A NEW APPROACH FOR MODELING COMPLEX POWER SYSTEM COMPONENTS IN DIFFERENT SIMULATION TOOLS

This paper presents a new modeling concept underlining the development of complex models for ad- vanced power system components using HVDC Light as an example. Instead of writing the model for HVDC Light in different simulation tools as user defined component, a "common component" is developed which represents the detailed control functionality of HVDC Light. This com- mon component is then linked to different simulation tools through appropriate user model interfaces. The common component is quite general and can be interfaced with any simulation tool that permits linking of an external applica- tion. This tool independent modeling approach is particu- larly useful for upgrade and maintenance of models with utmost quality especially when the product is under con- stant development. The performance of the HVDC Light models implemented in this novel way was evaluated for PSS/E and Power Factory and found to be satisfactory for power system dynamic stability analysis.