Development of a method for compressing the information content of the results of the continuation power flow analysis

Abstract

Abstract In this work is developed a method for compressing the information content of the results of the CPF analysis. MATLAB was used as the calculation tool, which made it possible to display the results graphically in a simple manner. In this paper is presented schematically the created algorithm, and then through an example in a theoretical and practical way it is explained step by step by reading the schematics of the algorithm. Synthetic high-voltage grids with 2 to 17 nodes served as test systems. The development of software that can be used for any network will be the subject of future work. The investigations revealed the following advantages of the CPF. It enables the analysis of the system behaviour both in the stable and the unstable area of the system under investigation. The CPF thus provides "exact" information about the load level at which the voltage collapse occurs. This result can be considered "exact" if there is a consensus that the phenomenon of voltage collapse can be described by a stationary approach. Finally, the CPF analyses (PV curve) results are easy to interpret with appropriate graphic processing. Results of voltage stability analyses are presented. The voltage magnitudes and voltage angles are graphically displayed depending on the load for all networks calculated using CPF (from 2 nodes to 17 nodes).