A Test on Probabilistic Reliability Evaluation of the Korea Power System

2007 ◽  
Vol 8 (2) ◽  
Author(s):  
TrungTinh Tran ◽  
Kwon Jungji ◽  
Jaeseok Choi ◽  
Donghun Jeon ◽  
Jinboo Choo ◽  
...  
Keyword(s):  
Sensitivity Analysis ◽  
Electricity Market ◽  
System Reliability ◽  
Large Scale ◽  
High Reliability ◽  
Reliability Evaluation ◽  
Transmission System ◽  
Evaluation Tool ◽  
Successful Operation ◽  
Reliability Management

The importance and conduct of necessary studies on grid reliability evaluation have 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 is that successful operation of an electric power under a deregulated electricity market depends on transmission system reliability management. This paper suggests that the important input parameters of a probabilistic reliability evaluation tool for the KEPCO-system by sensitivity analysis of high reliability level operation. Simultaneously, it also presents sensitivity analysis probabilistic reliability evaluation of practical KEPCO-system long-term transmission system expansion planning (2006-2010). The tool utilized a Transmission Reliability Evaluation for Large-Scale Systems (TRELSS) which was developed by EPRI and Southern Company Services Inc.

Reliability Management of the Power System in China: Present Status and Future Challenges

2014 ◽  
Vol 521 ◽  
pp. 480-484
Author(s):  
Guo Zhong Liu
Keyword(s):  
Power System ◽  
Electricity Market ◽  
System Reliability ◽  
Present Status ◽  
Large Scale ◽  
Power Transmission ◽  
Reliability Management ◽  
Future Challenges ◽  
Stochastic Characteristics ◽  
Electricity Reliability

With the developments of West-East power transmission projects, South-North power supply and the increased grid interconnections, in addition to the electricity market developments, the uncertain and stochastic characteristics of the power system operation are becoming more and more challenging and the risk of large scale blackout of the power system is increased remarkably. The electricity reliability management organization in China has been introduced. In this paper, present status of the power system reliability operation in China has been summarized and the new problems and challenges for the reliability management have been analyzed and discussed.

scholarly journals A Multi-Criteria Decision Framework for Optimal Augmentation of Transmission Grid - Addressing a Tool for Sensitive Zone Detection in Electricity Market

2008 ◽  
Vol 9 (4) ◽  
Author(s):  
Mohammad R. Hesamzadeh ◽  
Nasser Hosseinzadeh ◽  
Peter J Wolfs
Keyword(s):  
Sensitivity Analysis ◽  
Power Systems ◽  
Electricity Market ◽  
Large Scale ◽  
Test System ◽  
Transmission System ◽  
System Structure ◽  
Transmission Grid ◽  
Expansion Planning ◽  
Transmission Expansion

Transmission system structure has an essential effect on the reliability of the power system and electricity market performance, especially when producers bid strategically. As part of on-going research on the design of a robust algorithm for expansion planning of the transmission grid in the Australian electricity market, this paper presents a framework which addresses: (1) the security of power delivery to the load points of the transmission system in case of single line outages; (2) the minimization of transmission system lost load; (3) an efficient electricity market for market participants; (4) construction and maintenance costs of transmission augmentation options; and (5) operation efficiency of the transmission grid.The suggested algorithm benefits from the dynamic programming and sensitivity analysis approaches along with the aggregation method in its multi-criteria decision-making to locate the optimum configuration of a future transmission system. A set of indices, which account for impacts of the augmentation options of the transmission grid on five aforementioned reliability and market criteria, are proposed and used in the optimum framework for expansion planning of the transmission grid.Although the methodology is promising for expansion planning of the transmission system, considering the sensitivity analysis concept employed, the proposed methodology would be suitable to detect the sensitive areas of the transmission system to be expanded. The tool would be very useful in the case of large scale power systems for a smart reduction of the transmission expansion options.The proposed methodology has been applied to a 6-bus and a modified IEEE 30-bus test system to show the effectiveness of the sensitivity-based algorithm.

scholarly journals Technologies for Distributed Generation: key performance factors for industrial application

2018 ◽  
pp. 80-87 ◽  
Author(s):  
G. G. Nalbandyan ◽  
S. S. Zholnerchik
Keyword(s):  
Distributed Generation ◽  
Electricity Market ◽  
Smart Grids ◽  
Large Scale ◽  
High Efficiency ◽  
High Reliability ◽  
Low Cost ◽  
Retail Trade ◽  
Economic Effects ◽  
The Cost

The reduction in the cost of technologies for distributed generation involves an increasing decentralization of power generation and large-scale development of distributed sources around the world. This trend is a key change in both the characteristics of electricity consumption: it is becoming increasingly flexible and mobile, and the patterns of consumer behavior in the electricity market. Electricity consumers are becoming at the same time its suppliers and require revision of traditional regulation standards of the electricity market. The purpose of the article is to assess the influence of distributed generation on the economy of both enterprises and the country as a whole. To identify the effects of the introduction of distributed generation technologies, the method of case study analysis is used. The empirical analysis was carried out on the basis of twelve Russian companies that use their own energy sources. The selected companies belong to the following industries: industrial production, housing and communal services, retail trade, construction, agriculture. Technological and economic effects are revealed. Technological ones include: improving consumer reliability, energy security, involving local energy resources, optimizing load management and redundancy, providing the flexibility of smart grids (in terms of generation), reducing the load on the environment, including CO2 emissions. Economic effects: optimization of the load schedule, reduction of losses in the process of transmission/distribution of energy, expansion of cogeneration, etc., providing the consumer with the electricity of a given quality, saving losses in networks, reducing the cost of energy. The identified effects of the introduction of distributed generation technologies make it possible to highlight the advantages of regeneration facilities: high efficiency and the possibility of cogeneration and trigeneration, individual maneuvering capacity loading, high reliability of equipment, low cost of transportation of electricity, fuel usage of the by-products and the main production waste. In conclusion, recommendations are formulated on a set of measures for the development of industrial distributed generation in Russia at the Federal level.

Research on Reliability Evaluation Methods of Composite Generation and Transmission System

2014 ◽  
Vol 1044-1045 ◽  
pp. 466-477
Author(s):  
De Hua Cai ◽  
Le Feng Cheng ◽  
Lin Lin Su ◽  
Li Gou Wang ◽  
Tao Yu
Keyword(s):  
Complex System ◽  
System Reliability ◽  
Reliability Assessment ◽  
Reliability Evaluation ◽  
Transmission System ◽  
Power System Reliability ◽  
Evaluation Indexes ◽  
Evaluation Algorithm ◽  
State Enumeration ◽  
Engineering Projects

The basic mathematical method for power system reliability evaluation was indicated, the simple and complex system was respectively introduced, several methods of reliability analysis of simple was given in this paper, and the reliability evaluation indexes system and methods of composite generation and transmission system was analyzed, then focused on state enumeration method applied in the reliability assessment of system, the detailed example analysis was given and the adequacy reliability indexes were computed in detail. Finally, the current reliability evaluation and status of composite generation and transmission system was summarized simply and its reliability evaluation algorithm steps applied in current actual engineering projects was given.

The Reliability Evaluation of Power System Based on Uncertain Linguistic Information

2013 ◽  
Vol 709 ◽  
pp. 794-798
Author(s):  
Da Rong Gao ◽  
Yu Ru Geng
Keyword(s):  
Power System ◽  
Electric Power ◽  
Electricity Market ◽  
System Reliability ◽  
Reliability Assessment ◽  
Reliability Evaluation ◽  
Electric Power System ◽  
Power System Reliability ◽  
Target Setting ◽  
Linguistic Information

Electric power system reliability evaluation depends on reasonable target setting and calculation. This article mainly analyses the new index of power system reliability assessment in the electricity market environment, and on the basis of this, introduces the application of uncertain linguistic information in the ceremony system reliability evaluation, representing original parameters with uncertain number, and random processing fault condition happened and transfer events and process.

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