Title :
Current mode control of Dynamic Voltage restorer for power quality improvement in distribution system
Author :
Jayaprakash, P. ; Singh, Bhim ; Kothari, D.P.
Author_Institution :
Center for Energy Studies, Indian Inst. of Technol., Delhi
Abstract :
In this paper, a new control strategy based on current mode control for dynamic voltage restorer (DVR) is proposed to mitigate the power quality problems in the supply voltage. The DVR is controlled indirectly by controlling the supply current. The reference supply currents are estimated using the sensed load terminal voltages and the dc bus voltage of DVR. The control scheme is based on synchronous reference frame theory (SRFT) for the operation of a capacitor supported DVR. The control strategy is verified through extensive simulation studies using MATLAB with its Simulink and power system blockset (PSB) toolboxes to demonstrate the improved performance of DVR.
Keywords :
current-mode circuits; electric current control; power distribution control; power supply quality; power system restoration; DVR; MATLAB; SRFT; Simulink; current mode control; dc bus voltage; distribution system; dynamic voltage restorer; load terminal voltage; power quality improvement; power system blockset toolbox; synchronous reference frame theory; Capacitors; Control systems; Current supplies; MATLAB; Power quality; Power system control; Power system restoration; Power system simulation; Power systems; Voltage control; DVR; Power Quality; current control; custom power devices;
Conference_Titel :
Power and Energy Conference, 2008. PECon 2008. IEEE 2nd International
Conference_Location :
Johor Bahru
Print_ISBN :
978-1-4244-2404-7
Electronic_ISBN :
978-1-4244-2405-4
DOI :
10.1109/PECON.2008.4762487
