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《Journal of Electric Power Science and Technology》 2011-01
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Control strategy research for loss reduction of power plant's connecting transformer

HU Wei1,XU Fei1,YU Ji1,LU Jun2,WANG Wei2(1.State Key Lab of Power Systems,Depterment of Electrical Engineering,Tsinghua University,Beijing 100084,China;2.Hubei Electric Power Corporation,Wuhan 430077,China)  
The control strategy for loss reduction of power plant's connecting transformers is researched in this paper.Considering the non-stop operation state of the transformers,adjusting the output power of power plants,active and reactive power losses of the connecting transformers are thereby reduced.Learning and using the idea of rapid decomposition in power system calculation,the control strategy is divided into two steps.Namely,first adjust the generators active power,which can be used to adjust the active power flow of the connecting transformers,thereby reducing the power loss.Second,adjust the generators terminal voltage or reactive power,which can be used to adjust the voltage across the connecting transformers,thereby reducing the reactive power loss.Based on the actual operation data of the Chinese power grids,computer simulation results show the proposed control strategy is effective.
【Fund】: 国家自然科学基金(50607011);; 湖北省电力公司科技项目(20102001610)
【CateGory Index】: TM711
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