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Assessment of Restoration Scheme for Transmission Network Considering the Failure in Switching on Transmission Lines

Author: LiuGuoLiang
Tutor: GuXuePing
School: North China Electric Power University
Course: Proceedings of the
Keywords: Black start Transmission Network Reconfiguration Line put into operation Critical path Betweenness Vulnerability assessment
CLC: TM732
Type: Master's thesis
Year: 2011
Downloads: 28
Quote: 0
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Abstract


Grid restoration plan for the reconstruction operation of the transmission grid after a blackout , if some of the key lines of the plan put into operation fails , the system will seriously affect the recovery process . For more comprehensive assessment of the reliability of the implementation of the recovery program is of great significance to study transmission lines put into operation on the grid reconstruction scheme . Firstly, considering the unit 's startup time limit , the maximum capacity of the units to the shortest possible time to start as the objective function , the application of cross- PSO and the shortest path algorithm as an optimization algorithm for network reconfiguration after the blackout , network reconfiguration recovery sequence optimization of a recovery program in a certain line put into operation failed and thus determine the optimal recovery sequence optimization method . On this basis , combined with the blackout lose power grid restoration process line put into operation failed to draw the line in the complex network theory betweenness index concept defines a relative line betweenness index , to characterize the line the extent of available grid recovery program , and on this basis , combined with the line put into operation failed grid recovery program to restore the effect the line key index of the grid recovery program as a key line of standard identification scheme . Consider the grid to restore the relative likelihood of failure line put into operation in the program , combined with the blackout grid grid line put into operation after the failure of the recovery process to form a new optimal recovery program and restore the program line establish assess lose power grid risk indicators and put into operation , and with the recovery program of the proposed index analysis initially developed by certain sets of grid lines put into operation risk . Analysis to the IEEE30 bus systems as an example , the identification corresponding grid to restore the critical line in the program , and the formation of a number of sets of recovery program line put into operation risk assessment . Numerical results verify the effectiveness of the proposed indicators , so as to further improve the evaluation system of the grid recovery program , has practical significance for guiding the recovery operation .

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CLC: > Industrial Technology > Electrotechnical > Transmission and distribution engineering, power network and power system > Power system scheduling, management, communication > The operation of the power system
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