Improved Stabilization for Robust Fixed Point Transformations-Based Controllers

Várkonyi, Teréz A.; Tar, József K.; Rudas, Imre J.

doi:10.20965/jaciii.2013.p0418

Cited by 7 publications

(4 citation statements)

References 9 publications

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“…It can be hypothesized that robust controllers would significantly improve performance of the engine in these conditions, however, the designed uncertainties would have to be recalculated. Performance could be further enhanced by application of algorithms from the area of computational intelligence, as illustrated in some recent works [27,28]. Another path would be to test the possible application of additive and multiplicative uncertainties to improve results [29].…”

Section: Conclusion and Discussionmentioning

confidence: 99%

Robust Control of Small Turbojet Engines

et al. 2019

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Modern turbojet engines mainly use computerized digital engine control systems. This opens the way for application of advanced algorithms aimed at increasing their operational efficiency and safety. The theory of robust control is a set of methods known for good results in complex control tasks, making them ideal candidates for application in the current turbojet engine control units. Different methodologies in the design of robust controllers, utilizing a small turbojet engine with variable exhaust nozzle designated as iSTC-21v, were therefore investigated in the article. The resulting controllers were evaluated for efficiency in laboratory conditions. The aim was to find a suitable approach and design method for robust controllers, taking into account the limitations and specifics of a real turbojet engine and its hardware, contrary to most studies which have used only simulated environments. The article shows the most effective approach in the design of robust controllers and the resulting speed controllers for a class of small turbojet engines, which can be applied in a discrete digital control environment.

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Section: Conclusion and Discussionmentioning

confidence: 99%

Robust Control of Small Turbojet Engines

et al. 2019

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“…Other approaches which have been taken in advanced control of gas turbine engines were robust, LQ, and optimal control. These methodologies have been already found to be beneficial in solution of complex control problems as illustrated for example in [28,29]. They were successfully applied in the envisioned engine control systems, the robust control algorithm being described in [30], and LQ control algorithms applied in gas turbine engine control [31,32].…”

Section: Introductionmentioning

confidence: 99%

Intelligent Situational Control of Small Turbojet Engines

Andoga

Főző

Judicak

et al. 2018

International Journal of Aerospace Engineering

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Improvements in reliability, safety, and operational efficiency of aeroengines can be brought in a cost-effective way using advanced control concepts, thus requiring only software updates of their digital control systems. The article presents a comprehensive approach in modular control system design suitable for small gas turbine engines. The control system is based on the methodology of situational control; this means control of the engine under all operational situations including atypical ones, also integrating a diagnostic system, which is usually a separate module. The resulting concept has been evaluated in real-world laboratory conditions using a unique design of small turbojet engine iSTC-21v as well as a state-of-the-art small turbojet engine TJ-100. Our results show that such advanced control system can bring operational quality of an engine with old turbocompressor core iSTC-21v on par with state-of-the-art engines. Dedicated to the memory of Ladislav Madarász

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“…In this paper we investigate how the recently developed RFPT based control design can give a useful solution to diabetes control [12], [13]. This method has several benefits that will be detailed below.…”

Section: Introductionmentioning

confidence: 99%

Application of Robust Fixed Point Control in Case of T1DM

Eigner

Horváth

Tar

et al. 2015

2015 IEEE International Conference on Systems, Man, and Cybernetics

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Abstract-Adaptive, model-free control of Type 1 Diabetes Mellitus (T1DM) is a lack in the field of diabetes control, since, most of the applied control strategies are model-based ones. The main problem is that difficult to formulate exact mathematical models to replicate the physiological processes, not just because of their behavior, rather then these processes are changing patient-by-patient. Furthermore, the developed models so far, are highly non-linear and difficult to manage. A possible adaptive control solution can be the recently developed Robust Fixed Point Transformation (RFPT)-based control design method, which can provide control action, based on the observations about the actual output of a controlled system. In this paper we show a survey, how can be used this novel technique related with a known, highorder glucose-insulin model, to investigate the usability according to diabetes control.

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Improved Stabilization for Robust Fixed Point Transformations-Based Controllers

Cited by 7 publications

References 9 publications

Robust Control of Small Turbojet Engines

Robust Control of Small Turbojet Engines

Intelligent Situational Control of Small Turbojet Engines

Application of Robust Fixed Point Control in Case of T1DM

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