Solar power unit is needed to increase the lesser voltage of solar panels to the voltage of the power grid; thus, converter should have an immense voltage gain with few switches otherwise it leads to system complexity. A three-port converter with enhanced topology for renewable power utilizations based on Z-Source network is suggested to fix these issues well. This Z-Source network symbolize the suggested converter's distinctive characteristics. One port of energy storage system for energy storage and supplying, and the last one is for loads. It is followed with new topology design and output analyses by MATLAB.

Analysis of Z-Source Based Single Stage Three-Port Converter for PV Renewable Energy System

Recently, power electronic devices are widely used in various applications; because of this the shape of input current is greatly affected. Generally, the boost PFC converter provides satisfactory operation for current shaping but for some high voltage application it is not appropriate. In this proposed work a hybrid transformer-less PFC boost converter is introduced. This converter will function in DCM i.e. discontinuous conduction mode to shape current waveform at the input and to obtain a high voltage at output without the need of operating at high duty ratio. The converter uses a minimum number of devices which will enhance the power density and minimizes the cost. Furthermore, power switches voltage stress is decreased leading to low power loss in power switches and therefore making the circuit more cost effective. Finally, simulated results confirm the theoretical analysis and the competence of the presented converter.

Performance Analysis of Hybrid Transformerless PFC boost Converter

With the advent of technology the use of power electronic devices rapidly increasing. Most of the power electronic devices require the rectifier i.e. AC- DC power converter for their working or charging purposes. Use of the power electronic converters introduces harmonics in the system thereby violating the limits of the international standard and also as the power level increases the harmonics of lower order which will deteriorates the power factor and thus affects the efficiency to a great extent. All these problems arises a great need of power factor correction. Here, in this paper analysis of different power factor correction topologies is done to understand their various techniques like passive and active and after that types of active power factor correction types are visualized and analyzed. The simulation result of the PFC buck and PFC boost converter communicate that both the techniques help to improvise the power factor.

Prerna Saxena

Papers

Analysis of Z-Source Based Single Stage Three-Port Converter for PV Renewable Energy System

Performance Analysis of Hybrid Transformerless PFC boost Converter

Analysis of Techniques for Correcting Power Factor of AC- DC Converters