Implementation of Fault Ride-Through Techniques of Grid-Connected Inverter for Distributed Energy Resources With Adaptive Low-Pass Notch PLL

Shin, Dong Yeok; Lee, Kyoung-Jun; Lee, Jong-Pil; Yoo, Dong-Wook; Kim, Hee-Je

doi:10.1109/tpel.2014.2378792

Cited by 91 publications

(56 citation statements)

References 48 publications

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“…Both the mathematical analysis and the PLL based synchronization are able to provide accurate and fast information for the control in the case of a normal grid condition [8], [14], [18]. However, the grid voltage cannot always be maintained as "constant" in terms of amplitude, frequency, and phase, due to multiple eventualities like continuous connection and disconnection of loads and fault to ground [22], [23]. Together with the harmonics in the grid voltage (e.g., due to non-linear loads), a big obstacle for synchronization, especially for the Fourier based method [16], [24], has been imposed on.…”

Section: Introductionmentioning

confidence: 99%

Benchmarking of phase locked loop based synchronization techniques for grid-connected inverter systems

Yang

Hadjidemetriou

Blaabjerg

et al. 2015

2015 9th International Conference on Power Electronics and ECCE Asia (ICPE-ECCE Asia)

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Grid-connected renewables are increasingly developed in recent years, e.g. wind turbine systems and photovoltaic systems. Synchronization of the injected current with the grid is mandatory. However, grid disturbances like voltage sags, harmonics, and frequency deviations may occur during operation, becoming inevitable challenges to the synchronization of the grid-connected renewable energy systems. In order to ensure the quality of the power generation from the renewables, robust and reliable synchronization methods are in demand. Among the prior-art solutions, Phase Locked Loop (PLL) based synchronization methods have gained much popularity in grid-connected applications. However, an appropriate selection and thus a proper design of the selected PLL synchronization remain of interest in practice, especially for single-phase systems. Therefore, in this paper, a benchmarking of the main PLL synchronization methods for single-phase grid-connected inverter systems in terms of accuracy, dynamic response, harmonic immunity, etc., has been conducted. Experiments on a 1-kW single-phase gridconnected system, suffering from different grid disturbances, are performed for the benchmarking. The experimental results have verified the discussions.Index Terms-Phase locked loop (PLL), synchronization, T/4 delay PLL, inverse park transform PLL, enhanced PLL (EPLL), second order generalized integrator PLL (SOGI-PLL), multi-harmonic decoupling cell PLL.

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Section: Introductionmentioning

confidence: 99%

Benchmarking of phase locked loop based synchronization techniques for grid-connected inverter systems

Yang

Hadjidemetriou

Blaabjerg

et al. 2015

2015 9th International Conference on Power Electronics and ECCE Asia (ICPE-ECCE Asia)

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“…2. This is characterized by a simple structure, easy implementation, strong adaptability and the shortest response time [24], [25]. Therefore, the open-loop phase synchronization scheme is selected to verify the validity of this study.…”

Section: A Phase Synchronization Schemementioning

confidence: 99%

“…where: Therefore, the open-loop phase synchronization scheme in the d-q frame [24], [25] is obtained, as shown in Fig. 2.…”

Section: A Phase Synchronization Schemementioning

confidence: 99%

“…According to (25), the n th harmonic can be eliminated when the delay length of the DSCn block is (2Z n −1)L n /2. Consequently, the response time of the DSCn is extended to (2Z n −1)T n /2.…”

Section: B Proposed Edsc Algorithmsmentioning

confidence: 99%

“…According to the conclusions of (25), the delay length of the EDSC L EDSC and the response time T EDSC can be calculated as:…”

Section: B Proposed Edsc Algorithmsmentioning

confidence: 99%

See 2 more Smart Citations

A Quantitative Evaluation and Comparison of Harmonic Elimination Algorithms Based on Moving Average Filter and Delayed Signal Cancellation in Phase Synchronization Applications

Xiong¹,

Zhuo²,

Wang³

et al. 2016

Journal of Power Electronics

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The harmonic components of grid voltage result in oscillations of the calculated phase obtained via phase synchronization. This affects the security and stability of grid-connected converters. Moving average filter, delayed signal cancellation and their related harmonic elimination algorithms are major methods for such issues. However, all of the existing methods have their limitations in dealing with multiple harmonics issues. Furthermore, few studies have focused on a comparison and evaluation of these algorithms to achieve optimal algorithm selections in specific applications. In this paper, these algorithms are quantitatively analyzed based on the derived mathematical models. Moreover, an enhanced moving average filter and enhanced delayed signal cancellation algorithms, which are applicable for eliminating a group of selective harmonics with only one calculation block, are proposed. On this basis, both a comprehensive comparison and a quantitative evaluation of all of the aforementioned algorithms are made from several aspects, including response speed, required data storage size, sensitivity to sampling frequency, and elimination of random noise and harmonics. With the conclusions derived in this paper, better overall performance in terms of harmonic elimination can be achieved. In addition, experimental results under different conditions demonstrate the validity of this study.

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A review of fault ride through of PV and wind renewable energies in grid codes

Hagh

Khalili

2018

Int J Energy Res

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Summary This paper presents a comprehensive review of fault ride through (FRT) in the grid code of 38 selected countries with an emphasis on renewable energy (REN) sources–related rules. Grid codes are the rules legislated usually by the transmission system operators (TSOs) to determine the grid integration requirements of electrical power generators. Each country establishes its grid code for satisfying the minimum required technical criteria and revises it frequently to cope with new modifications of the utility. Growing the penetration of REN sources have influenced many operational aspects of the power system such as protection, power quality, reliability, and stability. Thereupon, regulations must ensure the power system's secure and controllable operation of REN sources. FRT is one of the main parts of the grid code, and its characteristics affect the performance and rating of power system apparatus. FRT defines the performance of electric power generators during and in postfault conditions. FRT of solar photovoltaic (PV) and wind turbines (WTs) as the main REN sources of energy has great importance in the grid codes. In this paper, a comparison of FRTs in the grid code of 38 countries, including low‐voltage ride through (LVRT), zero‐voltage ride through (ZVRT), and high‐voltage ride through (HVRT) are provided and surveyed.

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Implementation of Fault Ride-Through Techniques of Grid-Connected Inverter for Distributed Energy Resources With Adaptive Low-Pass Notch PLL

Cited by 91 publications

References 48 publications

Benchmarking of phase locked loop based synchronization techniques for grid-connected inverter systems

Benchmarking of phase locked loop based synchronization techniques for grid-connected inverter systems

A Quantitative Evaluation and Comparison of Harmonic Elimination Algorithms Based on Moving Average Filter and Delayed Signal Cancellation in Phase Synchronization Applications

A review of fault ride through of PV and wind renewable energies in grid codes

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