Simulation of photovoltaic absorption strategy for distribution network considering translational load

Large scale photovoltaic grid connection will lead to the voltage over the limit of node voltage in distribution network. In view of the problem of photovoltaic discarding caused by the voltage limit, an optimization model for coordinated scheduling is established in this paper. The objective of this model is to minimize the light weight of photovoltaic, and to optimize the target by means of a variety of measures including the SL, the coordinated photovoltaic power and the static var compensator. Because the power flow equation in the model is nonconvex and nonlinear, the two order cone relaxation of the load flow equation is used to transform the model into a convex optimization problem. Considering the difference in the duration of shiftable load, this paper models it. Finally, in this paper, a typical distribution network in Feixi county is selected as an example to simulate and compare the three scenarios of photovoltaic degradation, proving the correctness and feasibility of the establishment of the model.