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This paper presents a new control technique to regulate the capacitor voltage in cascaded multilevel inverters. Without requiring transformers, the scheme proposed here allows the use of a single dc power source with the remaining n − 1 dc sources being capacitors. This paper focuses mainly to achieve an effective capacitor voltage regulation with the Phase shift modulation and energy storage using Ultra-capacitors as they have higher power density, higher efficiency, longer life and greater cycling capability in cascaded multilevel inverters. It shows hope to reduce the voltage ripple of the capacitors, which leads to higher power conversion efficiency with equal power distribution, reduces the initial cost, and complexity hence it is apt for industrial applications. In this paper a 5-level cascaded multilevel inverter with induction motor drive is considered. Finally, the simulation results validate the concept of this topology. KEYWORDS:Hybrid cascaded multilevel converter, Energy storage, power distribution, Ultra-capacitors, motor drive. I.INTRODUCTIONNumerous industrial applications have begun to require high power apparatus in recent years. Multilevel inverters have become more popular over the years in industrial propel applications and high power applications with the promise of less disturbances, smaller common-mode voltage, the possibility to function at lower switching frequencies, and good potential for further developments than ordinary two-level inverters. In multilevel inverters the Cascaded H-Bridge (CHB) configuration has recently become very popular in high-power AC supplies and adjustable-speed drive applications. A cascade multilevel inverter consists of a series of H-bridge (single-phase full bridge) inverter units in each of its three phases. The cascaded multilevel inverter was invented for use in medium to high power applications. The traditional cascaded multilevel inverter interfaces DC energy sources. The advantages of cascaded multilevel inverters are:  Requires less number of components per level.  Modularized structure without clamping components.  Simple voltage balancing modulation.Hybrid cascaded multilevel converters provide an attractive option for high power and high performance motor drive applications. Traditional H-bridge HCMC use multiple dc sources, but recently, energy storage elements have been used to replace some of the dc sources, mainly to provide reactive power compensation. Most of the research that has been conducted on the use of energy storage for motor drive applications is based on the use of converter for interface between the ultra-capacitors (UC) and the induction motor. In most applications, a power converter needs to transfer real power from ac to dc (rectifier operation) or dc to ac (inverter operation). When operating at unity power factor, the charging time for rectifier operation (or discharging time for inverter operation) for each capacitor is different. Such a capacitor charging profile repeats every half cycle, and the result is unb...

This inventive firefighting robotic system detects fire and turn off them. Thereby fire accidents take place from time to time; there are many backstops to it. Apart from many things a technology called Robotics is invented to replace humans against robots to a ceasefire. In this technology, the robot is power-driven by an Arduino Uno development board which resides an HC-SR04 sensor that is mounted on a servo motor and helps in the detection of obstacles and finds the direction of fire. It also includes w an Optical Flame sensor to get aware of fire and arranged with a water tank that sprays water to end fire. The water is sprayed in motion to cover the all-out area.