Dheeraj Varma | Maulana Azad National Institute of Technology (original) (raw)
Address: Bhopal, Madhya Pradesh, India
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Papers by Dheeraj Varma
In this paper the dynamic model of a series motor driven Battery Electric Vehicle integrated with... more In this paper the dynamic model of a series motor driven Battery Electric Vehicle integrated with an
UC is simulated using MATLAB Simulink. The Battery UC configuration used in the paper enables the use of a
less power rated converter thus decreasing the cost of the system and at the same time increasing the life time of
the Battery bank as frequent charging and discharging is avoided. The control algorithm focuses on increasing
the efficiency of the system by using single pedal driving scheme in which the regenerative braking is activated
when the pedal is not operated thus giving a better control on the vehicle and less wastage of energy during
braking. The flow chart of the control scheme used is also included in the paper.
Transportation sector has been shifting its focus from Internal Combustion Engine (ICE) vehicles ... more Transportation sector has been shifting its focus from Internal Combustion Engine (ICE) vehicles to electrified vehicles (EV) to suppress the backdrops of the former like pollution, low efficiency and more dependency on fossil fuels. These vehicles offer reduced environmental effects, good efficiency thus are going to dominate the ICE vehicles in near future. This paper discusses the architectures of different vehicles and the energy sources that can be used for vehicular application emphasising the advantages and disadvantages of each. Power converters that can be used to for controlling the electrical energy flow in an EV are also discussed in this paper
In the 21st century solar energy is predicted to serve as a major source of energy, being the onl... more In the 21st century solar energy is predicted
to serve as a major source of energy, being the only
source having the potential to fulfill the ever increasing
energy needs. Most of the large scale solar farms
employ flat plate photovoltaic concept, so the
installation footprint and shadow effect causes a huge
drop in the electrical efficiency of the system. This
paper aims at developing a methodology to reduce the
area requirements in solar power generation. It
proposes the development of a triangular prism shaped
solar photovoltaic unit, which would reduce the
required area for installation of the panels as opposed
to the conventional method. The paper consists of the
study of a lab level experimental setup of the proposed
model, and comparison of its performance with
conventional flat plate solar cells. The use of reflecting
mirrors within the setup helps improve the efficiency of
the setup, than the panels placed in the same area by
conventional method. It also includes scope of future
development.
In this paper the dynamic model of a series motor driven Battery Electric Vehicle integrated with... more In this paper the dynamic model of a series motor driven Battery Electric Vehicle integrated with an
UC is simulated using MATLAB Simulink. The Battery UC configuration used in the paper enables the use of a
less power rated converter thus decreasing the cost of the system and at the same time increasing the life time of
the Battery bank as frequent charging and discharging is avoided. The control algorithm focuses on increasing
the efficiency of the system by using single pedal driving scheme in which the regenerative braking is activated
when the pedal is not operated thus giving a better control on the vehicle and less wastage of energy during
braking. The flow chart of the control scheme used is also included in the paper.
Transportation sector has been shifting its focus from Internal Combustion Engine (ICE) vehicles ... more Transportation sector has been shifting its focus from Internal Combustion Engine (ICE) vehicles to electrified vehicles (EV) to suppress the backdrops of the former like pollution, low efficiency and more dependency on fossil fuels. These vehicles offer reduced environmental effects, good efficiency thus are going to dominate the ICE vehicles in near future. This paper discusses the architectures of different vehicles and the energy sources that can be used for vehicular application emphasising the advantages and disadvantages of each. Power converters that can be used to for controlling the electrical energy flow in an EV are also discussed in this paper
In the 21st century solar energy is predicted to serve as a major source of energy, being the onl... more In the 21st century solar energy is predicted
to serve as a major source of energy, being the only
source having the potential to fulfill the ever increasing
energy needs. Most of the large scale solar farms
employ flat plate photovoltaic concept, so the
installation footprint and shadow effect causes a huge
drop in the electrical efficiency of the system. This
paper aims at developing a methodology to reduce the
area requirements in solar power generation. It
proposes the development of a triangular prism shaped
solar photovoltaic unit, which would reduce the
required area for installation of the panels as opposed
to the conventional method. The paper consists of the
study of a lab level experimental setup of the proposed
model, and comparison of its performance with
conventional flat plate solar cells. The use of reflecting
mirrors within the setup helps improve the efficiency of
the setup, than the panels placed in the same area by
conventional method. It also includes scope of future
development.