A Modified Double Input Z-source DC-DC Converter for Standalone PV/Battery System Application

Mohammadsalehian, Shamim; Sedaghati, Farzad; Eskandari, Reyhane; Shayeghi, Hossein; Asl, Elias Shokati

doi:10.1109/pedstc49159.2020.9088453

Cited by 8 publications

(4 citation statements)

References 11 publications

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“…A modified z-source dual input DC/DC converter is proposed in [15]. The principle of this method is to optimize the power loss by reducing the number of switches which improves the overall efficiency of the system.…”

Section: Battery Charging In Pv Energy Management Systemsmentioning

confidence: 99%

An Interleaved Battery Charger Circuit for a Switched Capacitor Inverter-Based Standalone Single-Phase Photovoltaic Energy Management System

Patel,

Zhou

2023

Energies

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A single-phase bidirectional DC/DC battery charger with a P&O MPPT current control strategy for a standalone energy management system has been integrated with an interleaved switched capacitor DC/AC inverter with an RMS feedback phase-shifted unipolar sinusoidal PWM control strategy. In the published literature, P&O MPPT control is used to drive a boost converter connected in parallel to a battery charger; this modified strategy combines a P&O MPPT algorithm with current control to drive an interleaving buck-boost battery charger. This battery charger circuit is connected in parallel to a closed loop controlled interleaved inverter that feeds the AC home load. MATLAB/Simulink based simulation circuit was developed and used to validate the successful integration of the interleaved battery charger with the global system. To do this, the system is tested with varying input conditions of irradiance and temperature. The system’s response to these variable inputs is monitored and analysed. The simulation results show the proposed method is effective for standalone battery-based PV systems. The system provides a more efficient and faster response compared with both an interleaved and non-interleaved voltage-controlled battery charger circuit that is also integrated with the global system. This battery charger control strategy is also shown to protect the battery from over-charging as well as discharging below 25%, which can improve and protect the long-term battery performance. Compared with novel industry approaches, the proposed system is simpler by nature due to the reduced number of conversions and therefore a reduced number of components which provides economic advantages.

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Section: Battery Charging In Pv Energy Management Systemsmentioning

confidence: 99%

An Interleaved Battery Charger Circuit for a Switched Capacitor Inverter-Based Standalone Single-Phase Photovoltaic Energy Management System

Patel,

Zhou

2023

Energies

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“…The Z-source comprises two identical inductors and two capacitors, in which the modernization of this configuration has been fluent and conducted to achieve better performance [87], [102], [122], [166], [291], [300], [314], [366]- [368]. A modified Z-source DC-DC converter is proposed by [367].…”

Section: Z-source Convertermentioning

confidence: 99%

“…Therefore, the proposed Z-source dc-dc converter not only has a lower cost but also has a smaller weight and size. In this paper [366], a modified double input DC-DC Z-Source for renewable energy PV/battery applications is presented. All of the operating modes are analyzed and then voltage gain is calculated for three states that show the proposed converter is very suitable for stand-alone applications.…”

Section: Z-source Convertermentioning

confidence: 99%

Modernisation of DC-DC converter topologies for solar energy harvesting applications: A review

Sutikno

Purnama

Aprilianto

et al. 2022

IJEECS

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Solar photovoltaic (PV) power generation has become increasingly important as a renewable source of energy due to the many benefits it offers. These benefits include the ease with which it can be allocated; the absence of noise; the longer life; the absence of pollution; the shorter amount of time required for installation; the high mobility and portability of its parts; and the capability of its output power to meet peak load requirements. DC-DC converters are typically incorporated into solar energy harvesting systems because they allow for the more efficient exploitation of solar cells. One of the difficulties is in the selection of a suitable converter since this has an effect on the operation of the PV system. This study discusses the modernisation of several different DC-DC converter topologies for solar energy harvesting systems. Some of these topologies are boost, buck-boost, single-ended primary-inductance converter (SEPIC), Cuk, and flyback. The topologies have been compared so that detailed information on the complexity of the hardware, the cost of implementation, the efficiency of the energy transfer elements, the tracking efficiency, and the efficiency of the converters can be provided. This paper will be useful as a handy reference in choosing the best converter topology for solar energy harvesting applications.

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“…Undesired volage regulation occurs due to drop across the leakage reactance with change in load. As for high voltage applications, magnetic materials size cannot be reduced as I will require high insulation [5]− [19]. So, a new non-isolated or transformer, high gain DC-DC converter is proposed as a solution.…”

Section: Introductionmentioning

confidence: 99%

Optimal control of a high gain DC- DC converter

Mitra¹,

Rout²

2022

IJPEDS

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<p class="IEEEAbtract">Different types of power conditioning systems are mostly used with renewable energy systems. As the output of solar photovoltaic (PV) is low high voltage converters are required. These converters can be used for both standalone and grid tied systems. A high voltage gain DC-DC converter is proposed which can be used with photovoltaic modules to get high output voltage. This converter can provide a high voltage gain and a proportional integral derivative (PID) controller is used to maintain the high output voltage of the proposed converter coupled with solar photovoltaic module. The PID controller is first designed using classical Ziegler Nichol’s method (ZN) and optimal control of the converter is obtained by using different optimisation methods like particle swarm optimisation (PSO), bacteria foraging algorithm (BFA) and its comparison is presented in this paper.</p>

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A Modified Double Input Z-source DC-DC Converter for Standalone PV/Battery System Application

Cited by 8 publications

References 11 publications

An Interleaved Battery Charger Circuit for a Switched Capacitor Inverter-Based Standalone Single-Phase Photovoltaic Energy Management System

An Interleaved Battery Charger Circuit for a Switched Capacitor Inverter-Based Standalone Single-Phase Photovoltaic Energy Management System

Modernisation of DC-DC converter topologies for solar energy harvesting applications: A review

Optimal control of a high gain DC- DC converter

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