DETERMINATION OF GENERATOR GROUPINGS FOR AN ISLANDING SCHEME IN THE MANITOBA HYDRO SYSTEM USING THE METHOD OF NORMAL FORMS

This paper deals with the application of the method of normal forms [1 -5] in the analysis of a specific aspect of system dynamic behavior in the Manitoba Hydro system. Following a major loss of transmission cap acity on the Manitoba Hydro HVDC system (Nelson River system), and the subsequent operation of protection systems, there is a major deficit of generation in the remaining system, comprising Manitoba and Saskatc hewan. The method of normal forms is applied to determine the natural groupings which are formed by the machines in Manitoba Hydro due to no nlinear interaction. This grouping then provides a basis for developin g a systematic procedure to island the remaining system.