Link Capacitor Control for Converter Weight Reduction

The patent applies dynamics by transitioning from a static, continuous energy storage approach to a dynamic, intermittent energy transfer approach. The bulk capacitor is replaced with a much smaller capacitor that operates in conjunction with actively controlled switches that dynamically connect and disconnect energy storage elements. This dynamic switching allows the system to maintain voltage stability without requiring a large permanent energy storage capacity, thereby reducing weight while preserving voltage stiffness during operation.

The patent implements periodic action through pulsed energy transfer cycles. Instead of continuously storing energy in a large capacitor, the system uses small capacitors that are periodically charged and discharged through controlled switching sequences. The switches operate in periodic cycles to transfer energy from the source through the capacitor to the load, maintaining average voltage stability over time while using minimal energy storage capacity. This periodic operation eliminates the need for large bulk capacitors while preserving the essential voltage stiffening function.

The patent applies segmentation by dividing the energy transfer function into multiple discrete switching operations rather than relying on a single large energy storage element. The system segments the switching period into multiple subcycles, with each subcycle performing a portion of the overall energy transfer task. This segmentation allows the use of multiple small capacitors instead of one large capacitor, achieving the same total energy transfer capacity with reduced volume. The switching network is segmented into multiple controllable paths that collectively provide the required energy storage and transfer capability.

The patent uses dynamics to replace static energy storage with dynamic energy transfer. Instead of a large capacitor providing continuous energy buffering, the system dynamically transfers energy through controlled switching sequences. The small capacitor works in conjunction with actively managed switches that dynamically connect energy sources and loads in specific sequences, providing the appearance of large energy storage through rapid, controlled energy transfer cycles rather than actual large-capacity storage.