Control of DC-DC buck-boost converter using exact linearization techniques

Liebal, D.; Vijayraghavan, P.; Sreenath, N.

doi:10.1109/pesc.1993.471946

Cited by 16 publications

(12 citation statements)

References 2 publications

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“…Solving (15) and (16) using (8), (9), and (10), and substituting for in terms of and , we get (17) where (18) …”

Section: B Sido Control Strategymentioning

confidence: 99%

“…Conventionally, the problem of nonlinear control-to-output conversion has been addressed based on the linearization around an operating point [6]- [8], or by using feedback linearization [9], [10]. The linear approximations for stability does not hold good for wide output voltage range converter, as changes in operating point induce changes in the control-to-output transfer function.…”

Section: Introductionmentioning

confidence: 99%

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Minimum Phase Wide Output Range Digitally Controlled SIDO Boost Converter

Manohar

Hunt²,

Balsara

et al. 2015

IEEE Trans. Circuits Syst. I

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This paper presents a novel control technique for a wide output voltage range digitally controlled SIDO boost converter. It employs minimum phase conditions reported in [1], [2] and extends the same to SIDO boost converter to eliminate the effect of RHP zero. Further, the proposed work employs input-output linearization technique [3], [4] to linearize the control-to-output transfer function across different operating points to achieve improved stability under unbalanced loads and a wide output voltage range on each output of the proposed SIDO boost power converter. The SIDO boost regulator was verified experimentally for an input voltage of 3.3 V and a maximum simultaneous load current of 350 mA on each output. Measurement results demonstrate that the proposed design achieves a wide output voltage range of 4.8 V-13.75 V, with ability to dynamically transition across these different output voltages in both small and big voltage steps.

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“…Solving (15) and (16) using (8), (9), and (10), and substituting for in terms of and , we get (17) where (18) …”

Section: B Sido Control Strategymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Minimum Phase Wide Output Range Digitally Controlled SIDO Boost Converter

Manohar

Hunt²,

Balsara

et al. 2015

IEEE Trans. Circuits Syst. I

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show abstract

“…Applying the adaptive control laws (8), (22), (28), (29), and (30) to the nonlinear system (1) and subtracting the reference model (20) from the feedback linearized model (9), we have the error dynamics (25). Considering the Lyapunov function…”

Section: Proofmentioning

confidence: 99%

Adaptive fault‐tolerant control for feedback linearizable systems with an aircraft application

Gao

Wang

2014

Intl J Robust & Nonlinear

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SummaryThis paper investigates fault‐tolerant control (FTC) for feedback linearizable systems (FLSs) and its applications. The dynamic effects caused by the actuator faults on the feedback linearized model are firstly analyzed, which reveals that under actuator faults, the control input in the linearized model is affected by uncertain terms. In the framework of model reference control, the first FTC strategy is proposed as a robust controller, which achieves asymptotic tracking control of the FLS under actuator faults. A disadvantage of this strategy is that it relies on explicit information about several parameters in the actuator faults. This requirement is later relaxed by combining the robust FTC strategy with an adaptive technique to generate the adaptive FTC law, which is then improved to alleviate possible chattering of the actuator and estimation drifting of the adaptive parameter. Finally, the proposed FTC strategies are evaluated by reference command tracking control of a pendulum and an air‐breathing hypersonic vehicle under actuator faults. Simulation results demonstrate good tracking performance, which confirms effectiveness of the proposed strategies. Copyright © 2014 John Wiley & Sons, Ltd.

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“…On the other hand, on-line patterns offer a number of control advantages, par ticularly in high-performance applications; among these are minimiza tion of tracking errors, zero steady-state errors, and the ability to implement enhanced control techniques in digital systems (digital-sig nal-processor-(DSP) or microprocessor-based systems). For instance, the literature has recently reported improved control techniques which are based upon nonlinear strategies [3]- [4].…”

Section: Introductionmentioning

confidence: 99%

DSP-based space-vector PWM pattern generators for three-phase current source rectifiers and inverters

Joós¹,

Jin

1997

Can. J. Electr. Comput. Eng.

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Current source converters (rectifiers and inverters) are usually modulated using off-line pattern generators, due to the complex requirements of the switch gating signals. However, on-line patterns (carrier-and space-vector-based) offer a number of control advantages, such as tracking-error minimization, zero steady-state error, and potential implementation of enhanced control strategies. With the capability of microprocessors and digital signal processors (DSPs), digital space-vector modulation offers an interesting alternative to standard carrier-based modulation techniques. This paper addresses practical issues such as switching-frequency minimization, uncharacteristic-harmonic reduction, and delay compensation. Improved space-vector algorithms are derived that (a) reduce switching frequency, (b) improve reference tracking, and (c) reduce harmonic distortion. Experimental results on a 2-kVA current source rectifier are used to validate the proposed algorithms and control techniques. On module g6n£ralement les convertisseurs de sources de courant (rectificateurs et inverseurs) en utilisant des g£n£rateurs hors-ligne, a cause des exigences complexes des signaux de commande. Cependant, la generation en ligne offre plusieurs avantages comme la minimisation de l'erreur de poursuite, une erreur nulle en regime permanent, et 1'implantation potentielle de meilleures strategies de commande. Les microprocesseurs et les processeurs numlriquesde signaux (DSP) offrent une alternative intlressante aux modulations de porteuse standards. Cet article traite de sujets pratiques tels que la minimisation de la frequence de commutation, la reduction d'harmonique non-caractlristique, et la compensation de d£lai. On derive des algorithmes a espace vectoriel amlliores qui r€duisent la frequence de commutation, amlliorent la poursuite de la reference, et r£duisent la distortion harmonique. Des resultats expe>imentaux sur un rectificateur de source de courant de 2 kVA sont utilises pour valider les algorithmes et les techniques de commande proposes.

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Control of DC-DC buck-boost converter using exact linearization techniques

Cited by 16 publications

References 2 publications

Minimum Phase Wide Output Range Digitally Controlled SIDO Boost Converter

Minimum Phase Wide Output Range Digitally Controlled SIDO Boost Converter

Adaptive fault‐tolerant control for feedback linearizable systems with an aircraft application

DSP-based space-vector PWM pattern generators for three-phase current source rectifiers and inverters

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