International OPEN ACCESS Journal Of Modern Engineering Research (IJMER) | IJMER | ISSN: 2249–6645 | www.ijmer.com | Vol. 4 | Iss. 5| May. 2014 | 37 | Modeling Of Converter “Single Phase to Three Phase by Using Single Phase Supply” Manikant Kumar 1 , Er. Sudhanshu Tripathi 2 1 (PG student, Electrical Department, SHIATS-DU, Allahabad-211007) 2 (Faculty, Electrical Department, SHIATS-DU, Allahabad-211007) I. INTRODUCTION A wide variety of commercial and industrial electrical equipment requires three-phase power. Electric utilities do not install three-phase power as a matter of course because it costs significantly more than single- phase installation. As an alternative to utility installed three-phase, rotary phase converters, static phase converters and phase converting variable frequency drive have been used for decades to generate three –phase power from a single-phase source. 1. Single- phase –In electrical engineering, single-phase electric power refers to the distribution of alternating current electric power .unison system in which all the voltages of the supply vary in unison. Single-phase distribution is used when loads are mostly lighting and heating, with few large electric motors. A single-phase supply connected to an alternating current electric motor does not produce a revolving magnetic field. Single- phase motors need additional circuits for starting, and such motors are uncommon above 10 or 20 KW in rating. 2. Three-phase- In electrical engineering, three-phase electric power system have at least three conductors carrying alternating current voltages that are offset in time by one-third of the period. A three-phase system may be arranged in delta (∆) or star ( ). A delta system arrangement only provides one voltage magnitude, however it has a greater redundancy as it may continue to operate normally with one of the three supply windings offline, albeit at 57.7% of total capacity. Harmonic currents in the neutral may become very large if non linear loads are connected. Power electronics is a very interesting technology to produce a circuit which is very small size. In olden days people were using a very complicated circuit, which was bulky, costly and low efficient. But power electronics has made it less weight, low cost and produce high efficiency .Embedded system is used along with power electronics to reduce the component size ,easy to handle but it require a high maintenance for the circuit. Power electronic system is virtually in every electronics device. For example AC/DC converters (rectifiers) are used every time an electronic device is connected to television and computer. Inverter is broadly classified into two types namely voltage source inverter and current source inverter. Converting a single phase to three phase power supply uses semiconductor devices such as BJT (full form). DC/AC converter are used primarily in UPS (full form) or emergency light .During blackout time the AC will be used to produce AC electricity at its output to power up the appliances IGT (full form) is a current controlled device which operates only at low frequencies. The main disadvantages of using BJT is that high switching losses but lower conduction loss. II. PROPOSED MODEL “Single phase to three phase converter using BJT bridge” is our proposed model which uses an advanced technique such as converter to generate DC current .this paper represented single phase AC supply to converted three phase . Abstract: In Industrial application, two form of Electrical Energy is used. Direct current (DC) form and Alternative current (AC) form. In this paper single phase to three phase converter model is developed with the help of SIMULINK tool box of the MATLAB software. First of all single phase AC power is converted into DC power using diode rectifier bridge after this DC power is converted into three phase AC power with the help of three arms IGBT Inverter bridge. After the three phase conversion Three phase Induction Motor is run. They are ideal for future workshops, small industry, large building. Using the simulation result output of the model can be varied as per requirement of the applications. Keywords: AC source, two arm universal bridge, Transformer, inverter, PWM generator