Single-Phase PLLs: A Review of Recent Advances

Golestan, Saeed; Guerrero, Josep M.; Vasquez, Juan C.

doi:10.1109/tpel.2017.2653861

Cited by 312 publications

(143 citation statements)

References 67 publications

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“…MAF-PLL eliminates the effect of imbalanced voltage, DC offset, and harmonics. 18,19 It has simple design, less complexity, and low computation burden. Figure 2 shows the complete diagram for MAF-PLL-based control algorithm.…”

Section: Control Algorithm Based On Maf-pllmentioning

confidence: 99%

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Phase lock loop–based algorithms for DSTATCOM to mitigate load created power quality problems

Arya

Patel

Alam

et al. 2019

Int Trans Electr Energ Syst

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Summary This paper describes about implementation of phase‐locked loop (PLL)–based control algorithms for distribution static compensator (DSTATCOM) used to mitigate power quality issues due to unbalanced and non‐linear load. Three control algorithms based on moving average filter PLL (MAF‐PLL), double second order generalized integrator PLL (DSOGI‐PLL), and adaptive filter with frequency estimation loop PLL (AFFEL‐PLL) are used in this paper. These are more suitable to mitigate the power quality problems created by non‐linear and unbalanced loads in distribution system. The reason behind selection in this application is explained as follows. The MAF‐PLL has great filtering quality with less computational burden on processor which is verified using total harmonic distortion (THD) performance. AFFEL‐PLL has variable integral gain that prevents large phase jump during frequency drift and load transient condition, this gives fast response. DSOGI‐PLL uses both orthogonal components and prevents oscillatory error and gives more stable operation. The MAF‐PLL and AFFEL‐PLL uses only quadrature axis “q” component for reduction of phase error and detection of theta. To mitigate power quality issues, continuous monitoring of AC grid system is required, which provide information in terms of frequency, phase, and fundamental voltage magnitude. Out of all, the phase detecting methods using PLL is standard method to extract such information. All the PLLs mentioned here extract the required grid information. Further, DSOGI‐PLL converts the distorted three‐phase load current into respective orthogonal components. All the control algorithms mentioned are implemented using MATLAB and performance of most effect algorithm is recorded in laboratory environments.

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Section: Control Algorithm Based On Maf-pllmentioning

confidence: 99%

“…Figure 4 shows the control algorithm based on the AFFEL-PLL. 18,19 In this control algorithm, phase angle is extracted using AFFEL-PLL which is shown in Figure 4. Frequency and phase are related with each other by relations, as a result, variation in frequency will affect the phase angle of voltage or current.…”

Section: Control Algorithm Based On Dsogi-pllmentioning

confidence: 99%

Phase lock loop–based algorithms for DSTATCOM to mitigate load created power quality problems

Arya

Patel

Alam

et al. 2019

Int Trans Electr Energ Syst

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“…25,32 One of the solutions to the problem of high harmonic distortions in single supply systems is to use second-order generalized integrators (SOGIs) coupled with a PLL. The added noise stems from the voltage-current characteristic of the electric arc, which is nonlinear and chaotic and therefore infringes additional harmonic distortion.…”

Section: Proposed Detection Techniquementioning

confidence: 99%

Series arc fault detection in photovoltaic system by small‐signal impedance and noise monitoring

Georgijević

Stojić

Radaković

2019

Int Trans Electr Energ Syst

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Summary This paper presents a new method for the fast detection of series electrical arc (SEA) fault in a photovoltaic (PV) system, which relies on a power converter output switching waveforms as the excitation signal used to identify PV small‐signal impedance at switching frequency. In addition to the small‐signal impedance value, the proposed method extracts the high frequency noise power value caused by SEA from the PV current and uses it to indicate the presence of SEA. Both theoretical analysis and measurements performed on a commercial PV system show that SEA causes a step‐like increase in small‐signal reactance. SEA was detected in less than 10 ms during tests of the proposed algorithm. Moreover, various tests showed that there was no false tripping during transients in normal operation. Finally, the proposed algorithm was implemented and tested with a commercially available digital signal processor.

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“…Details related to the various modulation techniques used like the Phase-Shifted, Level-Shifted, Space Vector PWM, and Selective harmonic elimination have been discussed in Rodriguez et al 19 Various topologies of multilevel converters and their specific applications and drawbacks have been presented in Leon et al 20 Reviewing the work reported, it can be concluded that the 3-level NPC stands to be a popular configuration owing to its lesser number of devices and capacitors that aids in attaining capacitor voltage balancing which is otherwise difficult in its higher level counterparts. 31 The various PLL structures proposed for single-phase and 3-phase systems and the filtering action of MAF and other filters are broadly discussed in Golestan et al 32,33 and therefore not included in the paper for brevity. The most critical component in a PV system is the power electronic interface and the stresses on its components determine its longevity which in turn is dependent on the working conditions, switch stress, etc.…”

Section: Introductionmentioning

confidence: 99%

FPGA‐based implementation for improved control scheme of grid‐connected PV system with 3‐phase 3‐level NPC‐VSI

Jena

Panda

Peesapati

2018

Circuit Theory & Apps

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The large scale penetration of renewable energy resources has boosted the need of using improved control technique and modular power electronic converter structures for efficient and reliable operation of grid-connected systems.This study investigates the performance of a grid-connected 3-phase 3-level neutral-point clamped voltage source inverter for renewable energy integration by using improved current control technique. For medium or high-voltage grid interfacing, the multilevel inverter structure is generally used to reduce the voltage stress across the switching device as well as the harmonic distortion.The neutral-point clamped voltage source inverter is controlled by using decoupling technique along with the proper grid synchronization via moving average filter-based phase-locked loop. The moving average filter-based phase-locked loop is used to reduce the delay in grid angle estimation under balanced as well as distorted grid conditions. A Lyapunov-based approach for analysing the stability of the system has also been discussed. In this study, the hardware-in-loop (HIL) simulation of the control algorithm and the grid synchronization technique is realized using Virtex-6 FPGA ML605 evaluation kit. The performance of the system is analyzed by conducting a time-domain simulation in the Matlab/Simulink platform and its performance is examined in the HIL environment.The simulation and the hardware cosimulation results are presented to validate the effectiveness of the proposed control scheme. KEYWORDS field programmable gate array (FPGA), moving average filter (MAF), photovoltaic (PV), phase-locked loop (PLL), two-degree-of-freedom (2DoF) 942

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Single-Phase PLLs: A Review of Recent Advances

Cited by 312 publications

References 67 publications

Phase lock loop–based algorithms for DSTATCOM to mitigate load created power quality problems

Phase lock loop–based algorithms for DSTATCOM to mitigate load created power quality problems

Series arc fault detection in photovoltaic system by small‐signal impedance and noise monitoring

FPGA‐based implementation for improved control scheme of grid‐connected PV system with 3‐phase 3‐level NPC‐VSI

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