Thermal load management: Experimental investigation of voltage variation effect on loads behavior

Load power and energy demand management is interesting for both end users and Distributed System Operators (DSOs). The electric power principle for linear loads gives less power consumption with lower supply voltage. Active power behavior has been analyzed in literature but often the load reactive power and energy absorption are not analyzed. Moreover, nowadays the development in power electronics is changing the load behavior significantly. This article provides experimental investigation and analysis on technologic electrical thermal loads with the purpose of understanding the electrical behavior of these loads from power and energy point of view by voltage variation. Dynamic Voltage Conditioner (DVC) has been used in order to provide different voltage levels at load terminals. The study will analyze the voltage variation effects on load active power, reactive power and energy consumption behavior.