Power electronics are a core enabling technology for local area power networks and microgrids for renewable energy, telecom, data\r\ncenters, and many other applications. Unfortunately, the modeling, simulation, and control of power electronics in these systems\r\nare complicated when using traditional converter models in conjunction with the network nodal equations. This work proposes\r\na change of variables for the power electronic converter models from traditional voltage and currents to input conductance and\r\nstored energy. From this change of state, a universal point of load converter model can be utilized in the network nodal equations\r\nirrespective of the topology of the converter. The only impact the original converter topology has on the new model is the bounds\r\non the control and state variables, and the mapping back to the switching or duty cycle controls. The proposed approach greatly\r\nsimplifies the modeling of local area power networks and microgrids. This simpler model can be used to study stability and energy\r\nutilization and develop high-level control strategies that were not previously feasible.
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