A M Mahfuz Ur Rahman

A M Mahfuz Ur Rahman

University of Wollongong

H-index: 11

Oceania-Australia

About A M Mahfuz Ur Rahman

A M Mahfuz Ur Rahman, With an exceptional h-index of 11 and a recent h-index of 10 (since 2020), a distinguished researcher at University of Wollongong, specializes in the field of Energy Conversion, Renewable energy grid integration.

His recent articles reflect a diverse array of research interests and contributions to the field:

An Advanced Modulation Technique for Transformerless Grid Connected Inverter Circuits Used in Solar Photovoltaic Systems

A new hybrid multilevel inverter topology with level shifted multicarrier PWM technique for harvesting renewable energy

New Topologies and Advanced Control of Power Electronic Converters for Renewable Energy based Microgrids

An effective energy management with advanced converter and control for a PV-battery storage based microgrid to improve energy resiliency

Magnetic Linked Power Converter for Transformer-Less Direct Grid Integration of Renewable Generation Systems

A magnetic-linked multilevel active neutral point clamped converter with an advanced switching technique for grid integration of solar photovoltaic systems

An energy management strategy with advanced power electronic converter and control to achieve energy resiliency and minimum operating cost

Rooftop Photovoltaic System with Battery Storage to Supply Power in a Sewage Water Pumping Station based Industrial Microgrid with Zero Grid Power

A M Mahfuz Ur Rahman Information

University

University of Wollongong

Position

PhD Student Australia.

Citations(all)

509

Citations(since 2020)

461

Cited By

213

hIndex(all)

11

hIndex(since 2020)

10

i10Index(all)

12

i10Index(since 2020)

11

Email

University Profile Page

University of Wollongong

A M Mahfuz Ur Rahman Skills & Research Interests

Energy Conversion

Renewable energy grid integration

Top articles of A M Mahfuz Ur Rahman

An Advanced Modulation Technique for Transformerless Grid Connected Inverter Circuits Used in Solar Photovoltaic Systems

Authors

AM Mahfuz-Ur-Rahman,Md Rabiul Islam,Kashem M Muttaqi,M Ashib Rahman,Danny Sutanto

Journal

IEEE Transactions on Industrial Electronics

Published Date

2022/6/1

This article presents a new current peak point tracking third harmonic injected bus clamping pulsewidth modulation (CPPTTHBCPWM) technique for effective active and reactive power control in a transformerless H5 solar photovoltaic inverter. The proposed technique reduces the switching loss compared to that of the traditional switching technique by using a new reference signal and eliminating unwanted gate pulses. The proposed CPPTTHBCPWM technique ensures better utilization of the dc bus voltage, lowers the total harmonic distortion, and lowers the converter loss compared to the conventional modulation techniques. The proposed modulation technique also reduces the thermal stress in the switching devices and increases the power converter lifetime. The proposed modulation technique is simulated in MATLAB/Simulink environment and validated in the laboratory using a reduced-scale prototype test …

A new hybrid multilevel inverter topology with level shifted multicarrier PWM technique for harvesting renewable energy

Authors

Md Halim Mondol,Shuvra Prokash Biswas,Md Ashib Rahman,Md Rabiul Islam,AM Mahfuz-Ur-Rahman,Kashem M Muttaqi

Journal

IEEE Transactions on Industry Applications

Published Date

2022/1/27

This article presents a new hybrid three-phase cascaded modular multilevel inverter developed with a reduced switch count concept for harvesting renewable energy. The basic module of the proposed inverter consists of six switches, three asymmetric dc links, and two blocking diodes. The inverter can generate six positive voltage states, which are negatively polarized by the end-side H-bridge unit. As a result, a higher number of voltage levels are obtained with a minimum number of switches that ensure reduced total harmonic distortion in the grid current. Additionally, the proposed inverter can operate at a comparatively lower switching frequency, which decreases the switching losses. Most of the switches in each individual module conduct for a small period resulting in low conduction losses. The reduced switch count with the low switching and conduction losses increases the compactness and the efficiency of …

New Topologies and Advanced Control of Power Electronic Converters for Renewable Energy based Microgrids

Authors

AM Mahfuz Ur Rahman

Published Date

2021

Solar energy-based microgrids are increasingly promising due to their many features, such as being environmentally friendly and having low operating costs. Power electronic converters, filters, and transformers are the key components to integrate the solar photovoltaic (PV) systems with the microgrids. The power electronic converters play an important role to reduce the size of the filter circuit and eliminate the use of the bulky and heavy traditional power frequency step-up transformer. These power converters also play a vital role to integrate the energy storage systems such as batteries and the superconducting magnetic energy storage (SMES) unit in a solar PV power-based microgrid. However, the performance of these power converters depends upon the switching technique and the power converter configuration. The switching techniques can improve the power quality, ie lower total harmonic distortion at the converter output waveform, reduce the converter power loss, and can effectively utilize the dc bus voltage, which helps to improve the power conversion efficiency of the power electronic converter. The power converter configuration can reduce the size of the power converter and make the power conversion system more efficient. In addition to the advanced switching technique, a supervisory control can also be integrated with these power converters to ensure the optimal power flow within the microgrid.

An effective energy management with advanced converter and control for a PV-battery storage based microgrid to improve energy resiliency

Authors

AM Mahfuz-Ur-Rahman,Md Rabiul Islam,Kashem M Muttaqi,Danny Sutanto

Journal

IEEE Transactions on Industry Applications

Published Date

2021/9/27

This article presents an energy management strategy for a microgrid having solar PV arrays and a battery energy storage system (BESS). Most of the energy management strategy used for commercial photovoltaic (PV) inverters and battery inverters do not consider the future load behavior and cannot ensure the energy resiliency for a PV and battery storage based microgrid. This article proposes the use of a model predictive control strategy that considers future load behavior and energy cost profile to determine an optimum power flow trajectory to achieve energy resiliency, minimize the operating cost and maximize the profit of the microgrid. The proposed control strategy of the energy management system (EMS) is validated using both simulations in MATLAB/Simulink environment and by carrying out laboratory experiments on a developed laboratory test platform. For the converters of the test platform, this article …

Magnetic Linked Power Converter for Transformer-Less Direct Grid Integration of Renewable Generation Systems

Authors

AM Mahfuz-Ur-Rahman,Md Rabiul Islam,Kashem M Muttaqi,Danny Sutanto

Published Date

2021/5/30

Renewable energy-based power plants are increasingly used to fulfill the rapidly increasing electrical load demand because renewable energy plants are clean, eco-friendly, and environmentally sustainable. They also require less time for plant installation compared to traditional fossil fuel-based power plants. Power converters play an important role in the grid integration of renewable energy sources. The traditional low-voltage power converter utilizes a power frequency transformer and a line filter to integrate the renewable energy sources with the power grid, but they are heavy and bulky. Recently, medium-voltage power converters that do not require power frequency transformers and line filters are becoming increasingly popular. This chapter aims to review different power converter topologies with different switching and control strategies for the grid integration of renewable energy sources. The chapter also …

A magnetic-linked multilevel active neutral point clamped converter with an advanced switching technique for grid integration of solar photovoltaic systems

Authors

AM Mahfuz-Ur-Rahman,Md Rabiul Islam,Kashem M Muttaqi,Danny Sutanto

Journal

IEEE Transactions on Industry Applications

Published Date

2020/1/13

Nowadays, the grid-connected solar photovoltaic (PV) system has been drawing significant attention due to the rapid development and the decreasing cost of solar panels. The efficiency and reliability of a grid-connected PV system mainly depend on the power conversion system and the control strategy. This article presents a new magnetic-linked 7-level active neutral point clamped (ANPC) converter, which requires less number of flying capacitors and also reduces the control complexity of the grid-connected PV system. The proposed converter topology utilizes the input dc bus voltage better than the traditional ANPC multilevel converter and also provides galvanic isolation to the grid-connected PV systems. The lack of galvanic isolation is one of the biggest problems faced by the power frequency transformerless grid-connected PV systems. The proposed magnetic-linked power converter is also validated through …

An energy management strategy with advanced power electronic converter and control to achieve energy resiliency and minimum operating cost

Authors

AM Mahfuz-Ur-Rahman,Md Rabiul Islam,Kashem M Muttaqi,Danny Sutanto

Published Date

2020/10/10

Power converters play an important role in harvesting energy from renewable sources. This paper presents an advanced control strategy for the power electronic converters and an energy management strategy in a microgrid having solar photovoltaic (PV) and a battery energy storage systems (BESS). The proposed advanced control of the power electronic converter ensures reduced power losses during the energy conversion process and the proposed energy management strategy ensures both the minimization of the operating cost of the system and the increased resiliency of the whole system. This paper proposes the use of a model predictive control strategy for the microgrid comprising the solar PV arrays integrated with BESSs. a magnetically linked multilevel converter (acting as the solar inverter), a full bridge inverter with advanced pulse width modulation technique (acting as the battery inverter) and an …

Rooftop Photovoltaic System with Battery Storage to Supply Power in a Sewage Water Pumping Station based Industrial Microgrid with Zero Grid Power

Authors

AM Mahfuz-Ur-Rahman,Ashif Buksh,Md Rabiul Islam,Kashem M Muttaqi,Danny Sutanto

Published Date

2020/10/10

Achieving zero grid power in systems that utilize solar photovoltaic (PV) energy is a challenging task. This is because of the varying power output of solar PV due to the changing weather conditions and the controls required for a three-phase system. A system that operates induction motor loads, such as in the water pumping plant, increases this difficulty due to their high starting currents and power requirements, which can cause large voltage dips in a grid-connected system, and can have an even larger impact on isolated ones. A battery energy storage system (BESS), consisting of a large lithium-ion battery, a bi-directional dc-dc converter and a bi-directional dc-ac converter is considered in this paper to normalize the output power. A model is developed to accurately simulate the motor loads and the control strategies to operate the system to consume zero grid power at all times. These strategies are designed to …

Model predictive control for a new magnetic linked multilevel inverter to integrate solar photovoltaic systems with the power grids

Authors

AM Mahfuz-Ur-Rahman,Md Rabiul Islam,Kashem M Muttaqi,Danny Sutanto

Journal

IEEE Transactions on Industry Applications

Published Date

2020/9/16

The multilevel inverters are becoming increasingly popular for use in the grid integration of wind and photovoltaic (PV) power plants due to their higher voltage handling capability and the better output power quality. There are several types of multilevel inverters that have been proposed in the literature; among them, the active neutral point clamp (ANPC) multilevel inverters have been drawing significant attention especially for solving the problems with other multilevel inverters. However, with the increase in the number of levels, the ANPC requires more electronic switches and flying capacitors, by which the complexity and the cost increase. In this article, an ANPC inverter with a reduced number of switches and flying capacitors is presented for the grid integration of the solar PV systems controlled using the model predictive control technique. This model predictive control technique uses a discrete-time model of the …

A new modulation technique to improve the power loss division performance of the multilevel inverters

Authors

Md Razon Chowdhury,Md Ashib Rahman,Md Rabiul Islam,AM Mahfuz-Ur-Rahman

Journal

IEEE Transactions on Industrial Electronics

Published Date

2020/6/23

Multilevel inverters (MLIs) have offered significant contributions toward the implementation of energy conversion units used in industry and renewable energy applications. However, the switching devices in MLIs are associated with power loss division problems. The pulsewidth modulation (PWM) techniques greatly influence the peak, average, and ripple values of the device junction temperature. Thermal tension in the devices may be raised due to increased power loss caused by additional switching or uneven distribution of losses due to unbalanced gate pulses. Higher thermal stress accelerates the life degradation process of the power devices, and, eventually, leads to permanent damage of the MLI. Therefore, a new loss balancing two-pole clamped PWM technique for a single-phase MLI is proposed in this article. In the proposed PWM technique, in each half line cycle, symmetrical and equal duration of …

See List of Professors in A M Mahfuz Ur Rahman University(University of Wollongong)

A M Mahfuz Ur Rahman FAQs

What is A M Mahfuz Ur Rahman's h-index at University of Wollongong?

The h-index of A M Mahfuz Ur Rahman has been 10 since 2020 and 11 in total.

What are A M Mahfuz Ur Rahman's top articles?

The articles with the titles of

An Advanced Modulation Technique for Transformerless Grid Connected Inverter Circuits Used in Solar Photovoltaic Systems

A new hybrid multilevel inverter topology with level shifted multicarrier PWM technique for harvesting renewable energy

New Topologies and Advanced Control of Power Electronic Converters for Renewable Energy based Microgrids

An effective energy management with advanced converter and control for a PV-battery storage based microgrid to improve energy resiliency

Magnetic Linked Power Converter for Transformer-Less Direct Grid Integration of Renewable Generation Systems

A magnetic-linked multilevel active neutral point clamped converter with an advanced switching technique for grid integration of solar photovoltaic systems

An energy management strategy with advanced power electronic converter and control to achieve energy resiliency and minimum operating cost

Rooftop Photovoltaic System with Battery Storage to Supply Power in a Sewage Water Pumping Station based Industrial Microgrid with Zero Grid Power

...

are the top articles of A M Mahfuz Ur Rahman at University of Wollongong.

What are A M Mahfuz Ur Rahman's research interests?

The research interests of A M Mahfuz Ur Rahman are: Energy Conversion, Renewable energy grid integration

What is A M Mahfuz Ur Rahman's total number of citations?

A M Mahfuz Ur Rahman has 509 citations in total.

What are the co-authors of A M Mahfuz Ur Rahman?

The co-authors of A M Mahfuz Ur Rahman are Md Rabiul Islam.

    Co-Authors

    H-index: 39
    Md Rabiul Islam

    Md Rabiul Islam

    University of Wollongong

    academic-engine

    Useful Links