Real-time hardware-in-the-loop simulation for islanding detection schemes in hybrid distributed generation systems

2017 ◽  
Vol 11 (12) ◽  
pp. 3050-3056 ◽  
Author(s):  
Qiushi Cui ◽  
Khalil El-Arroudi ◽  
Géza Joós
Keyword(s):  
Real Time ◽  
Distributed Generation ◽  
Islanding Detection ◽  
Hardware In The Loop ◽  
Detection Schemes

Sequence Component-Based Improved Passive Islanding Detection Method for Distribution System with Distributed Generations

2019 ◽  
Vol 20 (2) ◽  
Author(s):  
Bhatraj Anudeep ◽  
Paresh Kumar Nayak
Keyword(s):  
Distributed Generation ◽  
Distribution System ◽  
Low Cost ◽  
Rate Of Change ◽  
Islanding Detection ◽  
Detection Scheme ◽  
Small Power ◽  
Distributed Generations ◽  
Sequence Components ◽  
Detection Schemes

Abstract In distributed generation (DG) systems, the rate of change of voltage and the rate of change of frequency are the two most common and widely used simple and low-cost passive islanding detection schemes. Unfortunately, these passive islanding detection schemes find limitation for detecting the islandings that cause very small power imbalance. In this paper, an improved passive islanding detection scheme is proposed by using the two newly derived indices from the sequence components of the current signal with the conventional voltage and frequency parameters. The performance of the proposed scheme is tested for numerous islanding and non-islanding cases generated on IEEE Std 399–1997 and IEC microgrid model distribution system integrated with both inverter-interfaced and synchronous DGs through PSCAD/EMTDC. The obtained results confirm the effectiveness of the proposed scheme.

scholarly journals A Research of Islanding Detection Method for Distributed Generation: Mechanism, Merits and Demerits

2019 ◽  
Vol 8 (12S2) ◽  
pp. 508-520
Keyword(s):  
Energy Source ◽  
Distributed Generation ◽  
Detection Method ◽  
Islanding Detection ◽  
Grid Structure ◽  
Distribution Grid ◽  
Distributed Energy ◽  
Detection Schemes ◽  
Ideal Method ◽  
Global Heating

Renewable energy is substantially applied at the distribution grid in order to fulfill the electricity demand as well as addressing global heating issue caused by conventional energy source. However, application of the distributed energy source raises new concern in regards of unintentional islanding activity in which prompts grid protection issues hence, endangering utility worker’s safety. These several decades feature thousands of invention and innovation of anti-islanding method developed by researchers to satisfy the demand of grid protection. Therefore, this paper conducts an overview on several islanding detection schemes with concentration on the mechanism of the method, the merits as well as the demerits of the scheme. It is concluded that there is no ideal method developed as yet, but some of these methods or integration of them are able to be applied practically to specific distributed source and grid structure.

scholarly journals A Communication Based Islanding Detection Method for Photovoltaic Distributed Generation Systems

2014 ◽  
Vol 2014 ◽  
pp. 1-17 ◽  
Author(s):  
Gökay Bayrak ◽  
Mehmet Cebeci
Keyword(s):  
Real Time ◽  
Distributed Generation ◽  
Detection Method ◽  
Islanding Detection ◽  
Pv System ◽  
Electrical Grid ◽  
Electrical Systems ◽  
Pv Systems ◽  
Working People ◽  
Nondetection Zone

PV based distributed generation (DG) systems must have some electrical connection standards while they connected to an electrical grid. One of these electrical conditions and the most important one is unplanned islanding condition. Islanding is a very dangerous condition because it could damage the PV system and related electrical systems and also working people have been at risk in islanding condition. In this application study, a new communication based islanding detection method was introduced for grid tied PV systems. A real time controller was developed with Labview for detecting islanding condition. Developed method is a hybrid method which uses the effective ways of communication based and passive methods. The results obtained from the proposed real time islanding detection method show that proposed method is reliable, robust, and independent from load and inverter. Nondetection zone (NDZ) is almost zero and islanding detection time is approximately 1-2 cycles indicated in experimental results so this time has a significant short response time according to IEEE 929-2000 standard. The proposed method is effective and presents a realistic solution to islanding so it could be implemented easily to grid tied PV systems and could be used in real system applications.

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