IEEE Organizations related to Multilevel Converters

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Conferences related to Multilevel Converters

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2020 22nd European Conference on Power Electronics and Applications (EPE'20 ECCE Europe)

Energy conversion and conditioning technologies, power electronics, adjustable speed drives and their applications, power electronics for smarter grid, energy efficiency,technologies for sustainable energy systems, converters and power supplies


2020 IEEE 29th International Symposium on Industrial Electronics (ISIE)

ISIE focuses on advancements in knowledge, new methods, and technologies relevant to industrial electronics, along with their applications and future developments.


2020 IEEE Applied Power Electronics Conference and Exposition (APEC)

APEC focuses on the practical and applied aspects of the power electronics business. Not just a power designer’s conference, APEC has something of interest for anyone involved in power electronics including:- Equipment OEMs that use power supplies and converters in their equipment- Designers of power supplies, dc-dc converters, motor drives, uninterruptable power supplies, inverters and any other power electronic circuits, equipments and systems- Manufacturers and suppliers of components and assemblies used in power electronics- Manufacturing, quality and test engineers involved with power electronics equipment- Marketing, sales and anyone involved in the business of power electronic- Compliance engineers testing and qualifying power electronics equipment or equipment that uses power electronics


2020 IEEE Energy Conversion Congress and Exposition (ECCE)

IEEE-ECCE 2020 brings together practicing engineers, researchers, entrepreneurs and other professionals for interactive and multi-disciplinary discussions on the latest advances in energy conversion technologies. The Conference provides a unique platform for promoting your organization.

  • 2019 IEEE Energy Conversion Congress and Exposition (ECCE)

    IEEE-ECCE 2019 brings together practicing engineers, researchers, entrepreneurs and other professionals for interactive and multi-disciplinary discussions on the latest advances in energy conversion technologies. The Conference provides a unique platform for promoting your organization.

  • 2018 IEEE Energy Conversion Congress and Exposition (ECCE)

    The scope of ECCE 2018 includes all technical aspects of research, design, manufacture, application and marketing of devices, components, circuits and systems related to energyconversion, industrial power and power electronics.

  • 2017 IEEE Energy Conversion Congress and Exposition (ECCE)

    ECCE is the premier global conference covering topics in energy conversion from electric machines, power electronics, drives, devices and applications both existing and emergent

  • 2016 IEEE Energy Conversion Congress and Exposition (ECCE)

    The Energy Conversion Congress and Exposition (ECCE) is focused on research and industrial advancements related to our sustainable energy future. ECCE began as a collaborative effort between two societies within the IEEE: The Power Electronics Society (PELS) and the Industrial Power Conversion Systems Department (IPCSD) of the Industry Application Society (IAS) and has grown to the premier conference to discuss next generation technologies.

  • 2015 IEEE Energy Conversion Congress and Exposition

    The scope of ECCE 2015 includes all technical aspects of research, design, manufacture, application and marketing of devices, components, circuits and systems related to energy conversion, industrial power and power electronics.

  • 2014 IEEE Energy Conversion Congress and Exposition (ECCE)

    Those companies who have an interest in selling to: research engineers, application engineers, strategists, policy makers, and innovators, anyone with an interest in energy conversion systems and components.

  • 2013 IEEE Energy Conversion Congress and Exposition (ECCE)

    The scope of the congress interests include all technical aspects of the design, manufacture, application and marketing of devices, components, circuits and systems related to energy conversion, industrial power conversion and power electronics.

  • 2012 IEEE Energy Conversion Congress and Exposition (ECCE)

    The IEEE Energy Conversion Congress and Exposition (ECCE) will be held in Raleigh, the capital of North Carolina. This will provide a forum for the exchange of information among practicing professionals in the energy conversion business. This conference will bring together users and researchers and will provide technical insight as well.

  • 2011 IEEE Energy Conversion Congress and Exposition (ECCE)

    IEEE 3rd Energy Conversion Congress and Exposition follows the inagural event held in San Jose, CA in 2009 and 2nd meeting held in Atlanta, GA in 2010 as the premier conference dedicated to all aspects of energy processing in industrial, commercial, transportation and aerospace applications. ECCE2011 has a strong empahasis on renewable energy sources and power conditioning, grid interactions, power quality, storage and reliability.

  • 2010 IEEE Energy Conversion Congress and Exposition (ECCE)

    This conference covers all areas of electrical and electromechanical energy conversion. This includes power electrics, power semiconductors, electric machines and drives, components, subsystems, and applications of energy conversion systems.

  • 2009 IEEE Energy Conversion Congress and Exposition (ECCE)

    The scope of the conference include all technical aspects of the design, manufacture, application and marketing of devices, circuits, and systems related to electrical energy conversion technology


IECON 2020 - 46th Annual Conference of the IEEE Industrial Electronics Society

IECON is focusing on industrial and manufacturing theory and applications of electronics, controls, communications, instrumentation and computational intelligence.


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Periodicals related to Multilevel Converters

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No periodicals are currently tagged "Multilevel Converters"


Most published Xplore authors for Multilevel Converters

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Xplore Articles related to Multilevel Converters

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Comparative analysis of different MPPT schemes for photovoltaic integration of modular multilevel converter

2016 IEEE 17th Workshop on Control and Modeling for Power Electronics (COMPEL), 2016

This paper demonstrates a comparative study of two well-known Maximum Power Point Tracking (MPPT) algorithms in photovoltaic (PV) plants based on Modular Multilevel Converter (MMC). The Perturb and Observe (P&O) technique which is widely deployed throughout industry is considered for the comparison evaluation together with the Ripple Correlation Control (RCC) strategy. The efficiency of entire PV generation system heavily depends ...


Synchronization of different frequency power grids by back-to-back modular multilevel converter with CSMC-SPWM algorithm

2016 2nd International Conference on Electrical, Computer & Telecommunication Engineering (ICECTE), 2016

This paper presents a control process and the functioning of Back-to-Back Modular Multilevel Converter (MMC) in connecting asynchronous grids of high- voltage DC transmission system. CSMC-SPWM algorithm is used to generate gate pulses of the switching devices of back-to-back MMC for running, shifting the system from higher to any other lower level of operation and connecting of two different frequencies ...


A New Quasi Three-level Hybrid Modular Multilevel Converter

2018 IEEE International Power Electronics and Application Conference and Exposition (PEAC), 2018

In view of the limitations of the traditional Modular Multilevel Converter (MMC) in the prior art, a novel quasi three-level hybrid MMC is proposed in this paper. This novel topology inherits the advantages of the quasi two-level MMC's modularity, easy expansion, common DC bus and high efficiency. Meanwhile, the output voltage levels are increased up to three. Consequently, the harmonics ...


Operating region of modular multilevel converter for HVDC with controlled second-order harmonic circulating current: Elaborating P-Q capability

2016 IEEE Power and Energy Society General Meeting (PESGM), 2016

The operating region of modular multilevel converter (MMC) is limited by the maximum allowable voltage ripple of cells, which is associated with the arm energy variation. Injecting the controlled second-order harmonic component into the circulating current can reduce energy variation of arm and thus extend the operating region of MMC. Care must be taken, however that the second-order circulating current ...


An equivalent circuit method for modelling and simulation of modular multilevel converter in real-time HIL test bench

2017 IEEE Power & Energy Society General Meeting, 2017

In China, two modular multilevel converter (MMC) projects were recently commissioned, and other two are currently under construction. The real time hardware-in-the-loop (HIL) test bench played an important role in validating the manufacturer's controllers. The full detail MMC model does not fit with the HIL test bench, which has to solve the circuit containing numerous switches and handle a large ...


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Educational Resources on Multilevel Converters

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IEEE-USA E-Books

  • Comparative analysis of different MPPT schemes for photovoltaic integration of modular multilevel converter

    This paper demonstrates a comparative study of two well-known Maximum Power Point Tracking (MPPT) algorithms in photovoltaic (PV) plants based on Modular Multilevel Converter (MMC). The Perturb and Observe (P&O) technique which is widely deployed throughout industry is considered for the comparison evaluation together with the Ripple Correlation Control (RCC) strategy. The efficiency of entire PV generation system heavily depends on the power conversion unit in addition to the employed MPPT performance, in particular during fast varying environmental conditions. This paper presents an outcome of a detailed evaluation of the simulated PV system utilizing both MPPT methods for the MMC with respect to dynamic performance, solar panels mismatch, solar irradiance variation and practical implementation. The proposed PV generation system with a 5-level MMC inverter is evaluated through simulation to verify the main findings.

  • Synchronization of different frequency power grids by back-to-back modular multilevel converter with CSMC-SPWM algorithm

    This paper presents a control process and the functioning of Back-to-Back Modular Multilevel Converter (MMC) in connecting asynchronous grids of high- voltage DC transmission system. CSMC-SPWM algorithm is used to generate gate pulses of the switching devices of back-to-back MMC for running, shifting the system from higher to any other lower level of operation and connecting of two different frequencies power grids. In this research two power grids having different frequencies of 50Hz and 60Hz are connected. The simulation results shows that the MMC operates well and synchronized properly with asynchronous grids and power can transmitted in both direction. A tap changing transformer is used to step up the output voltage of the converter during reduced number of level operation.

  • A New Quasi Three-level Hybrid Modular Multilevel Converter

    In view of the limitations of the traditional Modular Multilevel Converter (MMC) in the prior art, a novel quasi three-level hybrid MMC is proposed in this paper. This novel topology inherits the advantages of the quasi two-level MMC's modularity, easy expansion, common DC bus and high efficiency. Meanwhile, the output voltage levels are increased up to three. Consequently, the harmonics of output voltage are reduced, so the required inductance and capacitance of the output filter can also be reduced. The structure and the operation principles of the proposed topology are presented and investigated in detail and a simulation model is built in order to verify the performance of the proposed topology.

  • Operating region of modular multilevel converter for HVDC with controlled second-order harmonic circulating current: Elaborating P-Q capability

    The operating region of modular multilevel converter (MMC) is limited by the maximum allowable voltage ripple of cells, which is associated with the arm energy variation. Injecting the controlled second-order harmonic component into the circulating current can reduce energy variation of arm and thus extend the operating region of MMC. Care must be taken, however that the second-order circulating current affects the arm current and inappropriately injected harmonic current may cause the arm current polarity change undesirably. Therefore, this paper first investigates and proposes the maximum allowable second-order circulating current for extending the operating region reliably and efficiently. The active and reactive power capability of MMC is further elaborated and illustrated in line with the maximum excess energy capability for two cases, running with (1) the original operating region and (2) the extended operating region. Finally, the P-Q diagrams for contingent operating conditions with faulty or disabled submodules are presented. Understanding unique shape and change of P-Q capability with credible submodule failure contingency should be crucial for planning MMC-HVDC lines, and determining the energy requirements and the level of redundancy in submodules properly in order to achieve the envisioned benefits of the new HVDC. The efficacy and accuracy of the research findings are validated for MMC-HVDC system using PSCAD/EMTDC.

  • An equivalent circuit method for modelling and simulation of modular multilevel converter in real-time HIL test bench

    In China, two modular multilevel converter (MMC) projects were recently commissioned, and other two are currently under construction. The real time hardware-in-the-loop (HIL) test bench played an important role in validating the manufacturer's controllers. The full detail MMC model does not fit with the HIL test bench, which has to solve the circuit containing numerous switches and handle a large amount of inputs and outputs (I/Os) at a small time step for real time simulation. The main challenge is to find a method to model and simulate the MMC systems with sufficient detail, accuracy, and speed. This paper presents an equivalent circuit method for the HIL test bench. The circuit inside sub-module (SM) is represented by mathematical equations, implemented in CPU or field-programmable gate array (FPGA), and solved in parallel to achieve real time performance. This method based test bench is used in those MMC projects in China and connected to the manufacturer's controllers for HIL tests. The model accuracy and simulation speed achieved by this method met the requirements of the HIL tests. In this paper, various scenarios are tested in an MMC HVDC study system. The results achieved by the proposed method have high agreement with those of a reference model in EMTP-RV.

  • Capacitor voltage balancing in back-to-back modular multilevel converter

    Modular Multilevel Converter is a widely accepted technology for HVDC applications. It consists of several sub-modules or cells connected in cascade. These are bidirectional chopper cells and each one of them has a floating capacitor. This paper discusses the modulation and voltage balancing strategies which are essential for the converter to work as rectifier or inverter. The discussion is followed by the simulations of the Back-to-Back Modular Multilevel Converter (MMC) topology employed in a model HVDC power system using MATLAB/SIMULINK.

  • Operation of modular multilevel converter drive with reduced submodules and DC supply

    Modular Multilevel Converter (MMC ) is a subject of current research area in power electronics for both acedamic and industrial scope. This paper focuses on selection of suitable carrier based PWM technique for MMC used to drive Induction Motor (IM). The number of submodule connected in one arm can be reduced by selecting proper modulation technique. Also the design aspects shows that, the lower submodules can share common dc supply as their ground level is same. Hence in all paper focuses on reducing the number of switches and dc supply for MMC topology used for operation of electric motor drive. Simulation results are provided to show the suitability of the topology with different modulation pattern. A laboratory prototype was develop for three level output to confirm the results provided by simulation. Instead of capacitors, separate DC supply is used for each submodule as it eliminates problem of capacitor balancing.

  • Cell-Voltage Ripple Reduction for Modular Multilevel Converters with Zero-Mean Current Command Injection

    This study is to suppress the cell voltage and arm current in modular multilevel converters (MMCs) based on power balancing and current tracking control law. MMCs have been widely applied to direct-current transmission, high-voltage grid power injection, back-to-back power transfer, energy storage systems and renewable energy systems. In particular, the renewable energy systems have been depicting a lot of prospect due to low pollution, natural replenishment, large capacity, and sustainable development. The dimension of each cell capacitors and the rating of switches play a critical part in designing an MMC, and cell voltages highly interact to arm currents, dc circulation currents and grid-injection currents. Normally, higher arm current require lower cell-voltages when adopting a zero-mean current injection technique. This paper presents unique approaches to deriving cell-voltage expression in terms of arm currents, injected zero-mean current and current tracking control laws, on which cell-voltage ripple reduction and arm-current swing suppression can be achieved. Simulation results obtained from a 10 kW single-phase MMC have verified the analysis and discussion.

  • The mechanism and suppression strategies of oscillating current between the shunt and series converters of 35kV MMC-UPQC

    Unified Power Quality Conditioner (UPQC) based on a modular multi-level converter (MMC) (referred to as MMC-UPQC) is more suitable for high-voltage large-capacity applications. Because of short electrical distance and strong electrical coupling, there may be oscillating current between shunt and series converter of MMC-UPFC. Based on accession to the grid and practicable grounding design, the equivalent differential mode and common mode oscillating circuit of MMC-UPQC were obtained. And through the equivalent oscillating circuit and MMC-UPQC works principle, the mechanism of oscillating circuit was drawn. Finally, two methods closed-loop suppression and virtual resistance was designed to suppress the oscillating current, and, Validated by RTDS simulation.

  • A modified reduced frequency capacitor voltage balancing strategy with reduced number of sensors for modular multilevel converters

    The balancing of sub-module capacitor voltages of modular multi-level converters (MMC) is considered to be an essential process for keeping the quality of the output power at considerable limits. This paper presents a new capacitor voltage estimation technique which feeds the capacitor voltage balancing control. This strategy not only eliminates the need for measuring the sub-module capacitor voltages but also it removes the communication channels needed to transmit the readings of these measurements. The proposed strategy is tested using PSCAD/EMTDC software package and simulation results showed a robust behavior during normal as well as abnormal operating conditions.



Standards related to Multilevel Converters

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Jobs related to Multilevel Converters

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