PV and Fuel Cell Hybrid System Connected to grid with Data Based MPPT Technique

This paper presents a control scheme which controls in which PV (Photovoltaic) and Fuel cell system are connected through a DC bus. In order to achieve maximum utilization of distribution generation, power supplied to load for day and night through renewable resources. PV power availability is depends upon the solar irradiation so that it becomes important to extract maximum possible power from PV system. To do that data based Maximum power point tracking (MPPT). Control technique is implemented in such a manner that system produce approximate constant power to local load and grid. Reactive power flow is also controlled from the PV and Fuel cell system to grid connected load as per the requirement of load or grid. PV and Fuel cell system can be connected to the grid using single stage or two stage method. In this paper we use single stage method and transformer less to reduce the cost and losses of the system. As we are injecting reactive power to grid even when there is no fuel cell power. To inject reactive power, system extracts active power from the grid even when there is no power from PV and fuel cell system. Therefore the converter has to work continuously with grid. This forces to use single stage system. PV and Fuel cell simulation is done using the basic equation. Passive filter is used to reduce the harmonic produced by inverter. Keywords— PV, FC, harmonic, bus and power.