Discussion of "Analysis of load frequency control performance assessment criteria" [and closure]

Abstract

George Gross and Jeong Woo Lee [University of Illinois at Urbana-Champaign]: We welcome the comments and questions of Jaleeli and VanSlyck and appreciate their interest in our work. We begin our response by reiterating the importance with which we view the pioneering work of the discussers [6], [7] and the key role this work played in the research reported in this paper. At the outset, we also need to emphasize that the aim of our paper was to provide a firm analytical basis for the formulation, analysis, and evaluation of load frequency control (LFC) performance criteria. We constructed a solid analytical basis by effectively exploiting the concepts of random processes and probabilistic models to develop the general criteria for LFC performance. The general LFC criterion we formulated using our analytical framework has as special cases the NERC CPS1 and CPS2 criteria. As a Manuscript

Criteria for evaluation of power balance control performance in UCTE transmission grid

“…Gross and Lee (2001) attempted to give a more general mathematical framework for the two criteria and also came to a conclusion that the CPS2 is redundant under certain conditions if the CPS1 is satisfied. However, Jaleeli and VanSlyck (2002) do not agree with this result and suggest that without the CPS2 criterion the RMS of all averages of frequency error could grow even further. In addition, Jaleeli and VanSlyck (1999) suggested to use a modified CPS2 in the sense that minute-averages were replaced by houraverages which could be more practical than requiring more rapid and costly control to meet ten-minute targets.…”

Dynamic performance of multi-area hydro thermal power systems with integral controller considering various performance indices methods

“…During the investigation of multi area system, the focus has been to optimize the integral controller gain using various performance index methods like Integral Time Square Error (ITSE), Integral Square Error (ISE) and Integral Absolute Time Error (IATE) [6], [7], [10]. In a multi area power system the load disturbance occurs in the system either in an area for this study is considered, 1% of step load disturbance occurs Area1 (Thermal area).…”