Computerized patching for power system hybrid simulator

The unique topological characteristics possessed by an electric power system are used to develop the two techniques for minimizing the total number of switches required for a COMPAT system. The first technique, the restricted-connection technique, utilizes the restrictions of the interconnectivity between different power-system components. The second technique, the modularization technique, breaks a simulated system into a number of modules, then the intramodule connections are made within each module, and the intermodule connections are made by an intermodule-connection block. Both techniques significantly reduce the number of switches required for a COMPAT system. The strictly nonblocking, three-stage switching matrix that further saves the number of switches is derived. The formulation of eleven major hybrid-simulation models of electric power-system components suitable for computerized patching and their characteristics are described.