IEEE

Combining Common DC-Link Utilization and Zero-Sequence Injection for Power Balancing in Hybrid Cascaded H-Bridge PV Inverters

Abstract: Cascaded H-bridge converter (CHB) is from leading configurations for grid-connected photovoltaic (PV) systems with a distributed arrangement of PV panels. However, phase power imbalance is ...
IEEE

Adaptive Current Limiting and Common-Mode Voltage Injection for Maximizing Fault Current in Grid-Forming MMCs under Asymmetrical Faults

Abstract: Grid-forming modular multilevel converters (MMC) face challenges in maximizing fault current contribution under unbalanced grid faults due to internal dc circulating currents. This paper ...
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Toyota's legendary diesel refuses to die after more than three decades

Discover Toyota’s indestructible diesel masterpiece that is still in production three decades later.
Mass Transit

Amtrak restores Lake Shore Limited direct rail service after rail hole repair

The restoration will bring service back to 80,000 riders that utilize the line. Amtrak has restored Lake Shore Limited direct rail service between Albany-Rensselaer, N.Y., and Boston after several ...