Site selection and constant volume optimization planning method for energy storage device in comprehensive energy system

The invention discloses a site selection and constant volume optimization planning method for an energy storage device in a comprehensive energy system. According to the method, when an energy storagedevice is connected to a power distribution network node, an energy storage site selection multi-objective optimization model taking node voltage fluctuation, system load fluctuation and minimum energy storage configuration cost as objectives and taking power grid safety constraint, system operation power balance constraint, heat supply network constraint, cooling network constraint and energy storage operation constraint as constraints is established. In the model solving process, a fitness and interest difference sorting method is applied, weighting coefficients of different target functions are set through a quantitative method, the multi-target function optimization problem is integrated into a single-target function optimization problem, and the optimal access position and the optimal configuration capacity of the energy storage device are obtained through solving by using a particle swarm algorithm of simulated annealing.