Experimental Comparison of Digital Implementations of Single-Phase PFC Controllers

Rao, V.M.; Jain, Amit; Reddy, K. Ashoka; Behal, Aman

doi:10.1109/tie.2007.904016

Cited by 49 publications

(31 citation statements)

References 26 publications

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“…First, for the classic controller shown in Figure 7, the control structure directly depends on the output signal of a voltage error amplifier (which contains a second harmonic component) and the input rectified sine wave voltage. As explained in [20], the linear controller ends up leading to higher levels in the third harmonic of the input current. To minimize this aggravating factor, the control loop is intentionally slow.…”

Section: Proposed Adaptive Non Linear Control Lawmentioning

confidence: 97%

“…In this case, an expressive third order harmonic component can appear. As suggested in [19,20], it is necessary to allocate the crossover frequency of the control at least three times less than the AC input frequency, which makes the control system naturally slow.…”

Section: Numerical and Initial Implementations For Sepic Dcm Pfcmentioning

confidence: 99%

“…The integral action, given by (20), can also be included in the control law. We list the following advantages of the proposed law:…”

Section: Sepic Ccm Sepic Dcmmentioning

confidence: 99%

“…Again, the integral action, given by (20), can also be added. In order to illustrate how to insert this term in the control law, just replace the desired variable in the output voltage (V * o ) by the integral of the error between the measured variable (v o ) and the reference constant value (V * o ).…”

Section: Revised Sepic As a Boost Converter And Derived Equationsmentioning

confidence: 99%

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Adaptive and Nonlinear Control Techniques Applied to SEPIC Converter in DC-DC, PFC, CCM and DCM Modes Using HIL Simulation

et al. 2018

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Abstract:In this paper, we propose adaptive nonlinear controllers for the Single-Ended Primary Inductance Converter (SEPIC). We also consider four distinct situations: AC-DC, DC-DC, Continuous Conduction Mode (CCM) and Discontinuous Conduction Mode (DCM). A comparative analysis between classic linear and nonlinear approaches to regulate the control loop is made. Three adaptive nonlinear control laws are designed: Feedback Linearization Control (FLC), Passivity-Based Control (PBC) and Interconnection and Damping Assignment Passivity-Based Control (IDAPBC). In order to compare the performance of these control techniques, numerical simulations were made in Software and Hardware in the Loop (HIL) for nominal conditions and operation disturbances. We recommend adaptive controllers for the two different situations: Adaptive Passivity-Based Feedback Linearization Control (APBFLC) for the PFC (Power Factor Correction) AC-DC system and IDAPBC-BB (IDAPBC Based on Boost converter) for the regulator DC-DC system.

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Section: Proposed Adaptive Non Linear Control Lawmentioning

confidence: 97%

Section: Numerical and Initial Implementations For Sepic Dcm Pfcmentioning

confidence: 99%

“…The integral action, given by (20), can also be included in the control law. We list the following advantages of the proposed law:…”

Section: Sepic Ccm Sepic Dcmmentioning

confidence: 99%

Section: Revised Sepic As a Boost Converter And Derived Equationsmentioning

confidence: 99%

See 2 more Smart Citations

Adaptive and Nonlinear Control Techniques Applied to SEPIC Converter in DC-DC, PFC, CCM and DCM Modes Using HIL Simulation

et al. 2018

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“…Reference [14] proposes a multiple controller technique to improve the total harmonic distortion (THD) by considering multiple control models according to the magnitude of the input voltage. On the other hand, many studies about the digital control of PFC converters have been conducted because their interface is flexible in digital control system [15]- [18]. In [16], a diode current sampling technique is proposed to simplify the signal conditioning circuit and to achieve digital average current mode control.…”

Section: Introductionmentioning

confidence: 99%

Digital Control Strategy for Single-phase Voltage-Doubler Boost Rectifiers

Cho¹,

Mok²,

Ji³

et al. 2012

Journal of Power Electronics

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In this paper, a digital controller design procedure is presented for single-phase voltage-doubler boost rectifiers (VDBR). The model derivation of the single-phase VDBR is performed in the s-domain. After that the simplified equivalent z-domain models are derived. These z-domain models are utilized to design the input current and the output dc-link voltage controllers. For the controller design in the z-domain, the traditional K-factor method is modified by considering the nature of the digital controller. The frequency pre-warping and anti-windup techniques are adapted for the controller design. By using the proposed method, the phase margin and the control bandwidth are accurately achieved as required by controller designers in a practical frequency range. The proposed method is applied to a 2.5 kVA single-phase VDBR for Uninterruptible Power Supply (UPS) applications. From the simulation and the experimental results, the effectiveness of the proposed design method has been verified.

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QPR and duty ratio feed‐forward control for vienna rectifier of HVDC supply system

Dang

Tong

Huang

et al. 2017

IEEJ Transactions Elec Engng

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The grid current of a Vienna rectifier will change from the continuous conduction mode (CCM) to the discontinuous conduction mode (DCM) when the load current or the inductance decreases. This deteriorates the grid current. Therefore, a strategy based on the variable duty ratio feed-forward and quasi-proportional-resonant (QPR) combined control is put forward, by introducing the needed duty ratio to the original output of current inner loop, whereby the pressure of the inner loop is effectively reduced. The working mechanism of the Vienna rectifier is first analyzed. The transfer functions of CCM and DCM between duty ratio and grid current are then built. At the same time, the parallel multi-QPR harmonic compensators are adopted in the current inner loop to effectively eliminate the specific harmonic pollution. To verify the correctness and effectiveness of the proposed strategy, a 5.3-kW prototype under digital control is established. The simulation and experimental results show that both the steady and transient performance of the proposed strategy are better under the fixed current inner loop parameters, the current zero crossing distortion can be eliminated, and the current quality acquired under the transformation between CCM to DCM can be further improved.

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Experimental Comparison of Digital Implementations of Single-Phase PFC Controllers

Cited by 49 publications

References 26 publications

Adaptive and Nonlinear Control Techniques Applied to SEPIC Converter in DC-DC, PFC, CCM and DCM Modes Using HIL Simulation

Adaptive and Nonlinear Control Techniques Applied to SEPIC Converter in DC-DC, PFC, CCM and DCM Modes Using HIL Simulation

Digital Control Strategy for Single-phase Voltage-Doubler Boost Rectifiers

QPR and duty ratio feed‐forward control for vienna rectifier of HVDC supply system

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