Haitham Abu-Rub

Gdansk University of Technology, Danzig, Pomeranian Voivodeship, Poland

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Publications (171)215.07 Total impact

  • Yushan Liu · Baoming Ge · Haitham Abu-Rub · Dongsen Sun
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    ABSTRACT: The second harmonic $(2omega)$ power ripple of single-phase quasi-Z-source (qZS) photovoltaic (PV) inverter highly affects the whole system's design and performance. The topology's $2omega$ ripple model is very important to analyze qZS PV inverter's $2omega$ voltage and current ripple. The existing models did not consider the PV-panel dynamic and terminal capacitors, which causes the theoretical results apart from the truth. In this paper, a comprehensive modeling for single-phase qZS-PV inverter is proposed, where the $2omega$ ripple model of the qZS-PV inverter system with a real PV source is established and discussed without and with a PV terminal capacitor. The influences from qZS inductance and capacitance, and PV-panel terminal capacitance to the $2omega$ voltage and current ripple are investigated using the built model. The system parameter design method is proposed to mitigate this ripple. Simulation and experimental results validate the proposed $2omega$ ripple model and parameter design method.
    IEEE Transactions on Industrial Electronics 07/2015; 62(7):4194-4202. DOI:10.1109/TIE.2014.2384472 · 6.50 Impact Factor
  • IET Power Electronics 06/2015; 8(6). DOI:10.1049/iet-pel.2014.0327 · 1.32 Impact Factor
  • Shuo Liu · Baoming Ge · Xinjian Jiang · Haitham Abu-Rub · Fang Zheng Peng
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    ABSTRACT: Conventional matrix converters (MCs) have limited voltage gain that is less than 0.866, whether for direct MC (DMC) or indirect MC (IMC). Existing Z-source (ZS)/discontinuous quasi-Z-source (qZS) DMCs and ZS IMCs achieved larger than 0.866 voltage gain; however, the former inherited the complex commutation from DMC, and the latter involved a ZS network in dc link and led to non-all-silicon solution. In this paper, ZS and discontinuous qZS networks of existing ZS/qZS DMCs are used for an IMC topology for simplifying commutation and having high voltage gain, but they require extra input filter to reduce current harmonics. A new continuous qZS IMC is proposed, where a qZS network integrates the filtering function of the grid side; hence, additional input filter is avoided in the proposed continuous qZS IMC. Three new IMCs are compared in detail, in terms of voltage gain, current ripple, voltage ripple, inductor current and capacitor voltage stresses, ZS/qZS switch current and voltage stresses, filtering function, input current total harmonic distortion (THD), output voltage THD, and efficiency. Their control and modulation methods are presented to achieve the desired performances. Experimental comparisons verify the theoretical analysis and that the proposed continuous qZS IMC is a promising topology.
    IEEE Transactions on Industrial Electronics 02/2015; 62(2):692-701. DOI:10.1109/TIE.2014.2349877 · 6.50 Impact Factor
  • Sk Moin Ahmed · Haitham Abu-Rub · Zainal Salam
    IEEE Transactions on Industrial Electronics 01/2015; DOI:10.1109/TIE.2015.2420038 · 6.50 Impact Factor
  • Source
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    ABSTRACT: For high-voltage (HV) applications, the designers mostly prefer the classical DC–DC boost converter. However, it lacks due to the limitation of the output voltage by the gain transfer ratio, decreased efficiency and its requirement of two sensors for feedback signals, which creates complex control scheme with increased overall cost. Furthermore, the output voltage and efficiency are reduced due to the self-parasitic behavior of power circuit components. To overcome these drawbacks, this manuscript provides, the theoretical development and hardware implementation of DC–DC step-up (boost) power converter circuit for obtaining extra output-voltage high-performance. The proposed circuit substantially improves the high output-voltage by voltage-lift technology with a closed loop proportional–integral controller. This complete numerical model of the converter circuit including closed loop P-I controller is developed in simulation (Matlab/Simulink) software and the hardware prototype model is implemented with digital signal processor (DSP) TMS320F2812. A detailed performance analysis was carried out under both line and load regulation conditions. Numerical simulation and its verification results provided in this paper, prove the good agreement of the circuit with theoretical background.
    12/2014; DOI:10.1016/j.jestch.2014.11.005
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    ABSTRACT: In this paper, we present a new approach based on discrete Fourier transform (DFT) analysis for controller tuning of the closed-loop system with unknown plant. The DFT analysis is used to process the closed-loop measurements collected online to derive the frequency response of an initial closed-loop system that does not provide a good performance. Based on the closed-loop frequency response data, we propose two methods for tuning PID controller parameters according to some desired closed-loop performance specifications. The proposed approach can be applied online because the closed-loop system does not need to be stopped for data collection. The tuning problem of rotor speed controllers of electric drives, is chosen as an example to experimentally validate our proposed method. Specifically, we are interested here in the control of an induction motor. The availability of high-performance computational and storage facilities greatly simplifies the collection of measured data used for controller tuning. The experimental results presented in this paper demonstrate the efficacy and usefulness of the proposed control design method in many industrial applications.
    12/2014; 2(4):1013-1023. DOI:10.1109/JESTPE.2014.2343276
  • Source
    Yushan Liu · Baoming Ge · Haitham Abu-Rub · F.Z. Peng
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    ABSTRACT: An effective control method, including system-level control and pulsewidth modulation for quasi-Z-source cascade multilevel inverter (qZS-CMI) based grid-tie photovoltaic (PV) power system is proposed. The system-level control achieves the grid-tie current injection, independent maximum power point tracking (MPPT) for separate PV panels, and dc-link voltage balance for all quasi-Z-source H-bridge inverter (qZS-HBI) modules. The complete design process is disclosed. A multilevel space vector modulation (SVM) for the single-phase qZS-CMI is proposed to fulfill the synthetization of the step-like voltage waveforms. Simulation and experiment based on a seven-level prototype are carried out to validate the proposed methods.
    IEEE Transactions on Industrial Informatics 12/2014; 10(1):399-407. DOI:10.1109/TII.2013.2280083 · 8.79 Impact Factor
  • Yushan Liu · Haitham Abu-Rub · Baoming Ge
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    ABSTRACT: The current and emerging investigations on Z-source/quasi-Z-source inverters (ZSIs/qZSIs) are presented. The ZSI/qZSI fulfills buck/boost capability in single-stage topology and overcomes the limits of traditional voltage source inverters (VSIs). Hence, high reliablity, high efficiency, and low cost can be achieved. The recently derived impedance networks with improved voltage gain are discussed. The classic and newly proposed modulations and feedback controls for ZSIs/qZSIs are compared. Finally, the emerging applications and trends of ZSIs/qZSIs to photovoltaic (PV) power generation are discussed. This study offers a comprehensive and systematic reference for the future development of the high-performance ZSI/qZSI.
    IEEE Industrial Electronics Magazine 12/2014; 8(4):32-44. DOI:10.1109/MIE.2014.2307898 · 5.06 Impact Factor
  • Omar Abdel-Rahim · Omar Ellabban · Haitham Abu-Rub
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    ABSTRACT: Direct matrix Converter is considered as a powerful tool for AC/AC power conversion providing AC output voltage and frequency control. It also has many features such as a bidirectional power flow, a compact size and a direct conversion capability. In this paper, matrix converter is used to convert a five phase input voltage into three phase output voltage with controlling output current amplitude and frequency. Five-to-three phase matrix converter is used to control a three phase induction motor. Using a five-to-three phase matrix converter enables using multiphase generation units and at the same times there is no need to change existing three phase loads. Predictive Torque Control (PTC) algorithm is used to control the induction motor fed by a matrix converter. The performance of the proposed speed control system is verified by a MATLAB simulation of a 4 kW induction motor fed by a five-to-three phase matrix. The simulation results during different operation modes verify the validity of the proposed closed loop speed control method.
    The 40th Annual Conference of the IEEE Industrial Electronics Society, IECON'2014, Dallas, TX - USA; 11/2014
  • Marco Rivera · Haitham Abu-Rub · Z. SALAM · M. RIVERA · Sk Moin Ahmed
    40th annual conference of IEEE industrial electronics society-IECON, DALLAS, TEXAS; 11/2014
  • Source
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    ABSTRACT: The quasi- $Z$ source (qZS) cascaded multilevel inverter (CMI) (qZS-CMI) presents attractive advantages in application to photovoltaic (PV) power system. Each PV panel connects to an H-bridge qZS inverter (qZSI) to form a power generation module. The distributed maximum power point tracking and all modules' dc-link peak voltage balance can be achieved. However, it is the same with the conventional CMI that the second-harmonic ( $2omega$) voltage and current ripples exist in each qZSI module. It is crucial for a qZS-CMI to design the reasonable qZS network parameters to limit the ripples within a desired range. This paper proposes an analytic model to accurately calculate the $2omega$ voltage and current ripples of each qZSI module. A qZS impedance design method based on the built model is proposed to limit the $2omega$ ripples of dc-link voltage and inductor current. Simulated and experimental results through using the designed 1.5-kW prototype validate the proposed analytic model and the design method. Furthermore, this paper analyzes all of the operating states for a qZSI module and calculates the power loss. The measured efficiency from the prototype verifies the theoretical calculation, and the qZS-CMI-based grid-tie PV power system is tested in practical.
    IEEE Transactions on Industrial Electronics 11/2014; 61(11):6108-6117. DOI:10.1109/TIE.2014.2304913 · 6.50 Impact Factor
  • Source
    Baoming Ge · Yushan Liu · Haitham Abu-Rub
    IET Renewable Power Generation 11/2014; 8(8):925-936. DOI:10.1049/iet-rpg.2013.0221 · 2.28 Impact Factor
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    Mohammad B. Shadmand · Robert S. Balog · Haitham Abu-Rub
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    ABSTRACT: In a DC distribution system, where multiple sources supply a common bus, current sharing is an important issue. When renewable energy sources are used, such as photovoltaic (PV), DC/DC converters are needed to decouple the input voltage, which can be due to operating conditions such as Maximum Power Point Tracking (MPPT), from the DC bus voltage. Since different sources may have different power delivery capacities that may vary with time, coordination of the interface to the bus is of paramount importance to ensure reliable system operation. Further, since these sources are most likely distributed throughout the system, distributed controls are needed to ensure a robust and fault tolerant control system. This paper presents a Model Predictive Control-Maximum Power Point Tracking (MPC-MPPT) and a MPC-DROOP current regulator to interface PV in smart DC distribution systems. Back-to-back DC/DC converters control both the input current from the PV module and the droop characteristic of the output current injected into the distribution. The predictive controller speeds up both of the control loops since it predicts and corrects for error before the switching signal is applied to the respective converter.
    Energy Conversion, IEEE Transaction on 09/2014; 29(4). DOI:10.1109/TEC.2014.2362934 · 3.35 Impact Factor
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    Omar Ellabban · Haitham Abu-Rub · Frede Blaabjerg
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    ABSTRACT: Electric energy security is essential, yet the high cost and limited sources of fossil fuels, in addition to the need to reduce greenhouse gasses emission, have made renewable resources attractive in world energy based economies. The potential for renewable energy resources is enormous because they can, in principle, exponentially exceed the world's energy demand; therefore, these types of resources will have a significant share in the future global energy portfolio, much of which is now concentrating on advancing their pool of renewable energy resources. Accordingly, this paper presents how renewable energy resources are currently being used, scientific developments to improve their use, their future prospects, and their deployment. Additionally, the paper represents the impact of power electronics and smart grid technologies that can enable the proportionate share of renewable energy resources.
    Renewable and Sustainable Energy Reviews 08/2014; 39:748-764. DOI:10.1016/j.rser.2014.07.113 · 5.51 Impact Factor
  • Source
    Yushan Liu · Baoming Ge · Haitham Abu-Rub · Fang Zheng Peng
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    ABSTRACT: The quasi-Z-source inverter (qZSI) with battery can balance the stochastic fluctuations of PV power injected to the grid/load, but there is no literature to disclose its modelling and controller design in detail. This study proposed a dynamic small-signal model of qZSI with battery and a control strategy for photovoltaic (PV) power generation system. The built model discloses the dynamic relationship of PV panel voltage, battery current, quasi-Z-source inductor currents and capacitor voltages. The proposed control method achieves the grid-tie operation with unity power factor, PV panel??s maximum power point tracking and battery management. The novel space vector modulation for the qZSI divides the total shoot-through time interval into six equal parts per control cycle to be combined into the six switching moments, and lower inductor current ripple and higher inverter efficiency are performed. The experimental and simulation results verify the theoretical analysis and proposed control methods.
    IET Power Electronics 07/2014; 7(7):1665-1674. DOI:10.1049/iet-pel.2013.0389 · 1.32 Impact Factor
  • Sk Moin Ahmed · Abu-Rub H. · Kouzou A · Zainal S
    SAAEI 2014, The Annual Seminar on Automation, Industrial Electronics and Instrumentation, Tangiers, Morocco; 06/2014
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    ABSTRACT: The paper presents closed-loop ac drive with 5-phase induction motor operating with voltage source inverter and sine-wave filter. The motor supply voltages and currents have sinusoidal shape. For well known adjustable electric drives the field oriented control method with flux and speed control can be applied. In the presence of output filter both control and estimation algorithms should be modified due to sine-wave filter installation. The major advantage of the drive with speed observer is an operation without motor speed sensor based on inverter currents and voltage embedded sensors. In this paper sensorless operation of a five-phase induction motor drive with inverter output filter is accomplished. The validation of the drive operation was proved by simulation and experiments. The test bench was developed with prototype of 5-phase 4.3 kW induction motor and inverter with DSP control and sine-wave filter is designed and built.
    2014 IEEE 23rd International Symposium on Industrial Electronics (ISIE); 06/2014
  • Sk Moin Ahmed · Haitham Abu-Rub · Zainal Salam · Atif Iqbal
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    ABSTRACT: This paper presents a novel seven-phase open-end winding drive system supplied by the dual non-square matrix converter. The input to each of the matrix converter is three phase utility grid system and the output is seven phase voltages with variable voltage and frequency. The two matrix converters feeding the seven-phase open-end load are supplied from a common single three-phase utility source of 50 Hz. Simple carrier-based PWM algorithm is developed to control the seven-phase open-end load. A simple R-L load is considered in the paper. The paper presents the analytical approach to obtain the expression of modulating signals that are used to generate the switching pulses for the matrix converter. Simulation results are presented to support the idea of the proposed modulation scheme.
    2014 IEEE 23rd International Symposium on Industrial Electronics (ISIE); 06/2014
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    ABSTRACT: Multi-phase matrix converters (more than three phase) are distinctively advantageous as because of reduced per-phase current and unity power factor operation. The electrical motors supplied through these converters do have the common-mode voltage problem. In this paper, an approach to reduce the common-mode voltage is presented through appropriate vectors selection. An availability of the (35) 243 states gives selection freedom within the constraints. The useful ninety three vectors with ninety active and three zero vectors are implemented in conventional space vector modulation technique in matrix converter. The space vector control technique is used with selective large and medium vectors with their disposition in d-q plane having controlled mapping in x-y harmonics plane to reduce the common-mode voltage is discussed. Two operating modes, one within the linear range and another with non-linear range (ten stepping mode) is presented with their performance. The common mode voltage (CMV) voltage reduction with rms voltage gain is observed in ten step operation. The effectiveness of these control algorithms are presented through simulation and verified by implementing it on 2 kVA matrix converter.
    2014 IEEE 23rd International Symposium on Industrial Electronics (ISIE); 06/2014
  • Atif Iqbal · Rashid Alammari · Mostafa Mosa · Haitham Abu-Rub
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    ABSTRACT: Multiphase drives are now becoming serious competitor to traditional three-phase drives due to reasons of better fault tolerant property and reduced per-phase converter rating that are especially suited to high power drives application. One of the major factor of widespread research on multiphase drive are the availability of high computational power of control platforms such as DSP and FPGAs. With availability of such computationally powerful tool of DSP/FPGA leads to the adoption of model predictive control (MPC) in electric drive. This paper present current control of a five-phase inverter using MPC with the aim of achieving constant common mode voltage. By achieving constant common mode voltage (CMV), bearing current can be greatly reduced. This is achieved by proper selection of space vectors and analysis of drop in voltage gain is presented. Simulation results are supported by experimental approach.
    2014 IEEE 23rd International Symposium on Industrial Electronics (ISIE); 06/2014

Publication Stats

1k Citations
215.07 Total Impact Points


  • 2009–2014
    • Gdansk University of Technology
      • Faculty of Electrical and Control Engineering
      Danzig, Pomeranian Voivodeship, Poland
  • 2007–2014
    • Texas A&M University at Qatar
      Ad Dawḩah, Baladīyat ad Dawḩah, Qatar
  • 2001–2014
    • Texas A&M University
      • Department of Electrical and Computer Engineering
      College Station, Texas, United States
  • 2013
    • Qatar University
      • Department of Electrical Engineering
      Ad Dawḩah, Baladīyat ad Dawḩah, Qatar
    • University of Nottingham
      • Department of Electrical and Electronic Engineering
      Nottigham, England, United Kingdom
    • Aswan University
      • Department of Electrical Engineering
      Assuan, Aswān, Egypt
  • 2010
    • Beijing Jiaotong University
      • School of Electrical Engineering
      Beijing, Beijing Shi, China
    • Universidad Técnica Federico Santa María
      • Department of Electronics
      Valparaíso, Region de Valparaiso, Chile
    • Aligarh Muslim University
      • Department of Electronics Engineering
      Koil, Uttar Pradesh, India
  • 2006
    • Bergische Universität Wuppertal
      Wuppertal, North Rhine-Westphalia, Germany
  • 2003–2005
    • Birzeit University
      • Department of Electrical Engineering
      Bīre, West Bank, Palestinian Territory