Search results for: R Jegatheesan
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This paper examines the family of high gain DC-DC converter derived from I-IIA configuration, primarily based on Reduced Redundant Power Processing (RRPP). The primary intention of this study is to determine the best topology for high voltage applications. The steady-state analysis of the proposed topologies is investigated and verified. The denominators of the voltage conversion ratio are observed...
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International Journal of Electrical Power & Energy Systems > 2016 > 82 > C > 136-149
The inability of conventional energy sources to fully meet the rapidly increasing energy demands in today’s world has led to the growing importance of hybrid power generation systems that incorporate renewable energy sources. This work proposes an optimally designed multi-source standalone hybrid generation system comprising of photovoltaic panels, wind turbine generators, batteries and diesel generator...
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Procedia Computer Science > 2015 > 57 > Complete > 258-268
The multi-objective scheduling of maximizing the profit and minimising the emission of a Hydro -Thermal System (HTS) using Lagrangian Relaxation-Evolutionary Programming (LR-EP) technique has been presented in this paper. The various constraints of the hydro and thermal power system network considered are power balance, reservoir storage, turbine flow rate and loading limits of both thermal and hydro...
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The estimation of network parameters is essential for estimating the status of the power system. Even a single error in power system considerably affects the estimated states. The Residual Analysis method is implemented for the estimation of network parameters. The Normalized Residual analysis is basically used for finding out any error present in the network parameters, like incorrect branch parameter...
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State Estimation (SE) is a key Energy Management System (EMS) function, responsible for estimating the state of the power system. Power system is a quasi-static system and hence changes slowly with time. State estimation is computationally expensive and it is a vital problem for the operating engineers. This paper presents a bird's eye view on different methodologies and developments in the area of...
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Loss of system stability, high transmission loss, voltage limit violations, inability to utilize transmission line capability up to the thermal limit and cascade tripping are some of the operational problems in a power system. Flexible Alternating Current Transmission Systems (FACTS) is a recent technological development in electrical power system that has come up to alleviate the said operational...
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Newton-Raphson power flow method that makes use of the bus admittance matrix remains as an efficient and most popular method to get the power flow solution. Elements of Jacobian matrix are computed from standard expressions, which lack physical significance. In this paper, elements of the Jacobian matrix are obtained considering the power flows in the network elements. Noting that the partial derivatives...
