A Methodology for Controlling the Global Power Pool Transient Stability

Large power systems with AC and DC networks are a solid basis for uniting various facilities for electricity generation, its transmission over long distances, and distribution over vast territories. It is exactly electric networks with high transmission capacity that will become a basis for setting up a Global Power Pool (GPP) and will act as backbone electric networks within its framework. The GPP distinctive features are a variety of energy sources used, equipment, and an extensive coverage area. The purpose of the study is to develop a GPP sustainability management methodology, which will imply a process aimed at managing the sustainability conditions, including assurance of system stability through reasonable application of technical methods and means. The methodology of carrying out work to ensure the electric power system (EPS) stability under the conditions of large disturbances is based on means to ensure a stable mutual movement of the rotating masses in the system that are mutually interconnected by electromagnetic interaction. Stability is ensured in two ways: by excluding the nature of unstable motion (angular stability) and by controlling the parameters characterizing the electromagnetic coupling of rotating masses (controlling the transmission capacity parameters of electrical links). Criteria for ensuring the power pool stability are formulated, which have been approbated on the GPP analysis model in the ETAP software and computation system. Application of the obtained study results is presented as proposals for amending the existing regulatory documentation developed by national system operators of power systems.