An efficient islanding detection method in microgrids using hybrid SVM based decision tree

2016 ◽  
Author(s):  
Gundala Srinivasa Rao ◽  
G. Kesava Rao
Keyword(s):  
Decision Tree ◽  
Detection Method ◽  
Islanding Detection

Hybrid islanding detection method based on decision tree and positive feedback for distributed generations

2015 ◽  
Vol 9 (14) ◽  
pp. 1819-1825 ◽  
Author(s):  
Bin Zhou ◽  
Chi Cao ◽  
Canbing Li ◽  
Chen Chen ◽  
Yijia Cao ◽  
...  
Keyword(s):  
Decision Tree ◽  
Positive Feedback ◽  
Detection Method ◽  
Islanding Detection ◽  
Distributed Generations

scholarly journals An Islanding Detection Method by Using Frequency Positive Feedback Based on FLL for Single-Phase Microgrid

2017 ◽  
Vol 8 (4) ◽  
pp. 1821-1830 ◽  
Author(s):  
Qinfei Sun ◽  
Josep M. Guerrero ◽  
Tianjun Jing ◽  
Juan C. Vasquez ◽  
Rengang Yang
Keyword(s):  
Positive Feedback ◽  
Single Phase ◽  
Detection Method ◽  
Islanding Detection

scholarly journals Over/Undervoltage and Undervoltage Shift of Hybrid Islanding Detection Method of Distributed Generation

2015 ◽  
Vol 2015 ◽  
pp. 1-11 ◽  
Author(s):  
Manop Yingram ◽  
Suttichai Premrudeepreechacharn
Keyword(s):  
Control System ◽  
Distributed Generation ◽  
Hybrid Method ◽  
Detection Method ◽  
System Simulation ◽  
Detection Methods ◽  
Islanding Detection ◽  
Active Method ◽  
Passive Method ◽  
Simulation Results

The mainly used local islanding detection methods may be classified as active and passive methods. Passive methods do not perturb the system but they have larger nondetection zones, whereas active methods have smaller nondetection zones but they perturb the system. In this paper, a new hybrid method is proposed to solve this problem. An over/undervoltage (passive method) has been used to initiate an undervoltage shift (active method), which changes the undervoltage shift of inverter, when the passive method cannot have a clear discrimination between islanding and other events in the system. Simulation results on MATLAB/SIMULINK show that over/undervoltage and undervoltage shifts of hybrid islanding detection method are very effective because they can determine anti-islanding condition very fast.ΔP/P>38.41% could determine anti-islanding condition within 0.04 s;ΔP/P<-24.39% could determine anti-islanding condition within 0.04 s;-24.39%≤ΔP/P≤ 38.41% could determine anti-islanding condition within 0.08 s. This method perturbed the system, only in the case of-24.39% ≤ΔP/P ≤38.41% at which the control system of inverter injected a signal of undervoltage shift as necessary to check if the occurrence condition was an islanding condition or not.

An effective passive islanding detection method for PV single-phase grid-connected inverter

Solar Energy ◽  
2013 ◽  
Vol 97 ◽  
pp. 155-167 ◽  
Author(s):  
Ku Nurul Edhura Ku Ahmad ◽  
Nasrudin Abd Rahim ◽  
Jeyraj Selvaraj ◽  
Ahmad Rivai ◽  
Krismadinata Chaniago
Keyword(s):  
Single Phase ◽  
Detection Method ◽  
Islanding Detection ◽  
Grid Connected Inverter
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