Novel disturbance and observation based active islanding detection for three-phase grid-connected inverters

Kaewthai, S.; Ekkaravarodome, Chainarin; Jirasereeamornkul, Kamon

doi:10.1007/s43236-020-00195-4

Cited by 3 publications

(4 citation statements)

References 18 publications

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“…The idea of inserting an intentional disturbance into the GCPVS and observing its effects on the system variables (in either voltage or frequency) has been reported by some researchers [56,57]. For instance, Sivadas and Vasudevan slightly modified the P DG around the rated point of operation and measured the daxis equivalent resistance at PCC [56].…”

Section: Other Active Algorithmsmentioning

confidence: 99%

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Review on islanding detection methods for grid‐connected photovoltaic systems, existing limitations and future insights

Bakhshi‐Jafarabadi

Sadeh

Serrano‐Fontova

et al. 2022

IET Renewable Power Gen

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The connection of renewable energy sources (RESs) to the distribution network has been rising at a steady pace over the past decades. The great penetration of RESs such as grid-connected photovoltaic system brings new technical challenges to the distribution networks such as unintentional islanding. Conceptually, this situation occurs when a portion of the network that has been isolated from the main grid remains energised by the embedded RESs. This unexpected scenario should be thereby identified effectively to avoid frequency and voltage deviations and their hazardous effects. The aim of this paper is to provide a comprehensive review on the recently developed islanding detection methods for grid-following/grid-connected photovoltaic system, analyse their existing limitations, and suggest possible future research implementations. In this context, an in-depth comparison is provided considering the main features used in islanding detection methods such as non-detection zone, detection time, implementation cost and complexity, and power quality degradation. Finally, the main technical requirements established by the current grid codes are recalled identifying potential multi-functional approaches to expand the current islanding detection capabilities.

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Section: Other Active Algorithmsmentioning

confidence: 99%

“…Most active techniques have been designed to shift a local variable by injecting a periodic disturbance [44–50, 51–57]. Therefore, the GCPVS would be destabilised after islanding detection, and its restoration would be infeasible.…”

Section: Comparison Of Existing Algorithmsmentioning

confidence: 99%

Review on islanding detection methods for grid‐connected photovoltaic systems, existing limitations and future insights

Bakhshi‐Jafarabadi

Sadeh

Serrano‐Fontova

et al. 2022

IET Renewable Power Gen

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“…where, H i , R i , w i and TC i are the parameters and functions of the ith synchronous generator unit (similar to those introduced in Section 2.1). Now, if we consider the denominator term corresponding to the wind turbine equipped with a frequency control characteristic (extended OPPT-method, in this study), as in Equation (17), it can be extended to the case of N-wind turbines as:…”

Section: Effect Of the Frequency Support From Wind Turbines On The Inertial Characteristics Of The System 41 Linearization Of The Extendementioning

confidence: 99%

“…There, the measured frequency, voltage, and current are used by the proposal to successfully discriminate the islanding and non-islanding operating mode, as it is evidenced by simulation results on the IEEE 13-bus distribution system. Examples of active islanding detection methods are presented in [16,17], where an advanced method based on synchronized injection of small AC-signals and a control algorithm based on the observation and disturbance technique are proposed, respectively. Finally, ref [18] reports a communication-based islanding detection algorithm, where an intelligent micro-phasor measurement unit is leveraged for islanding detection.…”

Section: Introductionmentioning

confidence: 99%

Analytical Approach to Understanding the Effects of Implementing Fast-Frequency Response by Wind Turbines on the Short-Term Operation of Power Systems

Ochoa

Martínez

2021

Energies

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The significant presence of variable-speed wind turbines in worldwide power systems has led to planners and grid operators requiring them to participate in frequency control tasks. To address this demand, a large number of wind frequency control proposals have been reported in the literature in recent years. Many of these solutions have been tested by specific experiments carried out in computer simulation environments. This paper proposes a methodology to evaluate the effects of enabling frequency support by wind turbines on the magnitudes that characterize the inertial response of a power system by using an analytical approach. The derived formulation and the illustrations are designed to provide a better understanding of both the mechanisms that determine the frequency stability indices and the improvement achieved by enabling the inertial response of wind turbines by implementing a virtual inertia-based method on the active power controllers of these machines. To facilitate the comprehension of the results obtained, the analytical approach is complemented with time-domain simulations in a predefined test system implemented in MATLAB/Simulink®. The proposed methodology achieves a generalization of the results and can be used for the assessment of any power system configuration.

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Island detection for grid connected photovoltaic distributed generations via integrated signal processing and machine learning approach

Nsaif,

Hossain Lipu,

Hussain

et al. 2023

International Journal of Electrical Power & Energy Systems

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Novel disturbance and observation based active islanding detection for three-phase grid-connected inverters

Cited by 3 publications

References 18 publications

Review on islanding detection methods for grid‐connected photovoltaic systems, existing limitations and future insights

Review on islanding detection methods for grid‐connected photovoltaic systems, existing limitations and future insights

Analytical Approach to Understanding the Effects of Implementing Fast-Frequency Response by Wind Turbines on the Short-Term Operation of Power Systems

Island detection for grid connected photovoltaic distributed generations via integrated signal processing and machine learning approach

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