Robust Sliding-Mode Control Design for a Voltage Regulated Quadratic Boost Converter

López-Santos, Oswaldo; Martínez-Salamero, L.; García, Germain; Valderrama-Blavi, Hugo; Sierra-Polanco, Tomás

doi:10.1109/tpel.2014.2325066

Cited by 172 publications

(100 citation statements)

References 37 publications

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“…This objective can be accomplished by using the loop shaping method introduced in [32]. A value of 2 is selected for the combined sensitivity M following criteria presented in [33]. Figure 7 shows the two envelopes resulting after generate the whole space of solutions in the K p -K i plane ensuring robustness for input power values of 10 W (red color) and 100 W (blue color).…”

Section: Dc-link Voltage Regulationmentioning

confidence: 99%

Operation of a Photovoltaic Microinverter as Active Power Filter using the single phase P-Q Theory and Sliding Mode Control

López-Santos

Tilaguy-Lezama

Rico-Ramírez

et al. 2017

Ing.

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Context: Microinverters are widely used in modular photovoltaic installations but its operation with reduced power is limited to inject real power into the grid. One way to optimize the use of microinverters consist of providing them the Active Power Filtering (APF) capability, which allows its use as both distributed generation and compensation unit even under unfavorable conditions of insolation. With this approach, the output stage of the microinverter can provide reactive and distortive components of power in order to compensate power quality defects of a localized load. Method: This paper proposes a non-linear control strategy to integrate the APF function in a singlephase two-stage photovoltaic microinverter. The proposal involves the use of the single-phase P-Q theory to generate the current reference, sliding mode control to achieve a robust tracking of that reference and linear robust control to maintain the power balance regulating the DC-link voltage of the microinverter. The proposed control does not require the use of low-pass filters and in turn uses a recursive average computation improving the general performance of the system. Results: The theoretical approach is validated by means of simulation results in which appropriate levels of harmonic distortion are obtained in the grid-side current for different load types and power levels. The robustness of the control system is tested by applying disturbances in the harmonic content of the load current and its power level obtaining an appropriate dynamic performance adapted to the demands of the application. Conclusions: The main advantage of this proposal is the possibility to add the active filter function to coventional microinverters extending its capability to power conditioning only integrating some algorithms. A simple design method to ensure reliability, robustness and high power quality is detailed. ResumenContexto: Los microinversores son ampliamente utilizados en instalaciones fotovoltaicas modulares pero su operación con potencia reducida es limitada a inyectar potencia real en la red. Una forma de optimizar el uso de los microinversores consiste en proveerles la capacidad para realizar Filtrado Activo de Potencia (FAP), lo que permite su uso como una unidad tanto de generación como de compensación distribuida, incluso en condiciones desfavorables de irradiación solar. Con esta propuesta, la etapa de salida del microinversor puede suministrar componentes de potencia reactiva y de distorsión para compensar defectos en la calidad de energía de una carga localizada. Método: Se propone una estrategia de control no lineal para integrar la función FAP en un microinversor fotovoltaico monofásico de dos etapas. La propuesta involucra el uso de la teoría P-Q monofásica para generar la referencia de corriente, control en modo deslizante para conseguir un seguimiento robusto de dicha referencia y control lineal robusto para mantener el balance de potencia regulando el voltaje del bus DC intermedio del microinversor. El control propuesto no r...

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Section: Dc-link Voltage Regulationmentioning

confidence: 99%

Operation of a Photovoltaic Microinverter as Active Power Filter using the single phase P-Q Theory and Sliding Mode Control

López-Santos

Tilaguy-Lezama

Rico-Ramírez

et al. 2017

Ing.

Self Cite

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“…The test conditions of this experiment where the control parameter power from the AC grid. It has to be pointed out that the switching frequency of the system is variable and depends on both operation point and hysteresis width [25,26].…”

Section: Application To Power Factor Correctionmentioning

confidence: 99%

Loss-Free Resistor-Based Power Factor Correction Using a Semi-Bridgeless Boost Rectifier in Sliding-Mode Control

Marcos-Pastor

Vidal-Idiarte

Cid-Pastor

et al. 2015

IEEE Trans. Power Electron.

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In this work, a Loss-Free Resistor based on a semibridgeless rectifier is proposed for power factor correction applications. This particular bridgeless rectifier type is composed of two different boost cells which operate complementarily during each half-line cycle. In case of two unbalanced inductors, many control techniques can produce different inductor current ripples during each half-line cycle that can result in the addition of a DC component to the line current. This work demonstrates that the application of sliding-mode control by means of hysteretic controllers results in a 1st order stable system that can mitigate these harmful consequences due to its capability to ensure the symmetry of the line input current waveform for both positive and negative half-line cycles. Thus, the system does not absorb any DC component from the grid and it is also capable to reduce dramatically the amplitude of the 3rd harmonic. The theoretical predictions have been validated by means of PSIM simulations and experimentally on a prototype of 1 kW which has been controlled using only one sliding control surface.Index Terms -AC-DC power conversion, loss-free resistor, sliding-mode control, power factor correction, semi-bridgeless boost rectifier. P

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“…Over the past decade a large amount of literature has presented relevant research works on DC-DC converter controllers using the sliding mode algorithm [13][14][15][16][17][18][19][20][21][22][23][24]. The results have confirmed the strong robustness of the sliding mode control over the traditional linear PI control.…”

Section: Introductionmentioning

confidence: 96%

Super-Twisting Differentiator-Based High Order Sliding Mode Voltage Control Design for DC-DC Buck Converters

et al. 2016

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This paper aims to focus on the smooth output of DC-DC buck converters in wireless power transfer systems under input perturbations and load disturbances using the high-order sliding mode controller (HOSM) and HOSM with super-twisting differentiator (HOSM + STD). The proposed control approach needs only measurement of converter output voltage. Theoretical analysis and design procedures, as well as the super-twisting differentiator of the proposed controller are presented in detail with the prescribed convergence law of high-order sliding modes. Comparisons of both simulation and experimental results among conventional proportional-integral (PI) control, traditional sliding mode control (SMC), HOSM and HOSM + STD under various test conditions such as steady state, input voltage perturbations and output load disturbances, are presented and discussed. The results demonstrate and validate the effectiveness and robustness of the proposed control method.

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Robust Sliding-Mode Control Design for a Voltage Regulated Quadratic Boost Converter

Cited by 172 publications

References 37 publications

Operation of a Photovoltaic Microinverter as Active Power Filter using the single phase P-Q Theory and Sliding Mode Control

Operation of a Photovoltaic Microinverter as Active Power Filter using the single phase P-Q Theory and Sliding Mode Control

Loss-Free Resistor-Based Power Factor Correction Using a Semi-Bridgeless Boost Rectifier in Sliding-Mode Control

Super-Twisting Differentiator-Based High Order Sliding Mode Voltage Control Design for DC-DC Buck Converters

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