Ripple-Port Module-Integrated Inverter for Grid-Connected PV Applications

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

doi:10.1109/tia.2013.2263783

Cited by 69 publications

(12 citation statements)

References 16 publications

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“…Some control techniques oriented studies were reported, such as predictive DC voltage control and bus control [14,15], in order to reduce DC link energy storage component. A common two stage inverter used an extra ripple circuit module, which allows using film capacitors with less energy storage capacity compared to electrolytic capacitors [16]. Other means were reported in the literature to decrease the DC link capacitor or inductor sizes [17][18][19][20][21][22][23][24][25][26][27].…”

Section: Literature Reviewmentioning

confidence: 99%

Analysis of DC Link Energy Storage for Single-Phase Grid-Connected PV Inverters

et al. 2019

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Single-phase grid-connected photovoltaic (PV) inverters (GCI) are commonly used to feed power back to the utility. However, the inverter output power fluctuates at 100 Hz, which can be seen by the PV panel, and this reduces the PV output power. It is important to determine and analyze the correlation between the array voltage and current ripple and the average output power reduction of PV array. Therefore, this paper investigates the relationships between the oscillations due to single-phase switching and the DC link energy storage for PV GCIs. The balanced ripple definition is introduced and compared with the more common centered ripple definition. Some examples are provided that demonstrate the importance of these results, in the inverter design industry. The analysis presented here incorporates inductor trade-offs, which are verified with experimental results.

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Section: Literature Reviewmentioning

confidence: 99%

Analysis of DC Link Energy Storage for Single-Phase Grid-Connected PV Inverters

et al. 2019

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“…Some studies have addressed this DC link voltage ripple issue by adding a buffer circuit into the DC link to decouple the power ripples [13], or by using a ripple port module for ripple cancellation purposes [14]. However, using such solutions in our case will increase the number of components, the complexity, and the cost of the system.…”

Section: Power Pulsation Compensationmentioning

confidence: 99%

Control of a Three-Phase to Single-Phase Back-to-Back Converter for Electrical Resistance Seam Welding Systems

Kissling¹,

Louokdom

Biya-Motto

et al. 2017

Energies

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DC link back-to-back converters are widely used in industrial applications. This interest comes from their power factor unity capability on the utility grid and to maintain regulated output parameters, thanks to the decoupling between the grid and the load side. In this paper, a 150 KVA prototype of DC link back-to-back converter for electrical resistance seam welding applications is described. The focus of the paper is on the control strategy developed to absorb constant power from the three-phase utility grid. The key idea is to allow the voltage on the DC bus to vary in order to avoid the propagation at the input side of the pulsed power required by the load. An estimation procedure of the load parameters is presented too. The effectiveness of this control scheme has been proved by simulations and tests.

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“…Recently, active power decoupling techniques have been reported to deal with this problem. Many interesting topologies have been reported in the last decades [15][16][17][18][19][20][21][22][23][24]. For example, a buck buck type circuit, boost type circuit or buck-boost type circuit is applied as the auxiliary power decoupling circuit [25].…”

Section: Introductionmentioning

confidence: 99%

Active Power Decoupling for Current Source Converters: An Overview Scenario

et al. 2019

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For single-phase current source converters, there is an inherent limitation in DC-side low-frequency power oscillation, which is twice the grid fundamental frequency. In practice, it transfers to the DC side and results in the low-frequency DC-link ripple. One possible solution is to install excessively large DC-link inductance for attenuating the ripple. However, it is of bulky size and not cost-effective. Another method is to use the passive LC branch for bypassing the power decoupling, but this is still not cost-effective due to the low-frequency LC circuit. Recently, active power decoupling techniques for the current source converters have been sparsely reported in literature. However, there has been no attempt to classify and understand them in a systematic way so far. In order to fill this gap, an overview of the active power decoupling for single-phase current source converters is presented in this paper. Systematic classification and comparison are provided for researchers and engineers to select the appropriate solutions for their specific applications.

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Ripple-Port Module-Integrated Inverter for Grid-Connected PV Applications

Cited by 69 publications

References 16 publications

Analysis of DC Link Energy Storage for Single-Phase Grid-Connected PV Inverters

Analysis of DC Link Energy Storage for Single-Phase Grid-Connected PV Inverters

Control of a Three-Phase to Single-Phase Back-to-Back Converter for Electrical Resistance Seam Welding Systems

Active Power Decoupling for Current Source Converters: An Overview Scenario

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