Title :
A nonlinear control algorithm of Li-ion battery substation for DC distributed system
Author :
Sikkabut, S. ; Mungporn, P. ; Poonnoi, N. ; Phattanasak, M. ; Thounthong, P. ; Tricoli, P. ; Nahid-Mobarakeh, B. ; Pierfederici, S. ; Davat, B. ; Piegari, L.
Author_Institution :
Thai-French Innovation Inst., King Mongkut´s Univ. of Technol. North Bangkok, Bangkok, Thailand
Abstract :
This paper presents a control algorithm for dc-bus stabilization in weak network that uses a Li-ion battery as the battery substation. The battery modules connected with 2-quadrant 4-phase parallel converter with interleaved technique. In this paper, a nonlinear control algorithm based on the flatness properties of the system is proposed. Using the flatness property, we propose simple solutions to dc distributed system and stabilization problems. A hardware system is implemented in laboratory. The prototype small-scale power plant is composed of a dc main source (80 V, 500 W), and a Li-ion battery module (11.6 Ah, 24 V). Experimental results substantiate the excellent control scheme during load cycles.
Keywords :
battery storage plants; distribution networks; nonlinear control systems; power convertors; power system stability; secondary cells; substations; DC distributed system; DC main source; DC-bus stabilization; battery modules; control scheme; flatness properties; hardware system; interleaved technique; lithium-ion battery substation; load cycles; nonlinear control algorithm; power 500 W; small-scale power plant; stabilization problems; two-quadrant four-phase parallel converter; voltage 24 V; voltage 80 V; Batteries; Educational institutions; Heuristic algorithms; Laboratories; Power electronics; Substations; Voltage control; Li-ion battery; dc distributed; flatness control; nonlinear; stabilization;
Conference_Titel :
Power Electronics, Electrical Drives, Automation and Motion (SPEEDAM), 2014 International Symposium on
Conference_Location :
Ischia
DOI :
10.1109/SPEEDAM.2014.6872016
