作者: Ana M Llor , Samir Kouro , Carlos Reusser , Venkata Yaramasu , Bin Wu
DOI: 10.1109/ICIT.2017.7913072
关键词: Modulation index 、 Model predictive control 、 Topology (electrical circuits) 、 Pulse-width modulation 、 Network topology 、 Compensation (engineering) 、 Electronic engineering 、 Engineering 、 Voltage 、 Capacitor 、 Control theory
摘要: The double-star converter (DSC) is a recently introduced medium-voltage 4-level multilevel inverter topology, with reduced number of active switches. This topology has several advantages over existing commercial topologies (single dc-source, no clamping elements, bidirectional switches or flying capacitors), which can satisfy the needs medium voltage applictions such as pumps, fans and compressors. main challenge this balance three dc-link capacitors across modulation index range. Classic controllers require sophisticated PWM techniques closed loop compensation to maintain capacitor voltages balanced. In paper, control algorithm based on model predictive (MPC) applied DSC, allowing direct regulation output currents while simultaneously ensuring balance. Simulation results show effectiveness MPC when converter.