The demand for electricity is increasing at a very high rate and demand for power is running ahea... more The demand for electricity is increasing at a very high rate and demand for power is running ahead of supply. Introduction of Distributed energy resources (DES) is the biggest change happening to the distribution network. There is an increased integration of DES with the distribution network using power electronics converters as to meet the continuously increasing demand of electricity. In future it is expected that the penetration level of distributed energy resources will further increase. The connection of distributed energy resources with the distribution network result in increase in the value of fault current which can causes the abnormal conditions in the entire power system network. The equipment installed at generating station and at substation is very expensive. Therefore it is necessary to protect these equipment from fault current. A Fault Current Limiter (FCL) is a revolutionary power system device that overcomes the problems due to increased fault current levels. It is a device that reduces prospective fault currents to a lower manageable level. In this paper principals of operation and structures of various fault current limiter is discussed. It gives short and up-to-date literature review of conventional fault current limiting devices as well as fault current limiting devices which are still in a research or development stage. Keywords— distributed Energy Resources; fault current; fault current limiter (FCL); power system network
The demand for electricity is increasing at a very high rate and demand for power is running ahea... more The demand for electricity is increasing at a very high rate and demand for power is running ahead of supply. Introduction of Distributed energy resources (DES) is the biggest change happening to the distribution network. There is an increased integration of DES with the distribution network using power electronics converters as to meet the continuously increasing demand of electricity. In future it is expected that the penetration level of distributed energy resources will further increase. The connection of distributed energy resources with the distribution network result in increase in the value of fault current which can causes the abnormal conditions in the entire power system network. The equipment installed at generating station and at substation is very expensive. Therefore it is necessary to protect these equipment from fault current. A Fault Current Limiter (FCL) is a revolutionary power system device that overcomes the problems due to increased fault current levels. It is a device that reduces prospective fault currents to a lower manageable level. In this paper principals of operation and structures of various fault current limiter is discussed. It gives short and up-to-date literature review of conventional fault current limiting devices as well as fault current limiting devices which are still in a research or development stage. Keywords— distributed Energy Resources; fault current; fault current limiter (FCL); power system network
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