Investigation of the harmonic response of a photovoltaic system with a solar emulator

Armstrong, S.; Lee, C.K.; Hurley, W.G.

doi:10.1109/epe.2005.219706

Cited by 24 publications

(13 citation statements)

References 6 publications

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“…A pilot cell is used to generate the characteristic curve in the emulator presented in [1] using a lamp to replicate the varying irradiance conditions. Different commercial PV panels cannot be easily emulated.…”

Section: Literature Review On Photovoltaic Emulatorsmentioning

confidence: 99%

Photovoltaic emulator

Binduhewa

Barnes

2013

2013 IEEE 8th International Conference on Industrial and Information Systems

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With the increasing use of photovoltaics (PV), flexible test-systems for PV testing are growing in importance. This is particularly true for low-cost photovoltaic emulationhardware devices which replicate the characteristics of a real photovoltaic (PV) panel but can be tuned to emulate different commercially available units and would allow the replication of varying environmental conditions in the laboratory. The scheme presented in this paper is very low-cost, easily expandable, readily interfaced to other control hardware and can emulate a variety of conditions with minimal setting changes. This methodology uses the output voltage of an adjustable linear voltage regulator which is controlled to replicate the characteristic curve of a photovoltaic panel. Its key features are that it uses the non-linearity of a commercial IC to represent the PV panel and bump-less transfer between this non-linear stage and constant current control which is required for low-voltage outputs.

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Section: Literature Review On Photovoltaic Emulatorsmentioning

confidence: 99%

Photovoltaic emulator

Binduhewa

Barnes

2013

2013 IEEE 8th International Conference on Industrial and Information Systems

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“…The output current is sensed and fed to a reference generator. The reference generator produces a reference output-voltage signal for the power circuit to amplify [1], [29]- [37].…”

Section: Dynamic Performance Of Existing Pv Emulatorsmentioning

confidence: 99%

High Dynamic Performance Nonlinear Source Emulator

Nguyen-Duy¹,

Knott²,

Andersen³

2016

IEEE Trans. Power Electron.

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As research and development of renewable and clean energy based systems is advancing rapidly, the nonlinear source emulator (NSE) is becoming very essential for testing of maximum power point trackers or downstream converters. Renewable and clean energy sources play important roles in both terrestrial and nonterrestrial applications. However, most existing NSEs have only been concerned with simulating energy sources in terrestrial applications, which may not be fast enough for testing of nonterrestrial applications. In this paper, a high-bandwidth NSE is developed that is able to simulate the behaviors of a typical nonlinear source under different critical conditions that can happen during their operations. The proposed 200-W NSE, which consists of a fourth-order output filter buck converter and a novel nonlinear small-signal reference generator, can quickly react not only to an instantaneous change in the input source but also to a load step between nominal and open circuit. Moreover, all of these operation modes have a very fast settling time of only 10 μs, which is hundreds of times faster than that of existing works. This attribute allows for higher speed and a more efficient maximum power point tracking algorithm. The proposed NSE, therefore, offers a superior dynamic performance among devices of the same kind.

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“…In the literature, three main approaches are chosen to design a simulating core. One of the approaches is the use of actual mini PV cells or photo diodes with a controllable illuminant [7]- [9]. Apparently, this method changes the irradiant condition such as partial shading or different sunlight.…”

Section: Introductionmentioning

confidence: 99%

Practical Photovoltaic Simulator with a Cross Tackling Control Strategy Based on the First-hand Duty Cycle Processing

Wang¹,

Jiang²,

Lin³

2015

Journal of Power Electronics

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This paper proposes a methodological scheme for the photovoltaic (PV) simulator design. With the advantages of a digital controller system, linear interpolation is proposed for precise fitting with higher computational efficiency. A novel control strategy that directly tackles two different duty cycles is proposed and implemented to achieve a full-range operation including short circuit (SC) and open circuit (OC) conditions. Systematic design procedures for both hardware and algorithm are explained, and a prototype is built. Experimental results confirm an accurate steady state performance under different load conditions, including SC and OC. This low power apparatus can be adopted for PV education and research with a limited budget.

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Investigation of the harmonic response of a photovoltaic system with a solar emulator

Cited by 24 publications

References 6 publications

Photovoltaic emulator

Photovoltaic emulator

High Dynamic Performance Nonlinear Source Emulator

Practical Photovoltaic Simulator with a Cross Tackling Control Strategy Based on the First-hand Duty Cycle Processing

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