Analysis, modeling, design and implementation of average current mode control for interleaved boost converter
22 Apr 2013-pp 280-285
TL;DR: Small signal modeling approach is used to develop an analytical model for average current-mode controlled interleaved boost converter and the experimental results are presented to evaluate the derived model and performance of designed controller.
Abstract: In high power applications, parallel operation of boost converters is recommended. These paralleled boost converters can be operated in interleaved mode. Interleaved mode of operation improves the steady state and dynamic performance of the system. In this work, small signal modeling approach is used to develop an analytical model for average current-mode controlled interleaved boost converter. The controller is designed and implemented for a 500 W interleaved boost converter prototype. The experimental results are presented to evaluate the derived model and performance of designed controller.
Citations
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13 Oct 2021
TL;DR: In this article, an interleaved boost power factor correction (PFC) converter was designed for V/f open-loop control of 5HP, 415V 3-phase induction motor drive.
Abstract: This paper presents the analysis of an interleaved boost power factor correction (PFC) converter supplying a voltage source inverter (VSI) fed induction motor drive. The PFC converter is a single-stage interleaved boost converter that uses the average current waveshaping technique to make the non-sinusoidal input current drawn by the motor-drive to nearly sinusoidal waveform. The resultant input current is almost free from harmonics, which follows the IEEE Std 519-2014 current distortion limits for systems rated 120V through 69kV and, the system operates with nearly unity power factor (PF). The power stage and control stage of interleaved boost PFC is designed for V/f open-loop control of 5HP, 415V 3-phase induction motor drive. The PFC converter power stage design and control loop design is done for a 5kW output power rating. The whole system is simulated in the PSIM simulation software tool and results are discussed.
2 citations
01 Jan 2017
TL;DR: The most-adopted grid codes which required by system operators on large-scale grid connected Photovoltaic systems are reviewed, and the unique L(LCL)2 filter is designed, developed and introduced in this thesis.
Abstract: OF THE DISSERTATION ADVANCED SOLUTIONS FOR RENEWABLE ENERGY INTEGRATION INTO THE GRID ADDRESSING INTERMITTENCIES, HARMONICS AND INERTIAL RESPONSE by Arash Anzalchi Florida International University, 2017 Miami, Florida Professor Arif I. Sarwat, Major Professor Numerous countries are trying to reach almost 100% renewable penetration. Variable renewable energy (VRE), for instance wind and PV, will be the main provider of the future grid. The efforts to decrease the greenhouse gasses are promising on the current remarkable growth of grid connected photovoltaic (PV) capacity. This thesis provides an overview of the presented techniques, standards and grid interface of the PV systems in distribution and transmission level. This thesis reviews the most-adopted grid codes which required by system operators on large-scale grid connected Photovoltaic systems. The adopted topologies of the converters, the control methodologies for active reactive power, maximum power point tracking (MPPT), as well as their arrangement in solar farms are studied. The unique L(LCL)2 filter is designed, developed and introduced in this thesis. This study will help researchers and industry users to establish their research based on connection requirements and compare between different existing technologies. Another, major aspect of the work is the development of Virtual Inertia Emulator (VIE) in combination of hybrid energy storage system addressing major challenges with VRE implementations. Operation of a photovoltaic (PV) generating system under intermittent solar radiation is a challenging task. Furthermore, with high-penetration levels of photovoltaic en-
1 citations
Cites background from "Analysis, modeling, design and impl..."
...For operation in a stable mode, the BW of the converter is kept much smaller than the right half plane zero frequency of supercapacitor [270]....
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Proceedings Article•
01 Sep 2018TL;DR: Simulation results showing that the unbalanced power can be used in an interleaved buck configuration and still achieve zero output current ripple are presented.
Abstract: This paper proposes a new approach to divide the total power between different legs in an interleaved bidirectional buck converter, based on the Fibonacci sequence. The paper revises the theoretical analysis of the interleaved buck converter, showing the current ripple analysis; a small signal analysis to find the plants, which represent the circuit, to further derive the control strategy; the validation of these plants via simulation; and the control strategy of the circuit, detailing the unbalanced current division. Finally, simulation results showing that the unbalanced power can be used in an interleaved buck configuration and still achieve zero output current ripple are presented. Discussions among the project adaptations for the interleaved legs, with emphasis for the power semiconductors, are also present in this paper.
1 citations
Cites result from "Analysis, modeling, design and impl..."
...Similar approach is also shown in [10] for an interleaved boost topology, which is the converter presented herein operating when the battery provides energy to the system (battery discharges)....
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TL;DR: Improved the switching inductor three-terminal network, and proposed a switched inductor boost converter based on the topology combination which has high voltage gain and small power stress of the power switched tube.
Abstract: According to the voltage gain of boost converter at the photovoltaic inverter system, a high gain switched inductor boost converter is proposed in this paper by analyzing and studying the voltage gain ability of traditional switched inductor boost converter which improves the switched inductor three-terminal network topology. The working principle and working characteristics of the designed boost topology are analyses in detail, and the corresponding mathematical model is established. Compared with the traditional converter, the proposed converter has some advantages which improving the boost ability and decreasing the voltage stress of the switch tube. Moreover, the simulations are shown to verify the correctness of the theoretical analysis. INTRODUCTION Recently, the renewable energy resources are increasingly used to produce energy. Solar energy can be considered as the best renewable energy because of the earth surface receives an amount of solar energy which is more than the world energy demand. As a result, solar cells and solar power generation becomes the popular topics which addressed by many researches and projects 1,2 , and the high-gain DC-DC converter as a key composition in photovoltaic system has been extensively used and researched 3,4 . The traditional switched inductor boost converter 5 has the characteristics of small inductor in size, mutual symmetry and the large gain enhancement space compared to the boost converter. However, the input gain is limited, and the power switch voltage stress is equal to the output voltage which has high power switch conduction loss. Furthermore, the voltage stress produced by the output diode is equal to the output voltage which results more serious problem of the reverse recovery. In order to improve the above disadvantages of switched inductor boost converter, the literature 6 proposed to add the coupling inductor and clamp circuit to improve the voltage gain, but the leakage inductance affect the conversion efficiency, increase the voltage stress of power switch, and electro magnetic interference(EMI) problem are more serious. This paper improved the switching inductor three-terminal network, and proposed a switched inductor boost converter based on the topology combination which has high voltage gain and small power stress of the power switched tube. Finally, the paper analyses the working principle of the proposed boost converter, and verifies the correctness of the theoretical analysis by circuit simulation. Zhuo JING 1 , Song GAO 1, *, Chao-bo CHEN 1 and Shen-hao GAO 1 1 School of Electronic Information Engineering, Xi’an Technological University, 710021, Xi’an, China Corresponding author: gaos@xatu.edu.cn
1 citations
TL;DR: In this paper , a decoupling power balancing strategy with reduced current sensors for the two phase interleaved neutral point clamped DC/DC converter (NPCDC) applied in energy storage system (ESS).
Abstract: This paper proposes a decoupling power balancing strategy with reduced current sensors for the two phase interleaved neutral point clamped DC/DC converter (NPCDC) applied in energy storage system (ESS). With the analysis of the NPCDC operation principle, an equivalent two voltage level analysis method is derived. On this basis, the power balancing strategy based on the total current time-sharing sampling method is proposed. Compared with the traditional strategy, the proposed strategy only requires two current sensors, reducing the number of current sensors by half. Meanwhile, the power balancing control is decoupled with output voltage control and capacitor voltage balancing control, which is helpful to simply the controller design. The small signal model of the proposed strategy based on the equivalent two voltage level analysis method is studied, and the controller design method is also presented in the paper. At last, the effectiveness of the proposed strategy is verified through an energy storage experimental platform, and the experimental results are presented and discussed.
1 citations
References
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Book•
31 Jul 1997
TL;DR: Converters in Equilibrium, Steady-State Equivalent Circuit Modeling, Losses, and Efficiency, and Power and Harmonics in Nonsinusoidal Systems.
Abstract: Preface. 1. Introduction. I: Converters in Equilibrium. 2. Principles of Steady State Converter Analysis. 3. Steady-State Equivalent Circuit Modeling, Losses, and Efficiency. 4. Switch Realization. 5. The Discontinuous Conduction Mode. 6. Converter Circuits. II: Converter Dynamics and Control. 7. AC Equivalent Circuit Modeling. 8. Converter Transfer Functions. 9. Controller Design. 10. Input Filter Design. 11. AC and DC Equivalent Circuit Modeling of the Discontinuous Conduction Mode. 12. Current Programmed Control. III: Magnetics. 13. Basic Magnetics Theory. 14. Inductor Design. 15. Transformer Design. IV: Modern Rectifiers and Power System Harmonics. 16. Power and Harmonics in Nonsinusoidal Systems. 17. Line-Commutated Rectifiers. 18. Pulse-Width Modulated Rectifiers. V: Resonant Converters. 19. Resonant Conversion. 20. Soft Switching. Appendices: A. RMS Values of Commonly-Observed Converter Waveforms. B. Simulation of Converters. C. Middlebrook's Extra Element Theorem. D. Magnetics Design Tables. Index.
6,136 citations
01 Jan 1990
TL;DR: Average current mode control may be used effectively to control currents other than inductor current, allowing a much broader range of topological application.
Abstract: Current mode control as usually implemented in switching power supplies actually senses and controls peak inductor current. This gives rise to many serious problems, including poor noise immunity, a need for slope compensation, and peak-to-average current errors which the inherently low current loop gain cannot correct. Average current mode control eliminates these problems and may be used effectively to control currents other than inductor current, allowing a much broader range of topological application.
611 citations
"Analysis, modeling, design and impl..." refers background in this paper
...Steady state gain and noise immunity are high in ACC [8]....
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...ACC is free from instability problems unlike peak current mode control which requires slope compensation to make it stable at duty ratio D > 0.5....
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...The control structure for ACC of interleaved boost converter shown in Fig.1 consists of two current loop controllers (HiL1(s), HiL2(s)) and one voltage loop controller (Hv(s))....
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...Average current-mode control (ACC) is well established and it has advantages of achieving higher bandwidths when compared to voltage mode control [7]....
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TL;DR: In this paper, a small-signal model for the average current-mode control method is developed, which is suitable for applications where the average inductor current needs to be controlled, as in power factor correction circuits and battery charger dischargers.
Abstract: A recently proposed average current-mode control method is analyzed. A complete small-signal model for the control scheme is developed. The model is accurate up to half the switching frequency. This control scheme is suitable for applications where the average inductor current needs to be controlled, as in power factor correction circuits and battery charger dischargers. The subharmonic oscillation, commonly found in peak current-mode control, also exists in this method. This subharmonic oscillation can be eliminated by properly choosing the proper gain of the compensation network in the current loop. Model predictions are confirmed experimentally. >
347 citations
"Analysis, modeling, design and impl..." refers methods in this paper
...State space averaging method is used to obtain small signal model of the converter [9]-[11]....
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TL;DR: In this paper, a multidevice structure with interleaved control is proposed to reduce the input current ripples, the output voltage ripples and the size of passive components with high efficiency compared with the other topologies.
Abstract: Multiphase converter topologies for use in high-performance applications have received increasing interest in recent years. This paper proposes a novel multidevice interleaved boost converter (MDIBC) that interfaces the fuel cell with the powertrain of hybrid electric vehicles. In this research, a multidevice structure with interleaved control is proposed to reduce the input current ripples, the output voltage ripples, and the size of passive components with high efficiency compared with the other topologies. In addition, low EMI and low stress in the switches are expected. The proposed dc/dc converter is compared to other converter topologies such as conventional boost converter (BC), multidevice boost converter (MDBC), and two-phase interleaved boost converter (IBC) to verify its dynamic performance. Furthermore, a generalized small-signal model is derived for these dc/dc converters, which has not been previously discussed. A digital dual-loop control is designed to achieve the proper regulator for the converters with fast transient response. The dc/dc converter topologies and their controller are designed and investigated by using MATLAB/Simulink. Finally, the proposed converter (MDIBC) is experimentally validated with results obtained from a 30-kW prototype that has been built and tested in our laboratory based on TMS320F2808 DSP. The simulation and experimental results have demonstrated that the proposed converter is more efficient than other dc/dc converter topologies in achieving high performance and reliability for high-power dc/dc converters.
322 citations
"Analysis, modeling, design and impl..." refers background in this paper
...These paralleled converters can be operated in interleaved mode [3]&[4], where interleaving is process of operating boost converters in parallel, with a phase shift between their gate drive signals....
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14 Mar 1999
TL;DR: In this article, a straight-forward averaged modeling method is proposed, and the resulting models are shown to be accurate enough for practical design purpose for PWM converters with average current control.
Abstract: This paper addresses modeling and practical design issues for PWM converters with average current control. A straight-forward averaged modeling method is proposed, and the resulting models are shown to be accurate enough for practical design purpose. Limitations of previously published models that incorporate sampling effect are discussed. The proposed averaged model is then applied for stability analysis and control design. In particular, conditions under which switching instability may occur are identified, and design method that avoids the instability problem is presented. The proposed modeling and design methods are demonstrated and further validated by a prototype synchronous-switch buck converter with 5 V input and 2 V output.
135 citations