Title :
Power management in dc-grid through two-input dc-dc converter
Author :
Veerachary, M. ; Tiwari, Vijay Kumar
Author_Institution :
Dept. of Electr. Eng., Indian Inst. of Technol. Delhi, New Delhi, India
Abstract :
A new two-input dc-dc converter for power management in dc grid is presented in this paper. This two-input converter is evolved through the combination of Boost and SEPIC converter. Steady-state and state-space analysis is performed to understand the performance of the proposed converter and then to design appropriate digital controllers for better power management. Using relative gain array theory the interactions among the control-loop is identified and then suitable pairing of controlling and controlled variable is determined. A 48 V, 150 Watt converter performance is analyzed, compared with the simulation and measurement observations for demonstrating the power management.
Keywords :
DC-DC power convertors; energy management systems; power grids; SEPIC converter; boost converter; control-loop; dc grid; digital controllers; power management; relative gain array theory; state-space analysis; two-input dc-dc converter; DC-DC power converters; Inductors; Mathematical model; Microwave integrated circuits; Switches; Transfer functions; Voltage control; DC-grid; Power Electronics; Power managent Two-input dc-dc converter;
Conference_Titel :
Power Systems Conference (NPSC), 2014 Eighteenth National
DOI :
10.1109/NPSC.2014.7103876
