Frede Blaabjerg

Frede Blaabjerg

Aalborg Universitet

H-index: 197

Europe-Denmark

About Frede Blaabjerg

Frede Blaabjerg, With an exceptional h-index of 197 and a recent h-index of 136 (since 2020), a distinguished researcher at Aalborg Universitet, specializes in the field of Power Electronics, Renewable Energy, Wind Turbines, Power Systems, Electrical Engineering.

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

Power electronics-based safety enhancement technologies for lithium-ion batteries: An overview from battery management perspective

Energy transition technology: The role of power electronics

Uncertainty compensation with coordinated control of EVs and DER systems in smart grids

Multi-energy management of interconnected multi-microgrid system using multi-agent deep reinforcement learning

Overview of US patents for energy management of renewable energy systems with hydrogen

Integrating black start capabilities into offshore wind farms by grid‐forming batteries

Dynamic modeling, stability analysis and control of interconnected microgrids: A review

Inertia estimation of renewable-energy-dominated power system

Frede Blaabjerg Information

University

Aalborg Universitet

Position

Professor in Power Electronics Villum Investigator Denmark

Citations(all)

196126

Citations(since 2020)

103142

Cited By

131647

hIndex(all)

197

hIndex(since 2020)

136

i10Index(all)

1937

i10Index(since 2020)

1532

Email

University Profile Page

Aalborg Universitet

Frede Blaabjerg Skills & Research Interests

Power Electronics

Renewable Energy

Wind Turbines

Power Systems

Electrical Engineering

Top articles of Frede Blaabjerg

Power electronics-based safety enhancement technologies for lithium-ion batteries: An overview from battery management perspective

Authors

Zhaoyang Zhao,Haitao Hu,Zhengyou He,Herbert Ho-Ching Iu,Pooya Davari,Frede Blaabjerg

Published Date

2023/4/6

Safety enhancement for lithium-ion batteries (LIBs) has received a lot of attention from academic and industrial fields. However, there is a lack of overview from the perspective of the application power electronics (PEs) in the systems. This article gives an overview of PE-based safety enhancement technologies for LIBs, mainly focusing on battery management. It introduces the latest advances in battery protection, balancing, monitoring, and lifetime improvement, all based on PE technologies. Detailed discussion and future research opportunities are given. This article aims to provide a reference for PE researchers who want to make some efforts in LIB safety.

Energy transition technology: The role of power electronics

Authors

Jose Rodriguez,Frede Blaabjerg,Marian P Kazmierkowski

Journal

Proceedings of the IEEE

Published Date

2023/4/5

The articles in this month’s issue provide insight into the most important powerelectronics- based technologies for energy transition.

Uncertainty compensation with coordinated control of EVs and DER systems in smart grids

Authors

Morteza Azimi Nasab,Mohammad Zand,Amir Ali Dashtaki,Mostafa Azimi Nasab,Sanjeevikumar Padmanaban,Frede Blaabjerg

Journal

Solar Energy

Published Date

2023/10/1

The exploitation of wind farms and solar cells have a special place due to their ability to produce more, more general acceptability, and more affordable. The only challenge facing the use of new energies is the uncertainty in their production due to the lack of sunlight and wind blowing continuously at different hours of the day and night. In this article, the problem of planning the flexibility of electric vehicle charging and discharging to coordinate with wind and solar production and to compensate for the uncertainty of these resources has been solved using the CPLEX solver. Also, in this article, the flexibility of charging and discharging of electric vehicles has been used to coordinate with wind and solar production and compensate for the uncertainty of these sources. In addition, the EVs (Electric Vehicles) are planned in such a way that the operating cost of the microgrid is minimized. To consider the uncertainty related …

Multi-energy management of interconnected multi-microgrid system using multi-agent deep reinforcement learning

Authors

Sichen Li,Di Cao,Weihao Hu,Qi Huang,Zhe Chen,Frede Blaabjerg

Journal

Journal of Modern Power Systems and Clean Energy

Published Date

2023/3/27

The multi-directional flow of energy in a multi-microgrid (MMG) system and different dispatching needs of multiple energy sources in time and location hinder the optimal operation coordination between microgrids. We propose an approach to centrally train all the agents to achieve coordinated control through an individual attention mechanism with a deep dense neural network for reinforcement learning. The attention mechanism and novel deep dense neural network allow each agent to attend to the specific information that is most relevant to its reward. When training is complete, the proposed approach can construct decisions to manage multiple energy sources within the MMG system in a fully decentralized manner. Using only local information, the proposed approach can coordinate multiple internal energy allocations within individual microgrids and external multilateral multi-energy interactions among …

Overview of US patents for energy management of renewable energy systems with hydrogen

Authors

Shiqi Zhang,Yupeng Wei,Xiaoqiang Guo,Zheng Li,Xiaofei Song,Frede Blaabjerg

Published Date

2023/3/26

The problems of energy shortage, severe pollution, and global warming are becoming increasingly severe. Renewable energy systems with hydrogen have been widely used. In recent years, much literature has described the energy management of renewable energy systems with hydrogen in a comprehensive way. However, most of them are proposed and discussed from an academic point of view. There are likewise several different approaches and ideas in the patents that address the energy management of hydrogen renewable energy systems. Moreover, most patents are oriented toward industrial applications and still need to be reviewed and analyzed. To fill this gap, this paper reviews relevant US patents to find potential and industrial hydrogen applications and energy management strategies in renewable energy systems. The work presented in this paper will provide solutions and guidance in solving …

Integrating black start capabilities into offshore wind farms by grid‐forming batteries

Authors

Daniela Pagnani,Łukasz Kocewiak,Jesper Hjerrild,Frede Blaabjerg,Claus Leth Bak

Journal

IET Renewable Power Generation

Published Date

2023/10

Power systems are currently experiencing a transition towards decarbonisation through the large‐scale deployment of renewable energy sources. These are gradually replacing conventional thermal power plants which today are the main providers of black start services. Consequently, in case of a total/partial blackout, conventional black‐start resources may not be ready for operation. Offshore wind farms (OWFs), with their large capacity and fast controllers, have potential as innovative black‐start units, thus, the need for a new design for OWFs. Here, challenges and possible solutions in integrating black start services into offshore wind farms will be presented. The first challenge is represented by the self‐start capability. The self‐start unit should be capable of forming the wind farm power island and withstanding transient phenomena due to the equipment energisation. The investigated solution comprises grid …

Dynamic modeling, stability analysis and control of interconnected microgrids: A review

Authors

Mobin Naderi,Yousef Khayat,Qobad Shafiee,Frede Blaabjerg,Hassan Bevrani

Published Date

2023/3/15

This paper reviews concepts of interconnected microgrids (IMGs) as well as compare and classify their modeling, stability analysis, and control methods. To develop benefits of isolated microgrids (MGs) such as reliability improvement and their renewable energy integration, they should be interconnected, share power, support the voltage/frequency of overloaded MGs, etc. Despite maximizing their benefits and decreasing weaknesses of isolated MGs, IMGs require maintaining stability in different operation modes and employing appropriate control methods. Moreover, a basic requirement for stability analysis and controller design is system modeling. Since many articles have addressed these topics on IMGs from different views, a comparison is necessary. Therefore, IMG dynamic modeling methods are classified and their main features and challenges are discussed. Then, stability analysis and control methods of …

Inertia estimation of renewable-energy-dominated power system

Authors

Pengfei Hu,Yujing Li,Yanxue Yu,Frede Blaabjerg

Published Date

2023/9/1

By integrating a significant amount of renewable energy sources such as wind power and photovoltaic, the power system is gradually evolving into a low-inertia power system. The reduction in the proportion of synchronous generators has resulted in a diminished ability to provide inertia support to the power system, consequently leading to increasingly severe challenges in maintaining frequency stability. To address this issue and enhance the inertia of the power system, several strategies for virtual inertia control have been developed. These strategies have the potential to reshape the output characteristics of power-electronics-interfaced renewable energy sources and battery storage systems. Following the wide usage of virtual inertia control, the inertia estimation has emerged as an urgent concern in practical applications for grid operators. Hence, a comprehensive and critical review of inertia estimation has …

Power electronics technology for large-scale renewable energy generation

Authors

Frede Blaabjerg,Yongheng Yang,Katherine A Kim,Jose Rodriguez

Journal

Proceedings of the IEEE

Published Date

2023/3/14

Grid integration of renewable energy (REN) requires efficient and reliable power conversion stages, particularly with an increasing demand for high controllability and flexibility seen from the grid side. Underpinned by advanced control and information technologies, power electronics converters play an essential role in large-scale REN generation. However, the use of power converters has also exposed several challenges in conventional power grids, e.g., reducing the system inertia. In this article, grid integration using power electronics is presented for large-scale REN generation. Technical issues and requirements are discussed with a special focus on grid-connected wind, solar photovoltaic, and energy storage systems. In addition, the core of the energy generation and conversion—control for individual power converters (e.g., general current control) and for the system level (e.g., coordinated operation of large …

An improved modulation method for modular multilevel converters based on particle swarm optimization

Authors

Xinxiao Qin,Weihao Hu,Yuanhong Tang,Qi Huang,Zhe Chen,Frede Blaabjerg

Journal

International Journal of Electrical Power & Energy Systems

Published Date

2023/9/1

Modular multilevel converter (MMC) is the first topology choice for flexible DC transmission systems. This paper presents a particle swarm optimization (PSO) algorithm aided modulation method to calculate the improved selective harmonic elimination pulse width modulation (iSHE-PWM) switching angles with the aim of reducing the total harmonic distortion (THD) and output voltage error of MMC. The SHE-PWM has more controllable variables compared with the staircase modulation so that it can be used to improve the output current waveform quality. This method retains the advantages of easy to control and low frequency from the staircase modulation. But amplitude of its high-order harmonic is high and this paper improves it. Firstly the mathematical model of MMC is set up and corresponding expressions of THD and voltage error are given. The joint function of THD and voltage error is considered as the fitness …

A comprehensive review of the recent development of wireless power transfer technologies for electric vehicle charging systems

Authors

Amritansh Sagar,Arun Kashyap,Morteza Azimi Nasab,Sanjeevikumar Padmanaban,Manuele Bertoluzzo,Abhay Kumar,Frede Blaabjerg

Published Date

2023/8/1

The expanding Electric vehicle (EV) market is fueled by the need for more efficient and dependable ways to recharge the battery. By eradicating the necessity for direct physical interaction between vehicles and charge equipment, the Wireless Power Transfer (WPT) methodology eliminates the drawbacks and risks associated with the conventional conductive system. The innovative WPT technique replaces the conductive charging system to keep a similar power rating and efficiency. Numerous strategies have been created to improve the effectiveness and dependability of the WPT model. As a result, this review article thoroughly analyses current major research literatures that describe WPT technologies for EV charging. The papers are classified based on various coupling types along with magnetic couplers and shielding, compensation, misalignment tolerance and control methods in WPT systems. In addition, the …

Stability oriented design of model predictive control for DC/DC boost converter

Authors

Yuan Li,Subham Sahoo,Tomislav Dragicevic,Yichao Zhang,Frede Blaabjerg

Journal

IEEE Transactions on Industrial Electronics

Published Date

2023/3/1

Model predictive control (MPC) based on long prediction horizons can address the inherent nonminimum phase (NMP) behavior issue of dc/dc boost converters. However, the response time of the controller will increase since the long prediction horizons result in a high computational burden. To solve this problem, an NMP behavior improving (NPI) MPC with a single prediction horizon is proposed in this article. First, the actual cause behind the NMP behavior is analyzed. Afterward, the difference equation is modified according to the analysis and then used in the NPI-MPC. In addition, a fixed switching frequency is generated based on the value of the duty cycle, which is realized in the NPI-MPC algorithm and a modulation. Moreover, a weighting factors design guideline based on the stability criterion of a Jacobian matrix is provided. It effectively reflects the impact and sensitivity of different weighting factors on …

Seventeen level switched capacitor inverters with the capability of high voltage gain and low inrush current

Authors

Vishal Anand,Varsha Singh,Xiaoqiang Guo,Mohammad Ali Jagabar Sathik,Yam Prasad Siwakoti,Saad Mekhilef,Frede Blaabjerg

Journal

IEEE Journal of Emerging and Selected Topics in Industrial Electronics

Published Date

2023/7/4

The topology of a 17-level (17L) hybrid switched-capacitor multilevel inverter (SCMLI) with high voltage gain is presented in this work. A single source, four capacitors, six half-bridge switches (five with antiparallel diodes and one half-bridge without antiparallel diodes), and five diodes is used in the proposed SCMLI. The total standing voltage (TSV), cost function (CF), and maximum blocking voltage (MBV) across the switches and capacitors are all reduced by this inverter. The MBV is half the output voltage, lowering component costs and reducing the overall size of the inverter to achieve high power density. In addition, a soft-charging approach has been implemented to reduce the current stress on the components. The proposed SCMLI advantages over current state-of-the-art 17-L inverters are fully examined in terms of TSV, CF, and MBV. To determine the viability of the proposed 17-L inverter, several …

Power coupling analysis and improved decoupling control for the VSC connected to a weak AC grid

Authors

Bingbing Shao,Qi Xiao,Lingfei Xiong,Liyuan Wang,Yongheng Yang,Zhe Chen,Frede Blaabjerg,Josep M Guerrero

Journal

International Journal of Electrical Power & Energy Systems

Published Date

2023/2/1

Conventional vector control (VC) is widely used in the voltage source converter (VSC) due to its simplicity and power decoupling ability. However, this paper reveals that the VC may result in strong active and reactive power coupling under weak AC grid conditions. The linearized relationship between the power and dq-axis currents is built. On this basis, the power coupling mechanism is revealed, and the power coupling process is presented. Finally, an improved decoupled power control is accordingly proposed based on the feedforward compensation method. The improved decoupling control method can realize more accurate decoupled active and reactive power regulation. Moreover, its design is simple, and thus is easy to be implemented in practice. The power coupling characteristics analysis and the improved power decoupling control are verified through PSCAD/EMTDC simulations and experiments.

Resilient cooperative secondary control of islanded AC microgrids utilizing inverter-based resources against state-dependent false data injection attacks

Authors

Mahmood Jamali,Mahdieh S Sadabadi,Masoud Davari,Subham Sahoo,Frede Blaabjerg

Journal

IEEE Transactions on Industrial Electronics

Published Date

2023/6/8

In this article, we investigate the impact of potential state-dependent false data injection cyber-attacks on frequency synchronization and active power management in islanded ac microgrids. One potential way of affecting microgrid reliability is by forcing a generation outage. Thus, the attacker could potentially aim to desynchronize inverter-based resources in microgrids by manipulating their frequency with malicious injections. The attack signals are injected to manipulate control input channels, sensor nodes, reference values, and the information exchanged through communication networks. In order to mitigate the adverse impacts of such cyber-attacks, first, the conventional distributed consensus-based secondary control approach is modified and complemented in the presence of cyber-attacks. Second, a resilient cooperative distributed secondary control scheme is proposed by utilizing the concept of a virtual …

Challenges and potential solutions of grid-forming converters applied to wind power generation system—An overview

Authors

Liang Huang,Chao Wu,Dao Zhou,Liang Chen,Daniela Pagnani,Frede Blaabjerg

Published Date

2023/1/19

As the capacity of wind power generation increases, grid-forming (GFM) wind turbine generators are deemed as promising solutions to support the system frequency for future low inertia power grids. So far, the GFM converter with a nearly ideal dc voltage source has been studied thoroughly. However, when the GFM converter is applied to wind power applications, there are some realistic problems and challenges, such as coordinating wind turbine control and GFM control, limited energy to support the grid, variable wind speed, etc. These problems still need more discussion. In this paper, an overview of challenges and potential solutions of GFM converters applied to wind power generation systems are provided, where different energy reserving schemes, GFM control schemes, and overcurrent protection schemes are compared and discussed. Finally, a few perspectives on future trends are shared according to the authors’ knowledge.

Review of fault diagnosis and fault-tolerant control methods of the modular multilevel converter under submodule failure

Authors

Qian Xiao,Yu Jin,Hongjie Jia,Yi Tang,Allan Fagner Cupertino,Yunfei Mu,Remus Teodorescu,Frede Blaabjerg,Josep Pou

Journal

IEEE Transactions on Power Electronics

Published Date

2023/6/6

Modular multilevel converters (MMCs) have attracted extensive research interests in various ac and dc conversion applications due to their modular structure and excellent harmonic performance. However, the large number of power switches increases the potential risk of submodule (SM) failure, which greatly challenges the safe and reliable operation of the MMC. This article presents a detailed review of fault diagnosis and fault-tolerant control methods of the MMC under SM failures. On this basis, comprehensive comparisons are conducted among different fault diagnosis methods, and verification results are provided to analyze the advantages and disadvantages of the popular fault-tolerant control methods. Finally, the review is concluded, and future trends and research opportunities are discussed.

Analysis and optimal modulation for 2/3-level DAB converters to minimize current stress with five-level control

Authors

Chaochao Song,Ariya Sangwongwanich,Yongheng Yang,Yiwei Pan,Frede Blaabjerg

Journal

IEEE Transactions on Power Electronics

Published Date

2023/1/10

A two-to-three-level dual-active-bridge (DAB) dc–dc converter has high potential to become a promising solution for medium-voltage high-power applications. However, its switching characteristics, modeling, and optimal modulation schemes have not been comprehensively explored yet. In order to avoid voltage and current distortions and ensure reliable operation, this article analyzes the operating constraints for the neutral-point-clamped (NPC) DAB converters. Based on the obtained operating constraints, the transferred power and current stress models under a five-level control scheme, which is considered as one of the most advantageous control strategies for the NPC DAB converters, are obtained with an equivalent-wave modeling method. Generic control strategies based on analytical solutions have not been fully explored for the multilevel DAB converters due to the increased number of control variables …

Overview of multi-stage charging strategies for Li-ion batteries

Authors

Muhammad Usman Tahir,Ariya Sangwongwanich,Daniel-Ioan Stroe,Frede Blaabjerg

Published Date

2023/6/5

To reduce the carbon footprint in the transportation sector and improve overall vehicle efficiency, a large number of electric vehicles are being manufactured. This is due to the fact that environmental concerns and the depletion of fossil fuels have become significant global problems. Lithium-ion batteries (LIBs) have been distinguished themselves from alternative energy storage technologies for electric vehicles (EVs) due to superior qualities like high energy and power density, extended cycle life, and low maintenance cost to a competitive price. However, there are still certain challenges to be solved, like EV fast charging, longer lifetime, and reduced weight. For fast charging, the multi-stage constant current (MSCC) charging technique is an emerging solution to improve charging efficiency, reduce temperature rise during charging, increase charging/discharging capacities, shorten charging time, and extend the …

Small-signal stability assessment and interaction analysis for bipolar DC microgrids

Authors

Minrui Leng,Guohua Zhou,Guodong Xu,Subham Sahoo,Xueshan Liu,Qun Zhou,Yue Yin,Frede Blaabjerg

Journal

IEEE Transactions on Power Electronics

Published Date

2022/12

Bipolarity in dc microgrids is desirable as it enhances the system's reliability and efficiency. However, the stability assessment for a bipolar dc microgrid is challenging due to the integration of a three-wire dc distribution line and numerous connected power converters, which is different from the stability analysis of a conventional unipolar dc microgrid. In this article, the basic form is arranged by a generalized voltage source or current source, and the simplified form is derived by looking into the different bus ports of a bipolar system in detail. Then, an impedance sum criteria-based stability conditions of different bus ports in the bipolar dc microgrid are proposed. To explore the mutual influence of the stability among different bus ports and investigate the stability issues caused by unbalanced loads connected to the symmetrical bus port, three cases are studied: 1) ± V dc bus ports are connected with balanced and …

See List of Professors in Frede Blaabjerg University(Aalborg Universitet)

Frede Blaabjerg FAQs

What is Frede Blaabjerg's h-index at Aalborg Universitet?

The h-index of Frede Blaabjerg has been 136 since 2020 and 197 in total.

What are Frede Blaabjerg's top articles?

The articles with the titles of

Power electronics-based safety enhancement technologies for lithium-ion batteries: An overview from battery management perspective

Energy transition technology: The role of power electronics

Uncertainty compensation with coordinated control of EVs and DER systems in smart grids

Multi-energy management of interconnected multi-microgrid system using multi-agent deep reinforcement learning

Overview of US patents for energy management of renewable energy systems with hydrogen

Integrating black start capabilities into offshore wind farms by grid‐forming batteries

Dynamic modeling, stability analysis and control of interconnected microgrids: A review

Inertia estimation of renewable-energy-dominated power system

...

are the top articles of Frede Blaabjerg at Aalborg Universitet.

What are Frede Blaabjerg's research interests?

The research interests of Frede Blaabjerg are: Power Electronics, Renewable Energy, Wind Turbines, Power Systems, Electrical Engineering

What is Frede Blaabjerg's total number of citations?

Frede Blaabjerg has 196,126 citations in total.

What are the co-authors of Frede Blaabjerg?

The co-authors of Frede Blaabjerg are Remus Teodorescu, Zhe Chen, Marco Liserre, Tomislav Dragičević, Xiongfei Wang, Yongheng Yang.

    Co-Authors

    H-index: 104
    Remus Teodorescu

    Remus Teodorescu

    Aalborg Universitet

    H-index: 91
    Zhe Chen

    Zhe Chen

    Aalborg Universitet

    H-index: 89
    Marco Liserre

    Marco Liserre

    Christian-Albrechts-Universität zu Kiel

    H-index: 72
    Tomislav Dragičević

    Tomislav Dragičević

    Danmarks Tekniske Universitet

    H-index: 70
    Xiongfei Wang

    Xiongfei Wang

    Aalborg Universitet

    H-index: 65
    Yongheng Yang

    Yongheng Yang

    Zhejiang University

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