Predictive variable‐structure system control of unity power factor rectifiers

Korelič, Jože; Jezernik, K.

doi:10.1049/iet-pel.2012.0277

Cited by 7 publications

(6 citation statements)

References 15 publications

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“…The first step requires knowledge of ρ + and ρ − for x = x * (t), which can be obtained using (10) and (7). The second step consists of obtaining the stability interval for γ, which are given by Theorem 1 in the regulation case and Theorem 2 in the tracking case.…”

Section: Design Proceduresmentioning

confidence: 99%

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Switching Frequency Regulation in Sliding Mode Control by a Hysteresis Band Controller

Repecho

Biel

Olm

et al. 2017

IEEE Trans. Power Electron.

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Abstract-Fixing the switching frequency is a key issue in sliding mode control implementations. This paper presents a hysteresis band controller capable of setting a constant value for the steady state switching frequency of a sliding mode controller in regulation and tracking tasks. The proposed architecture relies on a piecewise linear modeling of the switching function behavior within the hysteresis band, and consists of a discrete-time integraltype controller that modifies the amplitude of the hysteresis band of the comparator in accordance with the error between the desired and the actually measured switching period. For tracking purposes an additional feedforward action is introduced to compensate the time variation of the switching function derivatives at either sides of the switching hyperplane in the steady state. Stability proofs are provided, and a design criterion for the control parameters to guarantee closed-loop stability is subsequently derived. Numerical simulations and experimental results validate the proposal.

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Section: Design Proceduresmentioning

confidence: 99%

“…Thus, switching frequency reduction is a field of active research, and interesting results have been obtained with predictive sliding mode in a unity power factor rectifier [7], and with double hysteresis band schemes in active filters [8] and voltage source inverters [9].…”

mentioning

confidence: 99%

Switching Frequency Regulation in Sliding Mode Control by a Hysteresis Band Controller

Repecho

Biel

Olm

et al. 2017

IEEE Trans. Power Electron.

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show abstract

“…Other commonly solutions are based on using transformations such as αβ-frame [22], [23], dq-frame [24] or using three independent current controllers which structure has to be changed over every 60…”

Section: Introductionmentioning

confidence: 99%

Sliding-Mode Control for a Three-Phase Unity Power Factor Rectifier Operating at Fixed Switching Frequency

Guzmán

Vicuña

Morales

et al. 2016

IEEE Trans. Power Electron.

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Abstract-This paper presents an improved variable hysteresisband current-control in natural frame for a three-phase unity power rectifier. The proposed control algorithm is based on three decoupled sliding-mode controllers combined with three independent Kalman filters. The use of Kalman filters instead of a non-adaptive state observer improves the quality of the estimated signals in presence of noise, increasing the immunity of the control loop in noisy environments. To reduce drastically the computational load in the Kalman algorithm, a reduced bilinear model is derived which allows to use a Kalman filter algorithm instead of an extended Kalman filter. A fast output-voltage control is also presented which avoids output-voltage variations when a sudden change in the load or a voltage sag appears. Moreover, a fixed switching frequency algorithm is proposed which uses a variable hysteresis-band in combination with a switching decision algorithm, ensuring a switching spectrum concentrated around the desired switching frequency. The overall control proposal has been fully integrated into a digital signal processor. Selected experimental results are introduced to validate the theoretical contributions of this paper.

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“…Researchers have developed direct power control which leads to direct control of active and reactive powers (Yan et al, 2014;Zhang et al, 2013;Norniella et al, 2011;Kwak et al, 2014). Control algorithms based on predictive approaches (Antoniewicz and Kazmirkowski, 2008;Zhang et al, 2013;Kwak et al, 2014;Xia et al 2012;Ramirez et al, 2014;Korelic and Jezernik, 2013) and input-output feedback linearization approaches (Gensior et al, 2009;Burgos et al, 2005) have been also developed. Although the above-mentioned methods can provide improved performances, they suffer from their complexity or ease of tuning.…”

Section: Introductionmentioning

confidence: 99%

Adaptive ac filter parameters identification for voltage-oriented control of three-phase voltage-source rectifiers

Bechouche¹,

Seddiki²,

Abdeslam³

et al. 2015

IJMIC

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This paper proposes an adaptive voltage-oriented control (VOC) with online ac filter parameters identification for three-phase voltage-source rectifier (VSR). A new method based on adaptive linear neuron (ADALINE) is first designed to identify the ac filter parameters. For accurate identification, the VSR nonlinearity are included in the ADALINE structure. Thereafter, the developed ADALINE is inserted in the VOC to realize an adaptive VOC. Thus, the decoupled terms and the proportional-integral current controller gains are updated online. Finally, the ADALINE ability to track properly the ac filter parameters is investigated by experimental analysis. It shows that the VSR nonlinearity consideration has significant influence on the resistance identification. Compared to the VOC, the enhancement of the proposed adaptive VOC is experimentally proved. The originality of this paper is the building of a VSR model including VSR nonlinearity that is suitable for implementation with ADALINE. This leads to ease implementation and accurate identification.

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Predictive variable‐structure system control of unity power factor rectifiers

Cited by 7 publications

References 15 publications

Switching Frequency Regulation in Sliding Mode Control by a Hysteresis Band Controller

Switching Frequency Regulation in Sliding Mode Control by a Hysteresis Band Controller

Sliding-Mode Control for a Three-Phase Unity Power Factor Rectifier Operating at Fixed Switching Frequency

Adaptive ac filter parameters identification for voltage-oriented control of three-phase voltage-source rectifiers

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