Open AccessDesign and Implementation of Z-Source Inverter by Simple Boost Control Technique for Laboratory Scale Micro-Hydro Power Plant Application
Author(s) -
Rizki Mendung Ariefianto,
Rizky Ajie Aprilianto,
Heri Suryoatmojo,
Suwito Suwito
Publication year - 2021
Publication title -
jurnal teknik elektro/jurnal teknik elektro
Language(s) - English
Resource type - Journals
eISSN - 2549-1571
pISSN - 1411-0059
DOI - 10.15294/jte.v13i2.31884
Subject(s) - total harmonic distortion , inverter , waveform , duty cycle , z source inverter , voltage , electronic engineering , power (physics) , electrical engineering , engineering , control theory (sociology) , computer science , control (management) , physics , quantum mechanics , artificial intelligence
In a power plant such as micro-hydropower (MHP), an induction generator (IG) is usually employed to produce electrical power. Therefore, an inverter is needed to deliver it with high efficiency. Z-source inverter (ZSI) has been introduced as a topology with many advantages over conventional inverters. This research aims to investigate the performance of ZSI based simple boost control (SBC) in laboratory-scale MHP systems using a rewinding induction generator. This research has been conducted both from simulations and experiments. Based on the result, the waveform characteristic and value of ZSI are close to the desired design. A shoot-through duty ratio of 17% can reach 60 Vrms output voltage, and this condition has a conversion ratio of about 2.05 times. Also, SBC can significantly reduce the Total Harmonic Distortion (THD). ZSI efficiency has a value of 84.78% at 50% of rating load 100 W and an average value of 80%. Compared to the previous study, the proposed design has more economical with the same component for the higher rating power. Moreover, it has a smoother and entire output waveform of the voltage.