Jungji Kwon

Sensitivity Analysis of Probabilistic Reliability Evaluation of KEPCO System Using TRELSS

The importance and conducting necessity studies on grid reliability evaluation have been increasingly important in recent years due to the number of black-out events occurring through in the world. Quantity evaluation of transmission system reliability is very important in a competitive electricity environment. The reason is that the successful operation of electric power under a deregulated electricity market depends on transmission system reliability management. Also in Korea it takes places. The results of many case studies for the KEPCO system using the transmission reliability evaluation for large-scale systems (TRELSS) Version 6.2, a program developed by EPRI are introduced in this paper. Some sensitivity analysis has been included in case study. This paper suggests that the some important input parameters of the TRELSS can be determined optimally from this sensitivity analysis for high reliability level operation of a system

Probabilistic Reliability Analysis of KEPCO System Using TRELSS

The importance of conducting necessary studies on grid reliability evaluation has become increasingly important in recent years due to the number of blackout events occurring throughout the world. Additionally, quantitative evaluation of transmission system reliability is very important in a competitive electricity environment. The reason behind this is that successful operation of an electric power company under a deregulated electricity market depends on transmission system reliability management. The results of many case studies for the Korea Electric Power Cooperation (KEPCO) system using the Transmission Reliability Evaluation for Large-Scale Systems (TRELSS) Version 6.2 are illustrated in this paper. The TRELSS was developed by EPRI and Southern Company Services Inc. This paper presents the reliability analysis of KEPCO system expansion planning by using the TRELSS program.

Probabilistic Reliability Based Tie Line Capacity for Interconnecting Power Systems of South Korea, North Korea and Far East Russia

This paper illustrates to determinate how much is the reasonable capacity of tie lines in view point of probabilistic reliability in the North East Asia by using the tie line constrained equivalent assisting generator model (TEAG), which has been already developed by authors. A reliability evaluation program, it is named, NEAREL, based on the TEAG model was made. The reliability evaluation results for an interconnection scenario of the actual power systems of three countries in the North East Asia is introduced. The reasonable capacities of the tie line for three countries interconnection scenario for two target years, 2010 and 2020, are suggested from sensitivity analysis

Sensitivity analysis of probabilistic reliability evaluation of Korea power system

Reliability and power quality have been increasingly important in recent years due to the number of black-out events occurring through in the world. Quantity evaluation of transmission system reliability is very important in a competitive electricity environment. The reason is that the successful operation of electric power under a deregulated electricity market depends on transmission system reliability management. This paper presents sensitivity analysis of probabilistic reliability evaluation of Korea power system in long-term planning (2005-2010) by using the transmission reliability evaluation for large-scale systems (TRELSS) program. The case studies present the probabilistic reliability evaluation indices of practical Korea power system as applied TRELSS which has determined optimally control input parameters with Korea power system

Probabilistic Reliability Evaluation for 765KV Transmission Lines in KEPCO Grid Expansion Planning

The importance and necessity of conducting studies on grid reliability evaluation have been increasingly important in recent years due to the number of black-out events occurring through in the world. Quantity evaluation of transmission system reliability is very important in a competitive electricity environment. The reason is that the successful operation of electric power under a deregulated electricity market depends on transmission system reliability management also in Korea it takes places. This paper presents the probabilistic reliability evaluation for 765kV transmission lines in KEPCO grid expansion planning. The transmission reliability evaluation for large-scale systems (TRELSS) Version 6.2, a software package developed by electric power research institute (EPRI) is utilized in determining probabilistic reliability evaluation indices of KEPCO-system

Probabilistic Reliability Evaluation of Korea Power System in Operation Mode

Reliable operation of power system is fundamental to the on-going industry reform. This paper presents the result of marginal power flow evaluation performed on Korean power system using two commercial software packages: Physical and Operational Margins (POM V. 2.2) and probabilistic reliability assessment (PRA V. 3.1), respectively. The case study of Korea power system for year 2006 data shows that these packages are effective in identifying possible weak points and root causes for likely reliability problems. The potential for these software packages is being explored further for assisting system operators with managing Korea power system under real-life setting in the near future.

Probabilistic reliability evaluation for interconnecting the power systems in North East Asia

This paper illustrates the case studies of reliability evaluation for interconnecting power systems in the north east Asia by using the tie line constrained equivalent assisting generator model (TEAG), which has been already developed in the second project year. A reliability evaluation program, it is named, NEAREL, based on the TEAG model was made. The reliability evaluation results for the seven interconnection scenarios of the actual power systems of six countries in the north east Asia are introduced and compared. The reasonable capacity of the tie line for three countries interconnection scenario is suggested from sensitivity analysis