scholarly journals Advanced Power Electronic Converters and Power Quality Conditioning

2018 ◽  
Vol 2018 ◽  
pp. 1-2
Author(s):  
Chi-Seng Lam ◽  
Yongheng Yang ◽  
Qing Zhong ◽  
Yandong Chen ◽  
Keng-Weng Lao
Keyword(s):  
Power Quality ◽  
Power Electronic ◽  
Power Electronic Converters

scholarly journals Modeling, Control and Placement of FACTS Devices: A Review

2020 ◽  
Vol 39 (4) ◽  
pp. 719-733
Author(s):  
Ayesha Haroon ◽  
Irfan Shafqat Javed ◽  
Huma Rehmat Baig ◽  
Ali Nasir
Keyword(s):  
Power Quality ◽  
Distribution Systems ◽  
Reactive Power ◽  
Voltage Regulation ◽  
Reactive Power Compensation ◽  
System Stability ◽  
Power Electronic ◽  
Power Electronic Converters ◽  
Transmission Systems ◽  
Facts Devices

Over the past two decades, developing distributed energy sources in electric power grid have created new challenges related to the power quality, voltage adjustment and proficient energy utilization. Power electronic converters are widely used to interface the emerging energy systems (without and with energy storage) and smart buildings with the transmission and distribution systems. Flexible Ac Transmission Systems (FACTS) and Voltage-Source Converters (VSC), with smart dynamic controllers, are emerging as stabilization and power filtering equipment to improve the power quality. FACTS devices are of vital significance for tackling the problem of voltage instability which is inevitable and leads to losses in transmission system networks. These devices provide fast voltage regulation, ensure system stability and reactive power compensation. In this regard, modeling, control and appropriate placement of these devices in the transmission lines have been of great importance for researchers of power transmission systems. By using high speed power electronic converters, FACTS perform many times faster than the conventional compensation techniques. FACTS not only provide fast voltage regulation but also damping of active power oscillations and reactive power compensation. Hence, they increase the availability and reliability of the power systems. But, the functioning of a FACTS device extremely reckons upon its parametric quantity, appropriate placement, and sizing in the power network. In this paper, an extensive literature survey is presented to discuss and investigate these parameters of FACTS devices.

scholarly journals Improvement of Power Converters Performance by an Efficient Use of Dead Time Compensation Technique

2020 ◽  
Vol 10 (9) ◽  
pp. 3121 ◽  
Author(s):  
Sheeraz Iqbal ◽  
Ai Xin ◽  
Mishkat Ullah Jan ◽  
Mohamed Abdelkarim Abdelbaky ◽  
Haseeb Ur Rehman ◽  
...  
Keyword(s):  
Power Quality ◽  
Power Converters ◽  
Dead Time ◽  
Energy Systems ◽  
Quality Parameters ◽  
Power Electronic ◽  
Renewable Energy Resources ◽  
Power Electronic Converters ◽  
Compensation Technique ◽  
Dead Time Compensation

The advent of renewable energy resources and distributed energy systems herald a new set of challenges of power quality, efficient distribution, and stability in the power system. Furthermore, the power electronic converters integration has been increased in interfacing alternate energy systems and industries with the transmission and distribution grids. Owing to the intermittency of renewable energy resources and the application of power electronic converters the power distribution faces peculiar challenges. The dead-time effects are among the main challenges, which leads to the distortion of third harmonics, phase angle, torque pulsation, and induction motor current, causing severe quality problems for power delivery. To tackle these problems, this paper proposes a novel dead time compensation technique for improving the power quality parameters and improving the efficiency of power converters. The proposed model is simulated in MATLAB and the parametric equations are plotted against the corresponding parametric values. Furthermore, by implementing the proposed strategy, significant improvements are attained in the torque pulsation, speed, and total harmonic distortion of the induction motor. The comparisons are drawn between with and without dead time compensation technique, the former shows significant improvements in all aspects of the power quality parameters and power converters efficiency.

scholarly journals Power Management Policies in Distributed Generation and Potential Opportunities for Future Research

2019 ◽  
Vol 9 (2) ◽  
pp. 143-148
Keyword(s):  
Power Management ◽  
Power Quality ◽  
Distributed Generation ◽  
Unmet Needs ◽  
Future Research ◽  
Power Electronic ◽  
Power Electronic Converters ◽  
Prior Art ◽  
Management Policies

In this paper widespread prior-art search of the distributed generation and its power management policies are presented, the conclusions derived by various authors for different objective statements are explored. In Microgrids with non conventional distributed generation systems, power quality issues are increasing due to power electronic converters involved for the energy conversion. Hence, the purpose of this paper is to showcase the unmet needs of the microgrids in terms of power quality problems and succeeded by the case study on the different available compensation techniques, algorithms and devices. Finally, reflected the importunate gaps available and promising opportunities for future research.

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