DocumentCode :
3256921
Title :
Single-loop vs two-loop voltage and frequency control of isolated SEIG based RECS
Author :
Chatterjee, J.K. ; Chauhan, Priyesh J.
Author_Institution :
Dept. of Electr. Eng., Indian Inst. of Technol. Delhi, New Delhi, India
fYear :
2011
fDate :
28-30 Dec. 2011
Firstpage :
1
Lastpage :
6
Abstract :
Present investigation deals with the comparison of performance of a Generalized Impedance Controller (GIC) based 3-phase self excited induction generator (SEIG) terminal voltage and frequency regulator, having single and two-loop control, in an isolated wind/microhydro type renewable energy conversion system (RECS). Where, GIC is a PWM voltage source converter with dc-bus battery, having controlled four-quadrant equivalent impedance. Amplitude and frequency regulation of SEIG terminal voltage under source and load perturbations, are accomplished by controlling modulation index m of the GIC and phase angle δ of fundamental component of GIC terminal voltage with respect to SEIG terminal voltage. These m and δ control are achieved by operating the GIC in closed loop with, (i) only voltage feedback, and (ii) voltage and frequency feedbacks. The PI-controllers in both the schemes are designed for non-fragile system operation with optimized transient response of both amplitude and frequency of SEIG terminal voltage. The integrated SEIG-GIC closed loop system with single and two-loop control schemes are modeled and simulated in MATLAB/Simulink to highlight the superior performance of single-loop control scheme in transient and steady states.
Keywords :
PI control; PWM power convertors; asynchronous generators; closed loop systems; frequency control; hydroelectric power; machine control; power generation control; voltage control; wind power; 3-phase self excited induction generator; MATLAB-Simulink simulation; PI controllers; PWM voltage source converter; dc-bus battery; four-quadrant equivalent impedance; frequency control; frequency regulation; generalized impedance controller; isolated SEIG based RECS; isolated wind/microhydro type renewable energy conversion system; modulation index; non-fragile system operation; optimized transient response; two-loop voltage control; Frequency control; Frequency modulation; Steady-state; Time frequency analysis; Transient analysis; Voltage control; Generalized impedance controller; isolated generation; renewable energy; self excited induction generator; transient and steady state response; voltage and frequency control;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Energy, Automation, and Signal (ICEAS), 2011 International Conference on
Conference_Location :
Bhubaneswar, Odisha
Print_ISBN :
978-1-4673-0137-4
Type :
conf
DOI :
10.1109/ICEAS.2011.6147090
Filename :
6147090
Link To Document :
بازگشت