DC microgrid voltage control method and computer readable medium

The invention provides a DC micro-grid voltage control method and a computer readable medium. The method comprises the following steps: inputting load and line data of a direct-current micro-grid, and constructing a direct-current micro-grid model; secondly, considering the uncertainty of the system, constructing a direct-current micro-grid model state equation, calculating a dynamic matrix representing the state of the power grid, constructing a direct-current micro-grid model voltage control optimization model by utilizing eigenvalue analysis, and designing corresponding constraint conditions; and finally, solving the optimization model by adopting an improved particle swarm algorithm, outputting a globally optimal solution, determining optimal control parameters of a voltage controller when system conditions change, and realizing real-time control of the voltage of the direct-current micro-grid. The method has the advantages that the objective function of the optimization model is defined through character