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This paper presents the study, design and simulation of a laboratory module related to filters. With this laboratory platform it was accomplish a comparative study between current feedback (CFA) and voltage feedback (VFA). Because the laboratory platform has an educational role, it was presented some practical aspects of active filters measurement and also the differences between the measured values...
Bi-directional inductive power transfer (BD-IPT) systems are becoming popular as a technology suitable for implementing vehicle-to-grid (V2G) systems due mainly to convenience, simplicity and safety offered by this technology. Although a number of grid integration technologies suitable for BD-IPT systems have been proposed in the past, a comparison between these technologies is yet to be presented...
A power management control method is proposed for the three-phase-to-single-phase matrix converter (MC)-based solid state transformer (SST) linking two grids. The MC-SST presents low weight and high controllability with respect to a conventional line-frequency transformer. Moreover, the single-stage ac-ac power conversion and compact volume are achieved compared to a three-stage SST, owing to the...
In this paper, a new active-only integrator which can be used to realize low frequency filters with small chip area is presented. The circuit can be effectively implemented using transconductance elements and its integration frequency is electronically controllable. In order to illustrate its usefulness, a second-order multifunction filter with low cut-off frequency, yet which occupy a small chip...
Capacitance and tan δ measurements are usually carried out to check the healthiness of an insulation. Measuring equipment based on different methodologies to test insulation in cables, transformer bushings etc. are available. This paper presents the development of such a measuring equipment for a high voltage (HV) laboratory of a University. The design is divided into three parts as filter unit, test...
One of the most popular issues in the power distribution is the quality improvement due to the increased usage of power electronic based loads. This paper analyse the performance of Unified Power Quality Conditioner which is the combination of Series Active Power Filter (SAPF) and Shunt/Parallel Active Power Filter (PAPF) sharing a common DC bus capacitor. A Left Shunt UPQC (LS-UPQC) configuration...
This paper presents an electronically tunable biquadratic filter and a third order quadrature oscillator using current controlled differential voltage current conveyors and grounded capacitors. The proposed circuits are electronically tunable versions of recent analog functions and use only grounded capacitors, thus making them integrable. The PSPICE simulation results, using the TSMC MOSIS 0.25μm...
The objective of this paper is to investigate performance of proportional-integral (PI) and fuzzy controllers for Shunt Active Power Filter (SAPF). Instantaneous reactive power theory (IRP) and synchronous reference frame theory (SRF) are used to generate reference current signals of SAPF. DC capacitor voltage is maintained constant using PI, Mamdani fuzzy and Takagi-Sugeno (TS) fuzzy controllers...
Current source inverter (CSI-fed induction motor drives are commonly used for high power applications without necessity to fast dynamic response. Although these kind of drives are more economic in high power ratings, they have some inherent disadvantages, that limit their applications. In this paper, in addition to presenting vector control system of CSI-fed induction motor drives, a novel method...
An on-chip buck converter with 3D chip stacking is proposed and the operation is experimentally verified. The manufactured converter achieves a maximum power efficiency of 62% for an output current of 70mA with a switching frequency of 200MHz and a 2x2mm on-chip LC output filter in 0.35mum CMOS. The use of glass epoxy interposer to increase the maximum power efficiency up to 71.3%, and the power efficiency...
In this paper, the characteristics of the basic current mirror and the continuous-time current-mode current mirror integrator are analyzed. Using the two unlossy loop integrators and the basic current mirrors, the biquad circuit block is implemented. The signal flow graph (SFG) and the improved leap-frog (ILF) structure are simple to implement the six-order band pass filters. Exploring PSPICE9.1 simulation...
An on-line tuning system based on the master-slave technique is proposed in this paper. The system is realized by employing only operational transconductance amplifiers (OTAs) for the realization of all stages. As a result, attractive offered benefits are the suitability of implementation of the resulted configurations in both integrated and discrete- component forms. In addition, an advantage of...
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