Greetings, I am Dilip.
I am an Electrical Engineer from Tribhuvan University Institute of Engineering, Pulchowk Campus. I am currently working at Yatri Motorcycles as an Embedded Hardware Engineer.
Recent Projects
Recent Projects
June 2023 - Present
"1kW Isolated LLC Resonant Converter"
Compact and efficient design of DC-DC converter to charge a battery pack by another with wide range of battery voltage support and isolation
Objective:
To charge one battery pack by another irrespective of their voltage level within safety values with an option of parallel operation of multiple converters
Methodology: Considering space constraints and wide range of input-output values depending upon the SOC of the battery pack, the LLC Converter is selected. The exact parameter of the converter is to e calculated for required parameters.The frequency and other parameters is to be optimized for maximum efficiency and light load considerations.
Results: Calculation and simulation of parameters are done in MATLAB with very high efficiency. Isolated voltage measurement and driving circuit is to be designed and simulated before building the first prototype.
[Note: Work is in progress]
Methodology: Considering space constraints and wide range of input-output values depending upon the SOC of the battery pack, the LLC Converter is selected. The exact parameter of the converter is to e calculated for required parameters.The frequency and other parameters is to be optimized for maximum efficiency and light load considerations.
Results: Calculation and simulation of parameters are done in MATLAB with very high efficiency. Isolated voltage measurement and driving circuit is to be designed and simulated before building the first prototype.
[Note: Work is in progress]
June 2021 - Apr 2022
"Inductive Power Transfer: Electric Scooter based Design"
Design of wireless power transfer system to charger the electric vehicle with efficient power and room for misalignment to some extent was done as a final year (two semester) project in a four students group
Objective:
To transfer the power upto 150W within the range of 20cm and space constrained by the base area of the scooter taken as a reference. The room of misalignment were to be provided with safety to living beings according to health standards.
Methodology: Inductive wireless power transfer was chosen as near field high power transmission. The magnetic field standards limited the flux density around the coils, which was used to optimize the different coil designs within the mechanical constraints. Different coil shapes and dimentions were simulated in Multiphysics Simulation tool to select the optimal design for our requirement. The electronic circuit of the system was then designed and simulated with parts available to our area.
Results: The project was presented to department with working hardware prototype. The device performance was calculated and found to meet the criteria specified. The maximum efficiency of the power transfer was achieved upto 90%.
View final year project report↗
Methodology: Inductive wireless power transfer was chosen as near field high power transmission. The magnetic field standards limited the flux density around the coils, which was used to optimize the different coil designs within the mechanical constraints. Different coil shapes and dimentions were simulated in Multiphysics Simulation tool to select the optimal design for our requirement. The electronic circuit of the system was then designed and simulated with parts available to our area.
Results: The project was presented to department with working hardware prototype. The device performance was calculated and found to meet the criteria specified. The maximum efficiency of the power transfer was achieved upto 90%.
View final year project report↗
Dec 2019 - Jan 2020
"Induction Heater Case Study and Model Design"
Winner, Energy Hackathon 4.0
Winner, Energy Hackathon 4.0
Detailed analysis of "Transition from LPG to induction heater in Nepal" was done with latest Nepal Electricity Data and scientific forecasting methods. Also, the prototype hardware model of induction heater compatiable with market availale coils was done.
Objective:
As it was 'Energy Hackathon', our objective was to perform scientific analysis of impact under the transition from LPG to induction heater in current grid system and overall economy of people and nation in Nepal and present whether it is good idea or not.
Methodology: With latest consmer data from NEA (Nepal Electricity Authority), the consumption of electrical energy and LPG import in Nepal were forecasted with both NEA forecast and other standard forecast stats. In future, if energy from LPG was to be replaced by the induction cooker, the total energy per person and total cost per person was calculated. At the same time, the impact of this consumption in grid considering cooking time in Nepal and energy cost with peak hour load in the grid.
Results: The result from the analysis were presented in hackathon with detailed benifits and challenges anaylsis along with steps to be taken in advance. Also, the ZVS circuit induction heater model were prepared to demonstrate the possibility of induction heater product development in Nepal. The idea was appreciated by judges with valuable feedbacks. We won under efficiency theme.
Methodology: With latest consmer data from NEA (Nepal Electricity Authority), the consumption of electrical energy and LPG import in Nepal were forecasted with both NEA forecast and other standard forecast stats. In future, if energy from LPG was to be replaced by the induction cooker, the total energy per person and total cost per person was calculated. At the same time, the impact of this consumption in grid considering cooking time in Nepal and energy cost with peak hour load in the grid.
Results: The result from the analysis were presented in hackathon with detailed benifits and challenges anaylsis along with steps to be taken in advance. Also, the ZVS circuit induction heater model were prepared to demonstrate the possibility of induction heater product development in Nepal. The idea was appreciated by judges with valuable feedbacks. We won under efficiency theme.
Feb 2018 - Mar 2018
"Spherical Hybrid Black Body Solar"
Inspired by 'Ferrous Black Body', the solar rays concentraing and reflection free system was designed to be used lightly sunny areas and to reduce the the panel cost by removing the need of ARC (Anti-Reflective Coating).
Objective:
To justify the price of solar panels specially in hilly areas, where solar insolation is very low, we aimed to design the system to improve overall efficiency of the system without increasing the cost.
Methodology: As the panel power rating and surface area was optimized to be used in different areas of the world, the panel was working at very less optimal condition that it was designed for. The solar insolation in hilly areas is very low and thus the price of panel cannot be justified in those areas. Also, ARC (Anti-Reflective) coating adds the more cost to the panel. We utilized 'Ferrous Black Body' concept to increase the solar insolation within safe values and to eliminate the need of ARC. Parabolic dish antenna were covered with mirror to focus the solar rays which was passed through spherically arranged solar panels which was intended to elimate the reflection.
Results: The hardware model was prepared with solar insolation increment achieved upto 50%. The open circuit voltage was measured to measure the effect. The project was presented at LOCUS Exhibition 2018, and we secured second position under electrical theme.
Methodology: As the panel power rating and surface area was optimized to be used in different areas of the world, the panel was working at very less optimal condition that it was designed for. The solar insolation in hilly areas is very low and thus the price of panel cannot be justified in those areas. Also, ARC (Anti-Reflective) coating adds the more cost to the panel. We utilized 'Ferrous Black Body' concept to increase the solar insolation within safe values and to eliminate the need of ARC. Parabolic dish antenna were covered with mirror to focus the solar rays which was passed through spherically arranged solar panels which was intended to elimate the reflection.
Results: The hardware model was prepared with solar insolation increment achieved upto 50%. The open circuit voltage was measured to measure the effect. The project was presented at LOCUS Exhibition 2018, and we secured second position under electrical theme.
About me
We are not strangers, only the introduction is missing.
Hello again, I am Dilip Rana. As I mentioned, I have a bachelor's degree in electrical engineering from Tribhuvan University Pulchowk Campus, which I completed in 2022. I have always been passionate about electrical engineering and power electronics, which made me choose this path in the first place.
As an engineer, I can design, simulate, analyze and prototype the electrical and electronic circuits. MATLAB Simulink and Multisim are my first choice to simulate circuits whereas, I prefer designing PCBs in KiCAD. I really love working on hardware and prototyping projects rather than just the simulation.
I have worked on a wide variety of projects and competed in various competitions that have allowed me to test what I’ve learned and taught me important things along the day. Working as an embedded hardware engineer at Yatri Motorcycles, I understood the value of collaboration from different area of expertise and clear communication between the team members.
Besides engineering, I am fascinated by origami art. Just folding the paper and making amazing art pieces have captivated me. Even though I am not any good at it, the planning and dedication required for this art really inspires me.
You can view my CV↗, if you want to learn more.
As an engineer, I can design, simulate, analyze and prototype the electrical and electronic circuits. MATLAB Simulink and Multisim are my first choice to simulate circuits whereas, I prefer designing PCBs in KiCAD. I really love working on hardware and prototyping projects rather than just the simulation.
I have worked on a wide variety of projects and competed in various competitions that have allowed me to test what I’ve learned and taught me important things along the day. Working as an embedded hardware engineer at Yatri Motorcycles, I understood the value of collaboration from different area of expertise and clear communication between the team members.
Besides engineering, I am fascinated by origami art. Just folding the paper and making amazing art pieces have captivated me. Even though I am not any good at it, the planning and dedication required for this art really inspires me.
You can view my CV↗, if you want to learn more.
Contact me
