Controlling power factor correction converter for single-phase AC power source without line voltage sensor

Notohara, Yasuo; Suzuki, Takahiro; Endo, Tsunehiro; Umeda, Hisashi; Okuyama, Atsushi; Funayama, Yuji; Tamura, Kenji

doi:10.1109/ipec.2010.5542200

Cited by 8 publications

(5 citation statements)

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“…In particular, a low switching frequency of 15kHz is used to investigate the effectiveness and performance of the proposed control. Meanwhile most PFC applications use a relatively high switching frequency in the range of 40kHz~130kHz [5], [7]- [9], [12], [14], [16]- [23], [25]- [27], and only two papers [6], [11] use 16kHz and 24kHz, respectively, to validate their performance in low switching frequency applications. For an evaluation of the performance, the converter operation under three control strategies with a 1 kHz bandwidth of the current compensator was simulated: 1) without employing any feed-forward controllers, 2) with the conventional voltage feedforward control, and 3) with the proposed IIC feedforward control.…”

Section: Simulation Resultsmentioning

confidence: 99%

“…Combining a simple current control law and the conventional voltage feedforward control duty, a new feedforward control signal can be expressed under the assumption that the power factor value is unity [6], [7], [27], [28]. 2 , …”

Section: A Derivation Of the Iic Feedforward Controlmentioning

confidence: 99%

“…This approach is more suitable in analog implementations. Extended versions of the NLC for digital implementation, digital nonlinear carrier (DNLC) methods, have been reported in [6]- [8]. [6] and [7] used only an instantaneous input current and a proportional gain for controlling the dc-link voltage.…”

Section: Introductionmentioning

confidence: 99%

“…Extended versions of the NLC for digital implementation, digital nonlinear carrier (DNLC) methods, have been reported in [6]- [8]. [6] and [7] used only an instantaneous input current and a proportional gain for controlling the dc-link voltage. A partial switching operation is used to reduce the switching losses in [6], and a low-cost solution using a low-resolution DPWM and low-resolution A/D converters is used in [7].…”

Section: Introductionmentioning

confidence: 99%

“…[6] and [7] used only an instantaneous input current and a proportional gain for controlling the dc-link voltage. A partial switching operation is used to reduce the switching losses in [6], and a low-cost solution using a low-resolution DPWM and low-resolution A/D converters is used in [7]. In addition, a DNLC with a variable slope ramp has been presented in [8] to reduce the complexity of integrated circuit realization.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Input Impedance and Current Feedforward Control of Single-Phase Boost PFC Converters

Park¹,

Park²,

Bazzi³

2015

Journal of Power Electronics

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The combination of voltage feedforward and feedback control is a conventional approach for correcting the power factor in single-phase ac-dc boost converters. The feedback duty ratio increases significantly with an increase of the line frequency and input inductance. Therefore, the performance of the conventional approach is highly dependent on the bandwidth of the feedback controller. As a result, the input power quality can be significantly exacerbated due to uncompensated duty ratios if the feedback controller is limited. This paper proposes an input impedance and current feedforward control method to reduce the control portion of the feedback controller. The findings in this paper are 1) the theoretical derivation and analysis of variations of line frequency and input inductance on a power factor correction approach, 2) guaranteed consistent performance in a wide range of conditions, and 3) that a low switching frequency can be utilized by the proposed method. A MATLAB/Simulink model and a 1.2kW dual boost converter are built to demonstrate the effectiveness of the proposed method.

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