Thiago Batista Soeiro

University of Twente

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Pavol Bauer

Delft University of Technology

Jianning Dong

Delft University of Technology

P. Venugopal

University of Twente

Johann W. Kolar

École Polytechnique Fédérale de Lausanne

Francesca Grazian

Delft University of Technology

Junzhong Xu

Shanghai Jiao Tong University

Marcelo Lobo Heldwein

Technical University of Munich

Laura Ramírez-Elizondo

Delft University of Technology

Wenli Shi

Delft University of Technology

Marco Stecca

Delft University of Technology

Cooperative Institutions

Delft University of Technology

Aalborg University

University of Twente

ABB (Switzerland)

Shanghai Jiao Tong University

ETH Zurich

Universidade Federal de Santa Catarina

University of Nottingham

Institute of Electrical and Electronics Engineers

Zhejiang University

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High efficiency three-phase unidirectional bucktype PFC rectifier concepts

IECON 2020 The 46th Annual Conference of the IEEE Industrial Electronics Society (2013)

Thiago Batista Soeiro Gean J. Maia Marcio S. Ortmann Marcelo Lobo Heldwein

This paper presents highly efficient three-phase unidirectional buck-type unity power factor rectifiers well-suited for various power electronic applications such as high power EV battery charging or DC distribution systems. The circuits are assembled by incorporating two auxiliary circuit branches into standard three-phase buck-type PFC topologies, each one comprising of one active switch and three diodes. This enables redundant current paths for distributing the impressed output DC currents to the AC input terminals, which can be potentially used to reduce the system's total semiconductor losses and/or increase its output power capability. The advantages of a new converter constructed with a three-phase six-switch buck-type PFC, including the principles of operation, modulation strategy and suitable control structure are described in this paper. Finally, the proposed converter is compared with the conventional six-switch buck-type converter and SWISS rectifier. According to the results, the studied AC-to-DC system is the topology of choice for a buck-type PFC.

Buck converter

Rectifier (neural networks)

Three-phase

Power Electronics

10.1109/iecon.2013.6700428

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Citations (12)

An Adaptive and Multifunctional DC-DC Converter for Onshore Ship Charging

Sohaib Qazi P. Venugopal Gert Rietveld Alan J. Watson Patrick Wheeler

Maritime electrification is a critical upgrade to enable sustainable and environmentally friendly shipping. Therefore, in recent years, there has been a significant interest in the development of battery-based boats and ferries. A key element for the reliable operation of these vessels is the onshore charging interface. Unlike in electric cars, the onboard power system and the operating voltage in different vessels can vary over a significantly large range. Therefore, the development of a multi-functional charging unit can be challenging. This paper proposes a new power electronics converter that comprises an adaptable charging interface that can operate efficiently over a very wide range of output voltage, and deliver power to different vessels. Simulation results are presented to illustrate the operation of the proposed circuit.

10.1109/itec55900.2023.10187075

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Citations (1)

Analysis of Magnetic Field Emissions in Inductive Power Transfer EV Chargers Following Reference Designs in SAE J2954/2019

2022 IEEE International Symposium on Circuits and Systems (ISCAS) (2020)

Wenli Shi Francesca Grazian Jianning Dong Thiago Batista Soeiro Pavol Bauer

This paper aims to investigate the radiated magnetic field by 11 kW inductive power transfer (IPT) systems used for the charging of electric vehicles. Two reference designs suggested by SAE J2954 are studied. Both designs are analysed to obtain the coils winding currents, and 3D FEM models are built in COMSOL without considering the car chassis, which constitutes a conservative approach. The magnetic field intensity at specific distances from the IPT coupler are calculated. Finally, the simulation results are compared with the respective magnetic field limits defined in the international standards SAE J2954, IEC 61980-1 and ICNIRP. The results show that the magnetic field radiations at 10 meters points are significantly lower than the limits established in the SAE J2954, while the emissions at 0.9 meters points are only slightly below the limits defined by ICNIRP.

Chassis

Wireless Power Transfer

10.1109/iscas45731.2020.9180787

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A Simplified Modulated Model Predictive Control for a Grid-Tied Three-Level T-Type Inverter

Junzhong Xu Thiago Batista Soeiro Fei Gao Houjun Tang Pavol Bauer

The implementation of finite-control-set model predictive control (FCS-MPC) in grid-tied inverters can make the system to suffer from poor harmonics performance, which may complicate the AC filter design for compliance with strict harmonic standards. To overcome this shortcoming, a simplified modulated model predictive control strategy is proposed in this paper. This control strategy not only improves current waveform total harmonic distortion (THD) without introducing additional weight factor in the cost function but can also shorten running/computational time without compromising the performance of fast current dynamic response. Herein, the detailed implementation of this control strategy is given, while considering its application to the current feedback control loop of a three-phase three-level T-type inverter modulated at constant switching frequency. Finally, PLECS circuit simulations are used to verify the feasibility and effectiveness of the proposed control strategy and to benchmark its performance to the classical FCS-MPC strategy and the application of a PI-controller.

Model Predictive Control

Benchmark (surveying)

Harmonic

10.1109/isie45063.2020.9152376

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Citations (3)

Carrier-Based Modulated Model Predictive Control Strategy for Three-Phase Two-Level VSIs

IEEE Transactions on Energy Conversion (2021)

Junzhong Xu Thiago Batista Soeiro Fei Gao Linglin Chen Houjun Tang

The implementation of finite-control-set model predictive control (FCS-MPC) in voltage source inverters (VSIs) can make the system suffer from poor current harmonics performance, which may complicate the design of the required AC filter. To overcome this shortcoming, a carrier-based modulated model predictive control (CB-MMPC) strategy is proposed in this paper. This method enables the utilization of existing PWM modulation techniques with FCS-MPC, where a modulation waveform with zero-sequence signal injection is generated and compared to a triangular carrier wave, while optimizing the selection of the switching states. As it is shown, the studied CB-MMPC strategy not only considerably improves the current total harmonic distortion (THD) but also attains the performance of fast current dynamic response and robustness as the traditional FCS-MPC. Herein, the detailed implementation of the CB-MMPC control strategy is given, while considering its application to the current feedback control loop of a three-phase three-wire two-level VSI modulated at constant switching frequency. Finally, PLECS circuit simulation and a 3-kW VSI prototype are used to verify the superiority and the effectiveness of the presented CB-MMPC strategy. This is also benchmarked to the FCS-MPC and dead-beat based controllers.

Model Predictive Control

Robustness

10.1109/tec.2021.3073110

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Citations (27)

T-Type Converter with Zero Common-Mode Voltage Modulation for Potential Transformer-less EV Charger Application

2022 IEEE Applied Power Electronics Conference and Exposition (APEC) (2024)

Regis Nibaruta Sohaib Qazi Anand Krishnamurthy Iyer P. Venugopal Volodymyr Havryliuk

This paper introduces a modified space vector modulation technique aimed at eliminating common-mode voltage (CMV) in a three-phase three-level T-Type converter for potential transformer-less Electric Vehicle (EV) charger application. The proposed approach exclusively employs the Zero and Medium (ZM) vectors to achieve ideally zero CMV during normal operation, thereby enhancing system safety and reliability. In such an application, due to safety reasons, a residual current detection device should be added to guarantee human safety. Simulation results demonstrate the effectiveness of the approach through a comparative analysis of CMV generation in three distinct scenarios. The first scenario involves standard space vector modulation (SVM), where there is significant generation of CMV. The second scenario illustrates the implemented modulation technique with minimized dead-time that achieves close to zero CMV generation. The third scenario shows the effect of dead-time on implemented modulation technique which reintroduces some CMV but is still significantly lower compared to the conventional SVM. The implemented ZM vector modulation is verified with a 5 kW SiC based T-type converter prototype switching at approximately 20 kHz where an 89.42% reduction in CMV is achieved.

Space vector modulation

Common-mode signal

Modulation (music)

Null vector

10.1109/apec48139.2024.10509330

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The Control Stage of a Modular Multilevel Converter-based Arbitrary Wave shape Generator for Dielectric Testing of High Voltage Grid Assets

Dhanashree Ashok Ganeshpure Thiago Batista Soeiro Mohamad Ghaffarian Niasar Peter Vaessen

A Modular Multilevel Converter (MMC)-based Arbitrary Wave shape Generator (AWG) for High Voltage (HV) testing faces challenges in the control hardware to generate kHz-range high-frequency waveforms. Real Time Simulators (RTS) provide a simple way to implement the control of the MMC-based AWG in the FPGA. One of the commercially available RTS named Typhoon HIL is found to satisfy the small simulation step requirement such as minimum of 200 ns for generating kHz-range high-frequency waveforms. The performance of Typhoon HIL device is demonstrated with a scaled-down prototype of MMC-based AWG where sinusoidal and other arbitrary waveforms are generated up to 5kHz with a THD less than 5 %.

Arbitrary waveform generator

10.23919/icpe2023-ecceasia54778.2023.10213691

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Dual Active Bridge Converter With Variable Switching Frequency Modulation to Maintain ZVS

Dingsihao Lyu Coen Straathof Thiago Batista Soeiro Zian Qin Pavol Bauer

A variable switching frequency modulation for the Dual Active Bridge (DAB) converter is proposed in this paper.With this variable switching frequency modulation, the DAB converter can be operated in the ZVS-beneficial operational modes without the necessity to transition to others, thus a larger ZVS range for the DAB converter can be achieved.This modulation has potential of providing higher power efficiency and better EMI performance for the DAB converter in wide voltage range applications such as Electric Vehicle (EV) charging.A DAB converter with the variable frequency modulation method is simulated, and its effectiveness on the ZVS performance is demonstrated.

Modulation (music)

Switching frequency

Half bridge

10.23919/epe23ecceeurope58414.2023.10264290

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Citations (1)

A New Input-Parallel-Output-Series Three-Phase Hybrid Rectifier for Heavy-Duty Electric Vehicle Chargers

IECON 2020 The 46th Annual Conference of the IEEE Industrial Electronics Society (2022)

Rui Qiang Yang Wu Thiago Batista Soeiro Pierpaolo Granello Zian Qin

This paper proposes a solution to the circuit topology of heavy-duty electric vehicle (HDEV) chargers. In light of the original hybrid rectifier, a new unidirectional Input-Parallel-Output-Series (IPOS) three-phase hybrid rectifier is proposed and analyzed. The IPOS topology is advantageous at ultra-high power rating to interface the next-generation HDEV batteries which require a high and wide output voltage range of 800~1500 V with available 600/1200V commercial semiconductors. Moreover, the proposed topology is efficient, cost-effective, and scalable with the grid input current harmonic components in compliance with the IEEE-519 standard. The benefits of the IPOS topology are supported by circuit derivation, control strategy, analytical modelling, simulation, and experimental verification.

Rectifier (neural networks)

Heavy duty

10.1109/iecon49645.2022.9968988

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Citations (3)

Number of Levels, Arm Inductance and Modulation Trade-offs for High Power Medium Voltage Grid-Connected Modular Multilevel Converters

Aditya Shekhar Lucia Beloqui Larumbe Thiago Batista Soeiro Yang Wu Pavol Bauer

There is an increasing focus on integrating flexible dc links for bulk power routing in medium voltage distribution grids. In such applications, the ac-dc Modular Multilevel Converter (MMC) devised for medium voltage and high-power ratings can be an interesting choice. This paper highlights some less explored design trade-offs arising due to the limitation on N in relation to modulation frequency and arm inductance. Specifically, the study intends to describe the interdependent influence of each degree of freedom on several aspects such as capacitor voltage balancing, circulating currents and harmonic performance. Finally, the importance of considering interhar-monies in the performance assessment of the MMC instead of the conventional interpretation of distortion calculation is highlighted.

Modulation (music)

Harmonic

10.23919/icpe2019-ecceasia42246.2019.8797231

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Citations (11)