2010•East China Electric PowerRequires access
Transmission and Distribution Joint Power Flow Calculation in Full Voltage Series Network Planning
Dong Liu
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Abstract
According to requirements of full voltage series planning,the computation of embedded transmission and distribution joint power flow was proposed to planners to get timely and accurate power flow calculation.Based on the characteristics of the actual grid,the network topology was simplified firstly.On this basis,the large-scale transmission and distribution joint power flow was decomposed into transmission power flow and a series of small-scale distribution feeder power flows,and the power flow algorithm was unified.Actual grid was used as an example to perform the calculation;the results proved that the joint power flow calculation in full voltage sequence planning could meet the fast computation requirements for the real-time power flow calculation of large-scale transmission and distribution grid.