scholarly journals Comparative investigation of single-phase Distributed Grid-connected with and without D-STATCOM

2021 ◽  
Vol 309 ◽  
pp. 01045
Author(s):  
Kalagotla Chenchireddy ◽  
Khammampati R Sreejyothi ◽  
V Kumar
Keyword(s):  
Power System ◽  
Power Quality ◽  
Power Supply ◽  
Single Phase ◽  
Comparative Investigation ◽  
Power Devices ◽  
Voltage Swell ◽  
Quality Issues ◽  
Basic Power ◽  
Custom Power

Power quality becomes one of the significant contemplations in the power system. It has become significant particularly with the presentation of advanced devices. These high-level advanced devices are sensitive to the nature of the power supply. The power quality refers to the voltage, current, and frequency at the evaluated value. If any variation occurred in these quantities the standard rating is considered as the power quality problem. The power quality issues like loss of sine, voltage sag, voltage swell, short interruption, long interruption, flicker, and harmonics. To overcome these power quality issues, we like to utilize custom power devices on the distribution side. Among various custom power devices, Distribution Static Synchronous Compensator is liked to use for expanding the power quality, on account of their basic power supply at the circulation power system which can’t be interfered with development and less complexity. This paper presents the near research of single-phase with and without D-STATCOM by utilizing MATLAB Simulink programming.

scholarly journals A control strategy on power quality improvement in consumer side using custom power device

2019 ◽  
Vol 15 (1) ◽  
pp. 80
Author(s):  
Danalakshmi D ◽  
Srinivas Bugata ◽  
Kohila J
Keyword(s):  
Power System ◽  
Power Quality ◽  
Control Strategy ◽  
Control Strategies ◽  
Power Devices ◽  
Dynamic Voltage Restorer ◽  
Synchronous Reference Frame ◽  
Power Quality Improvement ◽  
Dynamic Voltage ◽  
Custom Power

<p>At a recent time voltage distortion is one of the foremost power quality problem at all level of power system. Power electronic controllers like various filtering technology have been used for more desirable solution of power quality problems to users. But still there is a voltage and frequency deviations problem in the power system leads to reduce in quality of power and thereby reduce the life of consumer equipment. To overcome this drawback and protects the sensitive loads from power quality problems, custom power devices are used. Among various custom power devices, Dynamic voltage restorer (DVR) is an ultimate solution to address the voltage correlated power quality problems. DVR is a usual three phase inverter which transforms DC to AC and vice-versa using DC link capacitor. Whenever utility is distorted by voltage correlated faults, DVR is dynamic and it shields the load from utility distortions. Whenever distortion arises, the control strategy for the DVR plays significant role to make the DVR in active condition. Among all control strategies, Synchronous reference frame theory is simple and suitable for DVR. The DVR topology is verified and validated using SIMULINK/MATLAB.</p>

scholarly journals Analysis and Mitigation of Power Quality Issues in Distributed Generation Systems Using Custom Power Devices

IEEE Access ◽  
2018 ◽  
Vol 6 ◽  
pp. 16816-16833 ◽  
Author(s):  
Eklas Hossain ◽  
Mehmet Rida Tur ◽  
Sanjeevikumar Padmanaban ◽  
Selim Ay ◽  
Imtiaj Khan
Keyword(s):  
Power Quality ◽  
Distributed Generation ◽  
Power Devices ◽  
Quality Issues ◽  
Custom Power

Analysis of AC-AC Converter Based Dynamic Voltage Restorer for Maintaining Power Quality in the Transmission Line

2016 ◽  
Vol 1 (3) ◽  
pp. 501
Author(s):  
Tamilvanan G. ◽  
Mahendran S.
Keyword(s):  
Power System ◽  
Power Quality ◽  
Pulse Width Modulation ◽  
Voltage Sag ◽  
Time Duration ◽  
Dynamic Voltage Restorer ◽  
Unbalanced Voltage ◽  
Nominal Voltage ◽  
Dynamic Voltage ◽  
Voltage Swell

<p>In the power system the major issue is to maintain the power quality .The term of power quality is to maintain the disturbance less voltage to the power system. The voltage disturbance mainly caused by voltage sag, voltage swell and harmonics presented in the system. If the system voltage is going below to the nominal voltage, then it is called as voltage sag. These power quality (PQ) events typically last for less than one second. If the system voltage is going above the nominal voltage, there it is called as voltage swell. The AC-AC converter based DVR is proposed. It can properly compensate for unlimited time duration, balanced, and as well as unbalanced voltage sag by observing the power from the grid. The pulse width modulation technique is used to triggering the switches. Only by the simple Bidirectional switches were used for generate the compensation voltage.</p>

Intelligent energy scheduling in a microgrid with custom power devices

2020 ◽  
pp. 002072092092966
Author(s):  
V Pramila ◽  
S Chandramohan
Keyword(s):  
Energy Storage ◽  
Power System ◽  
Energy Resources ◽  
Distributed Energy ◽  
Power Devices ◽  
Energy Storage Devices ◽  
Storage Devices ◽  
Distributed Generators ◽  
Distributed Energy Storage ◽  
Custom Power

The increasing penetration of distributed generators may harm power system and its control and operations. The microgrid offers a better solution for the issues in grid operation. Undergraduate electrical engineering and postgraduate power system and power electronics students need to understand the working of microgrid with renewable energy resources along with the optimization and scheduling of power quality custom power devices. To cater better understanding of the microgrid with renewable resources, wind, solar, distributed generators, distributed energy storage devices, DSTATCOM, and plug-in electric vehicle charging load are included in this work presented. In this paper, multiobjective optimization for the operation of microgrid to account for uncertainties in a stochastic energy resources management system is considered. Nonlinear constraint optimization to reduce the running cost, losses, and voltage variations is focused for the optimization. Loss sensitivity analysis is used to find the location wind, solar, distributed generators, distributed energy storage devices, and DSTATCOM. Firefly algorithm is used to optimize the size of distributed generators and DSTATCOM. Optimization reduced the loss, power taken from the grid and improves the voltages in the system. This paper is self-explanatory to the undergraduate and postgraduate students to understand the power flow analysis of microgrid with hybrid renewable energies and optimization technique.

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