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Multilevel Inverter Based UPQC for Power Quality Improvement
Abstract
The main aim of this project is multilevel inverter associated UPQC for power quality enhancement. UPQC having 2 controllers namely series controller&another one is shunt controller. These controllers are associated with the DC link capacitor. Dc voltage is produced by PV source. In this project multilevel inverters are used in series&shunt controller for producing accurate sinusoidal wave shape. The series controller is connected at grid side for grid power quality improvement. In this project grid side voltage sag/swell reduced by series controller. The shunt controller regulate the reactive power compensation as well as reduced the load current harmonics. These controllers are regulated by expending synchronous reference frame theory (SRF). The advantages of proposed system is high efficiency&enrichment of quality power. The simulated results of proposed system is verified by MATLAB/Simulink environment.
A bus bar in an electrical power distribution refers to bulky segments of copper or aluminum that carry out electricity within a switchboard, distribution panel and substation. In this task, bus bar can be protected from the over current condition. Mechanical instruments disappointments have numerous causes and one of the primary causes is over burden. The crucial of the distribution transformer is anticipated to work at assured particular current, if that current passing through that feeder is more than the rated then instantaneously the feeder may damaged because of over load, through this projected work we are departing to defend the bus bar from heavy load condition. In this work, more loads are applied to the circuit to produce high current. So that the current will be increased. At whatever point the over current happened the circuit will be tripped. Here, one relay is utilized which will control through our microcontroller to trip the circuit. Whenever over load is occurred relay will trip the whole circuit and buzzer will on control through our microcontroller to indicate over load. Whenever over load occurs micro controller automatically triggers the load to OFF and data will alert through IoT.
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