Voltage And Reactive Power Control in Transmission Networks: Present Practice And Prospects of Future Developments

Abstract

This paper is devoted to the Consideration of general probl enis of vol t age and reactive power control in high voJ tage transmission networks. In addition to the review of present practices, IIleetillg the different control objectives (sel-vice quality, security, economy and reliahili ty), the paper gives ilie classification and lists tlie main features of actual realizations. It was found that the organization of the control matches the natural mi1 ti-level Irierarclty of tlie physical process, wliere a variety of conrbinations belveen manual and Iieur-islic 011 one side, and cooipLiter-assisted nranual/automatic lypes of cotttrol on tlie other, can be met. 7'he general trend to full autoinetion of this control is obvious. Wjth lflis statement in the mjnd, the paper pays the nmin allentioir to the jriiprovenlent of practices iri tlie traitsition stage, between presently doinii~anf nmnual and heuristic solutions and prospective automatic arid computerized control. It was found that the most suitable way to bridge this transition period is to use the combination of local automatic coritrol of primary regulating resources, and centralized computer-assisted manual control, wit11 sui table software support , tai 1 lored 1 o match particular system needs. 7'he short description of the application of the proposed concept is also given in the paper.