Design of a Simple OTA-based Mixed-Signal Controller for Adaptive Control System of Shunt Active Power Filter

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Provided by: WSEAS
Topic: Hardware
Format: PDF
In this paper, the authors present a simple mixed-signal controller using OTA (Operational Transconductance Amplifier) - based circuit for the adaptive control system of shunt active power filter (APF). The DC bus voltage detection method is proposed for the control scheme. The simple OTA multiplier circuit, OTA-C Canonical second-order filter circuit and OTA-C plus OTA summator circuit is designed for the reference-sine-wave signal generator including low pass filter and PI controller. The LM13700 is represented for the OTA simulated model which is developed for using with the 50 Hz three-phase three-wire system utility.
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