Design of voltage Sag and Harmonic detection algorithm for distribution network dynamic voltage restorer

Author(s):  
S. Teng ◽  
X. Shen ◽  
J. Hua ◽  
B. Jinhua ◽  
Y. Guan
2014 ◽  
Vol 615 ◽  
pp. 290-297
Author(s):  
Hua Ying Zhang ◽  
Sen Jing Yao ◽  
Zheng Guo Zhu ◽  
Jun Wei Cao ◽  
Yang Liu

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.


Author(s):  
Awais Farooqi ◽  
Muhammad Murtadha Othman ◽  
Ahmad Farid Abidin ◽  
Shahril Irwan Sulaiman ◽  
Mohd Amran Mohd Radzi

<p>Dynamic voltage restorer (DVR) is a series active filter device that is used to protect sensitive loads from power quality issues such as voltage sag, swell, harmonics or disturbances. This implies that the DVR is capable to mitigate power quality disturbances at load terminal. Harmonic is a major power quality problem polluting distribution network causing the end-user equipment to fail operating due to the occurrence of disturbances in voltage, current or frequency. This paper discusses on the DVR used as the proposed technique to mitigate the voltage sag and swell in a distribution network connected with energy storage system and mini-hydro turbine system.</p>


2015 ◽  
Vol 2 (4) ◽  
pp. 1-6
Author(s):  
K. Venkateswarlu ◽  
◽  
B. Ashwin Kumar ◽  
N. Srinivas ◽  
V. Mallikarjuna Rao ◽  
...  

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