A PV based autonomous microgrid performance analysis using PI and adaptive PI controller

摘要

A methodology based on MCPV (Microgrid connected Photovoltaic source) is presented in this paper , a DC-DC boost converter has also been implemented which helps in maintaining the DC-link voltage constant which is fed to the VSC's input. This paper work imparts a regiment strategy for the autonomous operation of Microgrid. An adaptive control stratagem is designed to procure maximal control of parameters. This adaption feature is oriented in the proposed controller by constantly varying the 'Kp' and 'Ki' values through the fuzzy controller. Disregarding the variation of load and its unpredictability the proposed controller is used to monopolize the parameters of the islanded network. Along with the fuzzy controller an additional Hysteresis Band Current Control (HBCC) is used which conduces towards the accuracy. The demonstration of the controller is legitimated through simulation studies, which offsets that the proposed controller provides a desired control of system parameters.