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UERJ - Universidade do Estado do Rio de Janeiro / Rio de Janeiro State University
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Papers by RAJI KRISHNA 17PHD1015
The growing concern about global climatic changes and fossil fuel depletion calls for a shift fro... more The growing concern about global climatic changes and fossil fuel depletion calls for a shift from conventional modes of transportation to electric vehicles (EV). The idea of bidirectional interaction between grid and Electric vehicle has brought the V2G ,V2H etc. technologies . Bidirectional chargers adds the benefit of EVs by enabling energy transfer from vehicle to grid (V2G) or vehicle to home (V2H) in addition to charging from grid to vehicle(G2V). The adoption and diffusion of EV’s to the power grid is beneficiary from the environmental perspective but they pose a serious impact on the power system. The major issues includes: The peak demand for the electrical grid will increase, the distribution transformer would be overloaded, and the power quality and the reliability of the whole system would be degraded. A possible panacea for mitigating these impacts is to make use of smart charging/discharging capability of EV’s. This paper proposes a day ahead charging algorithm for loa...
International Transactions on Electrical Energy Systems
In recent decades, Renewable Energy Sources (RES) have become more attractive due to the depletin... more In recent decades, Renewable Energy Sources (RES) have become more attractive due to the depleting fossil fuel resources and environmental issues such as global warming due to emissions from fossil fuel-based power plants. However, the intermittent nature of RES may cause a power imbalance between the generation and the demand. The power imbalance is overcome with the help of Distributed Generators (DG), storage devices, and RES. The aggregation of DGs, storage devices, and controllable loads that form a single virtual entity is called a Virtual Power Plant (VPP). In this article, the optimal scheduling of DGs in a VPP is done to minimize the generation cost. The optimal scheduling of power is done by exchanging the power between the utility grid and the VPP with the help of storage devices based on the bidding price. In this work, the state of charge (SOC) of the batteries is also considered, which is a limiting factor for charging and discharging of the batteries. This improves th...
2022 International Virtual Conference on Power Engineering Computing and Control: Developments in Electric Vehicles and Energy Sector for Sustainable Future (PECCON)
The growing concern about global climatic changes and fossil fuel depletion calls for a shift fro... more The growing concern about global climatic changes and fossil fuel depletion calls for a shift from conventional modes of transportation to electric vehicles (EV). The idea of bidirectional interaction between grid and Electric vehicle has brought the V2G ,V2H etc. technologies . Bidirectional chargers adds the benefit of EVs by enabling energy transfer from vehicle to grid (V2G) or vehicle to home (V2H) in addition to charging from grid to vehicle(G2V). The adoption and diffusion of EV’s to the power grid is beneficiary from the environmental perspective but they pose a serious impact on the power system. The major issues includes: The peak demand for the electrical grid will increase, the distribution transformer would be overloaded, and the power quality and the reliability of the whole system would be degraded. A possible panacea for mitigating these impacts is to make use of smart charging/discharging capability of EV’s. This paper proposes a day ahead charging algorithm for loa...
International Transactions on Electrical Energy Systems
In recent decades, Renewable Energy Sources (RES) have become more attractive due to the depletin... more In recent decades, Renewable Energy Sources (RES) have become more attractive due to the depleting fossil fuel resources and environmental issues such as global warming due to emissions from fossil fuel-based power plants. However, the intermittent nature of RES may cause a power imbalance between the generation and the demand. The power imbalance is overcome with the help of Distributed Generators (DG), storage devices, and RES. The aggregation of DGs, storage devices, and controllable loads that form a single virtual entity is called a Virtual Power Plant (VPP). In this article, the optimal scheduling of DGs in a VPP is done to minimize the generation cost. The optimal scheduling of power is done by exchanging the power between the utility grid and the VPP with the help of storage devices based on the bidding price. In this work, the state of charge (SOC) of the batteries is also considered, which is a limiting factor for charging and discharging of the batteries. This improves th...
2022 International Virtual Conference on Power Engineering Computing and Control: Developments in Electric Vehicles and Energy Sector for Sustainable Future (PECCON)