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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 Name | Affiliation | E-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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