Two methods for controlling three‐time fundamental frequency neutral‐point voltage oscillation in a hybrid VIENNA rectifier

Virtual Flux Based Direct Power Control on Vienna Rectifier

This paper proposes the virtual flux based direct power control for Vienna rectifier. No need for the input voltage sensors, the current regulation loop and PWM voltage modulation block along with the active and reactive power decoupling are some of the salient advantages of this method that make it suitable for controlling the conventional active rectifiers. However, due to the three-level nat...

Uncertainty in fundamental natural frequency estimation for alluvial deposits

Seismic waves are filtered as they pass through soil layers, from bedrock to surface. Frequencies and amplitudes of the response wave are affected due to this filtration effect and this will result in different ground motion characteristics. Therefore, it is important to consider the impact of the soil properties on the evaluation of earthquake ground motions for the design of structures. Soil ...

Three-phase Unity-Power-Factor VIENNA Rectifier with Unified Constant- frequency Integration Control

Abstract: A Unified Constant-frequency Integration (UCI) controller for a three-phase three-switch three-level rectifier (VIENNA) with unity-power-factor-correction is proposed. One advantage of the VIENNA rectifier is that the switch voltage stress is one half of the total output voltage so that MOSFETs can be used. The proposed control approach is based on onecycle control and features great ...

Vienna Rectifier Technology Package " Vr73 " M-pec Power Electronics Consulting

Auditory-Model Based Methods for Multiple Fundamental Frequency Estimation

This chapter describes fundamental frequency (F0) estimation methods that make use of computational models of the human auditory perception and especially pitch perception. At the present time, the most reliable music transcription system available is the ears and the brain of a trained musician. Compared with any artificial audio processing tool, the analytical ability of human hearing is very...