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In this study, an induction heating (IH) application is carried out by transferring the maximum power extracted from photovoltaic (PV) panels to the stainless steel with the designed regular and irregular 32 pulse density modulation (PDM) controlled series resonant inverter. The main objective of this study is to analyse the changes in the system due to regular and irregular PDM patterns. Maximum power point tracker (MPPT) is used to control the output power at different solar irradiation values with varying PDM patterns. Regular and irregular PDM control methods are compared in terms of MPPT efficiency, cost, algorithm complexity, logic control structure and current/voltage stresses of the power switches. Zero current switching (ZCS) conditions are provided by using phase locked loop (PLL) technique at all power points of the PV system. The appropriate switching conditions are tracked continuously at resonant frequency, and therefore soft switching is realised. Perturb and observe (P&O) algorithm is used with the aim of tracking the maximum power in PV panels and high tracking efficiency is obtained with PDM-controlled P&O MPPT algorithm. ATMEL328P-AU microcontroller is used to control the inverter in the system.This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

In this study, the design of the components in the system was carried out in order to meet the energy of a stand-alone farm house in Bilecik city only by a photovoltaic (PV) system. Firstly, the loads to be used in the farm house have been determined and it has been calculated that the average energy consumption of the house is 5.58 kWh per day. It was determined that it would be appropriate to use OPzS batteries in the system in order not to have power outage even if there is no solar radiation for 4 days. Under these conditions, it was estimated that 28 batteries 2 OPzS 100 model and 12 V values would be needed in the system. Since the farm house is thought to be used during the whole year, PV panels are estimated to be located at the tilt angle of 40° on the roof, which is the latitude of the city. It has been calculated that 12 PV panels with Per Light 100 Wp PLM-100P/12 model should be used for the system. It has been proposed to use a central inverter system for the design and it is calculated that the inverter should be at least 6 kW power.