Level doubling network and ripple correlation control MPPT algorithm for grid-connected photovoltaic systems. Doctoral thesis accepted by the University of Bologna, Bologna, Italy

Electromagnetic transients of power electronics systems

Studi pengaruh kecepatan angin dan regulasi frekuensi primer terhadap kestabilan frekuensi daya keluaran PLTB yang terintegrasi dengan sistem tenaga listrik sulbagsel = Study of the effect of wind speed and primary frequency regulation on frequency stability of the sulbagsel power system with integration of wind power plants.

Evaluation of Conservation Voltage Reduction (CVR) for Control of Household Loads Supplied by Renewable Energy Sources = Evaluasi Conservation Voltage Reduction (CVR) untuk Pengendalian Beban Rumah Tangga yang Disuplai oleh Sumber Energi Terbarukan

Kajian Hukum Energi Baru Terbarukan Sumber Daya Air Dalam Pembangunan PLTA Yang Kepemilikan Mayoritasnya Swasta (Studi Kasus Pembangunan PLTA Batang Toru Kabupaten Tapanuli Selatan = Legal Studies on New Renewable Energy Water Resources in the Development of Hydropower Plants with Majority Private Ownership (Case Study of the Development of the Batang Toru Hydropower Plant, South Tapanuli Regency)