Analysis of Converter Blocks Based on Feedback System by Using MATLAB Software

Solar, wind and hydro are renewable energy sources are seen the main energy resources. However the efficiency and the performance of renewable energy system are still under development. The control structure of the converter blocks as an important section for energy conversion and transmission should be improved to compare the requirements of the load. In this paper solar and wind energy is taken as the renewable resources, the hybridization of the solar and wind power systems have the ability to give more output. In this paper tells about the simulation and implementation of converter connected to an induction motor load. Here a closed loop DC-DC buck-boost converter is used to design the circuit. Modified feedback technique is going to be used in this converter system to rectify the output based on the load requirements. Firstly the control structure of the load side inverter is analyzed. The speed variation will be sensed and the PWM produces signals are given as a feed back to the system. The simulation tools are the easiest way to analyze the circuits. The MATLAB simulation tool is used to analyze the overall circuit and designing a modified one. The modified feedback system is controlled by PID controller. This can be able to maintain the supply constantly to the induction motor. Based on the modified feedback the overall efficiency of the system will be increased.