• Proceedings of the KIEE Conference
• /
• 2006.07a
• /
• pp.187-189
• /
• 2006

Compensators need to keep the voltage properly at the KEPCO system in a ruddle-long term point of view. Therefore, it is necessary to forecast the amount of compensators. In this paper, we analyze how much compensators are needed and what kind of effects is given on the KEPCO system in a middle-long term point of view. In addition, this analysis is based on the books named "The plan of Transmission and Substation at the KEPCO in 2005" and we used PSS/E program when we analyze the KEPCO system.

• Proceedings of the KIEE Conference
• /
• 2006.07a
• /
• pp.300-301
• /
• 2006

Korean power system has some problems like as curtailing investment and the NIMBY (Not In My Back Yard) phenomena, because of power demand concentration in downtown area. In this time, superconducting power devices rise as a very attractive solution. This study proposes a basic concept of superconductivity power system with bulk capacity, and identifies the items for technical and economic analysis. The proposed system consists of superconducting cables/transformers/FCLs(fault current limiter). The basic concept is to replace 154kV conventional cables with 22.9kV superconducting cables and to convert a 154kV substation into a 22.9kV switching station in downtown area.

• Proceedings of the KIEE Conference
• /
• 2006.05a
• /
• pp.78-82
• /
• 2006

The Partial Discharge Monitoring System is technology which is available to measure & analysis the partial discharge of Power equipment. This technology is in the limelight as a pre-forecast system of equipment defect but there are some problems like no protocol standard, layered network management and the limitation of physical size. This paper presents whole system structure includes engineering centers, LN(Logical Node) to apply PDMS for, base-digital substation system, ICE61850 compatible Condition Monitoring &Diagnosis (CMD), Local Unit(LU), Intelligent Electronic Device (IED) for the solution scheme of these limitations.

• Proceedings of the KIEE Conference
• /
• 2001.05a
• /
• pp.27-29
• /
• 2001

As the amount of electric power consumption is increasing rapidly, the power systems are complex and growing larger. It is required that the quality of electricity is better. To satisfy this demands It is required to analyze the data of the fault accurately and then to find a cause and to enforce a countermeasure. We analyzed the fault of transmission & substation installation over 66kV statistically to operate the power system well. We introduced the faults that are classified into the cause, the facilities, the voltage. This paper explains the experience of the fault in electric power coporation that is operating the large power system. This paper will be meaningful. because this paper gives the data of real power system. We wish that the reliability of power suppliment will be improved, as using this paper properly and this paper is helpful to the growth of this field and the development of technology.

• Proceedings of the KIEE Conference
• /
• 1995.07b
• /
• pp.565-567
• /
• 1995

Though he is a experienced expert, it takes much time and considerable effort to review this items in detail since the widespread terms to plan distribution system is considered. Therefore it needs software system for planning of distribution system to solve much time and human resoureces due to manipulate many data and calculate sophiscated technology. The object this study raises its availability by assisting distribution works such as load forecast, substation planning in ChangWon city based on CADPAD software package.

• Proceedings of the KIEE Conference
• /
• 2007.07a
• /
• pp.83-84
• /
• 2007

본 논문은 변압기 소음저감을 위하여 Active part와 외함 형상변경에 따른 연구를 수행하였다. Active part는 변압기 소음의 주 원인인 철심의 적층방법 및 적층 step수에 대해 분석하였으며, 외함의 형상을 원형으로 변경하고 충격시험 및 유한요소 해석을 통해 원형외함의 특성을 파악하였다.

• Journal of the Korean Institute of Illuminating and Electrical Installation Engineers
• /
• v.27 no.12
• /
• pp.74-80
• /
• 2013

Generator faults does not happen more often than the transmission and substation facility faults. However, impacts on the power system by generator faults are very large. In order to minimize the impact of generator faults, generator protection and control system with high reliability is required. Most of the generator relay in generator protection and control system of large power plant of Korea is operated by imports from abroad. Accordingly, in order to accumulate source technology and increase the import substitution effect, localization of multi-function generator protection IED is being developed. This paper deals with the implementation of a multi-function prototype IED H/W, which can be command and data exchange through communication for measuring, monitoring, protection and control. And the IED specification, various relay elements, measurement elements, communication functions, module function, and test system for the prototype IED H/W are described.

• Proceedings of the KIEE Conference
• /
• 1991.11a
• /
• pp.51-54
• /
• 1991

As a transmission network planning should be optimal in the sense of technology, economy and reliability, an adequate optimization tool is required. The simulation model is valuable at this case. It enables the planner to detect the weak points of the system by providing the planner with unsupplied powers, operating cost, and active losses at each substation node and each line. This paper represent the example of application of simulation model for power system planning.

• Proceedings of the KIEE Conference
• /
• 2011.07a
• /
• pp.2213-2214
• /
• 2011

It is important to consider power stability in case of design and construction of a substation at railroad because a train is operated by electricity and tains are drived simultaneous at the same section. This paper described stability of feeder system considering driving conditions and railroad conditions of train which is drived. Simulation tool, TOM(Train Operations Model) software is used to ensure stability of feeder system. As results of simulation, feeder voltage source is in limits on driving operation dia of trains.

• Proceedings of the KIEE Conference
• /
• 2009.07a
• /
• pp.266_267
• /
• 2009

22.9kV HTS(High Temperature Superconducting) cable and SFCL(Superconducting Fault Current Limiter) will be installed to Icheon 154kV substation for real distribution power system operation in 2010. This paper proposes CLR (Current Limiting Resistance) specification of the SFCL and fault current condition fo the HTS cable for applying to Korean power system.