Application of solid state transformers in utility scale solar power plants

Foureaux, Nicole C.; Adolpho, Leonardo; Silva, Sidelmo M.; Brito, José A. S.; Filho, Braz J. Cardoso

doi:10.1109/pvsc.2014.6924909

Cited by 22 publications

(4 citation statements)

References 12 publications

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“…For this purpose, a Dual Active Bridge (DAB) converter for the dc-dc stage of an SST was considered, according to the authors of [101], as the main key for integrating PV panels with the power grid. In [102], a modular converter based on an SST for PV power plants was detailed. In [103], an energy router based on a three-stage SST with a dual active bridge topology was proposed for designing power supply systems for non-railway consumers of the railroads, ensuring reliable integration of distributed generation plants operating with the use of RES.…”

Section: Sst and Renewable Energy Sourcesmentioning

confidence: 99%

A Review on Power Electronics Technologies for Power Quality Improvement

et al. 2021

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Nowadays, new challenges arise relating to the compensation of power quality problems, where the introduction of innovative solutions based on power electronics is of paramount importance. The evolution from conventional electrical power grids to smart grids requires the use of a large number of power electronics converters, indispensable for the integration of key technologies, such as renewable energies, electric mobility and energy storage systems, which adds importance to power quality issues. Addressing these topics, this paper presents an extensive review on power electronics technologies applied to power quality improvement, highlighting, and explaining the main phenomena associated with the occurrence of power quality problems in smart grids, their cause and effects for different activity sectors, and the main power electronics topologies for each technological solution. More specifically, the paper presents a review and classification of the main power quality problems and the respective context with the standards, a review of power quality problems related to the power production from renewables, the contextualization with solid-state transformers, electric mobility and electrical railway systems, a review of power electronics solutions to compensate the main power quality problems, as well as power electronics solutions to guarantee high levels of power quality. Relevant experimental results and exemplificative developed power electronics prototypes are also presented throughout the paper.

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Section: Sst and Renewable Energy Sourcesmentioning

confidence: 99%

A Review on Power Electronics Technologies for Power Quality Improvement

et al. 2021

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“…Solid state transformer (SST) is an emerging technology that could influence the developments in many areas such as smart-grids, traction systems, the system with renewable energy sources (RESs) to mention just a few [1]- [3]. Some advantages of SST when compared with low-frequency transformer (LFT) include reactive power compensation, voltage regulation, power flow control, voltage sag compensation, bi-directional power flow, fault current limiting, harmonic block, and galvanic isolation [4]- [6].…”

Section: Introductionmentioning

confidence: 99%

State of the Art of Solid-State Transformers: Advanced Topologies, Implementation Issues, Recent Progress and Improvements

et al. 2020

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Solid-state transformer (SST) is an emerging technology integrating with a transformer power electronics converters and control circuitry. This paper comprehensively reviews the SST topologies suitable for different voltage levels and with varied stages, their control operation, and different trends in applications. The paper discusses various SST configurations with their design and characteristics to convert the input to output under unipolar and bipolar operation. A comparison between the topologies, control operation and applications are included. Different control models and schemes are explained. Potential benefits of SST in many applications in terms of controllability and the synergy of AC and DC systems are highlighted to appreciate the importance of SST technologies. This review highlights many factors including existing issues and challenges and provides recommendations for the improvement of future SST configuration and development.

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“…The analysis of scientific publications shows that in the given power range, the most traditional solu tions are the use of lowpower string inverters (Fig. 1, a) [2,3] or powerful grid tie inverter [2,4,5] (Fig. 1, b) to connect ar rays of photovoltaic modules to the industrial network.…”

Section: Introductionmentioning

confidence: 99%

“…The use of lowpower laboratory samples [4] and their simulations [17] does not allow for a full assessment of the ad equacy of the data obtained as well as for the extrapolation of the experimental results to powerful industrial systems.…”

Section: Introductionmentioning

confidence: 99%

Simulation of industrial solar photovoltaic station with transformerless converter system

Tugay¹,

Korneliuk²,

Shkurpela³

et al. 2020

Nauk. visn. nat. hirn. univ.

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Purpose. Creation of a detailed model of a solar photovoltaic station with a converter system based on a cascaded multi-level inverter with the MPPT (maximum power point tracker) function to investigate its operating modes in distributed power systems. Methodology. To carry out the research, the paper used the methods of system synthesis, mathematical and computer modeling to create photovoltaic station models and components; a physical experiment in obtaining thermal characteristics of the photovoltaic module Solarday SDM72360 W; modern power theories for synthesis of the vector control system of a multi-level inverter. Findings. the Matlab-model of solar photovoltaic station with transformerless 29-level cascade voltage inverter is synthesized. The model confirmed the serviceability and efficiency of the converter system and the power plant as a whole. An algorithm is proposed and an MPP tracker with volt-ampere characteristics of the photovoltaic module, which corresponds to the maximum power extraction, is synthesized on the basis of the algorithm. The algorithm was validated by the model for any solar radiation intensity. Originality. The total mathematical model of the photoelectric module, which accounts for its energy and heat characteristics, is obtained and can be used for simulating the operation of any computer model of the photoelectric converter under Matlab/Simulink/SimPowerSystems environment. Practical value. The model results indicate the prospects of industrial implementation of transformerless multi-level converter systems to be used in the structure of powerful solar photovoltaic stations.

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Application of solid state transformers in utility scale solar power plants

Cited by 22 publications

References 12 publications

A Review on Power Electronics Technologies for Power Quality Improvement

A Review on Power Electronics Technologies for Power Quality Improvement

State of the Art of Solid-State Transformers: Advanced Topologies, Implementation Issues, Recent Progress and Improvements

Simulation of industrial solar photovoltaic station with transformerless converter system

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