Comparison and combination of digital controls for single-phase boost PFC converters in avionic power systems

Cabezas, J.; González-Medina, Raúl; Figueres, E.; Garcerá, G.

doi:10.1109/isie.2017.8001322

Cited by 7 publications

(5 citation statements)

References 15 publications

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“…Firstly, the power-pulsation-associated voltage ripple in the measured signal is eliminated, either by a Moving-Average Filter (MAF) [51] (shown here) or a conventional low-pass filter. The output of this filter, the obtained average value vDC , is then compared to the reference V * DC , and the DC-link voltage control derives the average capacitor power P * C , which can be taken as the average grid power P * G , and is then used to generate the input current reference i * G for the grid current controller [52]. This results in the duty-cycle for the boost stage d B and the corresponding switching state of the unfolder leg S UN .…”

Section: Conventional Control Overviewmentioning

confidence: 99%

Novel Motor-Kinetic-Energy-Based Power Pulsation Buffer Concept for Single-Phase-Input Electrolytic-Capacitor-Less Motor-Integrated Inverter System

et al. 2022

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The motor integration of singe-phase-supplied Variable-Speed Drives (VSDs) is prevented by the significant volume, short lifetime, and operating temperature limit of the electrolytic capacitors required to buffer the pulsating power grid. The DC-link energy storage requirement is eliminated by using the kinetic energy of the motor as a buffer. The proposed concept is called the Motor-Integrated Power Pulsation Buffer (MPPB), and a control technique and structure are detailed that meet the requirements for nominal and faulted operation with a simple reconfiguration of existing controller blocks. A 7.5 KW, motor-integrated hardware demonstrator validated the proposed MPPB concept and loss models for a scroll compressor drive used in auxiliary railway applications. The MPPB drive with a front-end CISPR 11/Class A EMI filter, PFC rectifier stage, and output-side inverter stage achieved a power density of 0.91 KW L−1 (15 W in−3). The grid-to-motor-shaft efficiency exceeded 90% for all loads over 5 kW or 66% of nominal load, with a worst-case loss penalty over a conventional system of only 17%.

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Section: Conventional Control Overviewmentioning

confidence: 99%

Novel Motor-Kinetic-Energy-Based Power Pulsation Buffer Concept for Single-Phase-Input Electrolytic-Capacitor-Less Motor-Integrated Inverter System

et al. 2022

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“…Various control methods have been proposed for the stable operation of TBPFC. In [22,23], a digital notch filter is applied to remove the 120 Hz component of sensed DC-link voltage, and in [24], the authors presented a 120 Hz reduction method of the input current by adding a notch filter between the voltage and the current controller. To reduce a zero-current spike current, a partial open-loop operation method is proposed [25,26].…”

Section: Introductionmentioning

confidence: 99%

Digitalized Control Algorithm of Bridgeless Totem-Pole PFC with a Simple Control Structure Based on the Phase Angle

Lee,

Park,

et al. 2023

Electronics

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Compared to the conventional boost power factor correction (PFC) converter, a totem-pole bridgeless PFC has high efficiency because it does not have an input diode rectifier stage, but a current spike may occur when the polarity of the grid voltage changes. This paper proposes a digital control algorithm for bridgeless totem-pole PFC with a simple control structure based on the phase angle of grid voltage. The proposed algorithm has a PI-based double-loop control structure and performs DC-link voltage and input inductor current control. Rectifying switches operate based on the proposed rectification algorithm using phase angle information calculated through a single-phase phase-locked loop (PLL) to prevent current spikes. The feed-forward duty ratio value is calculated according to the polarity of the grid voltage and added to the double-loop controller to perform appropriate power factor control. The performance and feasibility of the proposed control algorithm are verified through a 3 kW hardware prototype.

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“…Power factor correction technology is one of the main means to reduce harmonic pollution in power grid [1] . Boost circuit topology and control strategy are the key research objects in this field [2][3][4] . Some nonlinear control algorithms are also used in power factor correction, such as differential flattening algorithm [5] , deadbeat control [6] , sliding mode variable control structure [7] .…”

Section: Introductionmentioning

confidence: 99%

Boost PFC Constant Voltage Control with Constant Power Load

Li¹,

Qiu²,

Li³

2020

dtcse

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The power factor correction (PFC) can be realized by the input-output linearization method for boost converter, The advantage is that the duty cycle of MOS transistor can be calculated directly without control parameter setting, but when the converter is connected to constant power load (CPL), because the duty cycle formula includes the ratio of output voltage to current, the load of Buck CPL has no current flow during the t off period, so the normal calculation results cannot be given. In order to solve the problem that the output duty cycle cannot be calculated, this paper starts from the relationship of equal input and output power, and merges resistance into the output terminal. At the same time, in order to reduce the power loss, the capacitor is connected to the original circuit to provide continuous current to correct the current discontinuity, and then the output voltage is precisely adjusted to realize the fast constant voltage control of Boost PFC converter under CPL.

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Comparison and combination of digital controls for single-phase boost PFC converters in avionic power systems

Cited by 7 publications

References 15 publications

Novel Motor-Kinetic-Energy-Based Power Pulsation Buffer Concept for Single-Phase-Input Electrolytic-Capacitor-Less Motor-Integrated Inverter System

Novel Motor-Kinetic-Energy-Based Power Pulsation Buffer Concept for Single-Phase-Input Electrolytic-Capacitor-Less Motor-Integrated Inverter System

Digitalized Control Algorithm of Bridgeless Totem-Pole PFC with a Simple Control Structure Based on the Phase Angle

Boost PFC Constant Voltage Control with Constant Power Load

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