Abstract
This paper presents a technique to evaluate the degree of reliability well-being of bulk generation and HVDC transmission systems. The system well-being is categorized in terms of system health and margin in addition to the conventional risk index. Such a technique enables power system designers, planners and engineers to analyze the generating system and the HVDC transmission system independently by obtaining the well-being area diagrams for each system. The bulk generation and HVDC transmission well-being area diagram can be found by combining both diagrams. Two performance indices designated as the expected healthy performance index and the not-at-risk performance index which account for the system load characteristics are introduced to describe the degree of system well-being. The technique is illustrated by application to a simple hypothetical configuration and a practical HVDC power system.
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