Stochastic Transient Simulation Method Based on Dynamic Phasor

To accurately and efficiently realize the simulation of stochastic DC distribution systems, this paper develops the method called stochastic transient simulation based on dynamic phasor. The dynamic phasor models of deterministic linear lumped elements and linear lumped elements with parameter migration are established firstly. Secondly, the dynamic companion circuits of elements are further established by inheriting the principle of companion circuit, and then companion circuit of RLC simple circuit is constructed, as well as the nodal voltage equations. Finally, the stochastic transient simulation based on dynamic phasor was implemented in MATLAB/Simulink. Through the comparison with the full electromagnetic transient simulation, the accuracy of DP-based stochastic transient simulation was demonstrated, as well as the efficiency of the hybrid simulation.