A complex method for the optimum VAR control of radial primary power distribution networks dealing with the proper selection and installation of shunt capacitors is developed here. The problem is examined both on an annual and a long-term basis.
First objective functions and relative algorithms, which determine the kind, the size, the minimum numbers the locations and the adjustments of the possibly installed standard capacitors are developed. Then all these are embodied in a complex software package, which examines all the technically acceptable VAR control solutions.
It compares them economically and finally proposes the more profitable.In this, a complex method for the optimum VAR control of a radial primary distribution network with capacitors is developed. The problem is examined both for constant and growing annual peak load buy developing relative software packages. Realistic data of the examined networks such as lateral branches, conductor sizes, load distribution and variation are taken into account. The target in every case is the determination of the kind, size, minimum number, location and possible adjustments of standard capacitors which effect the techno economically var control. This is achieved by utilizing previous considerable methods dealing with the examined problem which however are adapted to new objective functions and they are modified so as to over come their weaknesses and to optimize the necessary computing time..