Design and Implementation of Paralleled Multi-Inverter Systems with Redundancy and Hot-swap Features

Design and Implementation of Paralleled Multi-Inverter Systems with Redundancy and Hot-swap Features author (eng)：JIA-Wei He INSTITUTE OF ELECTRICAL ENGINEERING COLLEGE OF ENGINEERING NATIONAL CHUNG CHENG UNIVERSITY -2004
This thesis proposes redundancy and hot-swap features for paralleled multi-inverter systems with voltage control and current weighted distribution control (CWDC) strategy. With a CWDC strategy, instantaneous current is fed back and monitored; thus, weighted output current distribution and fast regulation among the inverters can be achieved for linear and nonlinear loads. Additionally, the proposed paralleled system is equipped with the features of redundancy and hot-swap; therefore, system power rating can be expanded readily and it has high maintainability. Simulation results and hardware measurements from a two-inverter system with either equal or different power ratings have demonstrated the feasibility of the proposed control scheme in fast regulation and weighted current distribution. The proposed redundancy and hot-swap features have improved reliability and stability of the paralleled multi-inverter system.
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