Compensation for step-load variations when applying synergetic control

Abstract-The theory of synergetic control was introduced in a power electronics context in a previous paper. In this paper, we review the theory, then focus on some practical aspects with reference to both simulations and actual hardware. In particular, we address management of the current limit condition and solve it with several different approaches. Adaptive and other control laws are also introduced to improve the control performance. The various controls are evaluated by applying the classical voltage reference step test and the step load test.Index Terms-Current limit, dynamic parameter adaptation, integral error term, nonlinear control, switching converter, synergetic control theory.

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“…The response times obtained with the various control laws can be estimated using a small-signal model as explained in [12].…”

Section: Discussionmentioning

confidence: 99%

Synergetic control for DC-DC boost converter: implementation options

Santi

Monti

et al. 2003

IEEE Trans. on Ind. Applicat.

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131

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“…Etant donné que l'entrée de commande du contrôleur conventionnel en mode sliding a des caractéristiques discontinues inhérentes, qui engendrent des vibrations de couple et donc du moteur. Par conséquent, pour éviter le couple vibrant et pour réduire l'erreur de l'état d'équilibre, une nouvelle approche pour la commande des systèmes nonlinéaires, l'approche synergétique à la théorie de commande, était présentée dans [6]. Des travaux récents ont été apportés sur l'application de la commande synergétique aux convertisseurs de puissance de commutation, dans lequel le niveau de rendement élevé, la simplicité de conception et la flexibilité des contrôleurs synergétiques ont été démontrés par la simulation et les expériences [5][6][7].…”

Section: La Commande Synergetiqueunclassified

Application de la commande synergétique au contrôle de vitesse d’une machine asynchrone

Laribi,

Aït Cheikh,

Larbès

et al. 2023

J. Ren. Energies

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Dans cet article, nous nous sommes intéressés à l’application de la commande à structure variable à la machine asynchrone où le réglage de vitesse par mode glissant se distingue comme un outil puissant et efficace. Cependant ce type de contrôleur à structures variables souffre d’un inconvénient majeur qui est le phénomène de chattering. Afin de réduire ce phénomène, nous proposons un nouveau schéma de commande basé sur la commande synergétique nouvellement introduite dans la commande des moteurs électriques. En effet les résultats de simulation obtenus ont prouvés les avantages apportés par cette nouvelle technique. Surtout du point de vue réduction de chattering qui est l’objectif principal de cet article.

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“…In this paper the focus is on a different approach, synergetic control [13][14][15][16], which tries to overcome the previously described problems of linear control by explicitly using a model of the system for control synthesis. The synergetic control shares with sliding mode control the properties of order reduction and decoupling design procedure, but it has several advantages.…”

Section: Alternativementioning

confidence: 99%

“…A significant example of this approach is sliding mode control, used mostly for continuous-time systems [6][7][8][9][10]. This control theory has been extensively studied and applied to power * The step load experimental and simulation results have been presented in [16]. electronics systems, since the variable-structure nature of power electronics systems allows a natural application of this theory.…”

Section: Introductionmentioning

confidence: 99%

Synergetic Control for Power Electronics Applications: A Comparison With the Sliding Mode Approach

Santi

Monti

et al. 2004

J CIRCUIT SYST COMP

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The theory of synergetic control is introduced in a power electronics context in a previous paper. In this paper we review the theory, then we focus on a comparison with the sliding mode approach. Common elements and main differences are underlined and illustrated through a comparative simulation example. The main advantages of synergetic control are that it is well-suited for digital implementation, it gives constant switching frequency operation, and it gives better control of the offmanifold dynamics. Finally, simulation and experimental results under transient conditions are compared. Advanced control laws with adaptation are presented and discussed to show how to better exploit the features of the synergetic control. The example used throughout the paper is the control of a Boost converter operating in continuous conduction mode. *

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Compensation for step-load variations when applying synergetic control

Cited by 14 publications

References 3 publications

Synergetic control for DC-DC boost converter: implementation options

Synergetic control for DC-DC boost converter: implementation options

Application de la commande synergétique au contrôle de vitesse d’une machine asynchrone

Synergetic Control for Power Electronics Applications: A Comparison With the Sliding Mode Approach

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