Kalhan's Blog

Smart grids and microgrids are the future of the power system we use today. Integrating the power systems with communication devices and adding a data layer has its perks for power system operators as well as the consumers.  This novel power system will generate enormous amounts of data with its maturity. As researchers, it is quite fascinating for us since this means that we get to combine two disciplines, Machine Learning & Power Systems. In this blog post, I will list all the possible applications that I come across of machine learning in power systems. Update: I will start to categorize them into, Microgrid research Energy forecasting Smart grid research Microgrid research Multi-agent systems for microgrid control [ link ] Reinforcement learning for microgrid energy management Detect security breaches Fault detection and classification Microgrid islanding detection Multi-agent reinforcement learning for microgrid control Energy forecasting research Solar energy forecasting ...

I was interested in learning machine learning and deep learning ever since I realized its potential to apply to many research problems in power systems research. So I started learning it. So far, I have done one Coursera specialization, a course (you can probably guess this) and I'm currently doing another specialization. Before this, I went through several youtube videos to get a feel for what ML really is. Apart from this, I'm enrolled in the program by Dr. Michal Fabinger @ Tokyo Data Science My goal here is to recommend the flow of this process, which would have been very helpful in the beginning for me. Although I have given Coursera links most of the content is available open-source for free . So here it goes, Search youtube for videos that explain what machine learning is. There are a lot out there. Don't get stuck in this just take one hour that should be enough.  TensorFlow ML Zero to Hero Then start learning. A good place to start is Coursera - AMII specialization...

This post is a quick reference to the basic git commands and to use GitHub. Get version:   git --version Starting the process git init (Creating a git repository locally in the project folder) git status (displays the state of the working directory and the staging area) Configuring global username/email git config --global user.name '<your name>' git config --global user email '<your email>' Project management git add <filename> (adds a change in the working directory to the staging area) git add *.<filetype> (adds changes in the files with specified filetype) git add . (add all changes in the working directory to the staging area) git rm --cached <filename> (remove a file from git repository) git commit -m "<your message>" (save changes in the local repository) git branch <branch name>  (create a branch) git checkout <branch name> (switch to specified branch) git merge <branch name> (merge specified branch...

Open Source Computer Science Degree is not a new concept. It's been in the online learning community for a while. The most prominent resources for this concept degree are,  OSSU  and  ForrestKnight . From these two, OSSU provides a very comprehensive roadmap. They also have created a community that helps the progression through the roadmap. Inspired by them I have decided to create my own version of this using only Coursera as the content provider. This is also something I'm trying myself at the moment (to some extent). What I have done here is quite simple. I have studied the OSSU and ForrestKnight degree roadmaps and I'm substituting the courses in them with relevant courses (preferably I will focus on specializations) in Coursera. There are a few reasons for focusing on Coursera, There is an option for university students to take courses their university has sponsored for free. (My reason) -  Link There is a  Coursera+  option which just has a monthly c...

credits: pixabay.com Here is a list of hobbies that I find interesting and possibly interesting for science and maths enthusiasts. I will update this post whenever I find something interesting. Note that I personally may not be engaged in these hobbies but I may have researched on them and I will mention resources whenever possible. Amateur Radio Astronomy - This is a quite serious thing for some people and I must acknowledge their dedication.  The Thought Emporium YouTube video   rtl-sdr.com radio-astronomy.org    Origami - Specially for maths people. Ted Talk by Robert Lang Another video from WIRED with Robert Lang TreeMaker - The software   Electronics, Robotics, IoT and etc. Resources are everywhere. Just search. Maths puzzles   https://ruwix.com/

I'm writing my thesis for about two weeks now and I haven't written a comprehensive literature review for my research up to that point. However, I have collected and summarized many research papers on my research area and have written some reviews based on them. So I decided to write a comprehensive literature review for my thesis as well as a base to write a journal paper. To understand the basics and the required guidelines to produce a good literature review, I searched the internet and come across many resources that I found to be very useful so far. I would like to share the resources that I found and I will update the post if I find new resources as well. NC State University - Literature Reviews: An Overview for Graduate Students The University of Queensland - Literature reviews Ashford University - Writing a Literature Review Monash University - Introduction to literature reviews PLOS Journal - Ten Simple Rules for Writing a Literature Review University of W...

The picture was taken from Pixabay.com - I think I'm trying to say that I finally started it. One of the research areas that I'm very fascinated with is Microgrid research. there are several reasons for this long fascination. I heard about them in my final year group project in uni (UoM, Sri Lanka) and who can forget their FYP? (However, I was a lazy undergraduate and didn't do much about it) They appear to solve many problems in the modern electric grid with high penetration of renewable energy sources. Their islanded operation can provide electricity even in grid outages, which is both fascinating and helpful to critical loads. (eg. Hospitals, Water supply,..) (Keep in mind that above is not the full potential of microgrids and I will compile a post on the full potential of microgrids in the future) I'm currently working on microgrid research in UoM. The current research is "Design and development of a new Reconfigurable Architecture for Solar Ph...