Decoupled $dq$-Current Control of Grid-Tied Voltage Source Converters Using Nonparametric Models

Bahrani, Behrooz; Karimi, Alireza; Rey, Beatriz Comendador; Rufer, A.

doi:10.1109/tie.2012.2185017

Cited by 90 publications

(32 citation statements)

References 26 publications

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“…However, as will be shown in the next section, the peculiarity in the dq case is that each component is represented by a 2×2 matrix. This is shown in (9) where Y c is the component admittance matrix.…”

Section: Hrma In Dq Domainmentioning

confidence: 99%

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Harmonic Resonance Mode Analysis in dq Domain

Taffese¹,

Tedeschi²

2024

RE&PQJ

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Abstract-Harmonic Resonance Mode Analysis (HRMA) is a technique developed to study harmonic resonance in a power system. Compared to conventional resonance analysis techniques, HRMA is a powerful method that can indicate the origin and the locations most affected by a given mode of resonance. The method has been shown to be effective for large scale resonance studies. However, very simplified models are used for representing power converters. With the proliferation of power converter interfaced energy sources in the future power system, there is a need to correctly model power converters in such studies. The main challenge is to correctly represent the control loops. The controllers are mostly designed in dq domain while the study is performed in phase domain. To address this problem, this paper proposes extension of HRMA to dq domain. Formulation of the problem in dq domain is presented in detail followed by verification using simple test cases. A detailed model of a voltage source converter for the aforementioned analysis is also developed and analysed using the test cases.

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Section: Hrma In Dq Domainmentioning

confidence: 99%

“…The main challenge is the representation of the control loops. The controller are usually in dq domain [9] while HRMA is formulated in phase domain. Existing works [7] adopted Proportional Resonant (PR) controllers because they are easier to represent in phase domain.…”

Section: Introductionmentioning

confidence: 99%

Harmonic Resonance Mode Analysis in dq Domain

Taffese¹,

Tedeschi²

2024

RE&PQJ

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“…for active and reactive current part (∆i dw and ∆i qw ). The mathematical model of LCL filter is based on two basic equations (5) and (6). By subsequent modifications and transformation into d, q "virtual" revolving system are obtained the final equations (7) and (8).…”

Section: Converter Control Strategymentioning

confidence: 99%

“…Hysteresis control and delta modulation controls are robust and simple, but its variable switching frequency expects special adaptation likes [5]. Widely used control technique is vector control based on simple PI controllers [6] and [7], but these methods show a very slow dynamic behaviour for single-phase system. Very promising control techniques are based on predictive controllers [8] and [9], this kind of controllers is high sensitive to the system model accuracy.…”

Section: Introductionmentioning

confidence: 99%

Current Source Based on H-Bridge Inverter with Output LCL Filter

Blahník

Talla²,

Peroutka

2015

Journal of Electrical Engineering

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The paper deals with a control of current source with an LCL output filter. The controlled current source is realized as a single-phase inverter and output LCL filter provides low ripple of output current. However, systems incorporating LCL filters require more complex control strategies and there are several interesting approaches to the control of this type of converter. This paper presents the inverter control algorithm, which combines model based control with a direct current control based on resonant controllers and single-phase vector control. The primary goal is to reduce the current ripple and distortion under required limits and provides fast and precise control of output current. The proposed control technique is verified by measurements on the laboratory model.

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“…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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Decoupled $dq$-Current Control of Grid-Tied Voltage Source Converters Using Nonparametric Models

Cited by 90 publications

References 26 publications

Harmonic Resonance Mode Analysis in dq Domain

Harmonic Resonance Mode Analysis in dq Domain

Current Source Based on H-Bridge Inverter with Output LCL Filter

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

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