International Research Journal of Engineering and Technology (IRJET) e-ISSN: 2395 -0056 Volume: 04 Issue: 03 | March -2017
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p-ISSN: 2395-0072
A NOVAL METHOD FOR IMPROVING POWER QUALITY OF THE DISTRIBUTION SYSTEM CONNECTED TO THE MICROGRID Y.SUBRAHMANYAM1, K.SWATHI2, N.NARASIMHULU3, Dr.R.RAMACHANDRA4 1(PG
Scholor, Dept of EEE (EPS), SKD, Gooty, Andhrapradesh, India.) Professor, Dept of EEE, SKD, Gooty, Andhrapradesh, India). 3(Associate Professor & HOD, Dept of EEE, SKD, Gooty, Andhrapradesh, India) 4(Principal SKD, Gooty, Andhrapradesh, India) -------------------------------------------------------------------------***-----------------------------------------------------------------------2(Assistant
Abstract:- This project presents a flexible ac distribution system device for microgrid applications. The device aims to improve the power quality and reliability of the overall power distribution system that the microgrid is connected to. The control design employs a new model predictive control algorithm which allows faster computational time for large power systems by optimizing the steady-state and the transient control problems separately. Extended Kalman filters are also employed for frequency tracking and to extract the harmonic spectra of the grid voltage and the load currents in the microgrid. The design concept is verified through different test case scenarios to demonstrate the capability of the proposed device and the results obtained are discussed. Detailed simulations to support the same have been carried out in MATLAB, and the results are presented.
inserted air conditioning/dc and dc/dc converters are required for different home and office offices to supply diverse dc voltages. Air conditioning/DC/AC converters are generally utilized as drives so as to control the speed of air conditioning engines in modern plants. The keen matrix idea is right now winning in the electric power industry. The goal of building a shrewd lattice is to give solid, amazing electric energy to computerized social orders in an earth well disposed and feasible way. One of most essential fates of a keen matrix is the propelled structure which can encourage the associations of different air conditioning and dc era systems, vitality stockpiling choices, and different air conditioning and dc loads with the ideal resource usage and operation effectiveness. To accomplish those objectives, control devices innovation assumes a most essential part to interface distinctive sources and loads to a keen matrix. This venture proposes a cross breed air conditioning/dc miniaturized scale network to decrease the procedures of numerous dc–ac–dc or ac–dc–ac transformations in an individual air conditioning or dc system. The half breed matrix comprises of both air conditioning and dc systems associated together by multi-bidirectional converters. Air conditioning sources and loads are associated with the air conditioner arrange though dc sources and loads are fixing to the dc organize. Vitality stockpiling systems can be associated with dc or air conditioning grid. The proposed cross breed network can work in a lattice tied or self-ruling mode. The coordination control calculations are proposed for smooth power exchange amongst air conditioning and dc grid and for stablesystemoperation under different era and load conditions. Vulnerability and irregular qualities of wind speed, sunlight based illumination level, surrounding temperature, and load are additionally considered in system control and operation
1. INTRODUCTION The idea of micro grid network has offered purchasers with expanded unwavering quality and decrease in all out vitality misfortunes, and has turned into a promising option for customary influence conveyance system. One range of study for the association of a microgrid to the appropriationsystemis the effect of force quality (PQ) issues on the general powersystemexecution. These PQ issues incorporate voltage and recurrence deviations in the network voltage and sounds in the lattice voltage and load streams. To overcome the previously mentioned PQ issues, a few power-molding types of gear, for example, dynamic channels, uninterruptible power supplies, dynamic voltage restorers, and brought together PQ conditioners are generally utilized by purchasers to ensure their heaps and systems against PQ unsettling influences in the conveyance arrange. Notwithstanding, these devices are normally introduced at the buyer sides and the PQ issues that they are fit to deal with are generally restricted. In any case, dc control from photovoltaic (PV) boards or energy units must be changed over into air conditioning utilizing dc/dc sponsors and dc/air conditioning inverters keeping in mind the end goal to interface with an air conditioner system. In an air conditioner system,
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2. LITERATURE SURVEY The insights about Certs microgrid research facility test bed can be clarified from [1] R. Lasseter, J. Eto, B. Schenkman, J. Stevens, H. Vollkommer, D. Klapp, E. Linton, H. Hurtado, and J. Roy, "Certs microgrid research center proving ground, and brilliant loads," IEEE Trans. Control Del., vol. 26, no. 1, pp. 325–332, Jan. 2011. The insights about Distributed Generation can be clarified
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