A New Voltage SAG Detection Algorithm for Dynamic Voltage Restore

2011 ◽  
pp. 2429-2433
Keyword(s):  
Detection Algorithm ◽  
Voltage Sag ◽  
Voltage Sag Detection ◽  
Dynamic Voltage

scholarly journals A Robust And Fast Voltage Sag Detection Algorithm

2016 ◽  
Vol 21 (1) ◽  
pp. 24-31
Author(s):  
Francisco Lima ◽  
Joacillo Dantas ◽  
Josep Guerrero ◽  
Juan Vasquez ◽  
Carlos Branco
Keyword(s):  
Detection Algorithm ◽  
Voltage Sag ◽  
Voltage Sag Detection

scholarly journals A Fast and Accurate Method for Power System Voltage Sag Detection

2020 ◽  
Vol 16 (1) ◽  
pp. 78-84
Author(s):  
Adnan Diwan ◽  
Khalid Abdulhassan ◽  
Falih Alnahwi
Keyword(s):  
Accurate Method ◽  
Voltage Sag ◽  
Dynamic Voltage Restorer ◽  
Detection Techniques ◽  
Voltage Restorer ◽  
Detection Circuit ◽  
Different Types ◽  
Voltage Sag Detection ◽  
Dynamic Voltage ◽  
Speed And Accuracy

In order to mitigate the effect of voltage sag on sensitive loads, a dynamic voltage restorer (DVR) should be used for this purpose. The DVR should be accompanied with a fast and accurate sag detection circuit or algorithm to determine the sag information as quickly as possible with an acceptable precision. This paper presents the numerical matrix method as a distinctive candidate for voltage sag detection. The design steps of this method are demonstrated in detail in this work. The simulation results exhibit the superiority of this technique over the other detection techniques in term of the speed and accuracy of detection, simplicity in implementation, and the memory size. The results also accentuate the recognition capability of the proposed method in distinguishing different types of voltage sag by testing three different voltage sag scenarios.

Study on the Feeder Selection Method for 10kV Regional Compensation Type Dynamic Voltage Restorer

2014 ◽  
Vol 615 ◽  
pp. 290-297
Author(s):  
Hua Ying Zhang ◽  
Sen Jing Yao ◽  
Zheng Guo Zhu ◽  
Jun Wei Cao ◽  
Yang Liu
Keyword(s):  
Compensation Effect ◽  
Detection Algorithm ◽  
Selection Method ◽  
Modulation Method ◽  
Voltage Sag ◽  
Pulse Modulation ◽  
Dynamic Voltage Restorer ◽  
Voltage Restorer ◽  
Dynamic Voltage ◽  
Load Types

This paper proposes the designing of regional compensation type Dynamic Voltage Restorer (DVR), and the topology of main circuit, the detection algorithm for voltage sag, the calculation method of reference voltage and pulse modulation method. Based on the different load types of the target substation and the sensitivity to voltage sags, the selection principle of the location of compensation line for regional compensation DVR is proposed, and the realization of substation feeder selection method is illustrated by taking a substation as an example. The compensation effect of the DVR under different fault types are simulated, and the validity and rationality of the designing are verified.

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