Region-province coordinated real-time dispatch model considering large-scale power loss
DOI:10.7667/PSPC20191216
Key Words:region-province coordination  real-time dispatch  large-scale power loss  provincial dispatching units  regional dispatching units
Author NameAffiliationE-mail
LUO Zhiqiang National Electric Power Dispatching and Control Center, Beijing 100031, China  
YANG Junfeng National Electric Power Dispatching and Control Center, Beijing 100031, China  
WANG Qixiang State Grid Luoyang Power Supply Company, Luoyang 471000, China
School of Electrical Engineering & Automation, Harbin Institute of Technology, Harbin 150001, China 
wang_qx1204@163.com 
HU Linxian School of Electrical Engineering & Automation, Harbin Institute of Technology, Harbin 150001, China  
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Abstract:Failure of high-power AC/DC tie-line will lead to large-scale power loss in the receiving-end power grid, and a part of the provincial units are dispatched by the provincial power grid (P-Units), the other part is dispatched by the regional grid (R-Units). In view of the above problems, the coordinated adjustment strategy of real-time generation plan for regional and provincial dispatching units is studied. Firstly, the models for the allocation of active power adjustment and output tracking between P-Units and R-Units are constructed. For the cases that P-Units or R-Units might not be able to track the allocated active power adjustment, a coordination strategy for active power of P-Units and R-Units is proposed, followed by an output correction model. Together, a set of real-time scheduling methods coordinated P-Units and R-Units which are suitable for provincial power grid under large power loss are formed. Simulation result shows that compared with conventional real-time scheduling method, the proposed method is conducive to fast recovery of provincial grid active power balance after large-scale power loss. This work is supported by Science & Technology Project of State Grid Corporation of China (No. 5442dz180019) “Research and Application of Core Technology in Global Planning Decision and Spot Market” .
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