A DSP based power factor correction converter to reduce total harmonic distortion of input current for improvement of power quality

Karaarslan, Ahmet; İskender, İres

doi:10.1007/s00202-011-0215-5

Cited by 19 publications

(14 citation statements)

References 15 publications

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“…When a converter operates in buck or boost regime, the signal v i is delivered through a non-linear compensation block defined by (12) or (13), which are shown in the 'controller' area in Fig. 3.…”

Section: Non-linear Compensationmentioning

confidence: 99%

“…The integrated chargers' configurations can be divided into two major categories: Singlephase [1,2,6,[8][9][10][11] or three-phase fast-integrated chargers [1][2][3][4]12]. The integrated converters are connected to the main grid, so it is necessary that they are working with the possibility of power factor (PF) correction as is discussed in [13][14][15], where the authors paid attention to digitalised algorithms. Researchers have studied integrated non-isolated single-stage chargers that combine ac-dc rectifiers and the propulsion machine's dc-dc converter.…”

Section: Introductionmentioning

confidence: 99%

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Control of integrated single‐phase PFC charger for EVs

Truntič

Konjedic

Milanovič

et al. 2018

IET Power Electronics

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This study discusses a converter structure appropriate for charging the batteries of an electric vehicle (EV). The structure is obtained by a transformation of a conventional three-phase inverter, which is already present in an EV's power-train system. Since the motor inverter's semiconductor components and the electric motor's windings form the battery charger's circuit, a reduction in the power-train system's size and weight is achievable. The proposed fully integrated battery charger operates alternately in two modes, buck and boost, while providing power factor (PF) correction capability continuously. This study also proposes an input current control strategy that ensures smooth operating mode transitions, which occur during the operation of a battery charger. The control is entirely implemented within a microcontroller and ensures operation with a high PF and low total harmonic distortion of the input current. The performance of the discussed converter using the proposed control scheme was verified experimentally.

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Section: Non-linear Compensationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Control of integrated single‐phase PFC charger for EVs

Truntič

Konjedic

Milanovič

et al. 2018

IET Power Electronics

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“…This is due to minimum number of semiconductor switches in the current path at any instant of operation which is two [26]. This topology is composed of two single-phase boost converters without input rectifier as used in other PFC circuits [27], [28]. The mathematical model of the converter during positive half cycle of ac input voltage is given in (1) and (2).…”

Section: The Analiysis Of Power Factor Correction Convertermentioning

confidence: 99%

The Application of Hardware in the Loop for Single Phase Converters Based on DSP Controller at Solar Energy Systems

Karaarslan¹

2016

IJOEE

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The purpose of this paper is to build an effective Hardware-in-the-Loop (HIL) simulation platform for developing and testing DSP-controlled power converters. The HIL is a form of real-time simulation and differs from conventional simulations. The real-time requirements for such simulations depend on the timescale of the process and the simulated components involved. A high-performance real-time simulation environment is necessary to obtain high precision results when time steps are too small. In this study, the detailed implementation of a very-low-cost real-time HIL simulation using open-source operating system and a relatively advanced hardware platform using averaged switch approach for the embedded controllers is presented. The proposed system consists of PC-based open-source Real Time Operation System (RTOS) and DSP. The sample rate of this system is reduced to 15 μs range based on RTOS. As an example, the HIL testing approach is applied for the controller design of AC-DC Power Factor Correction (PFC) converter. The consistency of the experimental results with the theoretical results proves the applicability of the proposed testing approach. This approach will be useful for power electronics application of solar systems.  Index Terms-hardware in the loop, real time, DSP, power converter, power factor correction, renewable energy

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“…Reducing of the current THD in the digitally controlled PFC boost converters can be done by using different techniques such as, the passive harmonic filters connecting in parallel with the input side, this technique can be used to reduce the THD in case of the low switching frequency PFC converters, however in case of the high frequency PFC converters where the EMI filters connecting in the input side of the converters, reliability of the passive filters to decrease the THD is very low due to the difficulty of the tuning of the filter's resonance frequency with the presence of the EMI filters [19]. Digital current filters such as finite response impulse (FIR), and infinite impulse response (IIR) filters can be optimally designed and used to moderate the feedback digital current signals for the inner current control loops to reduce the current error and hence reducing the current distortion, using of the adaptive FIR filter to reduce the THD of the CCM-bridgeless PFC converter was proposed in [20].…”

Section: Introductionmentioning

confidence: 99%

“…Another widely used technique to reduce the THD in PFC converters is the variable on-time (VOT) switching control technique by optimized the duty cycle of the PFC converter to decrease zero crossing distortion (ZCD) period [20][21][22][23], VOT switching control technique is reliable to reduce the THD in PFC converter but with complex mathematical analysis of the converter operation around the zero-crossing point in order to optimize the exact dead time around the zero-crossing point for exact on-time switching prediction [24]. This paper presents the small signal stability modeling of the conventional PFC boost converter proposed, and based on the signal stability model, an optimal integral-proportional (IP) current controller consists of double loop control strategy, where the integral gain feed forward to return the inductor current back to the reference set point, and the proportional gain implemented in the feedback path to increase the controller response.…”

Section: Introductionmentioning

confidence: 99%

Optimal IP Current Controller Design Based on Small Signal Stability for THD Reduction of High-Power Density PFC Boost Converter

Okilly¹,

Baek²

2020

Preprint

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This paper presents an optimal design for the inner current control loop of the continuous current conduction mode (CCM) power factor correction (PFC) stage, which it can be used as the front stage of the two stages alternating current-direct current (AC-DC) telecom power supply. Conventional single-phase CCM-PFC boost converter usually implemented with using of the proportional-integral (PI) controllers in both of the voltage and current control loops, to regulate the output DC voltage to the specified value, moreover to maintains the input current follows the input voltage which offers converter with high power factor (P.F) and low current total harmonic distortion (THD). However, due to the slow dynamic response of the PI controller at the zero-crossing point of the input supply current, input current can’t fully follow the input voltage which leads to high THD. Digitally controlled PFC converter with an optimal design of the inner current control loop using doubly control loops IP controller to reduce the THD and to offer input current with unity P.F was performed in this paper. Furthermore, for the economic design of the digitally control PFC converter, two isolated AC and DC voltage sensors are proposed and designed for the interfacing with the microcontroller unit (MCU). PSIM software was used to test the converter performance with using the proposed designed current controllers and isolated voltage sensors. High power density digitally controlled telecom PFC stage with P.F of about 99.93%, full load efficiency of about 98.70% and THD less 5.50% is achieved in this work.

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A DSP based power factor correction converter to reduce total harmonic distortion of input current for improvement of power quality

Cited by 19 publications

References 15 publications

Control of integrated single‐phase PFC charger for EVs

Control of integrated single‐phase PFC charger for EVs

The Application of Hardware in the Loop for Single Phase Converters Based on DSP Controller at Solar Energy Systems

Optimal IP Current Controller Design Based on Small Signal Stability for THD Reduction of High-Power Density PFC Boost Converter

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