Synchronous double reference frame PLL applied to a unified power quality conditioner

Rodríguez, Pedro; Sainz, L.; Bergas, J.

doi:10.1109/ichqp.2002.1221506

Cited by 41 publications

(29 citation statements)

References 5 publications

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“…The Adaptive Notch Filter (ANF) in [14] and the Double Synchronous Reference Frame PLL (DSRF-PLL) in [10], [11]. The comparison is made through simulation results of the techniques under the same type of disturbance.…”

Section: Comparison With Other Methodsmentioning

confidence: 99%

“…To analyze the performance under a voltage unbalance, the FB-PLL is compared to the DSRF-PLL, a method introduced in [10] that proposes a double synchronous reference frame for three-phase unbalanced systems with negative and positive sequences. The basic idea of this method is to synchronize the three-phase unbalanced signals using one reference frame for the positive sequence and another frame for the negative, along with subtracting the mutual disturbance between each frame.…”

Section: Comparison With Other Methodsmentioning

confidence: 99%

See 1 more Smart Citation

Fourier-Based PLL Applied for Selective Harmonic Estimation in Electric Power Systems

Santos¹,

Ferreira²,

Silva³

et al. 2013

Journal of Power Electronics

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In this paper, the Fourier-based PLL (Phase-locked Loop) is introduced with a new structure, capable of selective harmonic detection in single and three-phase systems. The application of the FB-PLL to harmonic detection is discussed and a new model applicable to three-phase systems is introduced. An analysis of the convergence of the FB-PLL based on a linear model is presented. Simulation and experimental results are included for performance analysis and to support the theoretical development. The decomposition of an input signal in its harmonic components using the Fourier theory is based on previous knowledge of the signal fundamental frequency, which cannot be easily implemented with input signals with varying frequencies or subjected to phase-angle jumps. In this scenario, the main contribution of this paper is the association of a phase-locked loop system, with a harmonic decomposition and reconstruction method, based on the well-established Fourier theory, to allow for the tracking of the fundamental component and desired harmonics from distorted input signals with a varying frequency, amplitude and phase-angle. The application of the proposed technique in three-phase systems is supported by results obtained under unbalanced and voltage sag conditions.

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Section: Comparison With Other Methodsmentioning

confidence: 99%

Section: Comparison With Other Methodsmentioning

confidence: 99%

Fourier-Based PLL Applied for Selective Harmonic Estimation in Electric Power Systems

Santos¹,

Ferreira²,

Silva³

et al. 2013

Journal of Power Electronics

View full text Add to dashboard Cite

show abstract

“…Double arm straight will increase switching losses but ensure the steady DC voltage, so this text takes the latter one as the subject [8,9]. Fig.…”

Section: Working Principlementioning

confidence: 99%

“…It is a kind of practical and applicable inverter which not only realizes the function of voltage adjusting, but also overcomes the deadband time by introducing shoot-through state, so that it can make two bridge legs of the same switch tube turn on together instead of destroying the switch tube. Most traditional power electronic converters use PI regulating error technique [3,4], which is not dependent on mathematical models but establish mathematical models with nonlinear systems which consist of fixed parameters and structure. Then, it will make small-signal linear perturbation approximation in steady operating points that will turn the original nonlinear system into a linear model.…”

Section: Introductionmentioning

confidence: 99%

Research on Shoot-Through Zero Vector of Impedance Source Linearization Control Strategy

Xu¹,

Li²,

Sun³

2015

TOEEJ

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Z-source inverter takes advantage of a distinctive impedance source network and modulation method of shootthrough vector, and achieves the function of buck/boost DC -AC inverter in the single stage system at the same time, which is suitable for grid-connected PV systems with large input voltage variations. The purpose of this study is to draw a unified method of shoot-through vector and grid inverter of the z-source inverter, apply the method of state-space averaging for the modeling analysis of the z-source inverter and give a complete mathematical model. Based on which and according to the nonlinear control theory and making use of the linearization of affine nonlinear model of the z-source inverter, we can get the specific derivation of equation. The results of the simulation and experiment show that according to the linearization of the shoot-through vector with affine nonlinear model for the z-source, we can make the system have the characteristics of fast and accurate tracking, small overshoot, small DC voltage, AC current ripple and small THD, and it has a certain practical value.

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“…2) is broadly discussed in [11] and [12]. In short, this algorithm enhances the dynamical response of a classical SRF PLL system, reinforcing its performance under unbalanced, and polluted conditions.…”

Section: A-double Synchronous Reference Frame Pll ( Dsrf Pll)mentioning

confidence: 99%

Grid synchronization for advanced power processing and FACTS in wind power systems

Luna

Rocabert

Vázquez

et al. 2010

2010 IEEE International Symposium on Industrial Electronics

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-The high penetration of wind power systems in the electrical network has introduced new issues in the stability and transient operation of the grid. By means of providing advanced functionalities to the existing power converters of such power plants it is possible to enhance their performance and also to support the grid operation, as the new grid codes demand. The connection of FACTS based on power converters, such as STATCOMs, are also contributing to the integration of renewable energies improving their behavior under contingencies. However, in both cases it is needed to have a grid voltage synchronization system, able to work under unbalanced and distorted conditions. This paper presents the discrete representation and performance of three PLL's structures, designed to work in that kind of situations. Their synchronization capability will be tested in different scenarios and their performance constraints will be established according to the Grid Code Requirements (GCRs)

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Synchronous double reference frame PLL applied to a unified power quality conditioner

Cited by 41 publications

References 5 publications

Fourier-Based PLL Applied for Selective Harmonic Estimation in Electric Power Systems

Fourier-Based PLL Applied for Selective Harmonic Estimation in Electric Power Systems

Research on Shoot-Through Zero Vector of Impedance Source Linearization Control Strategy

Grid synchronization for advanced power processing and FACTS in wind power systems

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