scholarly journals Neutral Current Compensation in grid tied Solar PV-BES Utility System using Four Leg VSC based DSTATCOM with SRF Control Strategy

2020 ◽  
Vol 9 (1) ◽  
pp. 2689-2697
Keyword(s):  
Power Quality ◽  
Distribution System ◽  
Neutral Current ◽  
Solar Pv ◽  
Static Synchronous Compensator ◽  
Synchronous Reference Frame ◽  
Power Injection ◽  
Utility System ◽  
Unbalanced Load ◽  
Battery Energy

In this proposed work, Synchronous Reference Frame (SRF) based control algorithm is used in Photovoltaic (PV) grid integration through Distribution Static Synchronous Compensator (DSTATCOM) with Battery Energy Storage (BES) system for simultaneous mitigation of power quality issues and for real power injection. In order to makeover the issues in the quality of power in the system by compensating neutral current, asymmetrical loads in the four wire three phase nonlinear and unbalanced load distribution system. The highest power of PV is tracked using Incremental Conductance (Inc) method and the voltage of DC bus is preserved by Bidirectional DC-DC Converter (BDDC). The proposed system works as PV-DSTATCOM mode which performs DSTATCOM operation by improving power quality with the capability of transferring the generated PV power to the consumers and Grid, and in BES-DSTATCOM mode it supplies power to the utility load. The proposed system is implemented and modeled for 11kV/440V utility system. The results have been obtained using sim power system tools in MATLAB/SIMULINK environment.

Comparison of DSTATCOM Performance for Voltage Sag Alleviation

2016 ◽  
Vol 4 (2) ◽  
pp. 305 ◽  
Author(s):  
Miska Prasad ◽  
Ashok Kumar Akella
Keyword(s):  
Power Quality ◽  
Distribution System ◽  
Voltage Source ◽  
Voltage Sag ◽  
Voltage Source Inverter ◽  
Static Synchronous Compensator ◽  
Nonlinear Loads ◽  
Major Power ◽  
Synchronous Reference Frame ◽  
Reference Current Generation

<p><em>This paper describes the comparative analysis of three different control techniques of distributed flexible AC transmission system (DFACTS) controller called as distributed static synchronous compensator (DSTATCOM), </em><em>aimed at power quality (PQ) enhancement in terms of voltage sag mitigation in a three-phase four-wire (3p4w) distribution system. A DSTATCOM is one of the major power quality improvement devices which consist of a DC energy source, a voltage source inverter (VSI), a filter, a coupling transformer and the control system. The control strategy based on synchronous reference frame (SRF) theory, instantaneous active and reactive current (IARC) theory and propositional-integral (PI) controller has been used for reference current generation of voltage source inverter (VSI) based DSTATCOM. The SRF, IARC and PI control based DSTATCOM is validated through dynamic simulation in a MATLAB\SIMULINK environment under linear as well as nonlinear loads.</em></p>

scholarly journals Rooftop Solar PV Penetration Impacts on Distribution Network and Further Growth Factors—A Comprehensive Review

Electronics ◽  
2020 ◽  
Vol 10 (1) ◽  
pp. 55
Author(s):  
Busra Uzum ◽  
Ahmet Onen ◽  
Hany M. Hasanien ◽  
S. M. Muyeen
Keyword(s):  
Solar Energy ◽  
Power Quality ◽  
Distribution System ◽  
Renewable Energy Sources ◽  
Distribution Network ◽  
System Stability ◽  
Solar Pv ◽  
Voltage Quality ◽  
Solution Methods ◽  
Pv Penetration

In order to meet the electricity needs of domestic or commercial buildings, solar energy is more attractive than other renewable energy sources in terms of its simplicity of installation, less dependence on the field and its economy. It is possible to extract solar energy from photovoltaic (PV) including rooftop, ground-mounted, and building integrated PV systems. Interest in rooftop PV system applications has increased in recent years due to simple installation and not occupying an external area. However, the negative effects of increased PV penetration on the distribution system are troublesome. The power loss, reverse power flow (RPF), voltage fluctuations, voltage unbalance, are causing voltage quality problems in the power network. On the other hand, variations in system frequency, power factor, and harmonics are affecting the power quality. The excessive PV penetration also the root cause of voltage stability and has an adverse effect on protection system. The aim of this article is to extensively examines the impacts of rooftop PV on distribution network and evaluate possible solution methods in terms of the voltage quality, power quality, system protection and system stability. Moreover, it is to present a comparison of the advantages/disadvantages of the solution methods discussed, and an examination of the solution methods in which artificial intelligence, deep learning and machine learning based optimization and techniques are discussed with common methods.

scholarly journals Solar Pv Fed Grid Connected System With Reactive Power And Harmonics Compensation

2021 ◽  
Vol 12 (3) ◽  
pp. 3417-3428
Author(s):  
M.Balasubramanian Et.al
Keyword(s):  
Distribution System ◽  
Power Efficiency ◽  
Reactive Power ◽  
Renewable Energy Sources ◽  
Solar Pv ◽  
Synchronous Reference Frame ◽  
Three Phase ◽  
Full Power ◽  
Solar Powered ◽  
Power Point

The aim of this paper is to use renewable energy sources to meet the demand for electricity. For DC-AC conversion, a solar-powered three-phase grid-connected system with a boost (DC-DC) converter and three-phase inverter is used. The updated Perturb and Observe (P&O) Algorithm is used to map the solar photovoltaic system's maximum power point. Synchronous Reference Frame-Phase Locked Loop Theory is used to compensate for harmonic and reactive power. This proposed grid-connected system is used to improve the system's power efficiency as well as extract the full power and feed it to the distribution system. Using Matlab tools, the simulation result demonstrates reasonable efficiency.

scholarly journals A Novel Method to Enhance of Power Quality in Distribution System using IDVR

2019 ◽  
Vol 8 (2S11) ◽  
pp. 1028-1034
Keyword(s):  
Energy Storage ◽  
Power Quality ◽  
Distribution System ◽  
Active Power ◽  
Voltage Sag ◽  
Restoration Technique ◽  
Power Injection ◽  
Long Duration ◽  
Dynamic Voltage ◽  
Novel Method

The dynamic voltage trained worker (DVR) offers series compensation and better management resolution to voltage-sag drawback; as a results of the voltage restoration technique provides Active Power injection into the distribution system, to spice up active power at intervals the system ids done correct alternative of DVR in given network, considerably for mitigating long-duration voltage dips i.e. sag, and sag mitigation amount depends on the energy storage capability of the DVR. This paper prove higher answer in modeling the simulation of voltage sag compensation through Interline Dynamic Voltage trained worker (IDVR) and it provides some way to top off dc-link energy storage dynamically. The IDVR consists of the various} DVRs connected to numerous distribution feeders within the power System. The DVRs within the IDVR system share common energy storage. one all told the DVR compensates for voltage sag showing throughout this feeder, the opposite DVRs top off the energy within the common dc-link dynamically. Thus, one DVR within the IDVR system works in voltage-sag compensation mode whereas the opposite DVRs within the IDVR system operate in constant power management mode. this system involves SPWM technologies to spice up the Doctor of Theology. The simulation results unit of measuring enclosed may additionally} the operative principles of a DVR and shows the effectiveness and also the power of the projected IDVR system to spice up power quality

scholarly journals Power Quality Improvement in Distribution Network using D-STATCOM with Battery Energy Storage System

2021 ◽  
Vol 9 (VIII) ◽  
Author(s):  
Miss. Akshata A. Gawande
Keyword(s):  
Power Quality ◽  
Storage System ◽  
Distribution Networks ◽  
Energy Storage System ◽  
Static Synchronous Compensator ◽  
Parameter Configuration ◽  
Power Quality Improvement ◽  
Utility Distribution ◽  
Battery Energy ◽  
High Level

End-user equipment fails or malfunctions because to power quality issues. Outages and service interruptions affect utility distribution networks, sensitive industrial loads, and important commercial operations, resulting in considerable financial losses for everybody involved. With the restructuring of power networks and the transition towards distributed and scattered generation, the issue of power quality will take on new dimensions. Take positive efforts in this area in developing countries like India, where the volatility in power frequency and many other variables of power quality are serious concerns. As a result of this study, measures that can improve the quality of power are advised. Three-stage control transmission framework with wide compensation range was proposed for Hybrid Static Synchronous Compensator (half and half D-STATCOM) by this technology. Due to these distinct properties, the cost of the framework can be drastically reduced. The circuit design of mixed D-STATCOM is provided first in this proposal. Its V–I trademark is then dissected, studied, and compared to D-STATCOM, which is more common. Finally, a parameter configuration for framework is provided, taking into account the range in which the compensating power is available and avoiding the potential reverberation issue. As a result of this, a control methodology is proposed for half-and-half D-STATCOM to allow operation under diverse voltage and current situations, such as unequal current flow, a voltage plunge, and a voltage shortfall As a final step, a reenactment and test results are provided to verify the planned half breed D-large STATCOM's pay range and high level of performance.

scholarly journals A Fuzzy adaptive hysteresis band controller for three phase four wire UPQC

2018 ◽  
Vol 7 (2.8) ◽  
pp. 652
Author(s):  
S Shamshul Haq ◽  
D Lenine ◽  
S V. N. L. Lalitha
Keyword(s):  
Power Quality ◽  
Distribution System ◽  
Pulse Width Modulation ◽  
Simulation Analysis ◽  
Control Strategies ◽  
Neutral Current ◽  
Transient Conditions ◽  
Three Phase ◽  
Hysteresis Controller ◽  
Fuzzy Adaptive

Unified Power Quality Compensator (UPQC) is used to protect the sensitive loads in the distribution system from voltage and current disturbances. The compensation capability of UPQC depends on the control strategies used for shunt and series converters. Conventional adaptive hysteresis controller pulse width modulation technique had failed to track exactly during transient conditions and disturbances at load and source side. In paper fuzzy adaptive hysteresis controller is proposed for three phase four wire UPQC for compensating voltage sag/swell, current harmonics, voltage harmonics and neutral current compensation. Fuzzy adaptive hysteresis controller can effectively compensate the power quality problems during the transient conditions. A comparative simulation analysis of proposed and conventional methods are presented   in this paper using MATLAB/SIMULINK tool.

scholarly journals Power Quality Improvement using UPQC with Single and Three-Phase Non-linear Loads in Countryside Areas

2019 ◽  
Vol 9 (4) ◽  
pp. 18-24
Author(s):  
Shuchi Vishnoi ◽  
Keyword(s):  
Power Quality ◽  
Distribution System ◽  
Single Phase ◽  
Phase Distribution ◽  
Control Strategies ◽  
Electrical Power ◽  
Synchronous Reference Frame ◽  
Three Phase ◽  
Non Linear ◽  
Distribution Grids

This paper is intended to simulate a power quality conditioning device, Unified Power Quality Conditioner (UPQC), in countryside areas for non-linear loading. From past decades there is much increase in the requirement of the good quality electrical power in single phase distribution grids established in these locations. Due to technical advancement, three-phase loads are practiced more than single phase loads so that the demand for three phase distribution grids is growing. But the installation process of three-phase grids, at countryside areas, is not an economic option and to get access to these systems is a very challenging task. So a neighbouring three-phase distribution system is required to be established at the location, where single-phase to three-phase UPQC with single wire earth return is appropriate for the end user due to economic considerations. A dual compensation strategy is implemented to obtain the reference quantities for controlling the converters. The proposed idea is accomplished to eliminate voltage harmonics and mitigate further instabilities and power quality problems. This system allows the balanced and regulated voltage with lower harmonic content. Synchronous Reference Frame (SRF) based controllers are considered to organize the input grid current and the load voltages of the UPQC. The present prototype under consideration analyses and validates the compensation and controlling techniques using PI controller. The control strategies are simulated using MATLAB/SIMULINK.

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