Enhanced Active Filter for Single-Phase Controlled Rectifier Applications

A Single-Phase Controlled Rectifier with Unity Power Factor

An approach recently introduced to correct the power factor of single-phase and three-phase diode rectifiers is extended to single-phase line-frequency phase-controlled rectifiers. First of all, the conventional circuit of the thyristor based rectifier is proposed to be modified in order to make possible the control of the DC-voltage mean value also in presence of a fully resistive behaviour of...

Compensation Strategies for Shunt Active Power Filter in Single- and Three-Phase Systems: Different Formulation, Comparison and Evaluation

EMI Filter Design of a Three-Phase Buck-Type PWM Rectifier for Aircraft Applications

An EMI filter for a three-phase buck-type medium power pulse-width modulation rectifier is designed. This filter considers differential mode noise and complies with MIL-STD461E for the frequency range of 10kHz to 10MHz. In industrial applications, the frequency range of the standard starts at 150kHz and the designer typically uses a switching frequency of 28kHz because the fifth harmonic is out...

Single Phase to Three Phase Drive System Using High Power Density Single Phase Pwm Rectifier with Active Ripple Energy Storage

The main objective of this project is single-phase to three-phase drive system composed of High power density PWM rectifiers with active ripple energy storage.The proposed topology permits to reduce the rectifier switch currents, the harmonic distortion at the input converter side and presents improvements on the fault tolerance characteristics. With the decrease in the number of switches, the ...

Digital Repetitive Controlled Three-Phase PWM Rectifier

In this paper, a digital repetitive control (RC) strategy is proposed to achieve zero tracking error for constant-voltage constant-frequency (CVCF) pulse width modulation (PWM) converters. The proposed control scheme is of “plug-in” structure: a plug-in digital repetitive controller plus a conventional controller (e.g., PD controller). The design of the plug-in repetitive learning controller is...