Browsing by Author "Rashel, Masud Rana"

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Non-iterative MPPT Method
(International Journal of Renewable Energy Research, 2020-06) Ahmed, Md Tofael; Rashel, Masud Rana; Faisal, Fahad; Tlemçani, Mouhaydine
The presented work is a contribution to maximum power point tracking problem with improved performance. The analysed and discussed method is based on mathematical model of a PV panel. The output power of PV panel is dependent on the load as well as the almost unpredictable behaviour of the environment. It has a non-linear implicit behaviour on the load due to the weather parameters dependency. Due to different conditions of PV curve, it may have several local maxima. Existing MPPT techniques are mainly based on iterative method which are more time consuming and complex in nature considering the sense of comparative techniques. The most used approach is based on P&O algorithm with gradient comparison. The proposed technique improves the performance on the basis of time and computational complexity. During a low changing environmental condition this method achieves good result on the way to reach the overall point for maximum power. Taking into account the data sheet values of the panel along with the usage of existing knowledge from the datasheets, this technique is possible to implement and flexible for digital signal processing platform. An experimental setup is also done to verify the accuracy, robustness and simplicity of the introduced algorithm. It is found that the proposed technique is less complex and can be coupled with other method too.
Self-powered IoT-Based Design for Multi-purpose Smart Poultry Farm
(Scopus, 2021) Akhund, Tajim Md. Niamat Ullah; Snigdha, Shouvik Roy; Reza, Md. Sumon; Newaz, Nishat Tasnim; Saifuzzaman, Mohd.; Rashel, Masud Rana
The purpose of the present work is to make an IoT-based smart poultry farm system. In this work, the power supply is developed using renewable energy mainly with solar energy and nano-hydro. This IoT-based module helps to develop the system’s productivity to ensure farm’s constant healthy condition. The proposed system collects several types of sensor data from the farm, such as temperature, humidity, toxic gas, water level, and moisture. Then the overall conditions will be controlled and be kept proper level with the developed system automatically. This system stores all the data in the central database for further analysis and getting knowledge from them also gives notifications. Optimal values for the power and health condition are obtained through the stored data. It helps to predict future conditions too. The electrical devices, doors, and dustbins of the farm can be controlled via IoT systems through mobile phones and online platforms from remote locations and from anywhere in the world with Internet connectivity.
Snappy Wheelchair
(Scopus, 2021) Akhund, Tajim Md. Niamat Ullah; Roy, Gunjon; Adhikary, Animesh; Alam, Md. Ashraful; Newaz, Nishat Tasnim; Rashel, Masud Rana; Yousuf, Mohammad Abu
According to the Bangladesh Bureau of Statistics 2011, almost 8 lac people are physically challenged. Among them, about 1.5 lac are from urban areas and the rest of the people from rural areas. Lots of challenged people need a wheelchair to move. This work results in a Snappy Wheelchair which will help physically challenged persons. It has two different controlling systems: first one joystick control system and second one flex sensor control system. Challenged person who can move only two fingers of their whole body also can control the Snappy Wheelchair with flex sensor control system. If anyone can move hand or single leg, they can control Snappy Wheelchair with joystick control system. If anyone wants twice controlling system at a time, he/she also can do it by pressing controlling switch to change one controlling system to another. Snappy Wheelchair can move forward, forward-left, forward-right, backward, backward-left, and backward-right. Snappy Wheelchair saves 50% among all of those automated and manual control wheelchairs which are available in the market. This is designed for those people with middle-class families who also can buy and it comes with helpful features. This work is already running in real-time environment.