EDUCATIONAL PERSPECTIVE ON THE DESIGN AND IMPLEMENTATION OF A 2KVA MODIFIED SINE WAVE POWER INVERTER

Icheke, L. E.D
Publisher: A MULTI-DISCIPLINARY JOURNAL OF THE FEDERAL COLLEGE OF EDUCATION (TECHNICAL), UMUNZE, ANAMBRA STATE {"id":6,"volume_name":"Vol 5 Number 2","created_at":null,"updated_at":null,"url":"volumes\/5.jpg"} (2): 1118-0315: doi: January 2017 Published in 2017

This paper presents the design and implementation of a 2kVA modified sine wave power inverter. The inverter converts the direct current (DC) to an alternating current (AC) with approximately 120 electrical degree phase angle. The system produces a single phase modified sine wave output voltage from the direct current (DC) battery supply. Power semiconductors and power transformer are utilized for the conversion of the direct current (DC) to an alternating current (AC) for a single phase model. The output voltage magnitude and the switching frequency of the power transistor are controlled using digital integrated circuit (IC). The system has a change over unit for the utility power and inverter power supply. The rated power output of the system is 2kVA, the output voltage is 220V (AC) and the frequency is 50Hz. The inverter functions effectively between 12.5V (DC) to 10.5V (DC) battery supply voltage. The inverter can be used as standalone energy source for domestic applications and to power single phase motor drivers. A fully charged 75 A-H (Ampere-Hour) battery can be utilized by the inverter to power a 2000 watts load for a period of six (6) hours

Download