Author
T. Ruban Deva Prakash
Bio: T. Ruban Deva Prakash is an academic researcher from Noorul Islam University. The author has contributed to research in topics: Harmonics & Switched-mode power supply. The author has an hindex of 4, co-authored 15 publications receiving 40 citations.
Papers
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TL;DR: In this article, a unified power quality conditioner is proposed to minimize the power quality impact present in the matrix converter instead of a passive filter, which eliminates the total harmonic distortions efficiently, and mitigates sag and swell present in matrix converter′s load voltage.
Abstract: This paper proposes a unified power quality conditioner to minimize the power quality impact present in the matrix converter instead of a passive filter. A matrix converter produces significant harmonics and converts non-standard frequency components into load. The proposed approach eliminates the total harmonic distortions (THD) efficiently, and mitigates sag and swell present in the matrix converter′s load voltage. Because of the smaller THD, the harmonic pollution in the power system will be reduced and the power quality will be increased. The proposed approach has been tested and validated on the matrix converter using Matlab/Simulink software. The simulation results are shown to demonstrate the advantages of the proposed scheme.
5 citations
TL;DR: In this paper, a new power line conditioner called the universal power line manager (UPLM) is proposed to regulate the supply frequency, to control the power flow, to minimize the current harmonics and to regulate voltage for a fixed-speed induction-type wind generator.
Abstract: A wind power plant meets so many power quality issues when it is connected to a microgrid. This paper envisages a new power quality conditioner to regulate the supply frequency, to control the power flow, to minimize the current harmonics and to regulate the voltage for a fixed-speed induction-type wind generator. The proposed new power line conditioner is called the universal power line manager (UPLM). The control circuit of the UPLM is the combination of the control system of the unified power quality conditioner, power flow control and a frequency regulator. For these reasons, the compensator proposed here is called the UPLM. The complete system has been developed, analysed and validated by Matlab/Simulink study. Simulation results are presented to confirm that the new approach has a better performance for wind turbine generation.
5 citations
23 Mar 2011
TL;DR: In this paper, a constant frequency unified power quality conditioning system (CF-UPQC) consisting of a UPQC and a matrix converter based frequency changer is presented.
Abstract: The aim of this paper is to maintain the constant frequency in the utility using constant frequency unified power quality conditioner. A constant frequency unified power quality conditioning system (CF-UPQC) consists of a unified power quality conditioner (UPQC) and a Matrix converter based frequency changer. UPQC is a combination of series active and shunt active filter. The series active filter and shunt active filters are used to compensate the voltage, current imbalance and harmonics. Frequency converter(Matrix converter) is used to regulate the supply frequency when it varies beyond the power quality limit. The performance of the CF-UPQC which is composed by UPQC and matrix converter has been verified based on the simulation results.
5 citations
TL;DR: In this paper, a new power line conditioner is proposed to regulate the supply frequency, control the power flow, minimize current harmonics, and regulate the voltage for a fixed-speed induction generator type wind generator.
Abstract: A wind power plant meets many power quality issues when it is connected with a microgrid, because the voltage and frequency are not stable in a microgrid. This article envisages a new power quality conditioner to regulate the supply frequency, control the power flow, minimize current harmonics, and regulate the voltage for a fixed-speed induction generator type wind generator. The proposed new power line conditioner is called a universal power line manager. The control circuit of the universal power line manager is a combination of the control system of a unified power quality conditioner, power flow control, and a frequency regulator. For these reasons, the proposed universal power line manager is very suitable for wind power generators. The universal power line manager's matrix converter controls the windmill power flow with respect to the microgrid frequency and voltage. Hence, the microgrid can maintain constant voltage and frequency. The complete system has been developed, analyzed, and vali...
5 citations
TL;DR: The principles of genetics involving natural selection and evolutionary computing applied for producing an economic dispatch by simulating "Survival of the fittest" among chromosomes by randomized information exchange are applied.
Abstract: An efficient and optimum economic operation and planning of electric power generation systems is very important. The basic requirement of power economic dispatch ED is to generate adequate electricity to meet load demand at the lowest possible cost under a number of constrains. Genetic Algorithms GA represents a class of general purpose stochastic search techniques which simulate natural inheritance by genetics. In this paper, the principles of genetics involving natural selection and evolutionary computing applied for producing an economic dispatch. By simulating "Survival of the fittest" among chromosomes, the optimal chromosome is searched by randomized information exchange. In every generation a new set of artificial chromosomes is created using bits and pieces of the fittest of old ones while randomized.
4 citations
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TL;DR: In this article, a comprehensive review on the unified power quality conditioner (UPQC) to enhance the electric power quality at distribution levels is presented, which is intended to present a broad overview on the different possible UPQC system configurations for single-phase and three-phase (threewire and four-wire) networks, different compensation approaches, and recent developments in the field.
Abstract: This paper presents a comprehensive review on the unified power quality conditioner (UPQC) to enhance the electric power quality at distribution levels. This is intended to present a broad overview on the different possible UPQC system configurations for single-phase (two-wire) and three-phase (three-wire and four-wire) networks, different compensation approaches, and recent developments in the field. It is noticed that several researchers have used different names for the UPQC based on the unique function, task, application, or topology under consideration. Therefore, an acronymic list is developed and presented to highlight the distinguishing feature offered by a particular UPQC. In all 12 acronyms are listed, namely, UPQC-D, UPQC-DG, UPQC-I, UPQC-L, UPQC-MC, UPQC-MD, UPQC-ML, UPQC-P, UPQC-Q, UPQC-R, UPQC-S, and UPQC-VA. More than 150 papers on the topic are rigorously studied and meticulously classified to form these acronyms and are discussed in the paper.
620 citations
TL;DR: In this article, the authors proposed a reactive power management of wind farms in most technical and economical way without compromising quality power system voltage, and considering the wind turbine technology for already commissioned wind farm, and change in WT technology in present scenario.
Abstract: Wind generation is currently the major form of new renewable, generation in the world. The wind power is totally dependent on wind flow, due to randomness and uncertainty of wind flow, the wind power generation is quite fluctuating in nature and large scale wind farms may cause significant impact to the power system safety, quality and stability. The active power mainly depends upon the potential of the wind power produced and wind turbine generator design. The reactive power demand on the other hand depends upon conversion devices and recovered power quality fed to the grid. The wind farms which accesses to power grid cause fluctuations and reactive power redistribution and sometimes lead to voltage collapse. Similarly, the dynamic voltage stability is a major challenge faced by distribution network operators. The easy solution comes into picture is to install reactive power source devices with optimization of the existing assets to deliver enhanced reactive power to the grid. With solution to reliability, voltage regulation, reactive power requirements, grid integration problems, weak grid interconnection, off grid wind power generation and its integration to power grid, wind power penetration in distribution grid, wind power uncertainty, flicker and harmonics etc. The categorization of issue considered the goal of our work is the reactive power management of wind farm in most technical and economical way without compromising quality power system voltage, and considering the wind turbine technology for already commissioned wind farm, and change in WT technology in present scenario. More than 100 research publications on voltage and reactive power control of wind farms, extending from year 2003 to 2013 have been critically examined, classified and listed for quick reference.
85 citations
01 Jan 2006
TL;DR: Although many operational aspects affect wind power plant operation, this paper focuses on power quality as discussed by the authors, and it is very important to understand the sources of disturbances that affect the power quality, since wind power plants are connected to the grid.
Abstract: Although many operational aspects affect wind power plant operation, this paper focuses on power quality. Because a wind power plant is connected to the grid, it is very important to understand the sources of disturbances that affect the power quality.
62 citations
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TL;DR: In this paper, a review of the work done in the field of micro grid has been reviewed and different load models can be simulated and analyzed using MATLAB and PSCAD software.
Abstract: The demand for high quality electricity and growing electricity consumption has been caused by increas ing electrification of daily life causes and the rising number of sensitive or critic al loads. Due to the rapid increase in global energ y consumption and the diminishing of fossil fuels, the customer demand fo r new generation capacities and efficient energy pr oduction, delivery and utilization keeps rising. The micro grid concept ha s the potential to solve major problems arising fro m large penetration of distributed generation in distribution systems. A proper contro l strategy should be implemented for a successful o peration of a micro grid . Different load models can be simulated and analyzed using MATLAB and PSCAD software. In this paper, th e work done in the field of Micro Grid has been reviewed.
55 citations