Multiobjective Optimization and Topology Selection for a Module-Integrated Inverter

Mirjafari, Mehran; Harb, Souhib; Balog, Robert S.

doi:10.1109/tpel.2014.2353055

Cited by 31 publications

(17 citation statements)

References 37 publications

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“…15, it has been shown that the THD of the output currents is always less than 5% as pre-calculated from Table 4. However, if the low order harmonics increased and lead the THD to exceed 5%, harmonic eliminators can be used in the control scheme to remove these components as shown in [1], but this will add to the complexity of the control system. For energy storage elements such as C p , C s in Cuk-module or L s and L p in other modules, the values are chosen to ensure that the element will withstand the peak value and to avoid saturation.…”

Section: ) Passive Elements and Efficienciesmentioning

confidence: 99%

“…The remarkable development in the installed capacity of distributed generators (DGs) increases the international aspiration for improving the performance of power inverters employed in renewable energy systems (RESs) such as photovoltaic (PV) systems [1]. The employed inverters are required to have small size, light weight and low power losses.…”

Section: Introductionmentioning

confidence: 99%

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Current-Source Single-Phase Module Integrated Inverters for PV Grid-Connected Applications

2020

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This paper presents a modular grid-connected single-phase system based on series-connected current-source module integrated converters (MICs). The modular configuration improves the reliability, redundancy and scalability of photovoltaic (PV) distributed generators. In this system, each PV panel is connected to a dc/ac inverter to permit individual Maximum Power Point Tracking (MPPT) operation for each panel. Thus, the harvested power from the PV system will increase significantly. There are four different inverter topologies suitable to be used as MICs with different performances in terms of filtering elements size, power losses, efficiency, output voltage range, and high frequency transformers' size. For the MPPT control, the oscillating even order harmonic components should be eliminated from the inverter's input side otherwise the maximum power cannot be extracted. The proposed modulation scheme in this paper will ease the control of inverter's input and output sides. Therefore, the 2 nd order harmonic in the input current can be eliminated without adding new active semiconductor switches. A repetitive controller coupled with proportional-resonant controllers are employed to achieve accurate tracking for grid side as well as input side currents. Comparisons and performance evaluations for the proposed MICs are presented and validated with 1 kVA prototype controlled by TMS320F29335 DSP.

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Section: ) Passive Elements and Efficienciesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Current-Source Single-Phase Module Integrated Inverters for PV Grid-Connected Applications

2020

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“…In detail, the DMPPT boost inductor size and mass are minimized and the energy captured by the PV module is maximized in [10]. Multi-objective optimization has been adopted in [19][20] to design the power stage of a Module-Integrated Inverter. In [21][22], NSGA-II algorithms are proposed as promising techniques to reach optima design specifications meeting design time requirement.…”

Section: B Literature Reviewmentioning

confidence: 99%

Multiobjective Optimal Design of Photovoltaic Synchronous Boost Converters Assessing Efficiency, Reliability, and Cost Savings

Adinolfi

Graditi

Siano

et al. 2015

IEEE Trans. Ind. Inf.

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Optimal design of switching converters for the integration\ud and optimal exploitation of renewable energy sources\ud (RES) represents a crucial issue often debated in the recent power\ud electronics literature. The design problem required to carry out\ud a multiobjective optimization characterized by simultaneous conflicting\ud objectives, such as efficiency, reliability, and price, where\ud the best compromise solution should be found by the decision\ud maker among Pareto-optimal solutions. In this paper, a novel\ud design method for distributed maximum power point tracking\ud (DMPPT) synchronous boost converter is proposed. The method\ud is based on nondominated sorting genetic algorithm with the aim\ud to obtain the best synchronous rectification (SR) boost topology\ud while considering different targets such as converter efficiency\ud and reliability maximization, as well as converter price minimization.\ud New weighted indices are also proposed for a more realistic\ud characterization of the devices

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“…To this end, the assessment of VSC topologies at different dc voltage levels has been a key research area that received interest recently [9], [16], [17]. This is also evidenced in the several demonstration projects that have been or being implemented around the globe.…”

Section: Introductionmentioning

confidence: 99%

Reliability and Cost-Oriented Analysis, Comparison and Selection of Multi-Level MVdc Converters

Abeynayake

Joseph

et al. 2021

IEEE Trans. Power Delivery

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DC technology has gained considerable interest in the medium voltage applications due to the benefits over the AC counterpart. However, to utilize the full capacity of this development, the selection of a suitable power electronic converter topology is a key aspect. From the pool of voltage source converters (VSC's), it is unclear which topology is suitable for multi-megawatt applications at medium voltage dc (MVdc) levels. To address this, the paper proposes a selection guideline based on reliability and optimum redundancy levels of VSCs for MVdc applications. This will be combined with other functional factors such as operational efficiency and return-on-investment. Three candidate multi-level topologies namely three-level neutral point clamped converter (3L-NPC), modular multi-level converter (MMC) and cascaded 3L-NPC (which is being used for the first MVdc link in the UK) have been evaluated over two-level-VSC from ±10 kV to ±50 kV. Results show that with the increase of MVdc voltage level MMC shows better performance whereas at low MVdc voltage levels 3L-NPC is the prominent topology.

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Multiobjective Optimization and Topology Selection for a Module-Integrated Inverter

Cited by 31 publications

References 37 publications

Current-Source Single-Phase Module Integrated Inverters for PV Grid-Connected Applications

Current-Source Single-Phase Module Integrated Inverters for PV Grid-Connected Applications

Multiobjective Optimal Design of Photovoltaic Synchronous Boost Converters Assessing Efficiency, Reliability, and Cost Savings

Reliability and Cost-Oriented Analysis, Comparison and Selection of Multi-Level MVdc Converters

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