Title :
Fuzzy tuning of DC link controllers
Author :
Dash, P.K. ; Routray, Aurobinda ; Panda, S.K. ; Liew, A.C.
Author_Institution :
Dept. of Electr. Eng., Regional Eng. Coll., Rourkela, India
Abstract :
The paper introduces different types of fuzzy tuning methods for the controller parameters of the firing and extinction angle controller of an HVDC link. The test system, a point to point DC link, has been subjected to various small and large disturbances to examine the effectiveness of the proposed schemes. The current error and it´s derivative in case of rectifier and the gamma error and it´s derivative in case of the inverter are taken as the two principal signals to generate the change in the proportional and the integral gains according to a definite rule base. The results obtained have been compared graphically to prove the superiority of the proposed controllers
Keywords :
AC-DC power convertors; DC-AC power convertors; HVDC power transmission; control system analysis computing; control system synthesis; fuzzy control; invertors; power system analysis computing; power system control; rectifying circuits; software packages; two-term control; DC link controllers; EMTDC; HVDC link; Lyapunov fuzzy tuner; computer simulation; control design; current error; disturbances; extinction angle controller; firing angle controller; fuzzy tuning methods; gamma error; inverter; point to point DC link; rectifier; variable PI gains; Adaptive control; Control systems; Fuzzy control; Fuzzy logic; HVDC transmission; Inverters; Nonlinear control systems; Pi control; Rectifiers; Robust control;
Conference_Titel :
Energy Management and Power Delivery, 1995. Proceedings of EMPD '95., 1995 International Conference on
Print_ISBN :
0-7803-2981-3
DOI :
10.1109/EMPD.1995.500755
