulty of analysis. The simulation and experimental findings show that the conclusion was drawn correctly. The research findings will give the boost converter cascaded systems modulation approach and circuit parameter design a theoretical foundation.

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Section: Introductionmentioning

confidence: 99%

Controllability, reachability, observability performance analysis of ultra‐high voltage converter cascaded systems based on switched linear system model

Yang,

Tao,

Ding

et al. 2023

Circuit Theory & Apps

Self Cite

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Inhomogeneous Singular Linear Switched Systems in Discrete Time: Solvability, Reachability, and Controllability Characterizations

Sutrisno,

Trenn

2023

2023 62nd IEEE Conference on Decision and Control (CDC)

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In this paper we study a novel solvability notion for discrete-time singular linear switched systems with inputs. We consider the existence and uniqueness of a solution on arbitrary finite time intervals with arbitrary inputs and arbitrary switching signals, and furthermore, we pay special attention to strict causality, i.e. the current state is only allowed to depend on past values of the state and the input. A necessary and sufficient condition for this solvability notion is then established. Furthermore, a surrogate switched system (an ordinary switched system that has equivalent input-output behavior) is derived for any solvable system. By utilizing those surrogate systems, we are able to characterize the reachability and controllability properties of the original singular systems using a geometric approach.

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Controllability analysis of Flyback converter with constant power load based on switched linear systems

Cited by 2 publications

References 11 publications

Controllability, reachability, observability performance analysis of ultra‐high voltage converter cascaded systems based on switched linear system model

Controllability, reachability, observability performance analysis of ultra‐high voltage converter cascaded systems based on switched linear system model

Inhomogeneous Singular Linear Switched Systems in Discrete Time: Solvability, Reachability, and Controllability Characterizations

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