• Title/Summary/Keyword: Power expansion planning

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RELIABLE ROLE OF NUCLEAR POWER GENERATION UNDER CO2 EMISSION CONSTRAINTS

  • Lee, Young-Eal;Jung, Young-Beom
    • Nuclear Engineering and Technology
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    • v.39 no.5
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    • pp.655-662
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    • 2007
  • Most decision makers in the electricity industry plan their electric power expansion program by considering only a least cost operation, even when circumstances change with differing complexities. It is necessary, however, to analyze a long-term power expansion plan from various points of view, such as environmental friendliness, benefit of a carbon reduction, and system reliability, as well as least cost operation. The objective and approach of this study is to analyze the proper role of nuclear power in a long-term expansion plan by comparing different scenarios in terms of the system cost changes, $CO_2$ emission reduction, and system reliability in relation to the Business-As-Usual (BAU). The conclusion of this paper makes it clear that the Korean government cannot but expand the nationwide nuclear power program, because an increased energy demand is inevitable and other energy resources will not provide an adequate solution from an economic and sustainability point of view. The results of this analysis will help the Korean government in its long-term resource planning of what kinds of role each electric resource can play in terms of a triangular dilemma involving economics, environmental friendliness, and a stable supply of electricity.

Analysis of Generation Expansion Planning Methodology in Deregulated Power Systems (규제 완화된 전력시스템의 전원개발계획 방법론 고찰)

  • Cho, Hyoung-Joon;Hwang, Sung-Wook;Chang, Seung-Chan;Kim, Bal-Ho;Kim, Jung-Hoon
    • Proceedings of the KIEE Conference
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    • 1999.07c
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    • pp.1101-1103
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    • 1999
  • Deregulation and restructuring of electric industry change the fundamental nature of electric business which will be coordinated by the evolved market structures such as spot market with pool and bilateral transaction structure, forward market and future market. Introduction of competition can significantly change the system operation in near-terms as well as long-run generation expansion planning Previous centralized planning by monopoly utilities which was guided for the public service purpose will be replaced by decentralized investments plan by individual generation companies in response to commercial incentives. This paper reviews WASP model as a centralized planning tool and presents a methodological analysis of generation expansion planning in deregulated power systems. It stresses how affects the process of planning new generation investments by the introduction of competition and how maintains proper fuel mix and continuously sustains system reliability under deregulated environments.

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Transmission Network Expansion Planning Using Risk Level Improvement Index (위험도 개선 지수를 이용한 송전계통 계획 수립에 관한 연구)

  • Kim, Sung-Yul
    • The Transactions of The Korean Institute of Electrical Engineers
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    • v.63 no.6
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    • pp.752-757
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    • 2014
  • This paper attempts to evaluate the impact of power plant penetration on constraints of a transmission network and proposes a methodology based on risk level, which can evaluate the condition of the network and facilities intuitionally. Furthermore, based on this methodology, RLII(Risk Level Improvement Index) is proposed in order to establish comprehensive TNEP(Transmission Network Expansion Planning) from a viewpoint of ISO(Independent System Operator). In order to verify the proposed methods in this paper, real power systems in Incheon and Shiheung areas, south Korea are applied to the case study.

A Study on the Outage Cost Assessment for Transmission System Expansion Planning (송전계통계획 수립용 공급지장비의 추정에 관한 연구)

  • Lee, Young-Jin;Kang, Sung-Rok;Choi, Jae-Seok;Kim, Ho-Yong;Kim, Seul-Gi
    • Proceedings of the KIEE Conference
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    • 2003.11a
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    • pp.479-483
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    • 2003
  • The outage cost has very important position for determination of the optimal level or optimal range of reliability in power system expansion planning. Establishing the worth of service reliability is a very difficult and subjective task. This paper suggests strategies for the role, need and assessment algorithm and methodology of the outage cost in power system expansion planning. Organization, data collections and method about D/B for outage cost assessment is proposed in the this study.

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A study on development of generation expansion planning considering CO2 emission constraints and Emission Trading (CO2 배출량 제약과 배출권거래제를 고려한 설비계획 방법론에 관한 연구)

  • Kim, Yang-Il;Lee, Seung-Hyun;Han, Seok-Man;Chung, Koo-Hyung;Kim, Bal-Ho H.
    • Proceedings of the KIEE Conference
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    • 2006.11a
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    • pp.46-48
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    • 2006
  • WASP which is used to plan generation expansion has disadvantages that can't manage environmental factors and regional supply-demand planning. But with the effectuation of the United Nations Framework Convention on Climate Change (UNFCCC) and Kyoto Protocol, it is expected that reducing greenhouse gases affects power system in its long-term generation expansion planning. Therefore national countermeasures is needed. This paper formulates a mathematical model considering CO2 emission constraints and Emission Trading that will be enforced. This model is based on the ORIRES which was made by ESI, Russia and manages generation expansion planning. And this mathematical model is verified by studying a case system.

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Market-Based Transmission Expansion Planning Under Uncertainty in Bids by Fuzzy Assessment

  • Kamyab, Gholam-Reza;Fotuhi-Firuzabad, Mahmood;Rashidinejad, Masoud
    • Journal of Electrical Engineering and Technology
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    • v.7 no.4
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    • pp.468-479
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    • 2012
  • In this paper, by a simple example it is shown that existing market-based criteria alone cannot completely and correctly evaluate the transmission network expansion from market view. However criteria congestion cost (CC) and social welfare (SW) together are able to correctly evaluate transmission network from market view and so they are adopted for the market-based transmission expansion planning. To simply indicate the limits of CC and SW social welfare percentage (SWP) and congestion cost percentage (CCP) are defined. To consider uncertainty in bids of market producers and consumers, and also indeterminacy in the acceptable boundaries of the SWP and CCP and their priorities, fuzzy assessment approach is used. In this approach, appropriate fuzzy sets and a fuzzy rule base are provided to evaluate the acceptability of an expansion plan. Then, the least-investment cost plan, which is acceptable in all probable scenarios, is searched. The proposed method is applied to an 8-bus system.

A Study on the Development of Industrial Power Management System (수용가 전력관리시스템 개발 연구)

  • Moon, Young-Hwan;Seong, Ki-Chul;Yoon, Sang-Hyun;Kim, Eon-Chung
    • Proceedings of the KIEE Conference
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    • 1995.07b
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    • pp.550-552
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    • 1995
  • Real time informations from industrial power system in operation can be used for efficient energy conservation, optimal operation of electrical equipments, and expansion planning of apparatus. Requirements for energy conservation and supplied power quality in customers are increasing significantly because of their effects on the production cost and efficiency. Thus, the development of low cost power management system which can can operate in domestic power system properly is substantially requested. In this research, operation software for real time monitoring and control system in customer power system has been developed to achieve the above purposes. The development of the operating software and related technologies are expected to be applied successfully for reducing electricity cost, enhancing power quality, determining facility expansion planning, operating optimal power system, increasing production efficiency, and reducing maintenance cost.

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A Study on Transmission System Expansion Planning using Fuzzy Branch and Bound Method

  • Park, Jaeseok;Sungrok Kang;Kim, Hongsik;Seungpil Moon;Lee, Soonyoung;Roy Billinton
    • KIEE International Transactions on Power Engineering
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    • v.2A no.3
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    • pp.121-128
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    • 2002
  • This study proposes a new method for transmission system expansion planning using fuzzy integer programming. It presents stepwise cost characteristics analysis which is a practical condition of an actual system. A branch and bound method which includes the network flow method and the maximum flow - minimum cut set theorem has been used in order to carry out the stepwise cost characteristics analysis. Uncertainties of the permissibility of the construction cost and the lenient reserve rate and load forecasting of expansion planning have been included and also processed using the fuzzy set theory in this study. In order to carry out the latter analysis, the solving procedure is illustrated in detail by the branch and bound method which includes the network flow method and maximum flow-minimum cut set theorem. Finally, case studies on the 21- bus test system show that the algorithm proposed is efficiently applicable to the practical expansion planning of transmission systems in the future.

Least Cost Generation Expansion Planning Methodology and Generation Cost (전원개발계획(電源開發計劃)에서의 비용최소화(費用最小化)와 발전원가(發電原價))

  • Chung, Do-Young;Park, Kyung-Suh;Park, Jong-Bai
    • Proceedings of the KIEE Conference
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    • 1992.07a
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    • pp.106-109
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    • 1992
  • This paper Introduces the concept of the generation cost of generating utilities and its calculation methods. Also, the economic evaluation method using generation cost which is called as a screening curve method will be presented along with the benefits and disadvantages of this concept. Next, the least-cost electric utility planning techniques which is used very widely in many countries will be Introduced In comparison with screening curve method. In this aspects, the optimal dynamic mix can be determined as a result. By comparing these two concepts, we will get the concrete concept why the economic evaluation method using generation cost can not be used for the future generation expansion planning.

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