Improvement of One-Cycle Controller Response with a Current Mode Controller

Ruzbehani, Mohsen; Zhou, Luowei; Mirzaei, Nasser

doi:10.6113/jpe.2010.10.1.021

Cited by 5 publications

(1 citation statement)

References 13 publications

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“…Model based linear Average Current mode control proposed in [4] seems to work fine under predefined operating points, but its performance gets deteriorated with variable load conditions. Feed forward current mode control [5,6], mitigates the problems with averaged mode control by generating a duty cycle in proportion to the supply voltage and the desired output, but suffers from duty ratio saturation at converter start up and slow response to load variations. Digital controllers proposed in [7,8] have faster response to load variations, but are complex to implement.…”

Section: Introductionmentioning

confidence: 99%

Direct Power based Sliding Mode Control of AC-DC Converter with Reduced THD

2018

Teh. vjesn.

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Direct Power based Sliding Mode (DPSMC) control for controlling single phase AC-DC pre regulator assuring unity power factor and stable output voltage under load variation is proposed in this paper. Direct Power Based Control (DPC) commonly applied for three phase circuits, is combined with Sliding mode control (SMC) to control and regulate the single-phase AC-DC pre regulator. The proposed DPSMC apart from being simple to design and robust to parameter variations also helps in reducing the line current distortion inherent to AC-DC Converters. The design of the proposed power based sliding mode control along with its existence condition is discussed. The performance of the proposed method over conventional sliding mode control is assessed through computer simulations and the feasibility of the proposed controller is confirmed through experimental implementation carried out with the help of LabVIEW and sbRIO FPGA development board.

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Section: Introductionmentioning

confidence: 99%

Direct Power based Sliding Mode Control of AC-DC Converter with Reduced THD

2018

Teh. vjesn.

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Outer loop filter for improvement of one‐cycle controller

Chararmart

Aurasopon

2018

IEEJ Transactions Elec Engng

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The One‐Cycle Control (OCC) has the ability to operate in line disturbance rejection and provide a faster dynamic response. However, when used as a controller in dc−dc converters, it might contribute to steady‐state error. Furthermore, the non−ideal circuit components may cause a duty cycle error due to the error of converter output voltage. We proposed a new technique to address the error in OCC by using the technique of an outer loop filter based on OCC, called Outer Loop Filter for improvement of One‐Cycle Control (OLF−OCC). This technique maintains a constant output voltage, despite power source voltage perturbation and error from the control circuit, such as circuit integrator voltage slope or input voltage offset. Variation results show that the performance of the proposed technique is more effective and reliable than the traditional approach when compared to the experimental state. OLF–OCC performance is discussed in terms of variation of power source voltage or internal disturbance from the control, such as circuit integrator voltage slope or input voltage offset. © 2018 Institute of Electrical Engineers of Japan. Published by John Wiley & Sons, Inc.

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