Multi-level Interval Arithmetic based Load Flow Algorithm of Radial Distribution Systems

A. Chaturvedi, K. Prasad, R. Ranjan, and M.B.R. Murthy (Malaysia)


Multilevel Interval Arithmetic, Radial distribution systems, Gaussian distribution and Load Flow. Nomenclature |V(i)|: voltage magnitude of iTh node |V(i)ll |: voltage magnitude lower limit at


In this paper multi-level interval arithmetic is used to incorporate uncertainties of load parameters in the load flow studies that can be used for the planning and expansion planning of radial distribution system (RDS). Application of interval arithmetic is demonstrated through realistic example and results are compared with conventional load flow algorithms (CLF). Composite load model is also incorporated in the algorithm.

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