Energy Storage Capacitor Optimization of Power Fluctuation Suppression System with Pulse Load

The power fluctuation phenomenon caused by complex mode of the pulse load has serious influence on stability of the micro grid with the pulse load. Firstly, a new radar power supply system architecture with Power Fluctuation Suppression Converter (PFSC) is proposed, and the characteristics of power supply system with the pulse load are analyzed. Secondly, according to the demand of the power fluctuation suppression, a power fluctuation control strategy with current loop and power loop is given based on the boost topology. Based on the conservation of energy, the capacitance of the energy storage capacitor is analyzed. The method on computing the minimum of energy storage capacitor is obtained by the theoretical analysis. Finally, considering a micro grid system with the pulse load, the power supply system is designed and simulated. The results verify the effectiveness of the proposed control strategy and the calculation method, which lay a theoretical foundation for the design of large scale power supply system under the pulse load. It has been applied in engineering and has good engineering application value.