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Research on the Effect of Thermal Units’ Start-up Time on Power System Restoration

Author: ZhouMin
Tutor: LiuYan
School: North China Electric Power University
Course: Agricultural Electrification and Automation
Keywords: Black start Network Reconfiguration Startup Characteristics of the thermal power units Parallel recovery Transfer path
CLC: TM732
Type: Master's thesis
Year: 2011
Downloads: 31
Quote: 0
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Abstract


Network reconfiguration stage is an important stage in the process of the power system black start , its system structure continued to change and control operations frequently affected by many uncertainties . To fire motor group as the main constituent of the system , the start time of the unit will determine the grid reconstruction speed after the blackout . The plant centralized control run simulation machine for the first time to start the process of thermal power units , the in-depth study to establish units accumulated between the start time and unit downtime for a typical unit types . On this basis , a new grid reconfigurable parallel recovery strategy . The strategies available to each of the recovery phase of the starting power constraint, Unit will be restored node as the highest priority load node and other load node considered together , and Prim algorithm to find as much as possible parallel to the restoration path . For the the IEEE30 bus and IEEE57 node system verify the results show that : the reconstruction order to maximize the use of starting power , fight for multi - unit , multi- path while restoring effective compression grid reconfiguration time , improve the follow-up recovery efficiency is of great significance for the rapid and orderly organization of the system refactoring operation . At the same time get the crew recovery time to time information has important guiding significance of the grid after blackout reconstructed . In extreme cases they consider the grid unit startup failure after refactoring recovery , and IEEE30 bus system , for example , draw each unit startup failure after the transfer path , to assess recovery programs for different units start failure , identify which units to start the failure subsequent recovery system . Example is the analysis of the results showed that the effectiveness and practicality of the recovery strategy for scheduling staff to provide a more viable operation guidance .

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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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