Daru Tri Nugroho
Program Studi Teknik Elektro, Universitas Jenderal Soedirman, Purwokerto Jl. Mayjend Sungkono KM 5 Blater Purbalingga 53371

Published : 9 Documents
Articles

Found 2 Documents
Search
Journal : International Journal of Electrical and Computer Engineering (IJECE)

PARALLEL OPERATION OF CURRENT-SOURCE INVERTER FOR LOW-VOLTAGE HIGH-CURRENT GRID-CONNECTED PHOTOVOLTAIC SYSTEM Suroso, Suroso; Nugroho, Daru Tri; Amran, Amran; Noguchi, Toshihiko
International Journal of Electrical and Computer Engineering (IJECE) Vol 9, No 4: August 2019 (Part I)
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1317.923 KB) | DOI: 10.11591/ijece.v9i4.pp2220-2229

Abstract

Solar energy is very potential to be developed in a tropical country such as in Indonesia. This energy source is eco-friendly because it can eliminate air pollution such as caused by conventional fossil fuels. This research article presents analysis results of a novel grid-connected photovoltaic system using low-voltage high-current system. The electrical energy produced by the photovoltaic system was sent into the electrical power grid using two or more H-bridge current source inverters operated in parallel. The proposed system is very suitable for large size photovoltaic system because of its some merits. The inverter circuits work generating sinusoidal output currents and controlling the power delivered into the grid. The test results of the new system showed that the system worked properly as interface between photovoltaic system and the electrical grid delivering high ac current with low harmonic distortion.
NEW DEAD-TIME COMPENSATION METHOD OF POWER INVERTER USING CARRIER BASED SINUSOIDAL PULSE-WIDTH MODULATION Suroso, Suroso; Nugroho, Daru Tri; Noguchi, Toshihiko
International Journal of Electrical and Computer Engineering (IJECE) Vol 8, No 6: December 2018 (Part II)
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1180.325 KB) | DOI: 10.11591/ijece.v8i6.pp4880-4891

Abstract

A new dead-time compensation method of power inverter circuits is suggested and presented in this paper. The proposed method utilizes carrier based sinusoidal pulse width modulation technique to produce driving signals of the inverter power switches with dead-time correction capability. The proposed method able to eliminate dead-time effects such as reducing the waveform distortion of the inverter output current, and increasing the fundamental component amplitude of output current. An analysis of the proposed method is presented. Some computer simulations were carried out to investigate the principle operation, and to test performance of the new method. The developed method was validated through experimental test of H-bridge voltage source inverter circuits. The data obtained from the computer simulation and prototype experiments have confirmed that that the proposed method worked well compensating the dead-time in the voltage source power inverter circuits.