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

Guzmán, Ramón; Vicuña, Luis García de; Morales, J.; Castilla, Miguel; Matas, J.

doi:10.1109/tpel.2015.2403075

Cited by 77 publications

(62 citation statements)

References 35 publications

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“…This algorithm is presented in [14], [15] and leads to obtain a quasi-fixed switching frequency. Finally, the generated control signal, is applied to control the phase-leg a of the VSI, generating a current without oscillations.…”

Section: Proposed Control Systemmentioning

confidence: 99%

“…This fact leads to a version of the PCC voltage free of noise and distortion even in the case of a distorted grid. Besides, the proposed model is independent of the grid inductance [14], [16]. According to the aforementioned conditions, the proposed reduced model can be represented as follows:…”

Section: A Reduced State-space Model Of the Convertermentioning

confidence: 99%

“…As a comparison with other previous SMC methods [12], [14], [15], the use of a reduced model allows to stabilize the system. The main advantage is that the computational time used by the algorithm is clearly reduced and as a consequence the maximum switching frequency can be increased.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Variable Structure Control for Three-Phase LCL-Filtered Inverters Using a Reduced Converter Model

Guzmán

Vicuña

Castilla

et al. 2018

IEEE Trans. Ind. Electron.

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Abstract-This paper presents a new concept in active damping techniques using a reduced model of a LCLfiltered grid connected inverter. The presence of the LCL filter complicates the design of the inverter control scheme, particularly when uncertainties in the system parameters, especially in the grid inductance, are considered. The proposed control algorithm is addressed to overcome such difficulties using a reduced model of the inverter in a state observer. In this proposal, two of the three state variables of the system are obviated from the physical inverter model and only the inverter side current is considered. Therefore, the inverter side current can be estimated emulating the case of an inverter with only one inductor, thus eliminating the resonance problem produced by the LCL filter. Besides, in the case of a distorted grid, the method allows to estimate the voltages at the point of common coupling free of noise and distortion without using any PLL-based synchronization algorithm. This proposal provides the following features to the closed-loop system: 1) robust and simple active damping control under system parameters deviation, 2) robustness against grid voltage unbalance and distortion, and 3) an important reduction in the computational load of the control algorithm which allows to increase the switching frequency. To complete the control scheme, a theoretical stability analysis is developed considering the effect of the observer, the system discretization and the system parameters deviation. Experimental and comparative evaluation results are presented to validate the effectiveness of the proposed control scheme.

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Section: Proposed Control Systemmentioning

confidence: 99%

Section: A Reduced State-space Model Of the Convertermentioning

confidence: 99%

See 1 more Smart Citation

Variable Structure Control for Three-Phase LCL-Filtered Inverters Using a Reduced Converter Model

Guzmán

Vicuña

Castilla

et al. 2018

IEEE Trans. Ind. Electron.

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“…The rectifier control scheme has been widely studied by scholars in grid-connected operating conditions [5]- [11]. However, few studies have been carried out in the synchronous generator-connected mode.…”

Section: Introductionmentioning

confidence: 99%

“…However, few studies have been carried out in the synchronous generator-connected mode. From the existing related literature, several practical control strategies have been proposed for grid-rectifiers, such as voltage-oriented vector control based on a decoupled proportional-integral (PI) regulator [5], direct power control with a fixed switching frequency [6], [7], model predictive control [7], [8], repetitive control [9], fuzzy control [10] and sliding-mode control [11]. These control strategies have been successfully applied to grid-connected rectifier control with improved performance.…”

Section: Introductionmentioning

confidence: 99%

A Novel Control Scheme for T-Type Three-Level SSG Converters Using Adaptive PR Controller with a Variable Frequency Resonant PLL

Lin

Huang²,

Wan

2016

Journal of Power Electronics

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In this paper, a novel quasi-direct power control (Q-DPC) scheme based on a resonant frequency adaptive proportional-resonant (PR) current controller with a variable frequency resonant phase locked loop (RPLL) is proposed, which can achieve a fast power response with a unity power factor. It can also adapt to variations of the generator frequency in T-type Three-level shaft synchronous generator (SSG) converters. The PR controller under the static α-β frame is designed to track ac signals and to avert the strong cross coupling under the rotating d-q frame. The fundamental frequency can be precisely acquired by a RPLL from the generator terminal voltage which is distorted by harmonics. Thus, the resonant frequency of the PR controller can be confirmed exactly with optimized performance. Based on an instantaneous power balance, the load power feed-forward is added to the power command to improve the anti-disturbance performance of the dc-link. Simulations based on MATLAB/Simulink and experimental results obtained from a 75kW prototype validate the correctness and effectiveness of the proposed control scheme.

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Harmonic distortion reduction of commercial airplane electrical power system using fuzzy logic based current control of active power filter

Radmanesh

Gharehpetian

2021

Int Trans Electr Energ Syst

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Summary In this study, a novel method is proposed for current control (CC) of an active power filter (APF) of the aircraft power system, which is based on a fuzzy inference system (FIS). The control system is designed according to the instantaneous power theory. Two other conventional CC methods consisting of the hysteresis current control method (HCCM) and adaptive hysteresis current control method (AHCCM) are utilized in the study and their results are compared with the proposed fuzzy current control method (PFCCM). It is shown that the proposed method is more successful in eliminating harmonics without drawbacks of conventional methods such as high and variable switching frequency which hardens system design and utilization. The study is carried out in MATLAB\Simulink environment to prove the applicability of the proposed method.

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

Cited by 77 publications

References 35 publications

Variable Structure Control for Three-Phase LCL-Filtered Inverters Using a Reduced Converter Model

Variable Structure Control for Three-Phase LCL-Filtered Inverters Using a Reduced Converter Model

A Novel Control Scheme for T-Type Three-Level SSG Converters Using Adaptive PR Controller with a Variable Frequency Resonant PLL

Harmonic distortion reduction of commercial airplane electrical power system using fuzzy logic based current control of active power filter

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