The IPOPIPOP DAB dc-dc converter system is a promising candidate for achieving isolated dc-dc energy conversion with large current and power ratings. However, the existing schemes cannot realize the fast-dynamic control performance and the flexible power sharing controlPower sharing control scheme for the IPOP DAB dc-dc converter system. Therefore, a tunable power sharing control scheme with fast-dynamic responseDynamic response is proposed for the IPOPIPOP dc-dc converter system in this Chapter. Moreover, the hot-swap operati0n is investigated for the IPOP DAB dc-dc converter system. Besides, the comprehensive CPE methods are investigated for ensuring the desired power sharing performance of this converter system. In addition, the IIOPIIOP dc-dc converter system can be employed in the distributed power source application with multiple power sources. To realize the flexible extensionControl extension of the power capacity, a communication-free power management strategy with fast dynamic responseDynamic response is proposed for the IIOPIIOP DAB dc-dc converter system in this Chapter. Furthermore, the hot-swap operationsHot-swap operation are discussed for the IIOP DAB dc-dc converter system.