Planning of Renewable Energy Base in Desert Area With the Goal of Best Comprehensive Benefits

Under the call of global energy conservation and emission reduction, the construction of renewable energy bases in desert areas can effectively promote the green and low-carbon transformation of the power system. Desert areas have low construction costs and abundant renewable resources. However, due to the strong randomness of wind and photovoltaic power resources, their investment and operation benefits are not optimistic when only energy value is considered. In fact, the construction of renewable energy in desert areas has benefits such as ecological improvement, water and soil conservation, and reduction of carbon emissions. Therefore, this paper puts forward the objective function based on the optimal comprehensive benefit, and comprehensively considers the factors such as economic benefit, low-carbon benefit, ecological benefit, wind and photovoltaic curtailment penalty. On this basis, the planning model of desert renewable energy transmission base is established. At the same time, the stochastic robust programming method is used to consider the uncertainty interval of the output of renewable energy, and the capacity planning can adapt to the extreme bad scenario is obtained. Compared with conventional planning methods, the proposed planning scheme is proved to have better energy input recovery and comprehensive benefits.