Real-time hardware emulation of WECS based on DFIG during unbalanced type-B and type-E voltage dips for enhanced low voltage ride-through

Thomas, Tomson; Prince, A.; Kumar, Pradeep; Cheriyan, Elizabeth P.

doi:10.1007/s00202-022-01577-6

Cited by 4 publications

(2 citation statements)

References 31 publications

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“…The incorrect θ 2 average value would cause an offset error in the output when the inductor current reaches negative values. If the inductor current is always positive, this error will not change the equations of the circuit, as can be seen in ( 2).…”

Section: Simulation and Experimental Resultsmentioning

confidence: 99%

“…Hardware-in-the-loop (HIL) simulation provides an efficient platform that is widely utilized in prototype development within power electronic applications, serving as a crucial step before proceeding to real-world tests. This approach allows for the comprehensive evaluation of a prototype's performance by connecting it to a real-time simulation of the rest of the system, as can be seen in [1,2]. Thus, the behavior of the prototupe can be checked under normal or extreme operating conditions that may be impractical or cost-prohibitive to replicate in power-level tests.…”

Section: Introductionmentioning

confidence: 99%

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Four-Period Integration Oversampling Method (4PIOM) for Hardware-in-the-Loop power converters with complementary switches

Zamiri

Sanchez

Castro

2023

Preprint

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This paper addresses aliasing oscillations encountered in hardware-in-the-loop (HIL) simulation caused by inaccurate duty cycle detection in high-frequency power electronic applications. Oversampling has been commonly used as a solution to detect switching events more accurately. Traditional oversampling methods use the extra information obtained by oversampling the inputs for further computations to enhance the precision of the simulation. However, these techniques increase the complexity of the model since they take into account several switch states during each simulation step. To mitigate these complexities, the Integration Oversampling Method (IOM) is introduced as a recent alternative with minimum impact on the model complexity. IOM provides a modified switching pattern that effectively prevents aliasing oscillations while maintaining a single switch-state for each simulation step. It can be implemented as an independent block between the controller and the HIL model, so it keeps the HIL model unchanged. This study highlights the limitations detected in applying IOM to the models with complementary switches, including possible undesired short circuits. To overcome these limitations, a novel oversampling method called 4PIOM is presented. 4PIOM further enhances the IOM algorithm by reducing the simulation step and sampling period. The validity of the new method is demonstrated by comparison with previous proposals and also with the same model without any oversampling. Both experimental and MATLAB simulation results prove its superior performance in attenuating the aliasing oscillations and improving the quality of the simulation.

show abstract

Section: Simulation and Experimental Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Four-Period Integration Oversampling Method (4PIOM) for Hardware-in-the-Loop power converters with complementary switches

Zamiri

Sanchez

Castro

2023

Preprint

View full text Add to dashboard Cite

show abstract

Voltage unbalance mitigation with space vector-based PN-sequence control scheme of inverter-interfaced DGs considering demand-side management capability

Ali

Kumar

2023

Electr Eng

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Four-period integration oversampling method (4PIOM) for hardware-in-the-loop power converters with complementary switches

Zamiri,

Sanchez,

de Castro

2024

Electr Eng

View full text Add to dashboard Cite

This paper addresses aliasing oscillations encountered in hardware-in-the-loop (HIL) simulation caused by inaccurate duty cycle detection in high-frequency power electronic applications. Oversampling has been commonly used as a solution to detect switching events more accurately. Traditional oversampling methods use the extra information obtained by oversampling the inputs for further computations to enhance the precision of the simulation. However, these techniques increase the complexity of the model since they take into account several switch states during each simulation step. To mitigate these complexities, the integration oversampling method (IOM) was introduced as a recent alternative with minimum impact on the model complexity. IOM provides a modified switching pattern that effectively prevents aliasing oscillations while maintaining a single switch-state for each simulation step. It can be implemented as an independent block between the controller and the HIL model, so it keeps the HIL model unchanged. This study highlights the limitations detected in applying IOM to the models with complementary switches, including possible undesired short circuits. To overcome these limitations, a novel oversampling method called 4PIOM is presented. 4PIOM further enhances the IOM algorithm by reducing the simulation step and sampling period. The validity of the new method is demonstrated by comparison with previous proposals and also with the same model without any oversampling. Both experimental and MATLAB simulation results prove its superior performance in attenuating the aliasing oscillations and improving the quality of the simulation.

show abstract

Real-time hardware emulation of WECS based on DFIG during unbalanced type-B and type-E voltage dips for enhanced low voltage ride-through

Cited by 4 publications

References 31 publications

Four-Period Integration Oversampling Method (4PIOM) for Hardware-in-the-Loop power converters with complementary switches

Four-Period Integration Oversampling Method (4PIOM) for Hardware-in-the-Loop power converters with complementary switches

Voltage unbalance mitigation with space vector-based PN-sequence control scheme of inverter-interfaced DGs considering demand-side management capability

Four-period integration oversampling method (4PIOM) for hardware-in-the-loop power converters with complementary switches

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