A novel fault-tolerant DC-DC Super lift luo converter Azaharahmed Mohammed, Gudavalli Madhavi, Vemulapalli Harika, G Veeranna, VNSR Murthy Engineering Research Express, 2025 In recent years, the trend in converter technology has been towards higher efficiency. This trend often involves using advanced semiconductor materials and better control algorithms to mitigate potential failure modes. Despite these advancements, converter failures can still occur due to various factors including design flaws, manufacturing defects, inadequate cooling, improper operation, and external environmental conditions. This paper provides the novel approach to enhance fault tolerance in DC-DC converter systems by introducing parallel switches that activate in response to faults occurring in primary switches. It Examine the effectiveness of this fault-tolerant design in three popular converter configurations like Boost converter, Luo converter, and Super lift Luo converter with a focus on achieving the best output voltage characteristics. The Super Lift Luo Converter (SLLC) is a type of DC/DC converter that combines the advantages of a conventional boost converter and a Luo converter. It offers features such as high voltage gain, reduced switch stress, and low input current ripple. The output voltage quality is a critical aspect in power electronics applications, influencing the stability and reliability of the power supply. Theoretical analysis, simulation, experimental validation and comparative assessment for Luo and super lift Luo converter are done. The objective is to maintain consistent output voltage despite faults occurring in primary switches, thereby ensuring system reliability and stability for renewable and EV applications. As the electrical vehicles mostly deals with 48 V these converters are predominant in providing this value of supply.
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PROTOTYPE FOR AUTOMATIC FIRE DETECTION AND EXTINGUISHING ROBO Harika Vemulapalli, Madhavi Gudavalli, Mohammed Azaharahmed Ecs Transactions, 2022 Fire mishaps are common nowadays, and at times it has become very challenging for firefighters to save personage entities. It became hard for a human being too constant supervision during accidental fire situations. Consequently, in such cases, a firefighting robot is handpicked. Particular robots are most fruitful in industries where the odds of unintentional fires are severe. Moreover, the initiated vehicle can recognize the existence of fire and extinguish it involuntarily by pumping out water. Temperature sensors and smoke sensors are used for the detection of fire. It contains a motor-driver module that controls the gesture of the robot. A relay circuit is handed down to direct the pump, and it automatically sprinkles water when the fire is noticed. The proposed robot also has an LCD that displays the temperature, smoke, and fire rate.
Voltage stability analysis using continuation power flow under contingency Journal of Theoretical and Applied Information Technology, 2021
