Single-Phase Active Power Harmonics Filter by Op-Amp Circuits and Power Electronics Devices

Single Power Supply Op-Amp Circuits

Operational amplifiers have traditionally been operated using dual power supplies–often +15 volts and -15 volts. However, that is not a requirement. An op-amp will operate with any upper and lower power supply voltage provided the voltage across the amplifier is less than maximum ratings and voltages at the terminals are within the specification range relative to the power supply voltages. This...

Harmonics Mitigation Using Active Power Filter

This paper is proposed to reconsider the development of active power filter (APF) technologies that are routinely utilized to mitigate harmonics in utility power lines. This reconsider can furthermore be considered as a “tutorial-type paper” as it provides a holistic coverage of the APF technologies by omitting the tedious details, but without losing the major essence of the subject matter. It ...

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

Mitigation of Switching Harmonics in Shunt Active Power Filter Based on Variable Structure Control Approach

This paper presents a novel control approach used in shunt active power filter based on variable structure control combined with Random PWM technique (RVSC) that provides robust, fast, and more favorable performance for active power filter. This control strategy is compared with two other strategies to show the effectiveness of the introduced methods; pulse width modulated proportional-integral...

Single-Phase Shunt Active Power Filter Using Indirect Control Method

A single-phase shunt active power filter is used mainly for the elimination of harmonics in single-phase AC networks. In this paper a single-phase shunt active power filter based on, an indirect control technique is designed and simulated. This control technique is achieved by phase shifting the input signal(voltage/current) by π/2.The overall action of the shunt active power filter to eliminat...