An Efficient Analog Mppt Regulator for the Parallel Hybrid Photovoltaic – Diesel Systems

In this research article we have proposed a new analog MPPT regulator with the high efficiency DC-DC converter for the efficient photovoltaic diesel hybrid energy systems. The MPPT regulator provides the control signal for the DC-DC converter and tracks the maximum power from the solar panel. In which here a logic truth table based perturbation and observation (P & O) algorithm used for the maximum power point tracking (MPPT) and hybrid bridge resonant DC-DC converter is giving the constant output voltage equal to the DC bus voltage by changing the proper modes. The parallel configuration is selected for the energy transformation from the solar panel and diesel systems to the load. The design includes a bidirectional inverter along with a dc-dc converter capable of interfacing a battery bank with the AC bus. The goals of the project included the implementation of two modes of operation: a battery discharge mode where current is being fed into the AC bus and a battery charging mode in which current is pulled from the grid and put into the batteries. A secondary goal of the design was to ensure that the current being injected into AC bus was at or near unity power factor by utilizing a hysteresis current control method.