• Title/Summary/Keyword: Power Quality Cost

Search Result 6, Processing Time 0.109 seconds

Power Quality Index and Cost based on Load-Voltage Characteristics (부하의 전압특성을 고려한 모선별 전력품질 지표 및 가격 산정기법)

  • 이근준
    • The Transactions of the Korean Institute of Electrical Engineers A
    • /
    • v.52 no.4
    • /
    • pp.213-218
    • /
    • 2003
  • In front of the opening of electric distribution market in 2004, it is indispensable to have a proper estimation of power quality index and rower quality cost calculation mechanism which are indispensable to stabilize highly industrialized society and to vitalize the Investment lot electric power system. However, there were not enough measures to reflect the voltage characteristics such as voltage sags and Interruptions which make electric load in unstable operation. This paper suggests power quality index and power quality cost which translate various kinds of voltage records into bus load drop index(BLDI) and bus power quality cost(BPQC) based on aggregated load CBEMA curve. A sample calculation result shows that this method can produces the acceptable power Quality index and costs for utilities and customers requirements.

Evaluation of Power Quality Cost Based on Value-Based Methodology and Development of Unified Index (가치산정법에 의한 전력품질비용 산정 및 단일화지수의 개발)

  • Lee, Buhm;Kim, Kyoung-Min
    • The Transactions of The Korean Institute of Electrical Engineers
    • /
    • v.60 no.7
    • /
    • pp.1293-1298
    • /
    • 2011
  • This paper presents an Unified Index which can evaluate a performance of a distribution system based on value-based methodology. Reliability cost and voltage sags cost are calculated for each load point using Reliability Sector Customer Damage Function(SCDF). Aging cost is calculated for each load point using Aging SCDF. Power loss cost and operation cost are calculated for the system. By summation of each cost of load point and system, power quality cost can be obtained. Finally, this paper developed an unified index which can show the performance of a distribution system. Presented method has been applied to a real system, the usefulness of the method has been verified.

Bus Power Quality Index and Cost based on Load-Voltage Characteristics (부하의 전압특성을 고려한 모선별 전력품질 지표 및 가격 산정기법)

  • Lee, Geun-Joon;Heydt, G.T.
    • Proceedings of the KIEE Conference
    • /
    • 2002.11b
    • /
    • pp.9-14
    • /
    • 2002
  • In front of the opening of electric distribution market in 2004. it is indispensable to have a proper estimation of power quality index and power quality cost calculation mechanism are indispensable to stabilize highly industrialized society and to vitalize the investment for electric power system. However, there were not enough measures to reflect the voltage characteristics such as voltage sags and interruptions which make electric load in unstable operation. This paper suggests power quality index(LDI) and power quality cost(LDC) which translate various kinds of voltage records into load drop index and cost based on aggregated load CBEMA curve. A sample calculation result shows that this method can produces the acceptable power quality index and costs for utilities and customers requirements.

  • PDF

Reassessment of SMES Application Studies and Systematic approach Method under Deregulation (전력계통 제어용 초전도에너지 저장장치(SMES)의 검토사례 분석과 전력시장에서의 적용방안)

  • Lee, Geun-Joon;Yoon, Y.B.;Hwang, S.D.
    • Proceedings of the KIEE Conference
    • /
    • 2003.11a
    • /
    • pp.54-56
    • /
    • 2003
  • With the advancement of superconductor materials, especially in HTC YBCO(Gen II), the feasibility of SMES in power systems become much higher than previous days application[1]. Also, with the de-regulation of electricity market, it is indispensable to have a proper estimation of power quality index and power quality cost calcluation mechanism to stabilize highly industrialized society and to vitalize the investment for electric power system. This paper suggests a comprehensive algorithm[2] to determine the policy of SMES investment with the PQ Indices[3] based on aggregated load CBEMA curve reflecting the voltage characteristics such as volatge sags and interruptions which make electric load in unstable operation.

  • PDF

Customer Nodal Cost Calculation using Voltage Sag Coordination Charts (전압 강하 협조 그래프(VSCC)를 이용한 수용가 모선 가격 계산)

  • Jeong, Sung-Won;Lee, Hyun-Chul;Lee, Geun-Joon;Gim, Jae-Hyeon
    • Proceedings of the KIEE Conference
    • /
    • 2008.07a
    • /
    • pp.298-299
    • /
    • 2008
  • In this paper, supposed that can measure power quality of bus and can calculate this cost in case electric charges about customer are imposed by each bus. When reflected this in system planning, expected cost proposed following method through sample system. We calculated the nodal cost by OPF(optimal power flow) in system and the drop numbers that happen during year of loads utilizing VSCC. Also calculated BPQC using the disruption numbers. As a result, calculated bus total cost including power quality cost through case study.

  • PDF

Customer Nodal Cost Calculation considering Power Quality (전력품질을 고려한 수용가 모선 가격 계산)

  • Jeong, Sung-Won;Park, In-Duck;Gim, Jae-Hyeon;Lee, Geun-Joon
    • Journal of the Korean Institute of Illuminating and Electrical Installation Engineers
    • /
    • v.21 no.3
    • /
    • pp.82-87
    • /
    • 2007
  • This paper measures power quality of bus in case electric charges about customer are imposed by each bus, supposed that can calculate this cost. When reflected this in system planning, expected cost proposed following method through sample system. To calculate nodal cost operating condition of power equipment calculates nodal cost[$/MVAH] supposing by situation that is optimized by OPF(optimal power flow) in system. The damage cost that is shed by fault that happen during year of loads in system that is linked on each bus was produced. As a result, proposed method was very effective in case of calculating bus total cost including power quality cost.