Control Strategies of Power and Power Factor using PID Controller in Hybrid Energy System

Now a days maximum rise of power can be done by the usage of wind ,solar and diesel system. To get reliable electricity supply and to control the interruption and contingency hybrid power systems are used. The hybrid systems are more advantageous because both the wind and solar are renewable energies which is more convenient to the environment. The work presented in this paper consists of a combination of a wind system ,a PV system and an AC load with a back up of battery source and a diesel generator. Inorder to reduce the transmission cost this system is applicable and it can be used in remote areas. PID controller with PLL technique is used to maintain the power factor constant even when one of the source is in OFF condition. The ON/OFF condition is given manually on the input side and accordingly the energy sources will produce the voltage/current output thereby power factor is maintained constant with the irradiance and temperature. One of the advantage of this system avoids penalty by maintaining the power factor constant.