Open AccessAdaptive hysteresis band current control of grid connected PV inverter
Author(s) -
R. Sankar,
Appalabathula Venkatesh,
K. K. Deepika
Publication year - 2021
Publication title -
international journal of power electronics and drive systems/international journal of electrical and computer engineering
Language(s) - English
Resource type - Journals
eISSN - 2722-2578
pISSN - 2722-256X
DOI - 10.11591/ijece.v11i4.pp2856-2863
Subject(s) - inverter , control theory (sociology) , controller (irrigation) , computer science , grid , voltage , matlab , hysteresis , bang–bang control , current (fluid) , electrical engineering , control (management) , engineering , physics , optimal control , mathematics , mathematical optimization , agronomy , geometry , quantum mechanics , artificial intelligence , biology , operating system
In this paper, adaptive hysteresis band current controller is implemented to control the current injected into the grid. Initially it was implemented by B.K Bose for control of the machine drive. Now it is implemented for the grid connected PV inverter, to control the current injected into Grid. It is well suitable for the distribution generation. The adaptive hysteresis band controller changes the bandwidth based on the modulating frequency, supply voltage, input DC voltage and slope of the reference current. Consequently, the controller generates pulses to the inverter. It is advantageous over the conventional hysteresis controller, as the switching frequency is maintained almost constant. Thereby quality of grid current is also improved. It is verified in time domain analysis of simulation using MATLAB.