Grid synchronization and symmetrical components extraction with PLL algorithm for grid connected power electronic converters - a review

Bobrowska-Rafał, M.; Rafał, K.; Jasiński, Marek; Kaźmierkowski, Marian P.

doi:10.2478/v10175-011-0060-8

Cited by 54 publications

(47 citation statements)

References 33 publications

(39 reference statements)

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“…Energies 2017, 10, 1528 7 of 17 with: (25) where m and n represent the oscillating amplitude coefficient (OAC) of active and reactive power ripples. The advantage of this power compensation method is that the use of NS current components is not required as they are often very small and large errors may be produced, when compared with using of the PS current components.…”

Section: Power Reference Derivationmentioning

confidence: 99%

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Integral Plus Resonant Sliding Mode Direct Power Control for VSC-HVDC Systems under Unbalanced Grid Voltage Conditions

Yang

Zhang

et al. 2017

Energies

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An integral plus resonant sliding mode direct power control (IRSMC DPC) strategy for voltage source converter high voltage direct current (VSC-HVDC) systems under unbalanced grid voltage conditions is proposed in this paper. Through detailed instantaneous power flow analysis, a generalized power compensation method, by which the ratio between the amplitude of active and reactive power ripples can be controlled continuously, is obtained. This enables the system to provide flexible power control, so that the desired performance of the system on both the ac and dc sides can be attained under different operating conditions. When the grid voltage is unbalanced, one or both of the active and reactive power terms contain ripples, oscillating at twice the grid frequency, to obtain non-distorted ac current. A power controller consisting of the proportional, integral and resonant control laws is designed using the sliding mode control approach, to achieve accurate power control objective. Simulation studies on a two-terminal VSC-HVDC system using MATLAB/SIMULINK (R2013b, Mathworks, Natick, MA, USA) are conducted to verify the effectiveness of the IRSMC DPC strategy. The results show that this strategy ensures satisfactory performance of the system over a wide range of operating conditions.

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Section: Power Reference Derivationmentioning

confidence: 99%

“…To obtain the instantaneous power outputs and compensations, the PS and NS components of system voltage and current are required. The equations used for sequence component extraction are [24,25]: …”

Section: Structure Of the Irsmc Dpc Strategymentioning

confidence: 99%

Integral Plus Resonant Sliding Mode Direct Power Control for VSC-HVDC Systems under Unbalanced Grid Voltage Conditions

Yang

Zhang

et al. 2017

Energies

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“…For the 3-φ VSI-based distributed generation system, the commonly investigated and implemented GS methods [4], [8], [28] can be broadly classified as given in Table I. The methods presented in Table I, are suitable to be used to control one MS with VSI to achieve the grid synchronization.…”

Section: Review Of Grid Synchronization Techniquesmentioning

confidence: 99%

Controller Area Network Assisted Grid Synchronization of a Microgrid With Renewable Energy Sources and Storage

Thale

Agarwal

2016

IEEE Trans. Smart Grid

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Microgrids are emerging as an important constituent of large-scale smart grids. They are equipped with the controls necessary for managing the operation in islanded or grid connected mode and serve the loads with clean, reliable, and uninterruptible power. Microgrid must be equipped with a robust grid synchronization (GS) algorithm so as to allow a smooth transfer from islanded mode to grid tied mode. This gets even more critical when the availability of the power grid is irregular or the power grid is weak. This paper proposes a simple yet highly reliable GS technique based on controller area network (CAN) communication. The grid synchronizer block senses the three phase grid voltages, derives the phase angle (θ) using synchronously rotating reference frame-based phase lock loop, and transmits this information on the CAN network to all microsources (MS). The local controller associated with each MS receives the data with small but known and definite time latencies. This allows each MS to energize simultaneously in synchronization with the grid, facilitating easy GS of all the MS, minimizing the time required for GS of the complete microgrid. All the analytical, simulation, and hardware results related to this paper are presented.Index Terms-Black-start, controller area network (CAN), grid synchronization (GS), island mode, microgrid, smart grid. 1949-3053

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“…However, in a usual distorted voltage condition, the frequency detection by this method can lead to significant errors [6]. Therefore, for practical applications, a frequency estimator based on zero crossing is unsuitable.…”

Section: A New Approach To the Adaptive Gdsc-pllmentioning

confidence: 99%

Frequency adaptivity improvement in GDSC-PLL

Batista

Souza

Neves

2015

2015 IEEE 24th International Symposium on Industrial Electronics (ISIE)

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This paper shows a scheme for improving the detection performance of the Fundamental-Frequency Positive-Sequence (FFPS) space vector through the Generalized Delayed Signal Cancellation Phase-Locked Loop (GDSC-PLL). The performance was improved by a new scheme that reduces the phase-angle error in the frequency adaptive scheme during grid frequency variations. In the new scheme we replaced the SRF-PLL used for the frequency adaptation scheme by simple samples counters. Further, we made improvements in the circuitry that performs the frequency estimation filtering. The performances of the traditional GDSC-PLL and other usual detection schemes were compared with the proposed one through transient test cases based on IEC 61000 and typical electrical events. The new approach led to a reduction of up to 79% in the phase-angle convergence time right after disturbances and a reduction of up to 65% in the mean absolute error during frequency variation.

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Grid synchronization and symmetrical components extraction with PLL algorithm for grid connected power electronic converters - a review

Cited by 54 publications

References 33 publications

Integral Plus Resonant Sliding Mode Direct Power Control for VSC-HVDC Systems under Unbalanced Grid Voltage Conditions

Integral Plus Resonant Sliding Mode Direct Power Control for VSC-HVDC Systems under Unbalanced Grid Voltage Conditions

Controller Area Network Assisted Grid Synchronization of a Microgrid With Renewable Energy Sources and Storage

Frequency adaptivity improvement in GDSC-PLL

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