Power quality issues produced by embedded storage technologies in smart grid environment

2015 ◽  
Author(s):  
Ramona Vatu ◽  
Oana Ceaki ◽  
Monica Mancasi ◽  
Radu Porumb ◽  
George Seritan
Keyword(s):  
Smart Grid ◽  
Power Quality ◽  
Grid Environment ◽  
Quality Issues ◽  
Storage Technologies

Smart grid and power quality issues

2018 ◽  
pp. 195-202 ◽  
Author(s):  
Amalorpavaraj Rini Ann Jerin ◽  
Natarajan Prabaharan ◽  
Nallapaneni Manoj Kumar ◽  
Kaliannan Palanisamy ◽  
Subramaniam Umashankar ◽  
...  
Keyword(s):  
Smart Grid ◽  
Power Quality ◽  
Quality Issues

scholarly journals Reparation of voltage disturbance using PR controller-based DVR in Modern power systems

2021 ◽  
Vol 27 (1) ◽  
pp. 16-29
Author(s):  
D. Danalakshmi ◽  
S. Prathiba ◽  
M. Ettappan ◽  
D. Mohan Krishna
Keyword(s):  
Smart Grid ◽  
Power Systems ◽  
Power Quality ◽  
Distribution System ◽  
Harmonic Distortion ◽  
Fast Response ◽  
Grid Environment ◽  
Dynamic Voltage Restorer ◽  
Pr Controller ◽  
Compensating Devices

Abstract The Smart Grid environment gives more benefits for the consumers, whereas the power quality is one of the challenging factors in the smart grid environment. To protect the system equipment and increase the reliability, different filter technologies are used. Even though, consumers’ expectations towards the power quality are not fulfilled. To overcome these drawbacks and enhance the system reliability, a new Custom Power Devices (CPD) are introduced in the system. Among different CPDs, the Dynamic Voltage Restorer (DVR) is one of the voltage compensating devices that is used to improve the power quality during distortions. When the distortions such as voltage swell and sag occur in the distribution system, the control strategy in the DVR plays a significant role. In this article, the DVR performance using Proportional Integral (PI), Proportional Resonant (PR) controllers are analyzed. A robust optimization algorithm called Self Balanced Differential Evolution (SBDE) is used to find the optimal gain values of the controllers in order to reach the target of global minimum error and obtain fast response. Then, a comparative analysis is performed between different controllers and verified that the performance of PR controller is superior than the other controllers. It has been found that the proposed PR controller strategy reduces the Total Harmonic Distortion (THD) values for all types of faults. The proposed SBDE optimized DVR with PR controller reduces the THD value less than 4% under voltage distoration condition. The DVR topology is validated in MATLAB/SIMULINK in order to detect the disturbance and inject the voltage to compensate the load voltage.

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