A high-speed electric vehicle (EV) charging station needs to deliver 350 kW of DC power to a battery pack with a voltage of 400 V. However, the utility grid supplying the station provides three-phase AC power at 13.8 kV. Design a power conversion system for this charging station, considering the following challenges:

1. High Efficiency: Minimize energy loss during the conversion process to reduce operating costs and heat generation.

2. Power Factor Correction: Ensure the charging station presents a near-unity power factor to the utility grid to avoid penalties for poor power quality.

3. Fast Response Time: The system should be able to rapidly adjust the output voltage to match the varying voltage needs of the battery pack during charging.

4. Safety: Implement safety features to protect personnel and equipment from electrical hazards like overcurrents and ground faults.

What components would you include in your design, and how would you ensure they meet the aforementioned challenges?