© November 2021| IJIRT | Volume 8 Issue 6 | ISSN: 2349-6002 IJIRT 153156 INTERNATIONAL JOURNAL OF INNOVATIVE RESEARCH IN TECHNOLOGY 1 A Novel Topology of Single Phase to Three Phase Power Converter with Active Input Current Shaping N. Tejaram 1 , Dr. CH. Chengaiah 2 1 Student of Master of Technology, Department of Electrical & Electronics Engineering, Sri Venkateswara University College of Engineering, S V University, Tirupati, India 2 Professor, Department of Electrical & Electronics Engineering, Sri Venkateswara University College of Engineering, S V University, Tirupati, India Abstract - This paper presents a converter topology for driving a three-phase motor load from a single-phase supply. It consists of a rectifier and an inverter circuit. The front-end rectifier is to provide a DC link voltage through a split capacitor. The two-leg inverter converts this DC link voltage into 3 phase supply. This converter can run a three-phase Induction motor which is much more efficient compared to a single-phase motor. In this paper, two closed-loop controllers are employed to achieve balanced output voltage. Among those two closed-loop controllers, one is for maintaining the DC link voltage constant and, the other is for inverter output. Therefore, the single-phase to three-phase converter brings the controllable output voltage as in a six-switch standard three-phase inverter. The front-end rectifier has the capability of active input current shaping. The designed converter model is simulated by using MATLAB Simulink software. The Performance of the designed converter employing various controllers like PI and Fuzzy Logic is assessed. Index Terms - Front-end rectifier, Split-Capacitor, DC- Link voltage, Two-leg Inverter, Three-phase motor. 1.INTRODUCTION Access to energy is a cornerstone for development and essential for a better quality of life. When this access doesn’t exist or is very poor, it has negative impacts on everything from education, health, employment, and irrigation - touching all aspects of life and livelihood. The single-phase power has been alternative for rural areas or remote areas. Most of the remote areas have access to single phase power. On the other hand, three-phase electric motors have several advantages compared to single-phase electric motors. The performance of three-phase motor drive systems is superior when compared with single-phase motor drives. The three-phase motors are more efficient, low cost, and less output torque ripples [8]. Therefore, a bridge capable of connecting single-phase power to three-phase appliances is required. In the past, single-phase to three-phase conversion systems were made possible by the connection of passive elements (capacitors and reactors) with autotransformer converters [4]. Such kind of system presents well-known disadvantages and limitations. The power electronics with silicon-controlled rectifiers began emerging in the market from the early 1960s. A breakthrough in the field of power electronics came up with the invention of MOSFET and IGBT. There also been the great innovations in circuit topology in the field of power conversion systems was also identified [2]. 2. CONVENTIONAL SINGLE PHASE TO THREE PHASE CONVERTERS The conventional topology includes the converter, which can either be full bridge type, or half bridge type, with a DC link capacitor in cascade with a three- phase inverter [9]. In the conventional converters the AC-to-DC conversion is independent from the DC-to- AC conversion. The converter connected to the supply is called the lineside converter and the one connected to the load is the load-side converter. Therefore, in the conventional topologies the control of the line and the load side converters are independent. A. Conventional full bridge topology The conventional topology for single-phase to three- phase power converter shown in figure 1 employs a diode bridge rectifier and a regular six switch PWM inverter. The full bridge topology has four switches for the AC to DC conversion.