METHOD AND SYSTEM ADAPTED TO REGENERATE LOAD ENERGY IN AC-TO-DC AND DC-TO-AC POWER CONVERTER SYSTEMS

摘要

An energy regenerating system includes a converter, an inverter, and a supplemental power source. The converter and the inverter are electrically connected to each other to define an electrical loop such that energy of the energy regenerating system is regenerated. The converter, the inverter, and the supplemental power source are arranged such that, when current flows in the electrical loop, the converter is a load on the inverter and the inverter is a load on the converter. The supplemental power source is arranged to replenish energy losses in the energy regeneration system, including energy losses in the electrical loop caused by the converter and the inverter.