Research in matrix-converter based three-phase power-electronic transformers

Basu, Kaushik; Gupta, Ranjan; Nath, Shabari; Castelino, Gysler; Mohapatra, K.K.; Mohan, Ned

doi:10.1109/ipec.2010.5543808

Cited by 19 publications

(5 citation statements)

References 15 publications

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“…As shown in (4), is embedded in . In order to modify the PWL model (4) of HFL Inverter, first a Fourier series representation of is considered as follows: (6) where , , ,…”

Section: B Modified Pwl Modeling Of An Isolated Three-phase Hfl Invementioning

confidence: 99%

Sequence-Based Control of an Isolated DC/AC Matrix Converter

Tajfar¹,

Mazumder

2016

IEEE Trans. Power Electron.

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This paper describes the control of an isolated multi-phase high-frequency-link (HFL) matrix inverter by controlling the time evolution of its switching states (or, switching sequences). It is referred to as the optimal-switching-sequencebased control (OSBC). Unlike several conventional control schemes, where, typically the control is based on averaged model of the inverter and the modulation scheme sets a pre-determined switching sequence, OSBC synthesizes the fundamental switching sequence depending on the control needs on the fly. For instance, OSBC can seamlessly play with the inverter switching sequences if the input voltage of the inverter changes as evident in solar or wind-based energy systems. This necessitates that OSBC use a switching-sequence-based discontinuous (instead of averaged) modeling approach. Further, the stability of the closed-loop inverter is determined in OSBC using an advanced composite Lyapunov-function based approach, which also enables one to predetermine the reachability of the inverter dynamics for a given switching sequence. Thus, optimal control in OSBC is ensured under stability bound of the switching sequence. This provides a fundamental difference between OSBC and model predictive control (MPC) for inverters. This also implies that in a multi-objective OSBC, one can shift the weights of the individual cost functions to yield better inverter performance without compromising stability.

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“…As shown in (4), is embedded in . In order to modify the PWL model (4) of HFL Inverter, first a Fourier series representation of is considered as follows: (6) where , , ,…”

Section: B Modified Pwl Modeling Of An Isolated Three-phase Hfl Invementioning

confidence: 99%

Sequence-Based Control of an Isolated DC/AC Matrix Converter

Tajfar¹,

Mazumder

2016

IEEE Trans. Power Electron.

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“…The introduction of PET [24,25] however leads to better regulation and control of the bidirectional power flow between the utility-and smart-grids. A possible PET assembly compromises two AC/AC matrix converters with a high frequency link wherein a compact electronic transformer is installed.…”

Section: Matrix Converter and Power Routermentioning

confidence: 99%

The Three-Phase Power Router and Its Operation with Matrix Converter toward Smart-Grid Applications

et al. 2015

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A power router has been recently developed for both AC and DC applications that has the potential for smart-grid applications. This study focuses on three-phase power switching through the development of an experimental setup which consists of a three-phase direct AC/AC matrix converter with a power router attached to its output. Various experimental switching scenarios with the loads connected to different input sources were investigated. The crescent introduction of decentralized power generators throughout the power-grid obligates us to take measurements for a better distribution and management of the power. Power routers and matrix converters have great potential to succeed this goal with the help of power electronics devices. In this paper, a novel experimental three-phase power switching was achieved and the advantages of this operation are presented, such as on-demand and constant power supply at the desired loads.

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“…These structures give sufficient power quality features for low voltage power applications, but cannot be deployed for high voltage applications. A matrix converter based three phase SST for AC drives is presented in [9]. This topology is not suitable for emerging smart power utilities like micro-grids/smart-grids as it does not have DC bus facility.…”

Section: Introductionmentioning

confidence: 99%

Operation of a three phase solid state-Transformer under unbalanced load conditions

Venkat

Shukla

Kulkarni

2014

2014 IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES)

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Solid state transformers (SSTs) have found widespread power applications in traction locomotives, distribution systems, smart grids, etc., where they are going to replace conventional transformers and associated power enhancement equipments to provide better power quality features and functionalities. An eminent structure of SST comprises of three power conversion stages: input (AC-DC), isolation (DC-DC), and output (DC-AC). Multilevel converters are incorporated in several SSTs for operating at high voltage levels. This paper presents a three phase multilevel converter based SST (MCSST) which contains Cascaded H Bridge (CHB) multilevel converters in its input stage. Most of the reported topologies of MCSST have a common low voltage DC (LVDC) bus and a common control block for the entire SST structure.The presented MCSST consists of three independent phase modules and each phase module is controlled separately. Therefore, the outputs of these modules can be applied to both three phase loads as well as three independent single phase loads. Such a configuration can also be used to operate effectively under unbalanced load conditions. The discussed analysis of the reported work is verified using PSCAD/EMTDC simulation results.

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Research in matrix-converter based three-phase power-electronic transformers

Cited by 19 publications

References 15 publications

Sequence-Based Control of an Isolated DC/AC Matrix Converter

Sequence-Based Control of an Isolated DC/AC Matrix Converter

The Three-Phase Power Router and Its Operation with Matrix Converter toward Smart-Grid Applications

Operation of a three phase solid state-Transformer under unbalanced load conditions

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