Das, S.Pan, I.Halder, K.Das, S.Gupta, A.2013-06-262013-06-262013Applied Mathematical Modelling, 2013. Vol. 36 (6): pp. 4253-4268http://hdl.handle.net/123456789/76574444 bytestext/htmlenfractional calculusintegral performance indexLinear Quadratic Regulator (LQR)optimal controlPID controller tuningLQR based improved discrete PID controller design via optimum selection of weighting matrices using fractional order integral performance indexArticle