[논문]Enhancement of Interface Flow Limit using Static Synchronous Series Compensators

Kim Seul-Ki; Song Hwa-Chang; Lee Byoung-Jun; Kwon Sae-Hyuk

doi:10.5370/jeet.2006.1.3.313

Enhancement of Interface Flow Limit using Static Synchronous Series Compensators 원문보기

Journal of electrical engineering & technology, v.1 no.3, 2006년, pp.313 - 319

Kim Seul-Ki (Power Conversion and System for RES Research Group, Korea Electro-technology Research Institute) , Song Hwa-Chang (Department of Electrical Engineering, Kunsan University) , Lee Byoung-Jun (Department of Electrical Engineering, Korea University) , Kwon Sae-Hyuk (Department of Electrical Engineering, Korea University)

Abstract ▼ AI-Helper

This paper addresses improving the voltage stability limit of interface flow between two different regions in an electric power system using the Static Synchronous Series Compensator (SSSC). The paper presents a power flow analysis model of a SSSC, which is obtained from the injection model of a series voltage source inverter by adding the condition that the SSSC injection voltage is in quadrature with the current of the SSSC-installed transmission line. This model is implemented into the modified continuation power flow (MCPF) to investigate the effect of SSSCs on the interface flow. A methodology for determining the interface flow margin is simply briefed. As a case study, a 771-bus actual system is used to verify that SSSCs enhance the voltage stability limit of interface flow.

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문제 정의

This paper focuses on studying the effect of SSSCs on the voltage stability limit of interface flow. Interface flow limit is defined as the maximum power transfer that can be allowed through interfece lines connecting two regions of a power system in terms of the steady-state voltage stability.

제안 방법

Then active power flow from Region A to Region B through interface lines is naturally increased by decreasing the generation in Region B while increasing that in Region A for reducing total generation cost. Based on the above concept, the original power flow equations are modified into the reformulated MCPF Equations (5) and (6), containing a continuation parameter representing increase in interface flow.

대상 데이터

This system consists of 771 buses and 1437 branches. Interface flow is transferred from Region A to Region B through four 365kV interface routes (2 lines per route), i.

이론/모형

In the predictor, the initial guess of the next solution is determined using the tangent vector of the known solution. In the corrector, the next solution is calculated using the Newton-raphson method. The basic principle of the locally parameterized continuation method and its application to power flow equation are well established in the literature [10].

후속연구

The simulation results indicated a considerable increase in interface flow limit by SSSC compensation. Further study on impacts of various FACTS controllers such as UPFC, STATCOM, etc. should be carried out to seek fbr the most effective way of increasing the interfoce flow limit.

참고문헌 (10)

N.G. Hingorani, High Power Electronics and Flexible AC Transmission Systems, IEEE Power Engineering Review, pp. 3-4, July 1988
A. Edris, FACTS Technology Development: An Update, IEEE Power Engineering Review, No. 3, Vol. 20, March 2000
C.A. Canizares, Z.T. Faur, 'Analysis of SVC and TCSC Controllers in Voltage Collapse', IEEE Trans. Power Systems, Vol. 14, No. 1, February 1999
C.A. Canizares, Using FACTS Controllers to Maximize Available Transfer Capability, Bulk Power Systems Dynamics and Control IVRestructuring, August 24-28, 1998, Santorini,Greece
H. Song, S. Kim, B. Lee, S.H. Kwon, V. Ajjarapu, Determination of Interface Flow Margin for Voltage Stability Analysis Using the Modified Continuation Power Flow, in Proc. 2000 IEEE Power Engineering Society Summer Meeting, pp. 32-37
B. Lee, H. Song, S.-H. Kwon, G. Jang, J. Kim and V. Ajjarapu, 'A Study on Determination of Interface Flow Limits in the KEPCO System Using Modified Continuation Power Flow (MCPF)', IEEE Trans. Power Systems, Vol. 17, No. 3, pp. 557-564, August 2002

상세보기
L. Gyugyi, C.D. Schauder, K.K. Sen, 'STATIC SYNCHRONOUS SERIES COMPENSATOR: A SOLID-STATE APPROACH TO THE SERIES COMPENSATION OF TRANSMISSION LINES', IEEE Trans. Power Delivery, Vol. 12, No. 1, January 1997
M. Norooizian, L. Angquist, M. Ghandhari, G. Andersson, 'USE OF UPFC FOR OPTIMAL POWER FLOW CONTROL', IEEE Trans. Power Delivery, Vol. 12, No. 4, October 1997
K. K. Sen, 'SSSC ？Static Synchronous Series Compensator: Theory, Modeling, and Applications', IEEE Trans. Power Delivery, Vol. 13, No. 1, January 1998
V. Ajjarapu and C. Christy, 'The continuation power flow: A tool for steady-state voltage stability analysis', IEEE Trans. Power Systems, Vol. 7, pp. 416-423, February 1992

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