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The stability of grid-connected voltage-source inverters (VSI) is deteriorated in a weak grid due to the interaction between the increasing grid impedance and the inherent inverter impedance. To improve the stability of LCL-filtered VSI, an impedance-phase reshaping method is proposed in paper. With this output current feedback compensator, the phase margin at the impedance intersection can be improved...
When designing a large-scale space power system using direct current such as international space station (ISS), special attention must be directed to the electric stability and control of the system and individual load on the systems. The principle of the stability criterion, a minimum gain and phase margin is based on the complex load and source impedances at the system interface. Japan Aerospace...
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