Metastability Approximation of Pulsed-Power Loads

Document Type

Conference Proceeding

Publication Date



Department of Mechanical Engineering-Engineering Mechanics


As a result of the rising utilization of electric power in aircraft and naval ships, pulse loads are showing up on power electronic distribution systems with greater frequency. However, pulse loads are another component that adds to the instability of the power distribution system. Small-signal analysis has often been employed to research the stability of these systems. However, it is not feasible to accurately determine the system's stability using small-signal methods because pulsed loads are highly nonlinear. In previous works, the nonlinear method, Hamiltonian Surface Shaping and Power Flow Control (HSSPFC), has proven to predict the metastability bounds for pulse power systems accurately, but this method is computationally intense. This paper proposes an analytic approximation to the HSSFPC metastability surface that has reasonable accuracy but has a significantly lower computational cost to produce. The proposed approximate method will be applicable for use in system design as well as real-time control applications with pulsed-power loads.

Publication Title

2023 IEEE Energy Conversion Congress and Exposition, ECCE 2023