Design of robust digital controller for interleave PFC boost converter with DC-DC converter load
01 Dec 2012-pp 1-2
TL;DR: In this article, a robust digital controller for suppressing the change of step response characteristics and variation of output voltage at a DC-DC buck converter load sudden change with high power factor and low harmonic is proposed.
Abstract: In recent years, improving of power factor and reducing harmonic distortion in electrical instruments are needed In general, a current conduction mode boost converter is used for active PFC (Power Factor Correction) In a PFC boost converter, if a duty ratio, a load resistance and an input voltage are changed, the dynamic characteristics are varied greatly This is the prime reason of difficulty of controlling the PFC boost converter In this paper, a robust digital controller for suppressing the change of step response characteristics and variation of output voltage at a DC-DC buck converter load sudden change with high power factor and low harmonic is proposed Experimental studies using a micro-processor for controller demonstrate that this type of digital controller is effective to improve power factor and to suppress output voltage variation
Citations
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01 Dec 2016
TL;DR: It has been shown that the size and cost can be minimized, possible extension to multiple topologies is indicated and a simulation and hardware results of proposed topology of a two stage IBC are reported.
Abstract: In this paper a novel approach is that the switches in parallel used to develop a interleaved boost dc-dc converter and pulse width modulation integrated circuits (PWM ICs) are used in order to maintain phase difference between switching pluses are 180°. These dedicated ICs makes closed loop operation of interleaved boost converter(IBC). With the input voltage about 52V and the output voltage about 218V with it can drive the load about 500W, with an efficiency of about 90%. In place of battery it can be replaced by solar string and with four batteries of each 12V with high current rated can be used to drive high power load with continuous conduction mode(CCM) of operation. In the following simplified schematic is included along with proposed circuit, the input and output filters can be smaller due to ripple current cancellation. Authors of this contribution report a simulation and hardware results of proposed topology of a two stage IBC with it has been shown that the size and cost can be minimized, possible extension to multiple topologies is indicated.
2 citations
Cites background from "Design of robust digital controller..."
...Likewise, power pulses drawn from the input capacitor are staggered, reducing current ripple requirements, increased overall boost, Greater operating voltage range, Smoother input and output currents due to interleaving, longer life of source/supply due to interleaving[9]-[12]....
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...[12] Yuji Fukaishi, KohjiHigachi ,HiroyokiFuruya, YakiSatake, “Design of Robust Digital controller for Interleave PFC Boost Converter with DC-DC converter load” 978-1-4673-56961/12/2012 IEEE....
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01 May 2017
TL;DR: A dual-model switch passivity-based control is proposed to optimize the PFC based on the DCVM model and the CCVM model to achieve better PFC performance.
Abstract: Buck converter with LC input filter has the inherent PFC properties when operating in discontinuous capacitor voltage mode (DCVM). Due to the continuous capacitor voltage mode (CCVM) cannot be fully eliminated in power cycle, a good PFC effect also cannot be guaranteed which is the key for the application of Buck PFC. In this paper, the DCVM model for Buck PFC converter with LC filter has been constructed. Then, a dual-model switch passivity-based control is proposed to optimize the PFC based on the DCVM model and the CCVM model. Simulation results show the validity of DCVM model and a better PFC performance that has been achieved by proposed control method.
1 citations
07 Nov 2017
TL;DR: In this article, a two-stage interleaved boost converter (IBC) is proposed to achieve high voltage gain and less voltage and current stress on the switches in a stand-alone PV system.
Abstract: A novel two stage interleaved boost converter (IBC) is investigated. In the proposed topology the advantages of IBC like current sharing, high voltage gain and less voltage and current stress on the switches are more effective. The stand-alone PV system is installed at a convenient place. The output of battery is given to proposed converter. The prototype hardware is developed without isolation transformer to drive the load about 600W with the use of pulse width modulated integrated circuits (PWM ICs) and the efficiency about 93%.
1 citations
Cites background from "Design of robust digital controller..."
...Other IBCs are developed with the use of current source driver (CSD) and Digital Signal Processor (DSP) (e Silva et al., 2015; Fukaishi et al., 2012; Zhange et al., 2015)....
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01 Dec 2016
TL;DR: In this paper, a two-stage interleaved boost converter (IBC) with PWM integrated circuits (PWM ICs) is proposed to maintain phase difference between switching pluses are 180°.
Abstract: A novel approach is that the switches in parallel used to develop a interleaved boost converter with pulse width modulation integrated circuits (PWM ICs) are used in order to maintain phase difference between switching pluses are 180°. These dedicated ICs makes closed loop operation of interleaved boost converter(IBC). The converter input voltage about 52V and the output voltage about 218V with it can drive the load about 500W, with an efficiency of about 90%. In place of battery it can be replaced by solar string and with four batteries of each 12V with high current rated can be used to drive high power load with continuous conduction mode (CCM) of operation. In the following simplified schematic is included along with proposed circuit, because of ripple current cancellation the input and output filters size is reduced. Authors of this contribution report a simulation and hardware results of proposed topology of a two stage IBC with it has been shown that the size and cost can be minimized, possible extension to multiple topologies is indicated.
Cites background from "Design of robust digital controller..."
...[11] Yuji Fukaishi, KohjiHigachi ,HiroyokiFuruya, YakiSatake, “Design of Robust Digital controller for Interleave PFC Boost Converter with DC-DC converter load” 978-1-4673-56961/12/2012 IEEE....
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09 Nov 2017
TL;DR: It is proved that proposed interleaved boost converter (IBC) with snubber circuit gives near to the designed values of output voltage, current and power.
Abstract: In this paper novel interleaved boost converter (IBC) with snubber circuit is presented. It is compared with conventional boost and IBC. In the proposed topology current stress on each switch is one fourth of input current. Simulation comparison is done for 1hp universal motor and it is proved that proposed converter gives near to the designed values of output voltage, current and power. Ripples in boost, IBC and proposed IBC system are compared. Ripples of the parameter voltage, current and power are reduced with snubber. Also proposed system with hard switching efficiency is about 92% and its efficiency is increased to 93.37% with soft switching.
References
More filters
TL;DR: In this paper, the authors proposed a new method for designing good approximate 2-degree-of-freedom (2DOF) digital controller which makes the control bandwidth wider, and at the same time makes a variation of the output voltage very small at sudden changes of resistive load.
25 citations
"Design of robust digital controller..." refers methods in this paper
...An approximate 2-degree-offreedom (A2DOF) method [1] is applied to the interleave PFC boost converter with a DC-DC buck converter load....
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14 Dec 2005
TL;DR: In this article, the authors proposed a method for determining the parameters of 2DOF digital controller which makes the control bandwidth wider, and at the same time makes a variation of the output voltage very small at sudden changes of resistive load and the input voltage.
Abstract: Robust DC-DC converter which can cover extensive load changes and also input voltage changes with one controller is needed. In this paper, we propose a method for determining the parameters of 2DOF digital controller which makes the control bandwidth wider, and at the same time makes a variation of the output voltage very small at sudden changes of resistive load and the input voltage. The 2DOF digital controller whose parameters are determined by the proposed method is actually implemented on a DSP and is connected to a DC-DC converter. Experimental studies demonstrate that this type of digital controller can satisfy given specifications
8 citations