Abstract
This paper presents a novel practical technique developed and applied for assessment of reliability and quality in real-life power systems. System-wide integrated performance indices are capable of addressing and revealing areas of deficiencies and bottlenecks as well as shortfalls in the composite generation-transmission-demand structure of large-scale power grids. The new evaluation methodology offers a general and comprehensive framework to assess the harmony and compatibility of generation capacities, transmission and required demand in a power system. The technique used in this paper is evaluated by the shortfall generation capacity index which is based on three dimensions introduced to represent the relationship between certain system generation capacity and demand. Also, practical applications to the Saudi power grid are presented for demonstration purposes.
Highlights
The issues of service reliability and system quality have risen to a high priority on the agenda of electric power companies
The investigated reliability and quality measurements are useful for the design of flexible power supply reliability for various customers and beneficial to the long-term system capacity expansion planning of electric power systems [12,13,14,15,16,17].The current work constitutes a new research in system reliability assessment where the derived system-wide performance quality indices are capable of addressing and revealing areas of shortfall and bottlenecks as well as redundancies in the composite generation-demand structure of large-scale power grids
This paper presents a major extension to a previously published work by developing a theory and formulas for computing the expected values of different system reliability and performance quality indices
Summary
The issues of service reliability and system quality have risen to a high priority on the agenda of electric power companies In this regard, many power utilities are concerned about the continuous increase in system demand along with the growing limitations on generation and transmission, facility expansion due to financial constraints, environmental concerns, etc. The investigated reliability and quality measurements are useful for the design of flexible power supply reliability for various customers and beneficial to the long-term system capacity expansion planning of electric power systems [12,13,14,15,16,17].The current work constitutes a new research in system reliability assessment where the derived system-wide performance quality indices are capable of addressing and revealing areas of shortfall and bottlenecks as well as redundancies in the composite generation-demand structure of large-scale power grids
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