An Isolated Three-Port Bidirectional DC-DC Converter With Decoupled Power Flow Management

Zhao, Chuanhong; Round, S.D.; Kolar, Johann W.

doi:10.1109/tpel.2008.2002056

Cited by 727 publications

(344 citation statements)

References 29 publications

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“…However, the real issue is that an excessive number of dynamic switches are available, and the utilization of transformers makes the structure massive [14,15]. The non-isolated structure does not utilize a transformer which makes for an economical and simpler structure [16][17][18][19][20].…”

Section: Introductionmentioning

confidence: 99%

Analysis of Non-Isolated Multi-Port Single Ended Primary Inductor Converter for Standalone Applications

Anuradha

Sakthivel²,

Venkatesan³

et al. 2018

Energies

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Abstract:A non-isolated Multiport Single Ended Primary Inductor Converter (SEPIC) for coordinating photovoltaic sources is developed in this paper. The proposed multiport converter topologies comprise a Single Input Multi yield (SIMO) and Multi Input Multi Output (MIMO). It is having the merits of decreased number of parts and high power density. Steady state analysis verifies the improved situation of both the proposed topologies, which is further checked through simulation results.Keywords: single input multi output; multi input multi output; single ended primary inductor converter

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Section: Introductionmentioning

confidence: 99%

Analysis of Non-Isolated Multi-Port Single Ended Primary Inductor Converter for Standalone Applications

Anuradha

Sakthivel²,

Venkatesan³

et al. 2018

Energies

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“…Centralized controller not only provides control over individual interfacing devices but also controls the entire system such that the power balance is maintained in the system under different operating modes (Wu et al, 2011;Khaligh, Cao, & Lee, 2009;Zhao, Round, & Kolar, 2008;Chen, Liao, Hung, Ming, 2015). The usage of MPPT algorithm enables PV port to operate at maximum power point at different insolation levels.…”

Section: Introductionmentioning

confidence: 99%

<b>Impact of modified perturb and observe control on MPPT of PV/battery fed three - port DC‐DC converter

Mahendran

Ramaprabha

2017

Acta Sci. Technol.

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ABSTRACT. This paper presents the modified perturb and observe (P&O) maximum power point tracking (MPPT) method for photovoltaic (PV) fed three-port DC-DC converter in PV/battery hybrid system. The proposed MPPT technique reduces the drift problem which occurs in the conventional MPPT methods by including the data of change in current (ΔI) in addition to the data used in the conventional P&O algorithm. The drift phenomenon and its effects are clearly demonstrated in this paper. The ability of the proposed P&O method to address this issue is proved by comparing the conventional P&O algorithm in different modes of operation. The performance assessment includes peak overshoot, settling time, MPP ratio and stability. The experimental validation was implemented using DSPIC30F4011 microcontroller. From the analysis and results, it could be seen that the modified P&O showed better performance in terms of accuracy in tracking the maximum power, less tracking time, high MPP ratio and reduced drift in the changing weather conditions. Keywords: current-voltage characteristics, DC-DC power converters, drift, photovoltaic systems, power demand, pulse width modulation.Impacto da modificação perturbar e observar de controle na MPPT de PV / bateria fed Três -port conversor DC-DC RESUMO. Este artigo apresenta o método de monitoramento de ponto de potência máximo (MPPT) modificado e observado (P&O) para o conversor DC-DC de três portas alimentado por energia fotovoltáica (PV) no sistema híbrido PV/bateria. A técnica MPPT proposta reduz o problema de deslocamento (drift) que ocorre nos métodos MPPT convencionais, incluindo os dados de mudança na corrente (ΔI), além dos dados usados no algoritmo P&O convencional. O fenômeno do deslocamento (drift) e seus efeitos estão claramente demonstrados neste artigo. A capacidade do método de P&O proposto para resolver este problema é comprovado comparando com o algoritmo de P&O convencional em diferentes modos de operação. A avaliação de desempenho inclui o superávit do pico, tempo de estabilização, relação de MPP e estabilidade. A validação experimental foi implementada usando o microcontrolador DSPIC3o30F4011. A partir da análise e dos resultados, verificou-se que o P&O modificado mostrou melhor desempenho em termos de precisão no rastreamento da potência máxima, menor tempo de rastreamento, alta relação de MPP e deslocamento reduzido nas condições climáticas em constante mudança.Palavras-chave: características corrente-tensão, conversores de potência DC-DC, deslocamento, sistemas fotovoltáicos, demanda de energia, modulação de largura de pulso.

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“…Similarly, another partially isolated multi-port DC/DC converter is proposed by using separate bidirectional half-bridge DC/DC converters for two energy sources, and high controllability is provided for power conditioning [17]. Different from the aforementioned multi-port converters based on two-winding transformers, a three-port isolated (TPI) bidirectional DC/DC converter is proposed for three energy ports by integrating three windings magnetically [18][19][20]. As an isolated DC/DC converter, the TPI bidirectional DC/DC converter has the features of high-gain voltage conversion and electric isolation [5].…”

Section: Introductionmentioning

confidence: 99%

“…In [19], the shifted-phase angle based control is further applied for a triple-half-bridge based TPI bidirectional DC/DC converter, which is used for the hybrid energy source consisting of fuel cells and super-capacitors. In [20], a decoupled power flow control scheme is proposed to mitigate the coupling effects among different ports of the TPI bidirectional DC/DC converter by linearizing the power at the operating points. In [21], the TPI bidirectional DC/DC converter is used to connect different batteries to a grid inverter for battery charging in EV.…”

Section: Introductionmentioning

confidence: 99%

The Chaotic-Based Control of Three-Port Isolated Bidirectional DC/DC Converters for Electric and Hybrid Vehicles

et al. 2016

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Three-port isolated (TPI) bidirectional DC/DC converters have three energy ports and offer advantages of large voltage gain, galvanic isolation ability and high power density. For this reason this kind of converters are suitable to connect different energy sources and loads in electric and hybrid vehicles. The purpose of this paper is to propose chaotic modulation and the related control scheme for TPI bidirectional DC/DC converters, in such a way that the switching harmonic peaks can be suppressed in spectrum and the conducted electromagnetic interference (EMI) is reduced. Two chaotic modulation strategies, namely the continuously chaotic modulation and the discretely chaotic modulation are presented. These two chaotic modulation strategies are applied for TPI bidirectional DC/DC converters with shifted-phase angle based control and phase-shifted PWM control. Both simulation and experiments are given to verify the validity of the proposed chaotic modulation-based control schemes.

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An Isolated Three-Port Bidirectional DC-DC Converter With Decoupled Power Flow Management

Cited by 727 publications

References 29 publications

Analysis of Non-Isolated Multi-Port Single Ended Primary Inductor Converter for Standalone Applications

Analysis of Non-Isolated Multi-Port Single Ended Primary Inductor Converter for Standalone Applications

<b>Impact of modified perturb and observe control on MPPT of PV/battery fed three - port DC‐DC converter

The Chaotic-Based Control of Three-Port Isolated Bidirectional DC/DC Converters for Electric and Hybrid Vehicles

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