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A Study on Digital Protection Algorithm of IED for Hydroelectric Generating Unit

수력발전소 IED의 디지털 보호 알고리즘에 관한 연구

  • 박철원 (강릉원주대학교 전기공학과)
  • Received : 2014.08.09
  • Accepted : 2014.08.18
  • Published : 2014.09.01

Abstract

Generator of hydroelectric generating unit is to be protected by the digital protection IED. Now, any IED of large capacity for hydro power plant was not developed by domestic technology. This is because it is required for the generator of the high reliability technology and considered as due to the sale of the market of IED device is small. However, the protection IED must be develop by domestic technology to meet the advanced needs of the construction and replacement of electrical equipment in accordance with the new power plant development. In this paper, a digital algorithms for protection IED of large size of hydroelectric generating unit were designed. The algorithms consist of the stator protection, anti-motoring, overexcitation and loss of excitation. The performance of the algorithms were evaluated by using the simulation data collected from the PSCAD/EMTDC software. From test results, it can be seen that the developed algorithms were not maloperation.

Keywords

References

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