The busbars in high power neutral point clamped three-level inverters are modeled using the Maxwell Q3D Extractor software, which is based on the partial element equivalent circuits method. The equivalent circuits of the busbars and devices model are simulated in the electric simulator PSIM to analy...

High quality speed information is one of the key issues in machine sensorless drives, which often requires proper filtering of the estimated speed. This paper comparatively studies typical low-pass filters (LPF) and phase-locked loop (PLL) type filters with respect to ramp speed reference tracking a...

This paper has proposed a fault detecting method for DC supplied permanent magnet synchronize motor (PMSM) drive systems by monitoring the drive DC input current. This method is based on the fault signal propagation from the torque disturbance on the motor shaft to the inverter input currents. The a...

Multi-level converters have been used extensively in modern industry which calls for energy conversion with high-power and high-or medium-voltage. Because of its modularity and scalability, the multi-level converter with modular structure can be extended to different voltage levels and has a variety...

This paper proposes an on-load voltage distortion compensation method, in which the voltage distortion is mainly produced in the surface-mounted permanent magnet machines having closed slot. Apart from the voltage distortions caused by the inverter, such as dead time and inverter non-linearity, the ...