DC-AC Bridge Real-time Optimal Control based on a Reduced-Order Observer

In this paper, a real-time optimal controller based on a reduced-order observer is proposed for an DC-AC Bridge. The state feedback optimal controller is designed considering a reduced-order state-space observer to estimate the magnetization current and the transformer's secondary current, whic...

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Bibliographic Details
Published in:Engineering letters 2022-05, Vol.30 (2), p.470
Main Authors: Escobar-Mejıa, Andres, Giraldo, Eduardo
Format: Article
Language:English
Subjects:
Control systems design
Controllers
Hardware-in-the-loop simulation
Real time
State feedback
Time optimal control
Online Access:Get full text
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Summary:In this paper, a real-time optimal controller based on a reduced-order observer is proposed for an DC-AC Bridge. The state feedback optimal controller is designed considering a reduced-order state-space observer to estimate the magnetization current and the transformer's secondary current, which are highly difficult to sense due to their corresponding nature. The closed-loop controlled system is evaluated in simulation and over a Hardware-in-the-loop structure. The closed-loop response is evaluated in simulation and real-time by considering impulse and step references. The closed-loop response is also evaluated over additive noise conditions. In addition, the estimation error for the corresponding estimated variables is also considered.
ISSN:1816-093X
1816-0948