Harmonics elimination of seven phase uncontrolled rectifiers driving dc motor

Conventional electrical power systems with three phase have great application in industrial and home appliances. An increasing of power demand by consumers leads to thinking to use different type of power generation units like solar, wind, thermal, etc. As a renewable energy sources, that can be use individually or connected with main network, this idea driven engineers to create a modern electrical system with phases more than three which may be five , six , seven ,nine and more . Using this type of schematic modes help to achieve better performance of system in transmitting power, reliability and stability. Despite of these benefits a generation of harmonics problem appears in network related by using different types of converters like ac-dc (rectifiers) or dc-ac (inverters). To overcome this problem a design of filter introduce to eliminate harmonics. In a paper mat lab R2020b is used to simulate, seven phase uncontrolled rectifier driving dc shunt motor also, filter is designed and connected with dc -drive . This research present an analysis of an input/output voltage, current waveforms with THD value of an input current before and after filter connected

Keywords:

multiphase-uncontrolled rectifier, THD- modern power system, seven phase, filters, dc drive power electronics,

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