3 papers
eess.SY2025
Entirely Transformerless Universal Direct-Injection Power-Flow Controller
Davood Keshavarzi, Alexander Koehler, Wolfram H. Wellssow +1
An increasing penetration of renewable energy resources, electric vehicle chargers, and energy storage systems into low-voltage power grids causes several power management and stab…
eess.SY2025
Partial-Power Flow Controller, Voltage Regulator, and Energy Router for Hybrid AC-DC Grids
Ehsan Asadi, Davood Keshavarzi, Alexander Koehler +2
The share of electronically converted power from renewable sources, loads, and storage is continuously growing in the low- and medium-voltage grids. These sources and loads typical…
eess.SY2025
A Highly Compact Direct-Injection Power-Flow Controller and Line-Voltage Regulator with Shared Magnetics and Partial-Power Conversion for Full-Power Control
Davood Keshavarzi, Alexander Koehler, Stefan M. Goetz
An increasing integration of photovoltaic units, electric vehicle chargers, heat pumps, and energy storage systems challenges low-voltage power grids and can cause voltage range vi…