Reliability Study of HV Substations Equipped With the Fault Current Limiter
شش سال پیش منتشر شده
تعداد بازدید: 1000
کد پروژه: 65869
شرح پروژه
Abstract—Of particular interest to restrict the short-circuit
level of interconnected power systems is to exploit fault current
limiter (FCL) technologies. FCLs let the system planners devise
new reliable and rather economical substation configurations and
provide the possibility of proposing a promising cost-effective
and prompt solution to the fault current over duty problem in
the existing substations. This paper attempts to assess reliability
of substation architectures accommodating the FCL operation
and, besides, numerically investigates the FCL’s impacts on the
substation reliability indices. In order to clarify the proposed
approach, two case studies with and without FCL are analyzed
and compared. Although the discussions raised here are applicable
for reliability modeling of all structures, five common
substation configurations, namely: 1) single-bus single-breaker; 2)
double-bus single-breaker; 3) ring bus; 4) one breaker and a half;
and 5) double-bus double-breaker are considered in this paper.
Numerical studies reveal that FCL deployment, while keeping the
maximal flexibility of substation, may deteriorate the reliability
indices of the substation due to the possible failures of FCLs.
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