scholarly journals Self-tuned fuzzy-proportional–integral compensated zero/minimum active power algorithm based dynamic voltage restorer

2018 ◽  
Vol 12 (11) ◽  
pp. 2778-2787 ◽  
Author(s):  
Nirmalya Mallick ◽  
Vivekananda Mukherjee
Keyword(s):  
Active Power ◽  
Dynamic Voltage Restorer ◽  
Proportional Integral ◽  
Voltage Restorer ◽  
Dynamic Voltage

An Optimum UPQC with Minimum VA Requirement and Mitigation of Unbalanced Voltage Sag

2005 ◽  
Vol 2 (2) ◽  
Author(s):  
Y. Y. Kolhatkar ◽  
S. P. Das
Keyword(s):  
Active Power ◽  
Voltage Sag ◽  
Dynamic Voltage Restorer ◽  
Active Power Filters ◽  
Power Filters ◽  
Voltage Restorer ◽  
Unbalanced Voltage ◽  
Dynamic Voltage ◽  
Simulation Results ◽  
Power Quality Conditioner

The paper deals with an optimized Unified Power Quality Conditioner (UPQC), which aims at the integration of series active and shunt active power filters with minimum VA loading of the UPQC. The series active filter is a Dynamic Voltage Restorer (DVR), which is operated in twofold functioning mode. During the unbalanced voltage sag, the DVR compensates the unbalance in the voltage sag. It also regulates the voltage at the load end with minimum VA loading of the overall UPQC by optimum angle voltage injection. Validity of the proposed scheme is proved through extensive simulation results.

The Repetitive Control for Dynamic Voltage Restorer

2012 ◽  
Vol 546-547 ◽  
pp. 833-839 ◽  
Author(s):  
Zhe Li ◽  
Zheng Guo Wu ◽  
Li Xia ◽  
Wei Ping Zhou
Keyword(s):  
Repetitive Control ◽  
Voltage Regulation ◽  
Dynamic Voltage Restorer ◽  
Integral Control ◽  
Control Approach ◽  
Proportional Integral ◽  
Voltage Restorer ◽  
Control Scheme ◽  
Dynamic Voltage ◽  
Proportional Integral Control

A novel control scheme for the dynamic voltage restorer (DVR) is proposed to achieve fast response and effective sag and swell compensation capabilities. In this control scheme, the proportional integral control is used to guarantee system dynamic performance and the repetitive control is used to improve voltage waveform quality. Compared to classical proportional integral control, DVR based on this control scheme can restore load voltage almost sinusoidal and shows better transient and steady-state responses when facing sag or swell conditions. The proposed control scheme has been verified by simulation on Matlab. Simulation results show that the control approach performs very effectively and yields excellent voltage regulation.

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